BQ20Z65DBT [TI]
SBS 1.1 compliant Gas Gauge with Impedance Track Technology and advanced charging algorithm 44-TSSOP -40 to 85;
| 型号： | BQ20Z65DBT |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | SBS 1.1 compliant Gas Gauge with Impedance Track Technology and advanced charging algorithm 44-TSSOP -40 to 85 仪表 |
| 文件： | 总237页 (文件大小：1133K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
bq20z60-R1/bq20z65-R1
Technical Reference
Literature Number: SLUU386
January 2010
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Contents
1
2
Preface .............................................................................................................................. 7
1.1
Read This First .............................................................................................................. 7
Notational Conventions ..................................................................................................... 7
1.2
Detailed Description ............................................................................................................ 9
2.1
JEITA Temperature Ranges ............................................................................................... 9
1st Level Protection Features ............................................................................................ 10
2.2.1 Cell Overvoltage (COV) and Cell Undervoltage (CUV) ...................................................... 10
2.2.2 Charge and Discharge Overcurrent ............................................................................ 13
2.2.3 Short-Circuit Protection .......................................................................................... 18
2.2.4 Overtemperature Protection ..................................................................................... 19
2.2.5 Host Watchdog ................................................................................................... 21
2.2.6 AFE Watchdog .................................................................................................... 21
2nd Level Protection Features ........................................................................................... 21
2.3.1 2nd Level (Permanent) Failure Actions ........................................................................ 22
2.3.2 Time-Limit-Based Protection .................................................................................... 23
2.3.3 Limit-Based Protection ........................................................................................... 25
2.3.4 Clearing Permanent Failure ..................................................................................... 27
Gas Gauging ............................................................................................................... 27
2.4.1 Impedance Track Configuration ................................................................................ 27
2.4.2 Gas Gauge Modes ............................................................................................... 28
2.4.3 Qmax ............................................................................................................... 30
Charge Control ............................................................................................................. 32
2.5.1 Charge Control SMBus Broadcasts ............................................................................ 32
2.5.2 Cell Balancing ..................................................................................................... 32
2.5.3 Charge-Inhibit Mode ............................................................................................. 33
2.5.4 Charge-Suspend Mode .......................................................................................... 35
2.5.5 Charging and Temperature Ranges ........................................................................... 37
2.5.6 Precharge .......................................................................................................... 40
2.5.7 Primary Charge Termination .................................................................................... 41
2.5.8 Charging Faults ................................................................................................... 42
2.5.9 Discharge and Charge Alarms .................................................................................. 45
Discharge-Inhibit Mode ................................................................................................... 45
LED Display ................................................................................................................ 46
2.7.1 Display Activation ................................................................................................. 46
2.7.2 Display Configuration ............................................................................................ 47
2.7.3 Display Format .................................................................................................... 48
2.7.4 Permanent Failure Error Codes ................................................................................ 49
2.7.5 LED Current Configuration ...................................................................................... 50
Device Operating Mode .................................................................................................. 50
2.8.1 Normal Mode ...................................................................................................... 50
2.8.2 Battery Pack Removed Mode/System Present Detection ................................................... 51
2.8.3 Sleep Mode ........................................................................................................ 51
2.8.4 Wake Function .................................................................................................... 52
2.8.5 Shutdown Mode .................................................................................................. 53
2.8.6 Ship Mode ......................................................................................................... 53
2.2
2.3
2.4
2.5
2.6
2.7
2.8
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2.9
Security (Enables and Disables Features) ............................................................................. 53
2.10 Calibration .................................................................................................................. 56
2.10.1 Coulomb-Counter Dead Band ................................................................................. 56
2.10.2 Autocalibration ................................................................................................... 56
2.11 Communications ........................................................................................................... 56
2.11.1 SMBus On and Off States ...................................................................................... 56
2.11.2 Packet Error Checking .......................................................................................... 56
2.11.3 bq20z60-R1/bq20z65-R1 Slave Address .................................................................... 56
2.11.4 Broadcasts to Smart Charger and Smart Battery Host ..................................................... 57
A
Standard SBS Commands .................................................................................................. 59
A.1
ManufacturerAccess (0x00) .............................................................................................. 59
A.1.1 System Data ...................................................................................................... 59
A.1.2 System Control ................................................................................................... 61
A.1.3 Extended SBS Commands ...................................................................................... 65
RemainingCapacityAlarm (0x01) ........................................................................................ 66
RemainingTimeAlarm (0x02) ............................................................................................. 66
BatteryMode (0x03) ....................................................................................................... 67
AtRate (0x04) .............................................................................................................. 68
AtRateTimeToFull (0x05) ................................................................................................. 69
AtRateTimeToEmpty (0x06) ............................................................................................. 69
AtRateOK (0x07) .......................................................................................................... 69
Temperature (0x08) ....................................................................................................... 70
A.2
A.3
A.4
A.5
A.6
A.7
A.8
A.9
A.10 Voltage (0x09) ............................................................................................................. 70
A.11 Current (0x0a) .............................................................................................................. 70
A.12 AverageCurrent (0x0b) ................................................................................................... 71
A.13 MaxError (0x0c) ............................................................................................................ 71
A.14 RelativeStateOfCharge (0x0d) ........................................................................................... 71
A.15 AbsoluteStateOfCharge (0x0e) .......................................................................................... 72
A.16 RemainingCapacity (0x0f) ................................................................................................ 72
A.17 FullChargeCapacity (0x10) ............................................................................................... 73
A.18 RunTimeToEmpty (0x11) ................................................................................................. 73
A.19 AverageTimeToEmpty (0x12) ............................................................................................ 73
A.20 AverageTimeToFull (0x13) ............................................................................................... 74
A.21 ChargingCurrent (0x14) ................................................................................................... 74
A.22 ChargingVoltage (0x15) .................................................................................................. 74
A.23 BatteryStatus (0x16) ...................................................................................................... 75
A.24 CycleCount (0x17) ......................................................................................................... 76
A.25 DesignCapacity (0x18) .................................................................................................... 76
A.26 DesignVoltage (0x19) ..................................................................................................... 76
A.27 SpecificationInfo (0x1a) ................................................................................................... 77
A.28 ManufactureDate (0x1b) .................................................................................................. 77
A.29 SerialNumber (0x1c) ...................................................................................................... 78
A.30 ManufacturerName (0x20) ............................................................................................... 78
A.31 DeviceName (0x21) ....................................................................................................... 78
A.32 DeviceChemistry (0x22) .................................................................................................. 79
A.33 ManufacturerData (0x23) ................................................................................................. 79
A.34 Authenticate (0x2f) ........................................................................................................ 80
A.35 CellVoltage4..1 (0x3c..0x3f) .............................................................................................. 80
A.36 SBS Command Values ................................................................................................... 80
B
Extended SBS Commands .................................................................................................. 83
B.1
B.2
B.3
AFEData (0x45) ............................................................................................................ 83
FETControl (0x46) ......................................................................................................... 83
StateOfHealth (0x4f) ...................................................................................................... 84
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B.4
B.5
B.6
B.7
B.8
B.9
SafetyAlert (0x50) ......................................................................................................... 85
SafetyStatus (0x51) ....................................................................................................... 85
PFAlert (0x52) .............................................................................................................. 86
PFStatus (0x53) ........................................................................................................... 87
OperationStatus (0x54) ................................................................................................... 88
ChargingStatus (0x55) .................................................................................................... 88
B.10 ResetData (0x57) .......................................................................................................... 89
B.11 WDResetData (0x58) ..................................................................................................... 89
B.12 PackVoltage (0x5a) ....................................................................................................... 89
B.13 AverageVoltage (0x5d) ................................................................................................... 89
B.14 TS1Temperature (0x5e) .................................................................................................. 90
B.15 TS2Temperature (0x5f) ................................................................................................... 90
B.16 UnSealKey (0x60) ......................................................................................................... 90
B.17 FullAccessKey (0x61) ..................................................................................................... 90
B.18 PFKey (0x62) .............................................................................................................. 91
B.19 AuthenKey3 (0x63) ........................................................................................................ 91
B.20 AuthenKey2 (0x64) ........................................................................................................ 91
B.21 AuthenKey1 (0x65) ........................................................................................................ 91
B.22 AuthenKey0 (0x66) ........................................................................................................ 92
B.23 SafetyAlert2 (0x68) ........................................................................................................ 92
B.24 SafetyStatus2 (0x69) ...................................................................................................... 92
B.25 PFAlert2 (0x6a) ............................................................................................................ 93
B.26 PFStatus2 (0x6b) .......................................................................................................... 93
B.27 ManufBlock1..4 (0x6c..0x6f) ............................................................................................. 94
B.28 ManufacturerInfo (0x70) .................................................................................................. 95
B.29 SenseResistor (0x71) ..................................................................................................... 95
B.30 TempRange (0x72) ........................................................................................................ 95
B.31 LifetimeData1 (0x73) ...................................................................................................... 96
B.32 LifetimeData2 (0x74) ...................................................................................................... 97
B.33 DataFlashSubClassID (0x77) ............................................................................................ 97
B.34 DataFlashSubClassPage1..8 (0x78..0x7f) ............................................................................. 98
B.35 Extended SBS Command Values ....................................................................................... 98
C
Data Flash ....................................................................................................................... 101
C.1
C.2
C.3
Accessing Data Flash ................................................................................................... 101
C.1.1 Data Flash Interface ............................................................................................ 101
C.1.2 Reading a SubClass ............................................................................................ 102
C.1.3 Writing a SubClass ............................................................................................. 102
C.1.4 Example .......................................................................................................... 102
1st Level Safety Class ................................................................................................... 103
C.2.1 Voltage (Subclass 0) ........................................................................................... 103
C.2.2 Current (Subclass 1) ............................................................................................ 108
C.2.3 Temperature (Subclass 2) ..................................................................................... 114
C.2.4 Host Comm (Subclass 4) ...................................................................................... 118
2nd Level Safety ......................................................................................................... 118
C.3.1 Voltage (Subclass 16) .......................................................................................... 118
C.3.2 Current (Subclass 17) .......................................................................................... 125
C.3.3 Temperature (Subclass 18) .................................................................................... 126
C.3.4 FET Verification (Subclass 19) ................................................................................ 130
C.3.5 AFE Verification (Subclass 20) ................................................................................ 131
C.3.6 Fuse Verification (Subclass 21) ............................................................................... 132
Charge Control ........................................................................................................... 134
C.4.1 Charge Temp Cfg (Subclass 32) .............................................................................. 134
C.4.2 Pre-Charge Cfg (Subclass 33) ................................................................................ 136
C.4
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C.4.3 Charge Cfg (Subclass 34) ..................................................................................... 137
C.4.4 Termination Cfg. (Subclass 36) ............................................................................... 143
C.4.5 Cell Balancing Cfg (Subclass 37) ............................................................................. 145
C.4.6 Charging Faults (Subclass 38) ................................................................................ 146
SBS Configuration ....................................................................................................... 152
C.5.1 Data (Subclass 48) ............................................................................................. 152
C.5.2 Configuration (Subclass 49) ................................................................................... 157
System Data .............................................................................................................. 160
C.6.1 Manufacturer Data (Subclass 56) ............................................................................. 160
C.6.2 Manufacturer Info (Subclass 58) .............................................................................. 161
C.6.3 Manuf. Block 2 (Offset 53) ..................................................................................... 161
C.6.4 Manuf. Block 3 (Offset 74) ..................................................................................... 162
C.6.5 Manuf. Block 4 (Offset 95) ..................................................................................... 162
C.6.6 Lifetime Data (Subclass 59) ................................................................................... 162
C.6.7 Lifetime Temp Samples (Subclass 60) ....................................................................... 169
Configuration ............................................................................................................. 169
C.7.1 Registers (Subclass 64) ........................................................................................ 169
C.7.2 AFE (Subclass 65) .............................................................................................. 178
LED Support .............................................................................................................. 179
C.8.1 LED Cfg (Subclass 67) ......................................................................................... 179
Power ...................................................................................................................... 184
C.9.1 Power (Subclass 68) ........................................................................................... 184
C.5
C.6
C.7
C.8
C.9
C.10 Gas Gauging .............................................................................................................. 188
C.10.1 IT Cfg (Subclass 80) .......................................................................................... 188
C.10.2 Current Thresholds (Subclass 81) .......................................................................... 191
C.10.3 State (Subclass 82) ........................................................................................... 193
C.11 Ra Table .................................................................................................................. 195
C.11.1 R_a0 (Subclass 88) ........................................................................................... 195
C.11.2 R_a1 (Subclass 89) ........................................................................................... 196
C.11.3 R_a2 (Subclass 90) ........................................................................................... 197
C.11.4 R_a3 (Subclass 91) ........................................................................................... 198
C.11.5 R_a0x (Subclass 92) .......................................................................................... 199
C.11.6 R_a1x (Subclass 93) .......................................................................................... 200
C.11.7 R_a2x (Subclass 94) .......................................................................................... 201
C.11.8 R_a3x (Subclass 95) .......................................................................................... 202
C.12 PF Status .................................................................................................................. 203
C.12.1 Device Status Data (Subclass 96) .......................................................................... 203
C.12.2 AFE Regs (Subclass 97) ..................................................................................... 208
C.13 Calibration ................................................................................................................. 208
C.13.1 Data (Subclass 104) .......................................................................................... 208
C.13.2 Config (Subclass 105) ........................................................................................ 210
C.13.3 Temp Model (Subclass 106) ................................................................................. 212
C.13.4 Current (Subclass 107) ....................................................................................... 213
C.14 Data Flash Values ....................................................................................................... 214
D
Glossary ......................................................................................................................... 227
Index ....................................................................................................................................... 229
6
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Chapter 1
SLUU386–January 2010
Preface
1.1 Read This First
This manual discusses modules and peripherals of the bq20z60-R1/bq20z65-R1 and its use to build a
complete battery pack gas gauge and protection solution.
1.2 Notational Conventions
The following notation is used when SBS commands and data flash values are mentioned within a text
block:
•
•
•
•
SBS commands are set in italic, e.g., Voltage
SBS bits and flags are capitalized, set in italic and enclosed with square brackets, e.g., [LED1]
Data flash values are set in bold italic e.g., COV Threshold
All data flash bits and flags are capitalized, set in bold italic and enclosed with square brackets, e.g.,
[NR]
All SBS commands, data flash values and flags mentioned in a section are listed at the end of each
section for reference.
The reference format for SBS commands is SBS:Command Name(Command No.)[Flag], or
SBS:ManufacterAccess(0x00):Manufacturer Access Command(MA No.), for example:
SBS:Voltage(0x09), or SBS:ManufacterAccess(0x00):Seal Device(0x0020)
The reference format for data flash values is DF:Class Name:Subclass Name(Subclass ID):Value
Name(Offset)[Flag], for example:
DF:1st Level Safety:Voltage(0):COV Threshold(0), or
DF:Configuration:Registers(64):Operation Cfg A(0)[LED1].
is a trademark of ~None.
is a trademark of ~none.
is a trademark of ~one.
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Preface
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Chapter 2
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Detailed Description
2.1 JEITA Temperature Ranges
The bq20z60-R1/bq20z65-R1 follows the JEITA guidelines which specify that charging voltage and
charging current depend on the temperature. Temperature ranges are used for specifying both what the
charging voltage and charging current should be.
There are three temperature ranges in which charging is allowed and they are defined as:
•
•
•
T1 – T2: Low charging temperature range (T1 ≤ Temperature < T2)
T2 – T3: Standard charging temperature range (T2 ≤ Temperature < T3)
T3 – T4: High charging temperature range (T3 ≤ Temperature < T4)
For added flexibility the standard temperature range is divided into 2 sub-ranges: standard range 1 and
standard range 2. An additional temperature value (T2a) is needed to specify these 2 ranges. These
temperature ranges will be configurable in the gas gauge through the following data flash constants.
•
•
JT1: Lower bound of low charging temperature range, in °C.
JT2: Upper bound of low charging temperature range and lower bound of standard charging
temperature range 1, in °C.
•
•
•
JT2a: Upper bound of standard charging temperature range 1 and lower bound of standard charging
temperature range 2, in °C
JT3: Upper bound of standard charging temperature range 2 and lower bound of high charging
temperature range, in °C.
JT4: Upper bound of high charging temperature range, in °C.
Additional temperature parameters are defined for discharging.
•
•
OT1D and OT2D: The temperature at which discharge will be suspended.
Hi Dsg Start Temp: If the temperature is above Hi Dsg Start Temp when starting discharge then
discharge is not started.
The bq20z60-R1/bq20z65-R1 implements hysteresis for the temperature ranges above using the DF
variable (Temp Hys). This variable specifies the number of degrees of hysteresis that should be used
before switching charging temperature ranges.
Table 2-1. Temperature Ranges in bq20z60-R1/bq20z65-R1
Flag
TR1
TR2
TR3
TR4
TR5
TR6
JEITA Temperature Range
Temp < JT1
Charging Mode
Charge Suspend or Charge Inhibit
Low Temp Charge
JT1 < Temp < JT2
JT2 < Temp < JT2a
JT2a < Temp < JT3
JT3 < Temp < JT4
JT4 < Temp
Std Temp Charge 1
Std Temp Charge 2
High Temp Charge or Charge Inhibit
Charge Suspend or Charge Inhibit
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The active temperature range is indicated using a set of flags. Since hysteresis is implemented for the
temperature ranges, determining the active temperature range depends on the previous state, in addition
to the actual temperature. These flags reside in a status register called TempRange.
2.2 1st Level Protection Features
The bq20z60-R1/bq20z65-R1 supports a wide range of battery and system protection features that are
easily configured or enabled via the integrated data flash.
2.2.1 Cell Overvoltage (COV) and Cell Undervoltage (CUV)
The bq20z60-R1/bq20z65-R1 can detect cell overvoltage/undervoltage and protect battery cells from
damage from battery cell overvoltage/undervoltage. If the over/undervoltage remains over an adjustable
time period, the bq20z60-R1/bq20z65-R1 goes into overvoltage/undervoltage condition and switches off
the CHG/DSG FET. The bq20z60-R1/bq20z65-R1 recovers from a cell overvoltage condition if all the cell
voltages drop below the cell overvoltage recovery threshold. The bq20z60-R1/bq20z65-R1 recovers from
cell undervoltage condition if all the cell voltages rise above the cell undervoltage recovery threshold. An
additional charge current detection requirement for cell undervoltage recovery can be enabled by setting
the CUV_RECOV_CHG bit in the Operation Cfg C register to a 1.
Per JEITA guidelines, the cell overvoltage threshold changes depending on the temperature. Three cell
overvoltage thresholds are specified, one for each operating temperature range.
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1st Level Protection Features
Figure 2-1. COV and CUV
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Table 2-2. COV and CUV
Condition:
COV Alert
COV Condition
Normal
CUV Alert
CUV Condition
Flags:
BatteryStatus
SafetyAlert
[TCA]
[TDA], [FD]
[COV]
[CUV]
SafetyStatus
OperationStatus
[COV]
[CUV]
[XDSG]
FET:
Normal
CHG FET disabled,
enabled during
discharge
Normal
Normal
DSG FET disabled,
enabled during charge
SBS
Comman
d:
ChargingCurrent
ChargingVoltage
Charging
algorithm
0
Charging
algorithm
Charging
algorithm
Charging algorithm
Charging algorithm
Charging
algorithm
0
Charging
algorithm
Charging
algorithm
The bq20z60-R1/bq20z65-R1 indicates cell overvoltage by setting the [COV] flag in SafetyAlert if any
CellVoltage4..1 reaches or surpasses the cell overvoltage limit (LT COV Threshold, ST COV Threshold,
or HT COV Threshold, depending on the current temperature range). The bq20z60-R1/bq20z65-R1 goes
into cell overvoltage condition and changes the [COV] flag in SafetyAlert to the [COV] flag in SafetyStatus
if any of CellVoltage4..1 stays above cell overvoltage for a minimum time period of COV Time. This
function is disabled if COV Time is set to zero.
In cell overvoltage condition, charging is disabled and CHG FET and ZVCHG FET (if used) are turned off,
ChargingCurrent and ChargingVoltage are set to zero, [COV] flag in SafetyAlert is reset, [TCA] flag in
BatteryStatus and [COV] flag in SafetyStatus are set.
The bq20z60-R1/bq20z65-R1 recovers from a cell overvoltage condition if all CellVoltages4..1 are equal to
or lower than the appropriate COV Recovery limit (LT COV Recovery, ST COV Recovery, or HT COV
Recovery) . On recovery the [COV] flag in SafetyStatus is reset, [TCA] flag in BatteryStatus is reset, and
ChargingCurrent and ChargingVoltage are set back to appropriate values per the charging algorithm.
In a cell overvoltage condition, the CHG FET is turned on during discharging to prevent overheating of the
CHG FET body diode.
The bq20z60-R1/bq20z65-R1 indicates cell undervoltage by setting the [CUV] flag in SafetyAlert if any
CellVoltage4..1 reaches or drops below the CUV Threshold limit during discharging. The
bq20z60-R1/bq20z65-R1 goes into cell undervoltage condition and changes the [CUV] flag in SafetyAlert
to the [CUV] flag in SafetyStatus if any of CellVoltage4..1 stays below CUV Threshold limit for a minimum
time period of CUV Time. This function is disabled if CUV Time is set to zero.
In a cell undervoltage condition, discharging is disabled and DSG FET is turned off, the [CUV] flag in
SafetyAlert is reset, the [TDA] and [FD] flags in BatteryStatus and the [CUV] flag in SafetyStatus are set.
The bq20z60-R1/bq20z65-R1 recovers from cell undervoltage condition if all CellVoltages4..1 are equal to
or higher than CUV Recovery limit (and charge current detected if CUV_RECOV_CHG is set). On
recovery, the [CUV] flag in SafetyStatus is reset, [XDSG] flag is reset, the [TDA] and [FD] flags are reset,
and ChargingCurrent and ChargingVoltage are set back to appropriate values per the charging algorithm.
In cell undervoltage condition, the DSG FET is turned on during charging to prevent overheating of the
DSG FET body diode.
Related Variables:
•
•
•
•
•
•
•
•
•
DF:1st Level Safety:Voltage(0): LT COV Threshold(0)
DF:1st Level Safety:Voltage(0): ST COV Threshold(4)
DF:1st Level Safety:Voltage(0): HT COV Threshold(8)
DF:1st Level Safety:Voltage(0):COV Time(12)
DF:1st Level Safety:Voltage(0): LT COV Recovery(2)
DF:1st Level Safety:Voltage(0): ST COV Recovery(6)
DF:1st Level Safety:Voltage(0): HT COV Recovery(10)
DF:1st Level Safety:Voltage(0):CUV Threshold(13)
DF:1st Level Safety:Voltage(0):CUV Time(15)
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1st Level Protection Features
•
•
•
•
•
•
•
•
•
•
•
•
DF:1st Level Safety:Voltage(0):CUV Recovery(16)
DF:Charge Control:Charge Cfg(34):LT Chg Current1(2)
SBS:ChargingCurrent(0x14)
SBS:ChargingVoltage(0x15)
SBS:BatteryStatus(0x16)[TCA],[TDA],[FD],[DSG]
SBS:CellVoltage4(0x3c)
SBS:CellVoltage3(0x3d)
SBS:CellVoltage2(0x3e)
SBS:CellVoltage1(0x3f)
SBS:SafetyAlert(0x50)[CUV],[COV]
SBS:SafetyStatus(0x51)[CUV],[COV]
SBS:OperationStatus(0x54)[XDSG]
2.2.2 Charge and Discharge Overcurrent
The bq20z60-R1/bq20z65-R1 has two independent tiers (levels) of overcurrent protection for charge and
discharge. These two tiers require the Current value to be greater than or equal to a programmed OC
Threshold in either charge or discharge state for a period greater than OC Time Limit. If the OC Time Limit
for any of the overcurrent protections is set to 0, that specific feature is disabled.
Table 2-3. Charge and Discharge Overcurrent
SafetyAlert
SafetyStatus
Protection
OC Threshold
OC (1st Tier)Chg
OC (2nd Tier) Chg
OC (1st Tier) Dsg
OC (2nd Tier) Dsg
AFE OC Dsg
OC Time Limit
OC Recovery Threshold
Flag
Flag
Tier-1
Charge
[OCC]
[OCC2]
[OCD]
[OCD2]
–
[OCC]
[OCC2]
[OCD]
OC(1st Tier) Chg Time
OC (2nd Tier) Chg Time
OC (1st Tier) Dsg Time
OC (2nd Tier Dsg Time
AFE OC Dsg Time
OC Chg Recovery
Tier-2
Charge
Tier-1
Discharge
OC Dsg Recovery
Tier-2
Discharge
[OCD2]
[AOCD]
Tier-3
Discharge
AFE OC DsgRecovery for
Current Recovery Time
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Current Within Limit
Stop and Reset Timer
Current
≥ OC Threshold
Current < OC Threshold
AND Timer < OC Time Limit
OC Alert
Start
Timer
Wait
Current
≥ OC Threshold
SafetyAlertFlag set
AverageCurrent ≤ OC Recovery
Threshold
AND Timer ≥ Current Recovery
Time
Current ≥ OC Threshold
AND Timer ≥ OC Time Limit
OC Condition
SafetyStatusFlag set
Stop and Reset Timer
[NR] = 1 AND
AverageCurrent > OC Recovery
[NR] = 1 AND
Threshold
AND Timer < Current Recovery
Time
Current
≤ OC Recovery Threshold
Reinsert Battery Pack
[PRES] transitions from
0 to 1
Non-Removable Recovery
[NR] = 0
AND [PRES] transitions from 1 to 0
AND Non-removable Configuration
Condition bit not set
Start
Timer
Wait
AverageCurrent
≤ OC Recovery Threshold
Pack Removed
[PRES] = 0
Figure 2-2. OC Protection
For the first two tiers of overcurrent protection, the specific flag in SafetyAlert is set if Current exceeds the
OC Threshold. The bq20z60-R1/bq20z65-R1 changes the specific flag in SafetyAlert to the specific flag in
SafetyStatus if the Current stays above the OC Threshold limit for at least OC Time Limit period. This
function is disabled if the OC Time Limit is set to zero. The SafetyStatus flag is reset if the Current falls
below the OC Recovery Threshold.
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If the timer of any tier expires during charging, the CHG FET is turned off and ZVCHG FET (if used) is
turned off. When this occurs, the OC Time Limit timer is started from 0, ChargingCurrent and
ChargingVoltage are set to 0, the [TCA] flag in BatteryStatus is set, and the appropriate SafetyStatus tier
flag is set.
However, when the bq20z60-R1/bq20z65-R1 has either of [OCC] or [OCC2] flags in SafetyStatus set, the
CHG FET are turned on again during discharge (Current ≤ (–)Dsg Current Threshold). This prevents
overheating of the CHG FET body diode during discharge. No other flags change state until full recovery
is reached. This action is not affected by the setting of the [NR] bit.
If the timer of either of the first two tiers expires during discharging, the DSG FET is turned off and the
ZVCHG FET (if used) is turned on. When this occurs, the OC Time Limit timer is started from 0,
ChargingCurrent is set to Pre-chg Current, [XDSGI] flag is set, [TDA] flag is set, and [OCD] tier flag is
set.
When the AFE detects a discharge-overcurrent fault, the charge and discharge FETs are turned off. When
the bq20z60-R1/bq20z65-R1 identifies the overcurrent condition and the OC Time Limit timer is started
from 0, [TDA] flag is set, ChargingCurrent is set to 0, and [AOCD] is set.
However, when the bq20z60-R1/bq20z65-R1 has any [OCD], [OCD2], [AOCD] set, the DSG FET is turned
on again during charging (Current ≥ Chg Current Threshold). This prevents overheating of the
discharge-FET body diode during charge. No other flags change state until full recovery is reached. This
action is not affected by the state of [NR] bit.
Table 2-4. Overcurrent Conditions
Conditio
n
Charging
Current
Charging
Voltage
Protection
Flags
FET
SafetyAlert SafetyStatus BatteryStatus
[OCC]
OperationStatus
Tier-1
Charge
OC alert
Normal
Charging
algorithm
Charging
algorithm
OC
condition
[OCC]
[OCC2]
[OCD]
[TCA]
[TCA]
[TDA]
CHG FET disabled,
enabled during
discharge
0
0
Tier-2
Charge
OC alert
[OCC2]
Normal
Charging
algorithm
Charging
algorithm
OC
condition
CHG FET disabled,
enabled during
discharge
0
0
Tier-1
Discharge
OC alert
[OCD]
Normal
Charging
algorithm
Charging
algorithm
OC
condition
[XDSGI]
DSG FET disabled,
enabled during charge
Pre-chg
Current
Charging
algorithm
Tier-2
Discharge
OC Alert
[OCD2]
Normal
Charging
algorithm
Charging
algorithm
OC
condition
[OCD2]
[AOCD]
[TDA]
[TDA]
[XDSGI]
[XDSGI]
DSG FET disabled,
enabled during charge
Pre-chg
Current
Charging
algorithm
Tier-3
Discharge
OC
condition
CHG FET and DSG
FET disabled
0
Charging
algorithm
The bq20z60-R1/bq20z65-R1 can individually configure each overcurrent-protection feature to recover via
two different methods, based on the state of the [NR] bit.
Standard Recovery, where [NR] = 0 and the overcurrent tier is not selected in Non-Removable Cfg
register. When the pack is removed and reinserted, the condition is cleared. Pack removal and reinsertion
is detected by a low-to-high-to-low transition on the PRES input. When the overcurrent tier is selected in
Non-Removable Cfg, that particular feature uses the Non-Removable Battery Mode recovery.
Non-Removable Battery Mode Recovery, where [NR] = 1. The state of Non-Removable Cfg has no
consequence. This recovery requires AverageCurrent to be ≤ the recovery threshold and for the OC Time
Limit timer ≥ Current Recovery Time.
When a charging-fault recovery condition is detected, then the CHG FET is allowed to be turned on, if
other safety and configuration states permit, [TCA] in BatteryStatus is reset, ChargingCurrent and
ChargingVoltage are set to the appropriate value per the charging algorithm, and the appropriate
SafetyStatus flag is reset.
15
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When a discharging-fault recovery condition is detected, the DSG FET is allowed to be turned on if other
safety and configuration states permit, [TDA] flag is reset, ChargingCurrent and ChargingVoltage are set
to the appropriate value per the charging algorithm and the [XDSG] and the appropriate SafetyStatus flag
is reset.
Discharge
Current
AFE
Hardware
Protection
AFE
SC DSG
AFE SC Dsg Cfg
Bit 3–Bit 0
AFE
OC DSG
AFE OC Dsg
2nd Level
SOC DSG
Gas Gauge
Software Protection
(1-second update interval)
SOC Dsg
1
st Level
OC (2nd Tier) Dsg
OC(2nd Tier) Dsg
OC (1st Tier) Dsg
1
st Level
OC (1st Tier) Dsg
Time
Figure 2-3. Overcurrent Protection Levels
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1st Level Protection Features
Discharge Current Below
AFE Limit
AFE detects over current
discharge fault
AFE Fault Condition
Charging Disabled
Discharging Disabled
AverageCurrent ≤ AFE
OC Dsg Recovery
AND Timer ≥ Current
Recovery Time
Gas Gauge identifies overcurrent condition
AOCD Condition
Charging Allowed
Discharging Disabled
[DSG] = 1 AND
AverageCurrent > AFE OC
Dsg Recovery
AND Timer < Current
Recovery Time
[DSG] = 1 AND AverageCurrent
≤ AFE OC Dsg Recovery
Non-Removable Recovery
Start
Timer
Wait
AverageCurrent
[DSG] = 0
≤ AFE OC Dsg Recovery
AND [PRES] transitions from 1 to 0
AND AOCD not set in non-
removable configuration
Reinsert Battery Pack
[PRES] transitions from 0 to 1
Pack Removed
[PRES] = 0
Figure 2-4. AFE Discharge Overcurrent Protection
Related Variables:
•
•
•
DF:1st Level Safety:Current(1):OC(1st Tier) Chg(0)
DF:1st Level Safety:Current(1):OC(1st Tier) Chg Time(2)
DF:1st Level Safety:Current(1):OC Chg Recovery(3)
17
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•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
DF:1st Level Safety:Current(1):OC(1st Tier) Dsg(5)
DF:1st Level Safety:Current(1):OC(1st Tier) Dsg Time(7)
DF:1st Level Safety:Current(1):OC Dsg Recovery(8)
DF:1st Level Safety:Current(1):OC(2nd Tier) Chg(10)
DF:1st Level Safety:Current(1):OC(2nd Tier) Chg Time(12)
DF:1st Level Safety:Current(1):OC(2nd Tier) Dsg(13)
DF:1st Level Safety:Current(1):OC(2nd Tier) Dsg Time(15)
DF:1st Level Safety:Current(1):Current Recovery Time(16)
DF:1st Level Safety:Current(1):AFE OC Dsg(17)
DF:1st Level Safety:Current(1):AFE OC Dsg Time(18)
DF:1st Level Safety:Current(1):AFE OC Dsg Recovery(19)
DF:Charge Control:Charge Cfg(33):Pre-chg Current (4)
DF:Configuration:Registers(64):Operation Cfg B(2)[NR]
DF:Configuration:Registers(64):Non-Removable Cfg(8)
SBS:Current(0x0a)
SBS:AverageCurrent(0x0b)
SBS:ChargingCurrent(0x14)
SBS:ChargingVoltage(0x15)
SBS:BatteryStatus(0x16)[TCA],[TDA]
SBS:SafetyAlert(0x50)
SBS:SafetyStatus(0x51)
SBS:OperationStatus(0x54)[XDSGI]
2.2.3 Short-Circuit Protection
The bq20z60-R1/bq20z65-R1 short-circuit protection is controlled by the AFE, but is recovered by the gas
gauge. This allows different recovery methods to accommodate various applications.
AFE charge short-circuit and discharge short-circuit protection are configured by the data flash
AFE SC Chg Cfg and AFE SC Dsg Cfg registers, respectively.
When the AFE detects a short-circuit-in-charge or short-circuit-in-discharge fault, the charge and
discharge FETs are turned off. The bq20z60-R1/bq20z65-R1 identifies the short-circuit condition (charge
or discharge current direction) and the internal Current_Fault timer is started from 0, either [TCA] or [TDA]
in BatteryStatus is set, ChargingCurrent and ChargingVoltage are set to 0 (only if in charge mode), and
either [SCC] or [SCD] is set. If the short-circuit condition is in discharge, then [XDSG] flag is also set.
Each bq20z60-R1/bq20z65-R1 short-circuit protection feature can be individually configured to recover via
two different methods, based on the setting of the [NR] bit.
Standard Recovery is where [NR] = 0 and the overcurrent tier is not selected in Non-Removable Cfg.
When the pack is removed and re-inserted, the condition is cleared. Pack removal and re-insertion is
detected by transition on the PRES input from low to high to low. When the overcurrent tier is selected in
Non-Removable Cfg, that particular feature uses the Non-Removable Battery Mode recovery.
Non-Removable Battery Mode Recovery is where [NR] = 1. The state of Non-Removable Cfg has no
consequence when the [NR] bit is set to 1. This recovery requires AverageCurrent to be ≤ the
AFE SC Recovery threshold and for the internal Current_Fault timer to be ≥ Current Recovery Time.
When the recovery condition for a charging fault is detected, the CHG FET is allowed to be turned on if
other safety and configuration states permit. The ZVCHG FET also returns to previous state. When this
occurs, [TCA] in BatteryStatus is reset, ChargingCurrent and ChargingVoltage are set to the appropriate
values per the charging algorithm, and the appropriate SafetyStatus flag is reset.
When the recovery condition for a discharging fault is detected, the DSG FET is allowed to be turned on if
other safety and configuration states permit. The ZVCHG FET also returns to its previous state. When this
occurs, [TDA] is reset, ChargingCurrent and ChargingVoltage are set to the appropriate value per the
charging algorithm, and [XDSG] and the appropriate SafetyStatus flags are reset.
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Table 2-5. Short-Circuit Protection
Short
Circuit
Charging
Current
Charging
Voltage
Clear
Threshold
Condition
Flags set
FET
Charge
AFE SC Chg Cfg
[SCC] SafetyStatus,
CHG FET disabled,
0
0
[TCA] BatteryStatus
enabled during discharge
AFE SC
Recovery
Discharge AFE SC Dsg Cfg
[SCD] SafetyStatus,
[TDA] BatteryStatus,
[XDSG]OperationStatus
DSG FET disabled,
enabled during charge
0
per
charging
algorithm
Related Variables:
•
•
•
•
•
•
•
•
•
DF:1st Level Safety:Current(1):AFE SC Chg Cfg(21)
DF:1st Level Safety:Current(1):AFE SC Dsg Cfg(22)
DF:1st Level Safety:Current(1):AFE SC Recovery(23)
DF:Configuration:Registers(64):Operation Cfg B(2)[NR]
DF:Configuration:Registers(64):Non-Removable Cfg(8)
SBS:AverageCurrent(0x0b)
SBS:BatteryStatus(0x16)[TCA],[TDA]
SBS:SafetyStatus(0x51)[SCC],[SCD]
SBS:OperationStatus(0x54)[XDSG]
2.2.4 Overtemperature Protection
The bq20z60-R1/bq20z65-R1 has overtemperature protection for both charge and discharge conditions
with separate thresholds and alarms for the 2 temperature sensors TS1 and TS2.
The bq20z60-R1/bq20z65-R1 sets the overtemperature charging [OT1C] flag in SafetyAlert if the pack
temperature measured on TS1 reaches or surpasses the OT1 Chg Threshold during charging. The
bq20z60-R1/bq20z65-R1 changes [OT1C] in SafetyAlert to an overtemperature charging condition if the
temperature on TS1 stays above the OT1 Chg Threshold limit for a time period of OT1 Chg Time. This
function is disabled if OT1 Chg Time is set to zero. Similarly, the bq20z60-R1/bq20z65-R1 sets the
overtemperature charging [OT2C] flag in SafetyAlert2 if the pack temperature measured on TS2 reaches
or surpasses the OT2 Chg Threshold during charging. The bq20z60-R1/bq20z65-R1 changes [OT2C]
inSafetyAlert2 to an overtemperature charging condition if the temperature on TS2 stays above the OT2
Chg Threshold limit for a time period of OT2 Chg Time. This function is disabled if OT2 Chg Time is set
to zero.
If [OTFET] is set and the bq20z60-R1/bq20z65-R1 is in overtemperature charging condition, charging is
disabled and the CHG FET is turned off, the ZVCHG FET is turned off if configured for use,
ChargingCurrent and ChargingVoltage are set to zero, the [OT1C] flag in SafetyAlert (or [OTC2] in
SafetyAlert2) is cleared, and [TCA] in BatteryStatus and the [OT1C] flag in SafetyStatus (or [OTC2] in
SafetyStatust2) are set.
The bq20z60-R1/bq20z65-R1 recovers from an [OT1C] condition if TS1Temperature is equal to or below
the OT1 Chg Recovery limit. The bq20z60-R1/bq20z65-R1 recovers from an [OTC2] condition if
TS2Temperature is equal to or below the OT2 Chg Recovery limit. On recovery the [OT1C] flag in
SafetyStatus (or [OTC2] flag in SafetyStatus2) is cleared, [OTA] and [TCA] in BatteryStatus are cleared,
ChargingCurrent and ChargingVoltage are set back to their appropriate values per the charging algorithm,
and the CHG FET returns to its previous state.
In an [OT1C] or [OT2C] condition, the CHG FET is turned on during discharging to prevent overheating of
the CHG FET body diode.
The bq20z60-R1/bq20z65-R1 sets the overtemperature discharging [OT1D] flag in SafetyAlert if the pack
temperature measured on TS1 reaches or surpasses the OT1 Dsg Threshold during discharging. The
bq20z60-R1/bq20z65-R1 changes [OT1D] SafetyAlert to an overtemperature discharging condition if the
temperature on TS1 stays above the OT1 Dsg Threshold limit for a time period of OT1 Dsg Time. This
function is disabled if OT1 Dsg Time is set to zero. Similarly, the bq20z60-R1/bq20z65-R1 sets the
19
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overtemperature discharging [OT2D] flag in SafetyAlert2 if the measured temperature on TS2 reaches or
surpasses the OT2 Dsg Threshold during discharging. The bq20z60-R1/bq20z65-R1 changes [OT2D] in
SafetyAlert2 to an overtemperature discharging condition if the temperature on TS2 reaches or surpasses
the OT2 Dsg Threshold limit for a time period of OT2 Dsg Time. This function is disabled if OT2 Dsg
Time is set to zero.
If [OTFET] is set and bq20z60-R1/bq20z65-R1 is in an overtemperature discharging condition, discharging
is disabled and the DSG FET is turned off, ChargingCurrent is set to zero, the [OT1D] flag in SafetyAlert
(or [OT2D] in SafetyAlert2) is cleared, [TDA] is set, [XDSG] flag is set and the [OT1D] flag in SafetyStatus
(or [OT2D] flag in SafetyStatus2) is set.
The bq20z60-R1/bq20z65-R1 recovers from an [OT1D] condition if TS1Temperature is equal to or below
the OT1 Dsg Recovery limit. The bq20z60-R1/bq20z65-R1 recovers from an [OT2D] condition if
TS2Temperature is equal to or below the OT2 Dsg Recovery limit. On recovery, [OT1D] flag in
SafetyStatus (or [OT2D] flag in SafetyStatus2) is cleared, [TDA] and [OTA] are cleared, ChargingCurrent
is set back to the appropriate value per the charging algorithm, [XDSG] is cleared, and the DSG FET is
allowed to switch on again.
In an overtemperature discharging condition, the DSG FET is turned on during charging to prevent
overheating of the DSG FET body diode
Table 2-6. Overtemperature Protection
Alert Time
Limit
SafetyAlert
Flags set
Recovery
Threshold
Alert Threshold
Overtemp Condition
Charge
OT1 Chg Threshold,
OT2 Chg Threshold
OT1 Chg Time,
OT2 Chg Time
[OT1C],
[OT2C]
[OT1C] SafetyStatus Flag (or [OT2C]
SafetyStatus2 Flag) set, [TCA] and
[OTA] BatteryStatus set,
OT1 Chg Recovery,
OT2 Chg Recovery
ChargingCurrent = 0,
ChargingVoltage = 0, if [OTFET] is
set then CHG FET is turned off
Discharge
OT1 Dsg Threshold,
OT2 Dsg Threshold
OT1 Dsg Time,
OT2 Dsg Time
[OT1D],
[OT2D]
[OT1D] SafetyStatus Flag (or [OT2D]
SafetyStatus2 Flag) set, [TDA] and
[OTA] BatteryStatus set,
OT1 Dsg Recovery,
OT2 Dsg Recovery
ChargingCurrent = 0,
if [OTFET] is set then [XDSG] set
and DSG FET off
Related Variables:
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
DF:1st Level Safety:Temperature(2):OT1 Chg Threshold(0)
DF:1st Level Safety:Temperature(2):OT1 Chg Time(2)
DF:1st Level Safety:Temperature(2):OT1 Chg Recovery(3)
DF:1st Level Safety:Temperature(2):OT2 Chg Threshold(5)
DF:1st Level Safety:Temperature(2):OT2 Chg Time(7)
DF:1st Level Safety:Temperature(2):OT2 Chg Recovery(8)
DF:1st Level Safety:Temperature(2):OT1 Dsg Threshold(10)
DF:1st Level Safety:Temperature(2):OT1 Dsg Time(12)
DF:1st Level Safety:Temperature(2):OT1 Dsg Recovery(13)
DF:1st Level Safety:Temperature(2):OT2 Dsg Threshold(15)
DF:1st Level Safety:Temperature(2):OT2 Dsg Time(17)
DF:1st Level Safety:Temperature(2):OT2 Dsg Recovery(18)
DF:Configuration:Registers(64):Operation Cfg B(2)[OTFET]
SBS:TS1Temperature(0x5e)
SBS:TS2Temperature(0x5f)
SBS:ChargingCurrent(0x14)
SBS:ChargingVoltage(0x15)
SBS:BatteryStatus(0x16)[TCA],[TDA], [OTA]
SBS:SafetyAlert(0x50)[OT1C],[OT1D]
SBS:SafetyStatus(0x51)[OT1C],[OT1D]
SBS:SafetyAlert2(0x68)[OT2C],[OT2D]
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2nd Level Protection Features
•
•
SBS:SafetyStatus2(0x69)[OT2C],[OT2D]
SBS:OperationStatus(0x54)[XDSG]
2.2.5 Host Watchdog
The bq20z60-R1/bq20z65-R1 can be configured to require the host system to communicate with the
battery periodically, else the battery disables charging and discharging. The Host Watchdog function is
only active in Normal Power mode and is disabled if Host Watchdog Timeout is set to 0.
If the bq20z60-R1/bq20z65-R1 does not receive any valid SMBus communications for
Host Watchdog Timeout period of time, the FETs are turned off, ChargingVoltage and ChargingCurrent
are set to 0, [TCA] and [TDA] in BatteryStatus, [XDSG] in OperationStatus, and [HWDG] in SafetyStatus
are all set.
For normal recovery to be achieved, normal SMBus communication must be resumed. When this occurs,
the FETs are returned to the normal operating state, [TCA] and [TDA] in BatteryStatus are cleared,
ChargingCurrent and ChargingVoltage are set to the appropriate value per the charging algorithm, and
[XDSG] and [HWDG] are cleared.
Related Variables:
•
•
•
•
•
•
DF:1st Level Safety:Host Comm(3):Host Watchdog Timeout(0)
SBS:ChargingCurrent(0x14)
SBS:ChargingVoltage(0x15)
SBS:BatteryStatus(0x16)[TCA],[TDA]
SBS:SafetyStatus(0x51)[HWDG]
SBS:OperationStatus(0x54)[XDSG]
2.2.6 AFE Watchdog
The AFE automatically turns off the CHG FET, DSG FET and ZVCHG FET (if used), if it does not receive
the appropriate frequency on the WDI input from gas gauge. The gas gauge has no warning that this is
about to happen, but it can report the occurrence once the bq20z60-R1/bq20z65-R1 is able to interrogate
the AFE.
When the XALERT signal is triggered, the bq20z60-R1/bq20z65-R1 reads the STATUS register of the
AFE. If [WDF] is set, the bq20z60-R1/bq20z65-R1 also sets [WDF] in SafetyStatus, and periodic
verification of the AFE RAM is undertaken. If verification of the AFE RAM fails, then the FETs turn off.
Verification of the AFE RAM continues once every second. If the periodic verification passes, then [WDF]
in SafetyStatus is cleared and the FETs return to normal operation.
Related Variable:
•
SBS:SafetyStatus(0x51)[WDF]
2.3 2nd Level Protection Features
The bq20z60-R1/bq20z65-R1 provides features that can be used to indicate a more serious fault via the
SAFE output. This output can be used to blow an in-line fuse to permanently disable the battery pack from
charge or discharge activity.
If any PF Threshold condition is met, the appropriate PFAlert flag is set. If the PF Threshold condition is
cleared within the PF time limit, the appropriate PFAlert flag is cleared. But if the PF Threshold condition
continues over the PF Time Limit, then the bq20z60-R1/bq20z65-R1 goes into a permanent failure
condition and the PFStatus flag is set, ad the PFlert flag is cleared.
When any NEW cause of a permanent failure is set in PFStatus function, the NEW cause is added to
Saved PF Flags 1..2. This allows Saved PF Flags 1..2 to show ALL permanent failure conditions that
have occurred.
On the first occasion of a permanent failure indicated by PFStatus or PFStatus2 change from 0x00, the
PFStatus and PFStatus2 value is stored in Saved 1st PF Flags 1..2.
21
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PF Condition
CHG, DSG, ZVCHG FET turns off.
[TCA] flag set, [TDA] flag set.
Data Flash Access Read-Only.
ChargingCurrent = 0
ChargingVoltage = 0
If bit in Permanent Fail Cfg or
Permanent Fail Cfg 2 is set,
drive SAFE pin high and [PF] flag in
SafetyStatus or SafetyStatus2 is set
(Monitored Value ≥ PF Threshold
AND Timer ≥ PF Time Limit)
OR
(AFE_Fail_Counter ≥ Max Error Limit )
PFKey to ManufacturerAccess
PF Alert
Start
Timer
Wait
Monitored Value < PF Threshold OR
Monitored Value
AFE_Fail_Counter = 0
No PF
≥ PF Threshold
Stop and Reset Timer
Start
AFE
Timer
Decrement
AFE_Fail_
Counter
Monitored Value ≥ PF Threshold
AFE Timer
≥ AFE Fail
Recovery Time
Figure 2-5. 2nd Level Protection
2.3.1 2nd Level (Permanent) Failure Actions
When the PFStatus or PFStatus2 register changes from 0x00 to indicate a permanent failure, then the
following actions are taken in sequence.
•
•
•
•
•
•
CHG, DSG, and ZVCHG FETs are turned OFF.
The [TCA] and [TDA] flags in BatteryStatus are set.
Data flash write access is then disabled, but the data flash can be read.
ChargingCurrent and ChargingVoltage are set to 0.
The appropriate bit in Saved PF Flags 1 or Saved PF Flags 2 is set.
If the appropriate bit in Permanent Fail Cfg is set, then 0x3672 is programmed to Fuse Flag, and the
SAFE pin is driven and latched high. The [PF] flag in SafetyStatus is also set.
Related Variables:
•
•
•
•
•
•
•
DF:Configuration:Registers(64):Permanent Fail Cfg 1(6), Permanent Fail Cfg 2(8)
DF:PF Status:Device Status Data(96):Saved PF Flags 1(0), Saved PF Flags 2(2)
DF:PF Status:Device Status Data(96):Fuse Flag(2)
DF:PF Status:Device Status Data(96):Saved 1st PF Flags 1(32), Saved 1st PF Flags 2(34)
SBS:ChargingCurrent(0x14)
SBS:ChargingVoltage(0x15)
SBS:BatteryStatus(0x16)[TCA],[TDA]
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2nd Level Protection Features
•
•
SBS:SafetyStatus(0x51)[PF]
SBS:PFStatus(0x53)
2.3.2 Time-Limit-Based Protection
The bq20z60-R1/bq20z65-R1 reports a 2nd level protection alert by setting the appropriate flag in the
PFAlert or PFAlert2 register if the monitored value goes beyond the Protection Threshold. If the monitored
value stays beyond the Protection Threshold over the Max Alert duration, the bq20z60-R1/bq20z65-R1
reports a 2nd level permanent failure, clears the appropriate PFAlert flag, and sets the appropriate
PFStatus flag. See Table 2-7 for all Protection Thresholds and Max Alert durations.
Safety Overvoltage Protection— The bq20z60-R1/bq20z65-R1 monitors the individual cell voltages for
extreme values.
Safety Undervoltage Protection— The bq20z60-R1/bq20z65-R1 monitors the individual cell voltages for
extreme undervoltage values. Additionally, the bq20z60-R1/bq20z65-R1 can check cell voltages
upon wakeup from shutdown mode while the charge and precharge FETs are turned off (to detect
copper deposition).
Cell Imbalance Fault— Two methods of cell imbalance detection are implemented to provide CIM
detection both while charging and at rest. Two safety CIM flags are used, one for each detection
methods. CIM_A reflects faults detected using the active CIM detection and CIM_R reflects faults
detected using the at rest CIM detection. These flags and the bits associated with them are shown
in Table 2-7.
At Rest Detection
The at rest detection mechanism starts detection if all of following conditions are reached:
•
•
Any (CellVoltage4..1) > Rest CIM Check Voltage
|Current| ≤ Rest CIM Current for CIM Battery Rest Time
The bq20z60-R1/bq20z65-R1 sets [CIM_R] in PFAlert if the following condition is met:
Max difference between any (CellVoltage4..1) > Rest CIM Fail Voltage
•
If the above condition remains active for more than Rest CIM Time, the device goes into
permanent fail condition and moves [CIM_R] from PFAlert to PFStatus. Set Rest CIM Time to 0 to
disable this CIM detection.
Active Detection
The active detection method during charging is activated when the following conditions are met:
•
•
Any (CellVoltage4..1) > Active CIM Check Voltage
Current ≥ Charge Threshold Current
The bq20z60-R1/bq20z65-R1 sets [CIM_A] in PFAlert2 if the following condition is met:
Max difference between any (CellVoltage4..1) > Active CIM Fail Voltage
•
If above condition remains active for more than Active CIM Time, the bq20z60-R1/bq20z65-R1
goes into permanent fail condition and moves [CIM_A] from PFAlert2 to PFStatus2. Set Active CIM
Time to 0 to disable this CIM detection.
2nd Level Protection IC Input— The PFIN input of the bq20z60-R1/bq20z65-R1 can be used to
determine the state of an external protection device such as the bq294xx. The
bq20z60-R1/bq20z65-R1 watches for the PFIN pin being driven low by an external device.
Safety Overcurrent Protection— The bq20z60-R1/bq20z65-R1 monitors the current during charging and
discharging. The overcurrent thresholds and time limits can be set independently for charging and
discharging.
Safety Overtemperature Protection— The bq20z60-R1/bq20z65-R1 monitors the pack temperature
during charging and discharging. The overtemperature thresholds and time limits can be set
independently for charging and discharging. Additionally, the two temperature sensors (TS1 and
TS2) have separate alarms, thresholds, and time limits.
23
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Open Thermistor— The bq20z60-R1/bq20z65-R1 monitors the thermistor temperature readings and can
detect open thermistors by their unusually low readings. Two separate safety flags are used one for
each thermistor.
Charge and Zero-Volt Charge FET Fault Protection— The bq20z60-R1/bq20z65-R1 monitors if there
is, at any time, an attempt to turn off the CHG FET or ZVCHG FET or if the CHG bit in the AFE
OUTPUT register is set and the current still continues to flow.
Discharge FET Fault Protection— The bq20z60-R1/bq20z65-R1 monitors if there is, at any time, an
attempt to turn off the DSG FET or if the DSG bit in the AFE OUTPUT register is set and the
current still continues to flow.
Fuse State Detection— The bq20z60-R1/bq20z65-R1 can detect if an attempt has been made to blow
the fuse, but the attempt has failed. The bq20z60-R1/bq20z65-R1 monitors if the Fuse Flag is set
to 0x3672 and current is still flowing.
Table 2-7. Time-Limit-Based 2nd Level Protection
PFAlert Flag, Permanent
Protection
Conditions
Monitored Value PF Threshold
PF Time Limit
PFStatus
Fail Cfg
Flag
Flag
Safety overvoltage
–
Voltage
Voltage
LT SOV Threshold, or
ST SOV Threshold, or
HT SOV Threshold
SOV Time
[SOV]
[XSOV]
Safety undervoltage
–
SUV Threshold
SUV Time
[SUV]
[XSUV]
Cell imbalance fault
(at rest)
Max difference
Any
CellVoltage4..1
Rest CIM Fail Voltage
Rest CIM Time
[CIM_R]
[XCIM_R]
•
•
Any
(CellVoltage4..1)
> Rest CIM
Check Voltage
|Current| ≤ Rest
CIM Current for
CIM Battery
Rest Time
Cell imbalance fault
(active)
Max difference
Any
CellVoltage4..1
Active CIM Fail
Voltage
Active CIM Time
[CIM_A]
[XCIM_A]
•
•
Any
(CellVoltage4..1)
> Active CIM
Check Voltage
|Current| ≥
Charge
Detection
Current
2nd level protection
IC input
–
PFIN pin
Current
Current
PFIN pin low
SOC Chg
SOC Dsg
PFIN Detect Time
SOC Chg Time
SOC Dsg Time
[PFIN]
[XPFIN]
Safety overcurrent
charge
Current > 0
Current < 0
Current > 0
[SOCC]
[SOCD]
[XSOCC]
[XSOCD]
Safety overcurrent
discharge
Safety
overtemperature chg
TS1Temperature SOT1 Chg Threshold
TS2Temperature SOT2 Chg Threshold
TS1Temperature SOT1 Dsg Threshold
TS2Temperature SOT2 Dsg Threshold
TS1Temperature Open Thermistor
TS2Temperature Open Thermistor
SOT1 Chg Time
SOT2 Chg Time
SOT1 Dsg Time
SOT2 Dsg Time
Open Time
[SOT1C]
[SOT2C]
[SOT1D]
[SOT2D]
[SOPT1]
[SOPT2]
[CFETF]
[XSOT1C]
[XSOT2C]
[XSOT1D]
[XSOT2D]
[XSOPT1]
[XSOPT2]
[XCFETF]
Safety
overtemperature dsg
Current < 0
Open thermistor 1
Open thermistor 2
–
–
Open Time
Charge and zero-volt (CHG FET or ZVCHG
Current
FET Fail Limit
FET Fail Time
charge FET fault
FET turn off attempt or
CHG Flag in AFE
OUTPUT register set)
and Current > 0
Discharge FET fault (DSG FET turn off
attempt or DSG Flag in
(–)Current
FET Fail Limit
Fuse Fail Limit
FET Fail Time
Fuse Fail Time
[DFETF]
[FBF]
[XDFETF]
[XFBF]
AFE OUTPUT register
set) and Current < 0
Fuse state
Fuse Flag = 0x3672
|Current|
24
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2nd Level Protection Features
Related Variables:
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
DF:2nd Level Safety:Voltage(16): LT SOV Threshold(0)
DF:2nd Level Safety:Voltage(16): ST SOV Threshold(2)
DF:2nd Level Safety:Voltage(16): HT SOV Threshold(4)
DF:2nd Level Safety:Voltage(16): SOV Time(6)
DF:2nd Level Safety:Voltage(16):SUV Threshold(7)
DF:2nd Level Safety:Voltage(16):SUV Time(9)
DF:2nd Level Safety:Voltage(16):Rest CIM Current(12)
DF:2nd Level Safety:Voltage(16):Rest CIM Fail Voltage(13)
DF:2nd Level Safety:Voltage(16):Rest CIM Time(15)
DF:2nd Level Safety:Voltage(16):CIM Battery Rest Time(16)
DF:2nd Level Safety:Voltage(16): Rest CIM Check Voltage(18)
DF:2nd Level Safety:Voltage(16): Active CIM Fail Voltage(20)
DF:2nd Level Safety:Voltage(16): Active CIM Time(22)
DF:2nd Level Safety:Voltage(16): Active CIM Check Voltage(23)
DF:2nd Level Safety:Voltage(16):PFIN Detect Time(25)
DF:2nd Level Safety:Current(17):SOC Chg(0)
DF:2nd Level Safety:Current(17):SOC Chg Time(2)
DF:2nd Level Safety:Current(17):SOC Dsg(3)
DF:2nd Level Safety:Current(17):SOC Dsg Time(5)
DF:2nd Level Safety:Temperature(18):SOT1 Chg Threshold(0)
DF:2nd Level Safety:Temperature(18):SOT1 Chg Time(2)
DF:2nd Level Safety:Temperature(18):SOT2 Chg Threshold(3)
DF:2nd Level Safety:Temperature(18):SOT2 Chg Time(5)
DF:2nd Level Safety:Temperature(18):SOT1 Dsg Threshold(6)
DF:2nd Level Safety:Temperature(18):SOT1 Dsg Time(8)
DF:2nd Level Safety:Temperature(18):SOT2 Dsg Threshold(9)
DF:2nd Level Safety:Temperature(18):SOT2 Dsg Time(11)
DF:2nd Level Safety:Temperature(18):Open Thermistor(12)
DF:2nd Level Safety:Temperature(18):Open Time(14)
DF:2nd Level Safety:FET Verification(19):FET Fail Limit(0)
DF:2nd Level Safety:FET Verification(19):FET Fail Time(2)
DF:2nd Level Safety:Fuse Verification(21):Fuse Fail Limit(0)
DF:2nd Level Safety:Fuse Verification(21):Fuse Fail Time(2)
DF:Configuration:Registers(64):Permanent Fail Cfg 1(6), Permanent Fail Cfg 2(8)
DF:PF Status:Device Status Data(96):Saved PF Flags 1(0), Saved PF Flags 2(2)
SBS:TS1Temperature(0x5e)
SBS:TS2Temperature(0x5f)
SBS:Voltage(0x09)
SBS:Current(0x0a)
SBS:CellVoltage4..1(0x3c..0x3f)
SBS:PFStatus(0x53)
2.3.3 Limit-Based Protection
The bq20z60-R1/bq20z65-R1 reports a 2nd level permanent failure and sets the appropriate PFStatus flag
if the internal error counter reaches the maximum error limit. The internal error counter is incremented by
one if the error happens and reset to zero (0) for every good communication cycle.
25
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AFE Communication Fault Protection— The gas gauge in the bq20z60-R1/bq20z65-R1 periodically
validates its read and write communications with the AFE. If either a read or write verify fails, an
internal AFE_Fail_Counter is incremented. If the AFE_Fail_Counter reaches AFE Fail Limit, the
bq20z60-R1/bq20z65-R1 reports an [AFE_C] permanent failure. The AFE_Fail_Counter is reset to
zero (0) for every good communication cycle. If the AFE Fail Limit is set to 0, this feature is
disabled. An [AFE_C] fault can also be declared if, after a full reset, the initial gain and offset values
read from the AFE cannot be verified. These values are A/D readings of the AFE VCELL output.
The AFE offset values are verified by reading the values twice and confirming that the readings are
within acceptable limits. The maximum difference between two readings is set with AFE Init Limit.
The maximum number of read retries, if offset and gain value verification fails and an [AFE_C] fault
is declared, is set in AFE Fail Limit.
Periodic AFE Verification— The gas gauge in the bq20z60-R1/bq20z65-R1 periodically
(AFE Check Time) compares certain RAM content of the AFE with that of the data flash and the
expected control-bit states. This function is disabled if AFE Check Time is set to 0. If an error is
detected, the internal AFE_Fail_Counter is incremented. If the internal AFE_Fail_Counter reaches
the AFE Fail Limit, the bq20z60-R1/bq20z65-R1 reports a permanent failure.
AFE Init Verification— After a full reset, the bq20z60-R1/bq20z65-R1 gas gauge and the AFE offset and
gain values are read twice and compared. The AFE Init Limit sets the maximum difference in A/D
counts of two successful readings of offset and gain, which the bq20z60-R1/bq20z65-R1 still
considers as the same value. If the gain and offset values are still not considered the same after
AFE Init Retry Limit comparison retries, the bq20z60-R1/bq20z65-R1 reports a permanent failure
error.
Data Flash Failure— The bq20z60-R1/bq20z65-R1 can detect if the data flash is not operating correctly.
A permanent failure is reported when either: (i) After a full reset the instruction flash checksum does
not verify; (ii) if any data flash write does not verify; or (iii) if any data flash erase does not verify.
Table 2-8. Error-Based 2nd Level Protection
Max Error Limit (Set to 0
to Disable Protection)
PFAlert Flag,
PFStatus Flag
Permanent Fail
Cfg Flag
Protection
Monitored Value
Fail Recovery
AFE
communication
fault
Periodic communication
with the AFE
AFE_Fail_Counter is reset to
zero (0) per each
AFE Fail Recovery Time period
AFE Fail Limit
AFE Fail Limit
[AFE_C]
[XAFE_C]
Periodic AFE
verification
Check RAM of the AFE with Decrement of internal
AFE Check Time period AFE_Fail_Counter by one per
[AFE_P]
[XAFE_P]
AFE Fail Recovery Time
period.
AFE initialization Initial gain and offset values
from the AFE after full reset
–
–
AFE Init Retry Limit
[AFE_C]
[XAFE_C]
[XDFF]
Data flash failure Data flash
False flash checksum after [DFF]
reset, data flash write not
verified, data flash erase
not verified
Related Variables:
•
•
•
•
•
•
•
•
•
•
DF:2nd Level Safety:FET Verification(19):FET Fail Limit(0)
DF:2nd Level Safety:FET Verification(19):FET Fail Time(2)
DF:2nd Level Safety:AFE Verification(20):AFE Check Time(0)
DF:2nd Level Safety:AFE Verification(20):AFE Fail Limit(1)
DF:2nd Level Safety:AFE Verification(20):AFE Fail Recovery Time(2)
DF:2nd Level Safety:AFE Verification(20):AFE Init Retry Limit(3)
DF:2nd Level Safety:AFE Verification(20):AFE Init Limit (4)
DF:Configuration:Registers(64):Permanent Fail Cfg(6)
DF:PF Status:Device Status Data(96):Saved PF Flags 1(0)
SBS:PFStatus(0x53)
26
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Gas Gauging
2.3.4 Clearing Permanent Failure
A bq20z60-R1/bq20z65-R1 permanent failure can be cleared by sending two ManufacturerAccess
commands in sequence: the first word of the PFKey followed by the second word of the PFKey. After
sending these two commands in sequence, PFStatus flags are cleared. Refer to Permanent Fail Clear
(PFKey) Manufacturer access for further details.
Related Variables:
•
•
SBS:ManufacturerAccess(0x00)
SBS:PFStatus(0x53)
2.4 Gas Gauging
The bq20z60-R1/bq20z65-R1 features Impedance Track™ (IT) gauging algorithm and is capable of
supporting a maximum battery pack capacity of 32Ah. The gas gauge measures individual cell voltages,
pack voltage, temperature, and current using features of the AFE. The bq20z60-R1/bq20z65-R1
determines battery state of charge by analyzing individual cell voltages when a time exceeding 35 minutes
has passed since the last charge or discharge activity of the battery. The bq20z60-R1/bq20z65-R1
measures charge and discharge activity by monitoring the voltage across a small-value series sense
resistor (10 mΩ typ.) between the cell stack negative terminal and the negative terminal of the battery
pack. The battery state of charge is subsequently adjusted during load or charger application using the
integrated charge passed through the battery.
2.4.1 Impedance Track Configuration
Load Mode— During normal operation, the battery-impedance profile compensation of the Impedance
Track algorithm can provide more-accurate full-charge and remaining state-of-charge information if
the typical load type is known. The two selectable options are constant current (Load Mode = 0)
and constant power (Load Mode = 1).
Load Select— In order to compensate for the I × R drop near the end of discharge, the
bq20z60-R1/bq20z65-R1 must be configured for whatever current (or power) will flow in the future.
While it cannot be exactly known, the bq20z60-R1/bq20z65-R1 can use load history such as the
average current of the present discharge to make a sufficiently accurate prediction. The
bq20z60-R1/bq20z65-R1 can be configured to use several methods of this prediction by setting the
Load Select value. Because this estimate has only a second-order effect on remaining capacity
accuracy, different measurement-based methods (0 to 3, and method 7) result in only minor
differences in accuracy. However, methods 4 to 6, where an estimate is arbitrarily assigned by the
user, can result in significant error if a fixed estimate is far from the actual load. For highly variable
loads, selection 7 will give the most conservative estimate and is preferable.
Constant Current (Load Mode = 0)
0 = Avg I Last Run
Constant Power (Load Mode = 1)
Avg P Last Run
1 = Present average discharge current
2 = Current
Present average discharge power
Current × Voltage
3 = AverageCurrent (default)
4 = Design Capacity / 5
5 = AtRate (mA)
AverageCurrent × average Voltage
Design Energy / 5
AtRate (10 mW)
6 = User Rate-mA
User Rate-mW
7= Max Avg I Last Run
Max Avg P Last Run
Pulsed Load Compensation and Termination Voltage— In order to take into account pulsed loads
while calculating remaining capacity until Term Voltage threshold is reached, the
bq20z60-R1/bq20z65-R1 monitors not only average load but also short load spikes. The maximum
voltage deviation during a load spike is continuously updated during discharge and stored in
Delta Voltage.
27
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Reserve Battery Capacity— The bq20z60-R1/bq20z65-R1 allows an amount of capacity to be reserved
in either mAh (Reserve Cap-mAh, Load Mode = 0) or 10 mWh (Reserve Cap-mWh, Load Mode
= 1) units between the point where the RemainingCapacity function reports zero capacity, and the
absolute minimum pack voltage, Term Voltage. This enables a system to report zero energy, but
still have enough reserve energy to perform a controlled shutdown, or to provide an extended sleep
period for the host system.
Also, if the [RESCAP] bit is set to 0, the reserve capacity is compensated at a no-load condition.
However, if [RESCAP] bit is set to 1, then the reserve capacity is compensated at the present
discharge rate as selected by Load Select.
Related Variables:
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
DF:SBS Configuration:Data(48):Design Capacity(22)
DF:SBS Configuration:Data(48):Design Energy(24)
DF:Configuration:Operation Cfg B(2)[RESCAP]
DF:Gas Gauging:IT Cfg(80):Load Select(0)
DF:Gas Gauging:IT Cfg(80):Load Mode(1)
DF:Gas Gauging:IT Cfg(80):Term Voltage(59)
DF:Gas Gauging:IT Cfg(80):User Rate-mA(76)
DF:Gas Gauging:IT Cfg(80):User Rate-mW(78)
DF:Gas Gauging:IT Cfg(80):Reserve Cap-mAh(80)
DF:Gas Gauging:IT Cfg(80):Reserve Cap-mWh(82)
DF:Gas Gauging:State(82):Avg I Last Run(21)
DF:Gas Gauging:State(82):Avg P Last Run(23)
DF:Gas Gauging:State(82):Delta Voltage(25)
DF:Gas Gauging:State(82):Max I Last Run(31)
DF:Gas Gauging:State(82):Max P Last Run(33)
SBS:BatteryMode(0x03)[CapM]
SBS:Voltage(0x09)
SBS:Current(0x0a)
SBS:AverageCurrent(0x0b)
SBS:OperationStatus(0x54)[LDMD]
2.4.2 Gas Gauge Modes
Resistance updates take place only in discharge mode, while OCV and Qmax updates only take place in
relaxation mode. Entry and exit of each mode is controlled by data flash parameters in the subclass Gas
Gauging: Current Thresholds section. In relaxation mode or discharge mode, the DSG flag in
BatteryStatus is set.
In order to prevent abnormally fast resistance change, resistance change is limited to old value +- Ra Max
Delta (mOhm). Recommended setting is 15% of 4 Ra grid point value, after optimized values of Ra are
obtained from optimization cycle.
28
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Gas Gauging
Figure 2-6. Gas Gauge Operating Modes
29
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Charge mode is exited and relaxation mode is entered when Current goes below Quit Current for a
period of Chg Relax Time. Discharge mode is entered when Current goes below
(–)Dsg Current Threshold. Discharge mode is exited and relaxation mode is entered when Current goes
above (–)Quit Current threshold for a period of Dsg Relax Time. Charge mode is entered when Current
goes above Chg Current Threshold.
[DSG]
1
0
1
1
0
1
1
Current
Relaxation Mode
Charge Mode
Relaxation Mode Discharge Mode
Charge Mode
Discharge Mode Relaxation Mode
Chg Relax Time
Quit Current
Time
(–)Quit Current
Dsg Relax Time
Figure 2-7. Gas Gauge Operating Mode Example
Related Variables:
•
•
•
•
•
•
•
•
DF:Gas Gauging:Current Thresholds(81):Dsg Current Threshold(0)
DF:Gas Gauging:Current Thresholds(81):Chg Current Threshold(2)
DF:Gas Gauging:Current Thresholds(81):Quit Current(4)
DF:Gas Gauging:Current Thresholds(81):Dsg Relax Time(6)
DF:Gas Gauging:Current Thresholds(81):Chg Relax Time(7)
SBS:Current(0x0a)
SBS:BatteryStatus(0x16)[DSG]
SBS:OperationStatus(0x54)[VOK],[R_DIS],[QEN]
2.4.3 Qmax
The total battery capacity is found by comparing states of charge before and after applying the load with
the amount of charge passed. When an applications load is applied, the impedance of each cell is
measured by comparing the open circuit voltage (OCV) obtained from a predefined function for present
state of charge with the measured voltage under load.
Measurements of OCV and charge integration determine chemical state of charge and Chemical Capacity
(Qmax).
30
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Gas Gauging
The bq20z60-R1/bq20z65-R1 acquires and updates the battery-impedance profile during normal battery
usage. It uses this profile, along with state-of-charge and the Qmax values, to determine
FullChargeCapacity and RelativeStateOfCharge specifically for the present load and temperature.
FullChargeCapacity reports a capacity or energy available from a fully charged battery reduced by
Reserve Cap-mAh or Reserve Cap-mWh under the present load and present temperature until Voltage
reaches the Term Voltage.
Related Variables:
•
•
•
•
DF:Gas Gauging:IT Config(80):Term Voltage(59)
SBS:Voltage(0x09)
SBS:RelativeStateOfCharge(0x0d)
SBS:FullChargeCapacity(0x10)
2.4.3.1 Qmax Initial Values
The initial Qmax Pack, Qmax Cell 0, Qmax Cell 1, Qmax Cell 2, and Qmax Cell 3 values should be
taken from the cell manufacturers' data sheet multiplied by the number of parallel cells, and are also used
for the DesignCapacity function value in the Design Capacity data flash value.
See the Theory and Implementation of Impedance Track Battery Fuel-Gauging Algorithm in bq20zxx
Product Family application report (SLUA364B) for further details.
Related Variables:
•
•
•
•
•
•
•
DF:SBS Configuration:Data(48):Design Capacity(22)
DF:Gas Gauging:State(82):Qmax Cell 0(0)
DF:Gas Gauging:State(82):Qmax Cell 1(2)
DF:Gas Gauging:State(82):Qmax Cell 2(4)
DF:Gas Gauging:State(82):Qmax Cell 3(6)
DF:Gas Gauging:State(82):Qmax Pack(8)
SBS:DesignCapacity(0x18)
2.4.3.2 Qmax Update Conditions
The bq20z60-R1/bq20z65-R1 updates the no-load full capacity (QMAX) when two open circuit voltage
(OCV) readings are taken. These OCV readings are affected by the setting of [CHGOCV_DIS] and taken
when the battery is in a relaxed state before and after charge or discharge activity. A relaxed state is
achieved if the battery voltage has a dV/dt of < 4 μV/s. Typically it takes 2 hours in a charged state and 5
hours in a discharged state to ensure that the dV/dt condition is satisfied. If 5 hours. is exceeded, a
reading is taken even if the dV/dt condition was not satisfied. A QMAX update is disqualified under the
following conditions:
Temperature— If Temperature is outside of the range 10°C to 40°C.
Delta Capacity— If the capacity change between suitable battery rest periods is less than 37%.
Voltage— If CellVoltage4..1 is in the range of 3737 mV to 3800 mV for the default LION chemistry. (See
the Support of Multiple Li-Ion Chemistries With Impedance Track Gas Gauges application note
(SLUA372) for the voltage ranges of other chemistries.)
Offset Error— If offset error accumulated during time passed from previous OCV reading exceeds 1% of
Design Capacity, update is disqualified. Offset error current is calculated as CC Deadband / sense
resistor value.
Related Variables:
•
•
•
•
•
DF:Calibration:Current(107):CC Deadband(2)
SBS:Temperature(0x08)
SBS:RelativeStateOfCharge(0x0d)
SBS:AbsoluteStateOfCharge(0x0e)
SBS:DesignCapacity(0x18)
31
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Charge Control
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•
•
•
•
•
SBS:CellVoltage4(0x3c)
SBS:CellVoltage3(0x3d)
SBS:CellVoltage2(0x3e)
SBS:CellVoltage1(0x3f)
SBS:OperationStatus(0x54)[VOK],[QEN]
Due to variations in charging voltages and taper current, chemical state of charge at the end of charge is
not always 100%. To account for the difference in state of charge achieved by different charges, the
gas-gauge learns actual depth of discharge after charge termination and relaxation for more than 30
minutes. These values are store in dataflash individually for each cell as follows:
•
•
•
•
Cell 0 Chg DOD at EOC = 0
Cell 1 Chg DOD at EOC = 0
Cell 2 Chg DOD at EOC = 0
Cell 3 Chg DOD at EOC = 0
Units of DOD are in an internal format. To convert it to %, the internal units should be divided by 163.84.
2.5 Charge Control
The bq20z60-R1/bq20z65-R1 can report to a smart charger the appropriate charging current needed for
constant-current charging and the charging voltage needed for constant-voltage charging per the charging
algorithm by using the ChargingCurrent and ChargingVoltage functions. The actual charging status of the
bq20z60-R1/bq20z65-R1 is indicated with flags and can be read out with the ChargingStatus function.
Related Variables:
•
•
•
SBS:ChargingCurrent(0x14)
SBS:ChargingVoltage(0x15)
SBS:ChargingStatus(0x55)
2.5.1 Charge Control SMBus Broadcasts
All broadcasts to a host or a smart charger are enabled by the [BCAST] bit. If the [HPE] bit is enabled,
master-mode broadcasts to the host address are PEC enabled. If the [CPE] bit is enabled, master-mode
broadcasts to the Smart-Charger address are PEC enabled. When broadcast is enabled, the following
broadcasts are sent:
•
ChargingVoltage and ChargingCurrent broadcasts are sent to the Smart-Charger device address
(0x12) every 10 to 60 seconds.
•
If any of the [OCA], [TCA], [OTA], [TDA], [RCA], [RTA] flags are set, the AlarmWarning broadcast is
sent to the host device address (0x14) every 10 seconds. Broadcasts stop when all flags above have
been cleared.
•
If any of the [OCA], [TCA], [OTA] or [TDA] flags are set, the AlarmWarning broadcast is sent to
Smart-Charger device address every 10 seconds. Broadcasts stop when all flags above have been
cleared.
Related Variables:
•
•
•
•
DF:Configuration:Registers(64):Operation Cfg B(2)[CPE],[HPE],[BCAST]
SBS:ChargingCurrent(0x14)
SBS:ChargingVoltage(0x15)
SBS:BatteryStatus(0x16)[OCA],[TCA],[OTA],[TDA],[RCA],[RTA]
2.5.2 Cell Balancing
The bq20z60-R1/bq20z65-R1 can determine the chemical state of charge of each cell using the
Impedance Track algorithm. The cell balancing algorithm used in the bq20z60-R1/bq20z65-R1 decreases
the differences in imbalanced cells in a fully charged state gradually, which prevents fully charged cells
from becoming overcharged causing excessive degradation. This increases overall pack energy by
preventing premature charge termination. More information can be found in the Cell Balancing Using the
bq20zxx application report (SLUA340B).
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The algorithm determines the amount of charge needed to fully charge each cell. There is a bypass FET
in parallel with each cell connected to the AFE. The FET is enabled for each cell with charge greater than
the lowest charged cell to reduce charge current through those cells. Each FET is enabled for a
precalculated time as calculated by the cell balancing algorithm. When any bypass FET is turned on, then
the [CB] charging status flag is set, otherwise the [CB] flag is cleared.
Cell balancing is active after a Qmax update has occurred with the FC bit set and OCV taken. This state
can be determined by the Update Status being set to 0x0E.
If Min Cell Deviation is set to 0, cell balancing is disabled and all bypass FETs stay OFF.
The bypass time needed for each cell is calculated as:
Min Cell Deviation = R / (duty_cycle × V_avg) × 3.6 s/mAh
Where:
R = internal bypass FET resistance of 500 Ω (typ.) + 2 series input filter resistors, Rχ. For example: if
input filter Rχ value is 100 Ω, R = 500 + 2 × Rχ = 700 Ω.
V_avg = 3.6 V
duty_cycle = 0.4 typ.
Related Variables:
•
•
DF:Charge Control:Cell Balancing Cfg(37):Min Cell Deviation(0)
SBS:ChargingStatus(0x55)[CB]
2.5.3 Charge-Inhibit Mode
If the bq20z60-R1/bq20z65-R1 is in discharge mode or relaxation mode ([DSG] = 1), the
bq20z60-R1/bq20z65-R1 goes into charge-inhibit mode and sets the ChargingCurrent and
ChargingVoltage values to 0 to inhibit charging if:
•
•
Temperature < JT1 limit OR
Temperature > JT3 limit
In charge-inhibit mode, the [XCHG] flag in ChargingStatus is set. If the [CHGIN] bit in Operation Cfg B is
set, the CHG FET and ZVCHG FET (if used) are also turned off when the bq20z60-R1/bq20z65-R1 is in
charge-inhibit mode.
The bq20z60-R1/bq20z65-R1 allows charging to resume when:
•
•
Temperature ≥ JT1 + Temp Hys AND
Temperature ≤ JT3 – Temp Hys
The FETs also return to their previous states at that time. The [XCHG] flag is cleared when the foregoing
conditions are met, when a charge fault condition is detected, or when the battery is removed if in
removable mode ([NR] = 0).
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Figure 2-8. Charge Inhibit
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Related Variables:
•
•
•
•
•
•
•
•
•
DF:Charge Control:Charge Temp Cfg(32):JT1(0)
DF:Charge Control:Charge Temp Cfg(32):JT3(6)
DF:Charge Control:Charge Temp Cfg(32):Temp Hys(10)
DF:Configuration:Registers(64):Operation Cfg B(2)[CHGIN],[NR]
SBS:Temperature(0x08)
SBS:ChargingCurrent(0x14)
SBS:ChargingVoltage(0x15)
SBS:BatteryStatus(0x16)[DSG]
SBS:ChargingStatus(0x55)[XCHG]
2.5.4 Charge-Suspend Mode
The bq20z60-R1/bq20z65-R1 suspends charging when:
•
•
Temperature < JT1, OR
Temperature > JT4
In charge-suspend mode, the [CHGSUSP] flag in ChargingStatus is set and ChargingCurrent is set to 0.
The CHG FET and ZVCHG FET (if used) are also turned off if the [CHGSUSP] bit in the Operation Cfg B
register is set.
The bq20z60-R1/bq20z65-R1 resumes charging if:
•
•
Temperature ≥ JT1 + Temp Hys, AND
Temperature ≤ JT3 – Temp Hys.
On resuming, the bq20z60-R1/bq20z65-R1 clears the [CHGSUSP] status flag and sets ChargingCurrent
according to the appropriate charging mode entered, and the CHG and ZVCHG FETs (if used) return to
their previous state.
The bq20z60-R1/bq20z65-R1 also leaves the charge-suspend mode and clears the [CHGSUSP] flag
when a protection condition is detected or when the battery is removed in removable battery mode ([NR] =
0).
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Figure 2-9. Charge Suspend
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Related Variables:
•
•
•
•
•
•
•
•
•
•
•
DF:Charge Control:Charge Temp Cfg(32):JT1(0)
DF:Charge Control:Charge Temp Cfg(32):JT3(6)
DF:Charge Control:Charge Temp Cfg(32):JT4(8)
DF:Charge Control:Charge Temp Cfg(32):Temp Hys(10)
DF:Configuration:Registers(64):Operation Cfg B(2)[CHGSUSP],[NR]
DF:Gas Gauging:Current Thresholds(81):Chg Current Threshold(2)
SBS:Temperature(0x08)
SBS:AverageCurrent(0x0b)
SBS:ChargingCurrent(0x14)
SBS:BatteryStatus(0x16)[DSG]
SBS:ChargingStatus(0x55)[CHGSUSP]
2.5.5 Charging and Temperature Ranges
The bq20z60-R1/bq20z65-R1 requests different charging current and charging voltage for each of the
temperature ranges defined in Section 2.1, through the ChargingVoltage and ChargingCurrent commands.
Additionally, the charging current can be set differently depending on the cell voltage. Three ranges of cell
voltage are defined using two cell voltage thresholds: Cell Voltage Threshold 1 and Cell Voltage
Threshold 2 (see Table 2-9). During charging, as cell voltage increases, ChargingCurrent is set to the
appropriate value when cell voltage crosses one of the cell voltage thresholds. However, if cell voltage
decreases below the threshold, ChargingCurrent is not set back to the previous value unless a discharge
or relax state is detected. This is done to avoid the situation where the charging current is being changed
back and forth due to the voltage drop that results from changing the charging current value.
Table 2-9. Cell Voltage Ranges
Condition
Cell Voltage Range
max(CellVoltage4..1) < Cell Voltage Threshold 1
Cell Voltage Threshold 1 < max(CellVoltage4..1) < Cell Voltage Threshold 2
Cell Voltage Threshold 2 < max(CellVoltage4..1)
CVR1
CVR2
CVR3
The dependency of the Charging Voltage and Charging Current on temperature range and cell voltage
range is summarized in Table 2-10 and illustrated in Figure 2-10 and Figure 2-11.
Table 2-10. Charging Voltage and Charging Current Dependency on Temperature Range and Cell
Voltage Range
Temp Range
Cell Voltage
–
Charging Voltage
Charging Current
TR1
0
0
CVR1
CVR2
CVR3
CVR1
CVR2
CVR3
CVR1
CVR2
CVR3
CVR1
CVR2
CVR3
–
LT Chg Current1
LT Chg Current2
LT Chg Current3
ST1 Chg Current1
ST1 Chg Current2
ST1 Chg Current3
ST2 Chg Current1
ST2 Chg Current2
ST2 Chg Current3
HT Chg Current1
HT Chg Current2
HT Chg Current3
0
TR2
LT Chg Voltage
ST1 Chg Voltage
ST2 Chg Voltage
TR2A
TR3
TR4
TR5
HT Chg Voltage
0
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ST 2 Chg Voltage
ST 1 Chg Voltage
HT Chg Voltage
LT Chg Voltage
T1
T2
T2a
T3
T4
Lo Temp Chg
TR 2
Std Temp Chg 1
TR 2A
Std Temp Chg2
TR 3
Hi Temp Chg
TR 4
Chg Suspend
Chg Suspend
TR5
TR 1
Chg Inhibit
Chg Inhibit
Figure 2-10. Temp Ranges and Charge Voltage for JEITA With Enhancements for More Complex
Charging Profiles
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Cell Voltage
COV Threshold
LT Chg Current 3
LT Chg Current 2
ST1 Chg Current 3
ST1 Chg Current 2
ST2 Chg Current 3
ST2 Chg Current 2
HT Chg Current 3
HT Chg Current 2
CVR3
CVR2
Cell Voltage
Threshold 2
Cell Voltage
Threshold 1
LT Chg Current 1
ST1 Chg Current 1
ST2 Chg Current 1
HT Chg Current 1
CVR1
Pre-chg Voltage
Threshold
T1
T2
T2a
T3
T4
Lo Temp Chg
TR 2
Std Temp Chg1
TR 2A
Std Temp Chg2
TR 3
Hi Temp Chg
TR 4
Chg Suspend
TR 1
Chg Suspend
TR 5
Chg Inhibit
Chg Inhibit
Figure 2-11. Temp Ranges and Charge Current for JEITA With Enhancements for More Complex
Charging Profiles
2.5.5.1 Low Temperature Charging
The bq20z60-R1/bq20z65-R1 enters this mode when the Temperature function reports a temperature in
the TR2 range (JT1 < Temperature < JT2). In this mode [LTCHG] flag in ChargingStatus is set, the
ChargingVoltage is set to LT Chg Voltage, and the ChargingCurrent is set to LT Chg Current1, LT Chg
Current2, or LT Chg Current3 depending on the active cell voltage range. The charging current dataflash
values for low temp charging should be set to low current values similar to precharge mode. The
bq20z60-R1/bq20z65-R1 leaves this mode and clears the [LTCHG] flag if the Temperature goes below
JT1 or above JT2 + Temp Hys.
2.5.5.2 Standard Temperature Charging 1
The bq20z60-R1/bq20z65-R1 enters this mode when the Temperature function reports a temperature in
the TR2A range (JT2 < Temperature < JT2a). In this mode the [ST1CHG] flag in ChargingStatus is set,
ChargingVoltage is set to ST1 Chg Voltage, and the ChargingCurrent is set to ST1 Chg Current, ST1
Chg Current 2, or ST1 Chg Current 3 depending on the active cell voltage range. The
bq20z60-R1/bq20z65-R1 leaves this mode and clears the [ST1CHG] flag if the Temperature goes below
JT2 or above JT2a.
2.5.5.3 Standard Temperature Charging 2
The bq20z60-R1/bq20z65-R1 enters this mode when the Temperature function reports a temperature in
39
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the TR3 range (JT2a < Temperature < JT3). In this mode the [ST2CHG] flag in ChargingStatus is set,
ChargingVoltage is set to ST2 Chg Voltage, and the ChargingCurrent is set to ST2 Chg Current 1 or
ST2 Chg Current 2 or ST2 Chg Current 3 depending on the active cell voltage. The
bq20z60-R1/bq20z65-R1 leaves this mode and clears the [ST2CHG] flag if the Temperature goes below
JT2a – Temp Hys or above JT3 .
2.5.5.4 High Temperature Charging
The bq20z60-R1/bq20z65-R1 enters this mode when the Temperature function reports a temperature in
the TR4 range (JT3 < Temperature < JT4). In this mode the [HTCHG] flag in ChargingStatus is set,
ChargingVoltage is set to HT Chg Voltage, and the ChargingCurrent is set to HT Chg Current1, HT Chg
Current2, or HT Chg Current3 depending on the active cell voltage. The bq20z60-R1/bq20z65-R1 leaves
this mode and clears the [HTCHG] flag if the Temperature goes below JT3 – Temp Hys or above JT4.
Related Variables:
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
DF:Charge Control:Charge Temp Cfg(32):JT1(0)
DF:Charge Control:Charge Temp Cfg(32):JT2(2)
DF:Charge Control:Charge Temp Cfg(32):JT2a(4)
DF:Charge Control:Charge Temp Cfg(32):JT3(6)
DF:Charge Control:Charge Temp Cfg(32):JT4(8)
DF:Charge Control:Charge Temp Cfg(32):Temp Hys(10)
DF:Charge Control:Charge Cfg(34):LT Charge Voltage(0)
DF:Charge Control:Charge Cfg(34):LT Charge Current 1(2)
DF:Charge Control:Charge Cfg(34):LT Charge Current 2(4)
DF:Charge Control:Charge Cfg(34):LT Charge Current 3(6)
DF:Charge Control:Charge Cfg(34):ST1 Charge Voltage(8)
DF:Charge Control:Charge Cfg(34):ST1 Charge Current 1(10)
DF:Charge Control:Charge Cfg(34):ST1 Charge Current 2(12)
DF:Charge Control:Charge Cfg(34):ST1 Charge Current 3(14)
DF:Charge Control:Charge Cfg(34):ST2 Charge Voltage(16)
DF:Charge Control:Charge Cfg(34):ST2 Charge Current 1(18)
DF:Charge Control:Charge Cfg(34):ST2 Charge Current 2(20)
DF:Charge Control:Charge Cfg(34):ST2 Charge Current 3(22)
DF:Charge Control:Charge Cfg(34):HT Charge Voltage(24)
DF:Charge Control:Charge Cfg(34):HT Charge Current 1(26)
DF:Charge Control:Charge Cfg(34):HT Charge Current 2(28)
DF:Charge Control:Charge Cfg(34):HT Charge Current 3(30)
DF:Charge Control:Charge Cfg(34):Cell Voltage Threshold 1(32)
DF:Charge Control:Charge Cfg(34):Cell Voltage Threshold 2(34)
SBS:Temperature(0x08)
SBS:ChargingCurrent(0x14)
SBS:ChargingVoltage(0x15)
SBS:ChargingStatus(0x55)[LTCHG] , [ST1CHG] , [ST2CHG], [HTCHG]
2.5.6 Precharge
The bq20z60-R1/bq20z65-R1 enters precharge mode during charging if any cell voltage goes below
Pre-chg Voltage Threshold limit or if any of the SafetyStatus flags, [CUV], [OCD], or [OCD2] is set.
Depending on the setting of the [ZVCHG1] and [ZVCHG0] bits in Operation Cfg A, different FETs can be
used in pre-charge mode.
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Table 2-11. Precharge FET
ZVCHG1
ZVCHG0
FET USED
ZVCHG FET
CHG FET
0
0
1
0
1
0
GPOD Pin (on the
AFE when used with
bq20z60)
1
1
No Action
In precharge mode, the [PCHG] flag is set, the ChargingVoltage is set to Pre-chg Current, and
ChargingVoltage is set per the charging algorithm.
The bq20z60-R1/bq20z65-R1 leaves precharge mode and clears the [PCHG] flag if all cell voltages reach
or rise above Pre-chg Recovery Voltage. Precharge mode is also exited if charge suspend mode is
entered, any fault condition is detected, or the pack is removed in removable mode.
Related Variables:
•
•
•
•
•
•
•
•
•
DF:Charge Control:Pre-Charge Cfg(33):Pre-chg Voltage Threshold(0)
DF:Charge Control:Pre-Charge Cfg(33):Pre-chg Recovery Voltage(0)
DF:Charge Control:Pre-Charge Cfg(33):Pre-chg Current(4)
DF:Configuration:Registers(64):Operation Cfg A(0)[ZVCHG1],[ZVCHG0]
SBS:ChargingCurrent(0x14)
SBS:ChargingVoltage(0x15)
SBS:CellVoltage4..1(0x3c..0x3f)
SBS:SafetyStatus(0x51)[CUV],[OCD],[OCD2]
SBS:ChargingStatus(0x55)[PCHG]
2.5.7 Primary Charge Termination
The bq20z60-R1/bq20z65-R1 determines charge termination if:
•
•
•
Average Charge Current < Taper Current during two consecutive Current Taper Window time
periods, AND
The accumulated change in capacity must be > 0.25 mAh per period during two consecutive
Current Taper Window time periods, AND
Taper voltage condition is met. Taper voltage condition is either cell voltage-based or pack
voltage-based depending on the bit [CELL_TAPER] in Operation Cfg C.
–
–
[CELL_TAPER] =1: Max (CellVoltage4..1) + Taper Voltage ≥ ChargingVoltage / number of cells
[CELL_TAPER] =0: Voltage + Taper Voltage ≥ ChargingVoltage
NOTE: To ensure proper charge termination, it is recommend that Taper Current be set to a value
greater than Quit Current.
The following parameters change the behavior of bq20z60-R1/bq20z65-R1 on charge termination:
Table 2-12. Primary Charge Termination
Parameter
Behavior on Primary Charge Termination
[TCA] flag set, [MCHG] flag set, ChargingCurrent = Maintenance Current
[FC] flag set
[TCA Set %] = –1
[FC Set %] = –1
[CHGFET] set
[CSYNC] set
CHG FET turned off
RemainingCapacity = FullChargeCapacity regardless of TCA Set % value
[RSOCL] set
If the [RSOCL] bit in Operation Cfg C is set then RelativeStateofCharge and RemainingCapacity are held at 99% until primary
charge termination occurs. Only on entering primary charge termination is 100% displayed.
[RSOCL] clear
If the [RSOCL] bit in Operation Cfg C is cleared then RelativeStateofCharge and RemainingCapacity are not held at 99% until
primary charge termination occurs. Fractions of % greater than 99% are rounded up to display 100%.
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Related Variables:
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
DF:Charge Control:Termination Cfg.(36):Maintenance Current(0)
DF:Charge Control:Termination Cfg.(36):Taper Current(2)
DF:Charge Control:Termination Cfg.(36):Taper Voltage(6)
DF:Charge Control:Termination Cfg.(36):Current Taper Window(8)
DF:Charge Control:Termination Cfg.(36):TCA Set %(9)
DF:Charge Control:Termination Cfg.(36):FC Set %(11)
DF:Configuration:Registers(64):Operation Cfg B(2)[CHGFET],[CSYNC]
DF:Configuration:Registers(64):Operation Cfg C(4)[RSOCL]
DF:Gas Gauging:Current Thresholds(81):Quit Current(4)
SBS:Voltage(0x09)
SBS:Current(0x0a)
SBS:RemainingCapacity(0x0f)
SBS:FullChargeCapacity(0x10)
SBS:ChargingCurrent(0x14)
SBS:BatteryStatus(0x16)[TCA],[FC]
SBS:CellVoltage4..1(0x3c..0x3f)
SBS:ChargingStatus(0x55)[MCHG]
2.5.8 Charging Faults
The bq20z60-R1/bq20z65-R1 can report charging faults in the ChargingStatus register. When the
[OCHGI] bit in Charge Fault Cfg is set, the CHG FET is turned OFF and the ZVCHG FET is turned ON if
the [ZVCHG1], [ZVCHG0] bits in Operation Cfg A are set appropriately. If the ZVCHG FET is not used
the CHG FET remains ON, regardless of the bits set in Charge Fault Cfg, because it acts as the ZVCHG
FET.
On occurrence of a charging fault, the bq20z60-R1/bq20z65-R1:
•
•
Sets the appropriate ChargingStatus flag
Turns off the CHG FET, and turns on the ZVCHG FET (if used) if the flag in Charge Fault Cfg and
ChargingStatus matches. The DSG FET is also turned off if charging fault is a Battery Depleted fault.
•
Sets the ChargingCurrent = 0, ChargingVoltage = 0; (ChargingVoltage is not set to zero if it is a
Battery Depleted fault).
•
•
Sets the [TCA] flag in BatteryStatus
Sets the [OCA] flag in BatteryStatus if it is an Overcharge fault
On recovery, the bq20z60-R1/bq20z65-R1:
•
•
Resets the appropriate ChargingStatus flags
Sets the CHG FET and ZVCHG FET (if used) to previous states. (DSG FET is also allowed to turn on
again on recovery from Battery Depleted fault).
•
•
Sets ChargingCurrent and ChargingVoltage back to previous state according to charging algorithm.
Resets [TCA] (and [OCA] if it was set) flag in BatteryStatus
Precharge Mode Timeout
When Current ≥ Chg Current Threshold, the bq20z60-R1/bq20z65-R1 starts the Precharge Timer. The
Precharge Timer is suspended when precharge mode is not active ([PCHG] = 0). Set Precharge Timeout
[PCMTO] to zero to disable this feature.
The bq20z60-R1/bq20z65-R1 goes into precharge mode charging timeout [PCMTO] if:
•
Precharge timer ≥ Precharge Timeout
The bq20z60-R1/bq20z65-R1 recovers if:
•
•
Current ≤ (–)Dsg Current Threshold, OR
Pack is removed and reinserted, if [NR] = 0
Charge Mode Timeout
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When Current is ≥ Chg Current Threshold, the bq20z60-R1/bq20z65-R1 starts the Charge Timer. The
Charge Timer is suspended when charge is not active ([LTCHG] = 0, [ST1CHG] = 0, [ST2CHG] = 0, and
[HTCHG] = 0 , or when [DSG] = 1. The Charge Timer is reset when an amount of discharge greater than
Over Charge Recovery is detected or if the pack is removed and reinserted when [NR] = 0. Set Charge
Timeout to 0 to disable this feature.
The bq20z60-R1/bq20z65-R1 goes into charge mode charging timeout if:
•
Charge timer ≥ Charge Timeout
The bq20z60-R1/bq20z65-R1 recovers if:
•
•
Current ≤ (–)Dsg Current Threshold OR
Pack is removed and reinserted if [NR] = 0
Overcharging Voltage
The bq20z60-R1/bq20z65-R1 goes into overcharging voltage mode if:
•
Voltage ≥ ST2 Chg Voltage + Over Charging Voltage for minimum Over Charging Volt Time period.
The bq20z60-R1/bq20z65-R1 recovers, if:
Voltage ≤ ST2 Chg Voltage
•
Overcharging Current
The bq20z60-R1/bq20z65-R1 goes into overcharging current mode if:
•
Current ≥ ChargingCurrent + Over Charging Current for minimum Over Charging Curr Time period.
The bq20z60-R1/bq20z65-R1 recovers, if:
AverageCurrent ≤ Over Charging Curr Recov
•
Overcharge
The bq20z60-R1/bq20z65-R1 goes into overcharge mode if the battery pack is charged in excess of
FullChargeCapacity by Over Charge Capacity:
The bq20z60-R1/bq20z65-R1 recovers if any of the following conditions are met:
•
•
Pack removed and reinserted ([NR] = 0)
Continuous amount of discharge over Over Charge Recovery and AverageCurrent
when [NR] = 1
< 0,
•
RemainingCapacity ≤ FC Clear %
Battery Depleted
The bq20z60-R1/bq20z65-R1 goes into battery depleted mode if:
•
Voltage ≤ Depleted Voltage for Depleted Voltage Time and charger is present
The bq20z60-R1/bq20z65-R1 recovers, if:
Voltage > Depleted Voltage Recovery
•
Table 2-13. Charging Faults
ChargingStatus Flag,
Charge Fault
Charge Fault
Fault Condition
Recovery Condition
Configuration Flag
Precharge
Timeout
Precharge Timer ≥ Precharge Timeout
Current ≤ (–)Dsg Current Threshold, OR [PCMTO]
pack removed and reinserted if [NR] = 0
Charge Timeout Charge Timer ≥ Charge Timeout
[CMTO]
Overcharging
Voltage
Voltage ≥ ST2 Chg Voltage +
Over Charging Voltage for minimum
Over Charging Volt Time
Voltage ≤ ST2 Chg Voltage
[OCHGV]
Overcharging
Current
Current ≥ ChargingCurrent +
Over Charging Current for minimum Over Recov
AverageCurrent ≤ Over Charging Curr
[OCHGI]
Charging Curr Time
43
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Table 2-13. Charging Faults (continued)
ChargingStatus Flag,
Charge Fault
Configuration Flag
Charge Fault
Overcharge
Fault Condition
Recovery Condition
RemainingCapacity – FullChargeCapacity ≥ Pack removed and reinserted if [NR] = 0, [OC]
Over Charge Capacity
OR continuous amount of discharge of
Over Charge Recovery if [NR] = 1, OR
RemainingCapacity ≤ FC Clear %
Battery Depleted Voltage ≤ Depleted Voltage for minimum
Voltage > Depleted Voltage Recovery
[XCHGLV]
Depleted Voltage Time
Related Variables:
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
DF:Charge Control:Charge Cfg(34):ST2 Chg Voltage(16)
DF:Charge Control:Termination Cfg.(36):FC Clear %(12)
DF:Charge Control:Charging Faults(38):Over Charging Voltage(0)
DF:Charge Control:Charging Faults(38):Over Charging Volt Time(2)
DF:Charge Control:Charging Faults(38):Over Charging Current(3)
DF:Charge Control:Charging Faults(38):Over Charging Curr Time(5)
DF:Charge Control:Charging Faults(38):Over Charging Curr Recov(6)
DF:Charge Control:Charging Faults(38):Depleted Voltage(8)
DF:Charge Control:Charging Faults(38):Depleted Voltage Time(10)
DF:Charge Control:Charging Faults(38):Depleted Recovery(11)
DF:Charge Control:Charging Faults(38):Over Charge Capacity(13)
DF:Charge Control:Charging Faults(38):Over Charge Recovery(15)
DF:Charge Control:Charging Faults(38):Charge Timeout(17)
DF:Charge Control:Charging Faults(38):Precharge Timeout(19)
DF:Charge Control:Charging Faults(38):Charge Fault Cfg(21)
DF:Configuration:Registers(64):Operation Cfg B(2)[NR]
SBS:Voltage(0x09)
SBS:Current(0x0a)
SBS:AverageCurrent(0x0b)
SBS:ChargingCurrent(0x14)
SBS:BatteryStatus(0x16)[TDA],[TCA],[OCA]
SBS:ChargingStatus(0x55)[LTCHG],[STCHG],[HTCHG]
44
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Discharge-Inhibit Mode
2.5.9 Discharge and Charge Alarms
The bq20z60-R1/bq20z65-R1 enables [TDA], [FD], [TCA] and [FC] flags in BatteryStatus to be set or
cleared on the following thresholds based on RelativeStateOfCharge. All thresholds can be disabled by
setting them to –1. FC Clear % should not be disabled by setting to –1.
Threshold
≤TDA Set % and discharging
≥TDA Clear %
≤FD Set %
BatteryStatus Flag
[TDA] is set.
[TDA] is cleared.
[FD] is set.
≥FD Clear %
[FD] is cleared.
[TCA] is set.
RelativeStateOfCharge
≥TCA Set %
≤TCA Clear %
≥FC Set %
[TCA] is cleared.
[FC] is set.
≤FC Clear %
[FC] is cleared.
The [TDA] and [FD] flags in BatteryStatus can also be set or cleared based on Voltage. If the voltage
settings are not used, then they should be set to extreme range values.
Threshold
BatteryStatus Flag
[TDA] is set.
≤TDA Volt Threshold for a period of TDA Volt Time and
discharging
≥TDA Clear Volt
≤FD Volt Threshold for a period of FD Volt Time
≥FD Clear Volt
[TDA] is cleared.
[FD] is set.
Voltage
[FD] is cleared.
Related Variables:
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
DF:Charge Control:Termination Cfg.(36):TCA Set %(9)
DF:Charge Control:Termination Cfg.(36):TCA Clear %(10)
DF:Charge Control:Termination Cfg.(36):FC Set %(11)
DF:Charge Control:Termination Cfg.(36):FC Clear %(12)
DF:SBS Configuration:Configuration(49):TDA Set %(0)
DF:SBS Configuration:Configuration(49):TDA Clear %(1)
DF:SBS Configuration:Configuration(49):FD Set %(2)
DF:SBS Configuration:Configuration(49):FD Clear %(3)
DF:SBS Configuration:Configuration(49):TDA Set Volt Threshold(4)
DF:SBS Configuration:Configuration(49):TDA Set Volt Time(6)
DF:SBS Configuration:Configuration(49):TDA Clear Volt(7)
DF:SBS Configuration:Configuration(49):FD Set Volt Threshold(9)
DF:SBS Configuration:Configuration(49):FD Volt Time(11)
DF:SBS Configuration:Configuration(49):FD Clear Volt(12)
SBS:Voltage(0x09)
SBS:RelativeStateOfCharge(0x0d)
2.6 Discharge-Inhibit Mode
The bq20z60-R1/bq20z65-R1 prevents discharging if Temperature > Hi Dsg Start Temp. When this
happens, the bq20z60-R1/bq20z65-R1 goes into discharge inhibit mode. In discharge inhibit mode,
discharging is disabled, and [XDSG], [DSGIN] in OperationStatus and [TDA] in BatteryStatus are set. The
bq20z60-R1/bq20z65-R1 returns to normal mode and allows discharging if Temperature becomes less
than or equal Hi Dsg Start Temp.
Related Variables:
•
•
DF:1st Level Safety:Temperature(2):Hi Dsg Start Temp(20)
SBS:Temperature(0x08)
45
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LED Display
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•
•
SBS:BatteryStatus(0x16)[TDA]
SBS:OperationStatus(0x54)[XDSG],[DCHGIN]
2.7 LED Display
2.7.1 Display Activation
Figure 2-12. Display Activation
46
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LED Display
The LED display is activated with a High to Low (H-L) transition at the DISP pin. The following flags
configure additional display activation settings. If [CUV] or [PUV] flags are set, the display is disabled.
LEDR — Set this flag to activate the display on exit from reset.
LEDRCA— Set this flag to let all active LEDs flash with LED Flash Period if [RCA] flag is set.
CHGLED— Set this flag to let the display stay activated during charging.
PFD1, PFD0— If [PFD0] is set, the permanent failure can be activated in two different ways depending on
the [PFD1] flag. If [PFD1] is cleared, the permanent failure display is active after normal capacity
display, if DISP is held low after H-L transition for LED Hold Time period. If [PFD1] is set, the
permanent failure display is activated with a H-L transition at DISP pin. The permanent failure
display stays active 2 × LED Hold Time for each flag set in PFStatus register. See "Permanent
Failure Error Codes" chapter for available error codes.
LEDs ON, LEDs OFF, Display ON— The display can be tested with these ManufacturerAccess
commands, LEDs ON and LEDs OFF switches all configured LEDs on or off. The Display ON
command simulates a H-L transition at the DISP pin.
Related Variables:
•
•
•
•
•
•
•
•
•
DF:Configuration:Registers(64):Operation Cfg A(0)[LEDR],[LEDRCA],[CHGLED]
DF:Configuration:Registers(64):Operation Cfg B(2)[PFD1],[PFD0]
DF:LED Support:LED Cfg(67):LED Hold Time(6)
SBS:ManufacturerAccess(0x00):LEDs ON(0x0032)
SBS:ManufacturerAccess(0x00):LEDs OFF(0x0033)
SBS:ManufacturerAccess(0x00):Display ON(0x0034)
SBS:BatteryStatus(0x16)[RCA]
SBS:SafetyStatus(0x51)[CUV],[PUV]
SBS:PFStatus(0x53)
2.7.2 Display Configuration
The following parameters configures the display in various ways.
DMODE— The charge level display can be configured to show either relative state of charge or absolute
state of charge.
LED1, LED0 — These bits configure the number of LEDs and the charge threshold levels used in the
LED display. The bq20z90/bq20z95 can use predefined charge levels for 3,4, or 5 LEDs or user
defined levels.
SLED — The serial LED option can be used to implement a much brighter display at the expense of
additional hardware components. With the parallel connection, the 3.3 V output from the bq29330 is
used to power the LEDs. Using that approach, current in each LED should be limited to 3 mA
maximum. With the serial option, all LEDs can be powered from the battery voltage and driven in
series through a simple constant current regulator. The current is then diverted to ground at the
various nodes between the series LEDs in order to program the desired pattern.
LED Blink Period— During charging, the top LED segment flashes with the LED Blink Period; e.g. if
battery charge is 36% and the display uses 5 LEDs, LED 2 will blink. [LEDRCA],
CHG Flash Alarm and DSG Flash Alarm will override this setting if active.
LED Flash Period— During discharge alarm, the remaining LED segments flash with LED Flash Period;
e.g. if battery charge is 36% and the display uses 5 LEDs, LED 1 and LED 2 will blink.
LED Delay— An activation delay from one LED to another LED can be set with this value.
LED Hold Time— After display activation the display will stay on LED Hold Time period. The permanent
failure display will stay on double the LED Hold Time period for each permanent failure bit set.
Related Variables:
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LED Display
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•
•
•
•
•
•
•
DF:Configuration:Registers(64):Operation Cfg A(0)[DMODE],[LED1],[LED0],[SLED],[LEDRCA]
DF:LED Support:LED Cfg(67):LED Flash Period(0)
DF:LED Support:LED Cfg(67):LED Blink Period(2)
DF:LED Support:LED Cfg(67):LED Delay(4)
DF:LED Support:LED Cfg(67):LED Hold Time(6)
SBS:RelativeStateOfCharge(0x0d)
SBS:AbsoluteStateOfCharge(0x0e)
2.7.3 Display Format
The bq20z60-R1/bq20z65-R1 can show state of charge using the LED display. Predefined levels for 3, 4
or 5 LEDs or user configurable levels can be selected. State of charge levels can be configured for
charging and discharging.
If the display is activated during charging the display shows the state of charge and the top LED segment
flashes at the rate of LED Blink Period (eg: if RelativeStateOfCharge = 36% and 5 LEDs are being used
then LED2 will blink). The blinking is overriden with CHG Flash Alarm or [LEDRCA]
If state of charge falls below the flash alarm level, all remaining active LEDs will flash at the
LED Flash Period. The flash alarm can be disabled by setting it to -1.
48
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LED Display
Table 2-14. Display Charge Level Threshold
LED1, LED0 Setting: 3 LED
4 LED
5 LED
USER
Threshold Level:
Flash Alarm active
LED 1 active
charge + discharge level
charging level
discharging level
0% - 10%
0% - 10%
0% - 10%
0% - CHG Flash Alarm
CHG Thresh 1 - 100%
0% - DSG Flash Alarm
DSG Thresh 1 - 100%
DSG Thresh 2 - 100%
DSG Thresh 3 - 100%
DSG Thresh 4 - 100%
DSG Thresh 5 - 100%
0% - 100%
0% - 100%
0% - 100%
LED 2 active
34% - 100% 25% - 100% 20% - 100% CHG Thresh 2 - 100%
67% - 100% 50% - 100% 40% - 100% CHG Thresh 3 - 100%
LED 3 active
LED 4 active
-
-
75% - 100% 60% - 100% CHG Thresh 4 - 100%
- 80% - 100% CHG Thresh 5 - 100%
LED 5 active
Related Variables:
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
DF:Configuration:Registers(64):Operation Cfg A(0)[DMODE],[LED1],[LED0],[LEDRCA]
DF:LED Support:LED Cfg(67):LED Flash Period(0)
DF:LED Support:LED Cfg(67):LED Blink Period(2)
DF:LED Support:LED Cfg(67):CHG Flash Alarm(7)
DF:LED Support:LED Cfg(67):CHG Thresh 1(8)
DF:LED Support:LED Cfg(67):CHG Thresh 2(9)
DF:LED Support:LED Cfg(67):CHG Thresh 3(10)
DF:LED Support:LED Cfg(67):CHG Thresh 4(11)
DF:LED Support:LED Cfg(67):CHG Thresh 5(12)
DF:LED Support:LED Cfg(67):DSG Flash Alarm(13)
DF:LED Support:LED Cfg(67):DSG Thresh 1(14)
DF:LED Support:LED Cfg(67):DSG Thresh 2(15)
DF:LED Support:LED Cfg(67):DSG Thresh 3(16)
DF:LED Support:LED Cfg(67):DSG Thresh 4(17)
DF:LED Support:LED Cfg(67):DSG Thresh 5(18)
SBS:RelativeStateOfCharge(0x0d)
SBS:AbsoluteStateOfCharge(0x0e)
SBS:BatteryStatus(0x16)[DSG]
2.7.4 Permanent Failure Error Codes
When a permanent failure occurs, the type of permanent failure error can be shown on the display. The
table below shows available error codes. The permanent failure display requires proper setting of [PFD1]
and [PFD0] bits. The permanent failure code display is disabled if [SLED] bit is set. The LED Flash Period
and LED Blink Period are fixed for these errors and not affected by the LED Data Flash settings.
PFStatus
[SOPT2]
[SOT2D]
[SOT2C]
[CIM_A]
[FBF]
LED3
LED2
Off
LED1
Flashing with LED Flash Period
Flashing with LED Blink Period
On
Off
Off
Flashing with LED Blink Period
Off
Flashing with LED Blink Period
Flashing with LED Flash Period Flashing with LED Blink Period
Flashing with LED Flash Period
On
Off
Flashing with LED Blink Period
Flashing with LED Blink Period
Flashing with LED Flash Period
[VSHUT]
[SUV]
Flashing with LED Flash Period
Flashing with LED Flash Period Flashing with LED Blink Period
On
[SOPT1]
[SOCD]
[SOCC]
[AFE_P]
[AFE_C]
[DFF]
On
Off
Flashing with LED Blink Period
Flashing with LED Blink Period
On
On
Flashing with LED Flash Period Flashing with LED Blink Period
Off
On
Off
Flashing with LED Blink Period
Flashing with LED Blink Period
Off
Off
Flashing with LED Blink Period Flashing with LED Flash Period
Copyright © 2010, Texas Instruments Incorporated
Flashing with LED Flash Period
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PFStatus
[DFETF]
[CFETF]
[CIM_R]
[SOT1D]
[SOT1C]
[SOV]
LED3
LED2
On
LED1
Flashing with LED Blink Period
Flashing with LED Blink Period
Flashing with LED Flash Period
Off
Flashing with LED Flash Period
Flashing with LED Blink Period Flashing with LED Flash Period
On
On
On
Off
Off
Off
Flashing with LED Blink Period
Flashing with LED Blink Period
On
Off
Flashing with LED Blink Period Flashing with LED Flash Period
[PFIN]
Flashing with LED Blink Period
Flashing with LED Blink Period
On
Off
None
Related Variables:
•
•
•
DF:Configuration:Registers(64):Operation Cfg B(2)[PFD1],[PFD0]
DF:LED Support:LED Cfg(67):LED Flash Period(0)
DF:LED Support:LED Cfg(67):LED Blink Period(2)
2.7.5 LED Current Configuration
The sink current setting of the LED inputs to the bq20z60-R1/bq20z65-R1 can be programmed with the
following settings. All of the LEDs are programmed with the same current level.
Table 2-15. LED Current Configuration
ILED1
ILED0
Sink Current
0 mA
0
0
1
1
0
1
0
1
3 mA
4 mA
5 mA (default)
Related Variables:
•
DF:LED Support:LED Cfg(67):Sink Current(19)
2.8 Device Operating Mode
The bq20z60-R1/bq20z65-R1 has several device power modes. During these modes, the
bq20z60-R1/bq20z65-R1 modifies its operation to minimize power consumption from the battery.
2.8.1 Normal Mode
During normal operation, the bq20z60-R1/bq20z65-R1 takes Current, Voltage, and Temperature
measurements, performs calculations, updates SBS data, and makes protection and status decisions at
1-second intervals. Between these periods of activity, the bq20z60-R1/bq20z65-R1 is in a reduced-power
state.
PRES is sampled once per second and if PRES is high, the OperationStatus [PRES] flag is cleared. If
PRES is low, the OperationStatus [PRES] flag is set, indicating the system is present (the battery is
inserted).
If the [NR] bit is set, the PRES input can be left floating, as it is not monitored.
Related Variables:
•
•
DF:Configuration:Registers(64):Operation Cfg B(2)[NR]
SBS:OperationStatus(0x54)[PRES]
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Device Operating Mode
2.8.2 Battery Pack Removed Mode/System Present Detection
2.8.2.1 Battery Pack Removed
The bq20z60-R1/bq20z65-R1 detects the Battery Pack Removed mode if the [NR] bit is set to 0 AND the
PRES input is high ([PRES] = 0).
On entry to the Battery Pack Removed mode, the [TCA] and [TDA] flags in BatteryStatus are set,
ChargingCurrent and ChargingVoltage are set to 0, the CHG and DSG FETs are turned off, and the
ZVCHG FET is turned off (if used).
Polling of the PRES pin continues at a rate of once every 1 s.
The bq20z60-R1/bq20z65-R1 exits the Battery Pack Removed state if the [NR] flag is set to 0 AND the
PRES input is low ([PRES] = 1). When this occurs, the [TCA] and [TDA] flags in BatteryStatus are reset.
Related Variables:
•
•
•
DF:Configuration:Registers(64):Operation Cfg B(2)[NR]
SBS:BatteryStatus(0x16)[TCA],[TDA]
SBS:OperationStatus(0x54)[PRES]
2.8.2.2 System Present
PRES is sampled once per second, and if PRES is high, the OperationStatus [PRES] flag is cleared. If
PRES is low, the OperationStatus [PRES] flag is set, indicating the system is present (the battery is
inserted). If the [NR] bit is set, the PRES input is ignored and can be left floating.
Related Variables:
•
•
DF:Configuration:Registers(64):Operation Cfg B(2)[NR]
SBS:OperationStatus(0x54)[PRES]
2.8.3 Sleep Mode
In Sleep mode, the bq20z60-R1/bq20z65-R1 measures Voltage and Temperature in Sleep Voltage Time
intervals and Current at Sleep Current Time intervals. At each interval the bq20z60-R1/bq20z65-R1
performs calculations, updates SBS data, and makes protection and status decisions. Between these
periods of activity, the bq20z60-R1/bq20z65-R1 is in a reduced-power state.
The bq20z60-R1/bq20z65-R1 enters Sleep mode when the following conditions exist:
•
•
•
If the [NR] bit is set to 0, [PRES] must also be set to 0 for the bq20z60-R1/bq20z65-R1 to enter sleep.
AND one of the following conditions:
(|Current| ≤ Sleep Current) AND (SMBus is low for Bus Low Time) AND (the [SLEEP] bit is set)
OR
(|Current| ≤ Sleep Current) AND (ManufacturerAccess Sleep command is received) AND (the
[SLEEP] bit is set).
Entry to Sleep mode is blocked if any of the PFStatus flags is set.
On entry to sleep, if [NR] = 0, the CHG and DSG FETs are turned off, and the ZVCHG FET is turned off
(if used), regardless of the [NRCHG] setting. If [NR] = 1, the CHG FET is turned off, and the ZVCHG FET
is turned off (if used). However, if [NRCHG] is set, then the CHG FET remains on.
Also, on entry to Sleep mode, the autocalibration of the ADC begins. However, if Temperature
≤ Cal Inhibit Temp Low or Temperature ≥ Cal Inhibit Temp High, autocalibration is not started on entry
to sleep mode. The activation of autocalibration is not affected by the state of [SLEEP],
Sleep Voltage Time, Sleep Current Time, or Current.
Additionally, if sleep mode is entered in response to ManufacturerAccess Sleep command, then the ADC
autocalibration is not performed.
The bq20z60-R1/bq20z65-R1 exits Sleep mode when one or more of the following conditions exist:
•
If the [NR] bit is set to 0 and [PRES] is set to 1.
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•
•
•
•
•
|Current| > Sleep Current
SMBC or SMBD input transitions high
Any current related flag is set in SafetyStatus
[OC], [CMTO], [OCHGV], [OCHGI], and [XCHGLV] flags in ChargingStatus are set
Wake function enabled by setting Wake Current Reg and a voltage across SRP and SRN is detected
The bq20z60-R1/bq20z65-R1 exits Sleep mode if the absolute value of Current is greater than
Sleep Current, OR the SMBC or SMBD input transitions high, OR any OperationStatus, ChargingStatus,
or SafetyStatus flags change state.
In addition, if [NR] is cleared, the bq20z60-R1/bq20z65-R1 exits Sleep mode when [PRES] = 1.
Related Variables:
•
•
•
•
•
•
•
•
•
•
•
•
•
DF:Configuration:Registers(64):Operation Cfg A(0)[SLEEP]
DF:Configuration:Registers(64):Operation Cfg B(2)[NR],[NRCHG]
DF:Power:Power(68):Sleep Current(10)
DF:Power:Power(68):Bus Low Time(12)
DF:Power:Power(68):Cal Inhibit Temp Low(13)
DF:Power:Power(68):Cal Inhibit Temp Low(15)
DF:Power:Power(68):Sleep Voltage Time(17)
DF:Power:Power(68):Sleep Current Time(18)
DF:Power:Power(68):Wake Current Reg(19)
SBS:ManufacturerAccess(0x00):Sleep(0x0011)
SBS:Current(0x0a)
SBS:SafetyStatus(0x51)
SBS:OperationStatus(0x54)[PRES]
2.8.4 Wake Function
The bq20z60-R1/bq20z65-R1 can exit sleep mode, if enabled, by the presence of a voltage across SRP
and SRN. The level of the current signal needed is programmed in Wake Current Reg.
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Low Byte
RSVD
RSVD
RSVD
RSVD
RSVD
IWAKE
RSNS1
RSNS0
LEGEND: RSVD = Reserved and must be programmed to 0
Figure 2-13. Wake Current Reg
IWAKE— This bit sets the current threshold for the Wake function.
0 = 0.5 A (or if RSNS0 = RSNS1 = 0, then this function is disabled)
1 = 1 A (or if RSNS0 = RSNS1 = 0, then this function is disabled)
Table 2-16. Wake Current Reg
RSNS1
RSNS0
Resistance
Disabled (default)
2.5 mΩ
0
0
1
1
0
1
0
1
5 mΩ
10 mΩ
Related Variables:
•
•
•
DF:Configuration:Registers(64):Operation Cfg A(0)[SLEEP]
DF:Power:Power(68):Wake Current Reg(19)
SBS:Current(0x0a)
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Security (Enables and Disables Features)
2.8.5 Shutdown Mode
The bq20z60-R1/bq20z65-R1 enters Shutdown mode if the following conditions are met:
•
•
•
[SHUTV] in Operation Cfg C is set to 0 AND Voltage ≤ Shutdown Voltage AND Current ≤ 0 for a
period of Cell Shutdown Time
OR
[SHUTV] in Operation Cfg C is set to 1 AND Min(CellVoltage4..1) ≤ Cell Shutdown Voltage AND
Current ≤ 0 for a period of Shutdown Time
OR
(ManufacturerAccess shutdown command received AND Current = 0) AND PackVoltage <
Charger Present threshold.
When the bq20z60-R1/bq20z65-R1 meets these conditions, the CHG, DSG, and ZVCHG FETs are turned
off, and the AFE is commanded to shut down. In Shutdown mode, the bq20z60-R1/bq20z65-R1 is
completely powered down because its supply is removed.
To exit Shutdown mode, the PACK voltage must be greater than its minimum operating voltage. When this
occurs, the AFE returns power to the bq20z60-R1/bq20z65-R1, the [WAKE] flag is set, and the AFE is
configured. The [WAKE] flag is cleared after approximately 1 s when all SBS parameters have been
measured and updated.
Related Variables:
•
•
•
•
•
•
•
•
•
•
•
•
DF:Power:Power(68):Shutdown Voltage(2)
DF:Power:Power(68):Shutdown Time(4)
DF:Power:Power(68):Cell Shutdown Voltage(5)
DF:Power:Power(68):Cell Shutdown Time(7)
DF:Power:Power(68):Charger Present(8)
DF:Configuration:Registers(64):Operation Cfg B(2)[NR]
DF:Configuration:Registers(64):Operation Cfg C(4)[SHUTV]
SBS:Voltage(0x09)
SBS:Current(0x0a)
SBS:CellVoltage4..1(0x3c..0x3f)
SBS:OperationStatus(0x54)[PRES],[WAKE]
SBS:PackVoltage(0x5a)
2.8.6 Ship Mode
While in sealed mode, the bq20z60-R1/bq20z65-R1 enters ship mode if ManufacturerAccess (MAC)
shutdown command (0x0010) is received 2 consecutive times AND PackVoltage < Charger Present
threshold AND no safety conditions. The 2 MAC writes cannot have any other MAC commands following
or between them. After the bq20z60-R1/bq20z65-R1 receives the 2 consecutive MAC (0x0010)
commands, the CHG, DSG, and ZVCHG FETs are turned off after Sealed Ship Delay time period. After
the passage of another Sealed Ship Delay period, ship mode is entered (i.e. after a time period which 2
times Sealed Ship Delay). For example, if Sealed Ship Delay is set to 5 seconds, then 5 seconds after
receiving the 2 MAC (0x0010) commands the FETs will turn off, and 10 seconds after receiving the 2
commands, the bq20z60-R1/bq20z65-R1 will enter ship mode.
Related Variables:
•
•
•
DF:Power:Power(68):Charger Present(8)
DF:Power:Power(68):Sealed Ship Delay(20)
SBS:PackVoltage(0x5a)
2.9 Security (Enables and Disables Features)
There are three levels of secured operation within the bq20z60-R1/bq20z65-R1. To switch between the
levels, different operations are needed with different codes. The three levels are Sealed, Unsealed, and
Full Access.
53
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Security (Enables and Disables Features)
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1. Full Access or Unsealed to Sealed— The use of the Seal Device command instructs the
bq20z60-R1/bq20z65-R1 to limit access to the SBS functions and data flash space and sets the
[SS] flag. In sealed mode, standard SBS functions have access per the Smart Battery Data
Specification, Appendix A. Extended SBS functions and data flash are not accessible. Once in
sealed mode, the part can never permanently return to Unsealed or Full Access modes.
2. Sealed to Unsealed— Instructs the bq20z60-R1/bq20z65-R1 to extend access to the SBS and data
flash space and clears the [SS] flag. In unsealed mode, all data, SBS, and DF have read/write
access. Unsealing is a two-step command performed by writing the first word of the UnSealKey to
ManufacturerAccess followed by the second word of UnSealKey to ManufacturerAccess. The
unseal key can be read and changed via the extended SBS block command UnSealKey when in
Full Access Mode. To return to the Sealed mode, either a hardware reset is needed, or the
ManufacturerAccess seal device command is needed to transit from Full Access or Unsealed to
Sealed.
3. Unsealed to Full Access— Instructs the bq20z60-R1/bq20z65-R1 to allow full access to all SBS
commands and data flash. The bq20z60-R1/bq20z65-R1 is shipped from TI in this mode. The keys
for Unsealed to Full Access can be read and changed via the extended SBS block command
FullAccessKey when in Full Access mode. Changing from Unsealed to Full Access is performed by
using the ManufacturerAccess command, by writing the first word of FullAccessKey to
ManufacturerAccess followed by the second word of the FullAccessKey to ManufacturerAccess.
The full access key can be read and changed via the extended SBS block command
FullAccessKey when in Full Access Mode. In Full Access mode, the command to go to boot ROM
can be sent.
Related Variables:
•
•
•
•
SBS:ManufacturerAccess(0x00):Seal Device(0x0020)
SBS:OperationStatus(0x54)[SS],[FAS]
SBS:UnSealKey(0x60)
SBS:FullAccessKey(0x61)
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Security (Enables and Disables Features)
Figure 2-14. Security
55
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Calibration
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2.10 Calibration
2.10.1 Coulomb-Counter Dead Band
The bq20z60-R1/bq20z65-R1 does not accumulate charge or discharge for gas gauging when the current
input is below the dead-band current threshold. The threshold is programmed in CC Deadband
(coulomb-counter dead band) and should be set sufficiently high to prevent false signal detection with no
charge or discharge flowing through the sense resistor.
Related Variable:
•
DF:Calibration:Current(107):CC Deadband(1)
2.10.2 Autocalibration
The bq20z60-R1/bq20z65-R1 provides an autocalibration feature to cancel the voltage offset error across
SRP and SRN for maximum charge measurement accuracy. The bq20z60-R1/bq20z65-R1 performs
autocalibration when the SMBus lines stay low continuously for a minimum of 5 s and Temperature is
within bounds of Cal Inhibit Temp Low and Cal Inhibit Temp High.
Related Variables:
•
•
•
DF:Power:Power(68):Cal Inhibit Temp Low(13)
DF:Power:Power(68):Cal Inhibit Temp High(15)
SBS:Temperature(0x08)
2.11 Communications
The bq20z60-R1/bq20z65-R1 uses SMBus v1.1 with master mode and packet error checking (PEC)
options per the SBS specification.
2.11.1 SMBus On and Off States
The bq20z60-R1/bq20z65-R1 detects an SMBus off state when SMBC and SMBD are logic-low for ≥ 2
seconds. Clearing this state requires either SMBC or SMBD to transition high. Within 1 ms, the
communication bus is available.
2.11.2 Packet Error Checking
The bq20z60-R1/bq20z65-R1 can receive or transmit data with or without PEC.
In the write-word protocol, if the host does not support PEC, the last byte of data is followed by a stop
condition. If the host does not support PEC, the [HPE] bit should be set to 0 (default).
In the write-word protocol, the bq20z60-R1/bq20z65-R1 receives the PEC after the last byte of data from
the host. If the host does not support PEC, the last byte of data is followed by a stop condition. After
receipt of the PEC, the bq20z60-R1/bq20z65-R1 compares the value to its calculation. If the PEC is
correct, the bq20z60-R1/bq20z65-R1 responds with an ACKNOWLEDGE. If it is not correct, the
bq20z60-R1/bq20z65-R1 responds with a NOT ACKNOWLEDGE and sets an error code. If the host
supports PEC, the [HPE] bit should be set to 1.
In the read-word and block-read in master mode, the host generates an ACKNOWLEDGE after the last
byte of data sent by the bq20z60-R1/bq20z65-R1. The bq20z60-R1/bq20z65-R1 then sends the PEC, and
the host, acting as a master receiver, generates a NOT ACKNOWLEDGE and a stop condition.
Related Variable:
•
DF:Configuration:Registers(64):Operation Cfg B(2)[HPE]
2.11.3 bq20z60-R1/bq20z65-R1 Slave Address
The bq20z60-R1/bq20z65-R1 uses address 0x16 on the SMB for communication.
56
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Communications
2.11.4 Broadcasts to Smart Charger and Smart Battery Host
The bq20z60-R1/bq20z65-R1 can broadcast messages to the smart battery charger and smart battery
host. This can be enabled with the [BCAST] bit.
The PEC byte for alarm transmissions to the charger in master mode can be enabled with the [CPE] bit.
The PEC byte for alarm transmissions in master mode to the smart battery host and the PEC byte for
receiving communications from all sources in slave mode can be enabled with the [HPE] bit.
Related Variable:
•
DF:Configuration:Registers(64):Operation Cfg B(2)[CPE],[HPE],[BCAST]
57
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Appendix A
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Standard SBS Commands
The bq20z60-R1/bq20z65-R1 SBS command set meets the SBD v1.1 specification. All SBS values are
updated in 1-second intervals.
A.1 ManufacturerAccess (0x00)
This read- or write-word function provides battery system-level data, access to test controls, and security
features.
Table A-1. ManufacturerAccess
SBS
Cmd.
Mode
Name
Format
Size in Bytes
Min Value Max Value Default Value Unit
0x0000 0xffff
0x00
R/W
ManufacturerAccess
Hex
2
–
–
A.1.1 System Data
The results of these commands must be read from ManufacturerAccess after a write with the command
word to ManufacturerAccess.
A.1.1.1 Device Type (0x0001)
Returns the IC part number.
Table A-2. Device Type
Manufacturer Access Mode
0x0001
Name
Format
Size in Bytes Min Value Max Value Default Value Unit
0x0600
R
Device Type
Hex
2
–
–
–
A.1.1.2 Firmware Version (0x0002)
Returns the firmware version. The format is most-significant byte (MSB) = decimal integer, and the
least-significant byte (LSB) = sub-decimal integer, e.g., 0x0120 = version 01.20.
Table A-3. Firmware Version
Manufacturer Access Mode Name
Format Size in Bytes
Min Value Max Value Default Value Unit
0x0002 Firmware Version Hex
R
2
–
–
–
–
A.1.1.3 Hardware Version (0x0003)
Returns the hardware version stored in a single byte of reserved data flash. e.g., 0x00a7 = version A7.
Table A-4. Hardware Version
Manufacturer Access
Mode Name
Format Size in Bytes Min Value Max Value Default Value Unit
0x00a7
0x0003
R
Hardware Version Hex
2
–
–
–
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ManufacturerAccess (0x00)
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A.1.1.4 DF Checksum (0x0004)
This function is only available when the bq20z60-R1/bq20z65-R1 is in unsealed mode or full access
mode, indicated by the [SS] and [FAS] flags. A write to this command forces the bq20z60-R1/bq20z65-R1
to generate a checksum of the full data flash (DF) array. The generated checksum is then returned within
45 ms.
NOTE: If another SMBus command is received while the checksum is being generated, the DF
checksum is generated, but the response may be a time-out (<25 ms).
Table A-5. DF Checksum
Max
Value
Manufacturer Access Mode
0x0004
Name
Format
Size in Bytes Min Value
Default Value Unit
R
DF Checksum Hex
2
–
–
–
–
A.1.1.5 Manufacturer Status (0x0006)
This function is available while the bq20z60-R1/bq20z65-R1 is in normal operation. This 16-bit word
reports the battery status.
Bit 7
FET1
0
Bit 6
FET0
0
Bit 5
PF1
0
Bit 4
PF0
0
Bit 3
STATE3
1
Bit 2
STATE2
0
Bit 1
STATE1
1
Bit 0
High Byte
Low Byte
STATE0
0
LEGEND: All bits are read-only.
Figure A-1. Manufacturer Status
FET1, FET0— Indicates the state of the charge and discharge FETs
0,0 = Both charge and discharge FETs are on.
0,1 = CHG FET is off, DSG FET is on.
1,0 = Both charge and discharge FETs are off.
1,1 = CHG FET is on, DSG FET is off.
PF1, PF0— Indicates permanent failure cause when permanent failure is indicated by STATE3..STATE0
0,0 = Fuse is blown if enabled via DF:Configuration:Register(64):Permanent Fail Cfg(6),
Permanent Fail Cfg 2(8)
0,1 = Cell imbalance failure
1,0 = Safety voltage failure
1,1 = FET failure
60
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ManufacturerAccess (0x00)
STATE3, STATE2, STATE1, STATE0— Indicates the battery state.
0,0,0,0 = Wake Up
0,0,0,1 = Normal Discharge
0,0,1,1 = Pre-Charge
0,1,0,1 = Charge
0,1,1,1 = Charge Termination
1,0,0,0 = Fault Charge Terminate
1,0,0,1 = Permanent Failure
1,0,1,0 = Overcurrent
1,0,1,1 = Overtemperature
1,1,0,0 = Battery Failure
1,1,0,1 = Sleep
1,1,1,0 = Discharge Prohibited
1,1,1,1 = Battery Removed
A.1.1.6 Chemistry ID (0x0008)
Returns the OCV table chemistry ID of the battery. The default table ID is 0x0100. For a list of OCV
chemistry IDs, see the Support of Multiple Li-Ion Chemistries With Impedance Track Gas Gauges
application note (SLUA372).
Table A-6. Chemistry ID
Size in
Bytes
Min
Max
Default
Manufacturer Access
Mode
Name
Format
Unit
Value Value Value
0x0008
R
Chemistry ID
Hex
2
0x0000 0xffff 0x0100
–
A.1.2 System Control
The commands in this section cause the bq20z60-R1/bq20z65-R1 to take actions when written. No data is
returned.
A.1.2.1 Shutdown (0x0010)
Instructs the bq20z60-R1/bq20z65-R1 to verify and enter shutdown mode (when the
bq20z60-R1/bq20z65-R1 is in Unsealed or Full Access mode). This command is only available when the
bq20z60-R1/bq20z65-R1 is in Unsealed or Full Access mode. Shutdown is not entered unless the
PackVoltage < Charger Present and Current ≤ 0.
In sealed mode, if the shutdown command (0x0010) is received 2 consecutive times, the
bq20z60-R1/bq20z65-R1 enters ship mode. The 2 MAC writes cannot have any other MAC commands
following or between them. For bq20z60-R1/bq20z65-R1 to enter ship mode, PackVoltage must be less
than Charger Present threshold AND there are no safety conditions.
Related Variables:
•
•
•
•
DF:Power:Power(68):Charger Present(8)
SBS:Current(0x0a)
SBS:OperationStatus(0x54)[SS],[FAS]
SBS:PackVoltage(0x5a)
61
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ManufacturerAccess (0x00)
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A.1.2.2 Sleep (0x0011)
Instructs the bq20z60-R1/bq20z65-R1 to verify and enter sleep mode if no other command is sent after
the Sleep command. Any SMB transition wakes up the bq20z60-R1/bq20z65-R1. It takes about 1 minute
before the device goes to sleep. This command is only available when the bq20z60-R1/bq20z65-R1 is in
Unsealed or Full Access mode.
Related Variables:
•
•
DF:Configuration:Registers(64):Operation Cfg A(0)[SLEEP]
SBS:OperationStatus(0x54)[SS],[FAS]
A.1.2.3 Seal Device (0x0020)
Instructs the bq20z60-R1/bq20z65-R1 to limit access to the extended SBS functions and data flash space,
sets the [SS] flag, and clears the [FAS] flag.
This command is only available when the bq20z60-R1/bq20z65-R1 is in Unsealed or Full Access mode.
See Security, Section 2.9, for detailed information.
Related Variable:
•
SBS:OperationStatus(0x54)[SS],[FAS]
A.1.2.4 IT Enable (0x0021)
This command forces the bq20z60-R1/bq20z65-R1 to begin the Impedance Track algorithm, changes
Update Status, and sets the [QEN] flag.
This command is only available when the bq20z60-R1/bq20z65-R1 is in Unsealed or Full Access mode.
Related Variables:
•
•
DF:Gas Gauging:State(82):Update Status(12)
SBS:OperationStatus(0x54)[VOK],[QEN],[SS],[FAS]
A.1.2.5 SAFE Activation (0x0030)
This command drives the SAFE pin high.
This command is only available when the bq20z60-R1/bq20z65-R1 is in Unsealed or Full Access mode.
Related Variable:
•
SBS:OperationStatus(0x54)[SS],[FAS]
A.1.2.6 SAFE Clear (0x0031)
This command sets the SAFE pin back to low.
This command is only available when the bq20z60-R1/bq20z65-R1 is in Unsealed or Full Access mode.
Related Variable:
•
SBS:OperationStatus(0x54)[SS],[FAS]
A.1.2.7 LEDs ON (0x0032)
Activates all configured LEDs to stay on.
This command is only available when the bq20z60-R1/bq20z65-R1 is in Unsealed or Full Access mode.
Related Variables:
•
•
DF:Configuration:Registers(64)Operation Cfg A(0)[LED1],[LED0]
SBS:OperationStatus(0x54)[SS],[FAS]
62
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ManufacturerAccess (0x00)
A.1.2.8 LEDs OFF (0x0033)
Deactivates all configured LEDs.
This command is only available when the bq20z60-R1/bq20z65-R1 is in Unsealed or Full Access mode.
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ManufacturerAccess (0x00)
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Related Variables:
•
•
DF:Configuration:Registers(64)Operation Cfg A(0)[LED1],[LED0]
SBS:OperationStatus(0x54)[SS],[FAS]
A.1.2.9 Display ON (0x0034)
Simulates a H-L transition at DISP pin and activates the LED display to show charge level.
This command is only available when the bq20z60-R1/bq20z65-R1 is in Unsealed or Full Access mode.
Related Variable:
•
SBS:OperationStatus(0x54)[SS],[FAS]
A.1.2.10 Calibration Mode (0x0040)
Places the bq20z60-R1/bq20z65-R1 into calibration mode. See the Data Flash Programming and
Calibrating the bq20zxx Family of Gas Gauges, application report (SLUA379A) for further details.
This command is only available when the bq20z60-R1/bq20z65-R1 is in Unsealed or Full Access mode.
Related Variable:
•
SBS:OperationStatus(0x54)[SS],[FAS]
A.1.2.11 Reset (0x0041)
The bq20z60-R1/bq20z65-R1 undergoes a full reset. The bq20z60-R1/bq20z65-R1 holds the clock line
down for a few milliseconds to complete the reset
This command is only available when the bq20z60-R1/bq20z65-R1 is in Unsealed or Full Access mode.
Related Variable:
•
SBS:OperationStatus(0x54)[SS],[FAS]
A.1.2.12 BootROM (0x0f00)
The bq20z60-R1/bq20z65-R1 goes into BootROM mode.
This command is only available when the bq20z60-R1/bq20z65-R1 is in Full Access mode.
Related Variable:
•
SBS:OperationStatus(0x54)[FAS]
A.1.2.13 Permanent Fail Clear (PFKey)
This two-step command must be written to ManufacturerAccess in following order: first word of the PFKey
first, followed by the second word of the PFKey. If the command fails, 4 seconds must pass before the
command can be reissued.
This command instructs the bq20z60-R1/bq20z65-R1 to clear the PFStatus, clear the [PF] flag, clear the
Fuse Flag, reset the SAFE pin, and unlock the data flash for writes.
This command is only available when the bq20z60-R1/bq20z65-R1 is in Unsealed or Full Access mode.
Related Variables:
•
•
•
•
•
•
DF:PF Status:Device Status Data(96):Saved PF Flags 1(0), Saved PF Flags 2(2)
DF:PF Status:Device Status Data(96):Fuse Flag(2)
SBS:SafetyStatus(0x51)[PF]
SBS:PFStatus(0x53)
SBS:OperationStatus(0x54)[SS],[FAS]
SBS:PFKey(0x62)
64
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ManufacturerAccess (0x00)
NOTE: The higher word must be immediately followed by the lower word. If the clear command
fails, the command can only be repeated 4 seconds after the previous attempt. If
communication other than the lower word occurs after the first word is sent, the Permanent
Fail Clear command fails.
A.1.2.14 Unseal Device (UnsealKey)
Instructs the bq20z60-R1/bq20z65-R1 to enable access to the SBS functions and data flash space and
clear the [SS] flag. This two-step command must be written to ManufacturerAccess in the following order:
first word of the UnSealKey first, followed by the second word of the UnSealKey. If the command fails, 4
seconds must pass before the command can be reissued.
This command is only available when the bq20z60-R1/bq20z65-R1 is in Sealed mode.
SeeSecurity, Section 2.9, for detailed information.
Related Variables:
•
•
SBS:OperationStatus(0x54)[SS]
SBS:UnSealKey(0x60)
A.1.2.15 Full Access Device (FullAccessKey)
Instructs the bq20z60-R1/bq20z65-R1 to enable full access to all SBS functions and data flash space and
set the [FAS] flag. This two-step command must be written to ManufacturerAccess in the following order:
first word of the FullAccessKey first, followed by the second word of the FullAccessKey.
This command is only available when the bq20z60-R1/bq20z65-R1 is in Unsealed mode.
See Security, Section 2.9, for detailed information.
Related Variables:
•
•
SBS:OperationStatus(0x54)[SS],[FAS]
SBS:FullAccessKey(0x61)
A.1.3 Extended SBS Commands
Also available via ManufacturerAccess in the sealed mode are some of the extended SBS commands.
The commands available are listed as follows.
The result of these commands must be read from ManufacturerAccess after a write to
ManufacturerAccess.
0x0046 = SBS:FETControl(0x46) (Read Only)
0x0050 = SBS:SafetyAlert(0x50)
0x0051 = SBS:SafetyStatus(0x51)
0x0052 = SBS:PFAlert(0x52)
0x0053 = SBS:PFStatus(0x53)
0x0054 = SBS:OperationStatus(0x54)
0x0055 = SBS:ChargingStatus(0x55)
0x0057 = SBS:ResetData(0x57)
0x0058 = SBS:WDResetData(0x58)
0x005a = SBS:PackVoltage(0x5a)
0x005d = SBS:AverageVoltage(0x5d)
0x0069 = SBS:SafetyStatus2(0x69)
0x006b = SBS:PFStatus2(0x6b)
0x006c = SBS:ManufBlock1(0x6c)
0x006d = SBS:ManufBlock2(0x6d)
65
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RemainingCapacityAlarm (0x01)
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0x006e = SBS:ManufBlock3(0x6e)
0x006f = SBS:ManufBlock4(0x6f)
0x0072 = SBS:TempRange(0x72)
A.2 RemainingCapacityAlarm (0x01)
This read- or write-word function sets or gets a low-capacity alarm threshold unsigned integer value with a
range of 0 to 65,535 and units of either mAh (CapM = 0) or 10 mWh (CapM = 1). The default value for
RemainingCapacityAlarm is stored in Rem Cap Alarm. If RemainingCapacityAlarm is set to 0, the alarm is
disabled.
If RemainingCapacity < RemainingCapacityAlarm, the [RCA] flag is set and the bq20z60-R1/bq20z65-R1
sends an AlarmWarning message to the SMBUS host.
If RemainingCapacity ≥ RemainingCapacityAlarm and [DSG] is set, the [RCA] flag is cleared.
0 = Remaining capacity alarm is disabled
1..700 = Remaining capacity limit for [RCA] flag
Table A-7. RemainingCapacityAlarm
SBS
Cmd.
Size in
Bytes
Min
Value
Max
Value Value
Default
Mode Name
Format
Unit
0x01
R/W RemainingCapacityAlarm Unsigned integer
2
0
700 300
mAh or 10 mWh
Related Variables:
•
•
•
•
DF:SBS Configuration:Data(48):Rem Cap Alarm(0)
SBS:BatteryMode(0x03)[CapM]
SBS:RemainingCapacity(0x0f)
SBS:BatteryStatus(0x16)[RCA],[DSG]
A.3 RemainingTimeAlarm (0x02)
This read- or write-word function sets or gets the RemainingTimeAlarm unsigned integer value in minutes
with a range of 0 to 65,535. The default value of RemainingTimeAlarm is stored in Rem Time Alarm. If
RemainingTimeAlarm = 0, this alarm is disabled.
If AverageTimeToEmpty < RemainingTimeAlarm, the [RTA] flag is set and the bq20z60-R1/bq20z65-R1
sends an AlarmWarning message to the SMBus host.
If AverageTimeToEmpty ≥ RemainingTimeAlarm, the [RTA] flag is reset.
0 = Remaining time alarm is disabled
1..30 = Remaining time limit for [RTA] flag
Table A-8. RemainingTimeAlarm
SBS
Cmd.
Size in
Bytes
Min
Value
Max
Value
Default
Value
Mode Name
R/W RemainingTimeAlarm
Format
Unit
0x02
Unsigned integer
2
0
30
10
min
Related Variables:
•
•
•
DF:SBS Configuration:Data(48):Rem Time Alarm(4)
SBS:AverageTimeToEmpty(0x12)
SBS:BatteryStatus(0x16)[RTA]
66
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BatteryMode (0x03)
A.4 BatteryMode (0x03)
This read- or write-word function selects the various battery operational modes and reports the battery's
capabilities and modes and flags minor conditions requiring attention.
Bit 7
CapM
CF
Bit 6
Bit 5
AM
Bit 4
Bit 3
Bit 2
Bit 1
PB
Bit 0
CC
High Byte
Low Byte
ChgM
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
PBS
ICC
LEGEND: High byte is read/write, low byte is read-only; RSVD = Reserved and must be programmed to 0
Figure A-2. BatteryMode
CapM— Sets the units used for capacity information and internal calculation.
0 = Reports in mA or mAh (default)
1 = Reports in 10 mW or 10 mWh
The following functions are instantaneously updated after a [CapM] change:
SBS:RemainingCapacityAlarm(0x01)
SBS:AtRate(0x04)
SBS:RemainingCapacity(0x0f)
SBS:FullChargeCapacity(0x10)
SBS:DesignCapacity(0x18)
The following functions are recalculated within 1 second after a [CapM] change:
SBS:RemainingTimeAlarm(0x02)
SBS:AtRateTimeToEmpty(0x06)
SBS:AtRateOK(0x07)
SBS:RunTimeToEmpty(0x11)
SBS:AverageTimeToEmpty(0x12)
SBS:BatteryStatus(0x16)
ChgM— Enables or disables the bq20z60-R1/bq20z65-R1 transmission of ChargingCurrent and
ChargingVoltage messages to the Smart Battery Charger.
0 = Enable ChargingVoltage and ChargingCurrent broadcasts to the Smart Battery Charger
by setting the [BCAST] bit in Operation Cfg B when charging is desired.
1 = Disable ChargingVoltage and ChargingCurrent broadcasts to the Smart Battery Charger.
(default)
Related Variables:
DF:Configuration:Registers(64):Operation Cfg B(2)[BCAST]
SBS:ChargingCurrent(0x14)
SBS:ChargingVoltage(0x15)
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AtRate (0x04)
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AM— Enables or disables AlarmWarning broadcasts to the host and Smart Battery Charger
0 = Enable AlarmWarning broadcast to host and Smart Battery Charger by setting the
[BCAST] bit in Operation Cfg B (default). The bq20z60-R1/bq20z65-R1 sends the
AlarmWarning messages to the SMBus Host and the Smart Battery Charger any time an
alarm condition is detected.
1 = Disable AlarmWarning broadcast to host and Smart BatteryCharger. The
bq20z60-R1/bq20z65-R1 does not master the SMBus, and AlarmWarning messages are
not sent to the SMBus Host and the Smart Battery Charger for a period of no more than
65 seconds and no less than 45 seconds. [AM] is automatically cleared by the
bq20z60-R1/bq20z65-R1 60 seconds after being set to 1, independent of the [BCAST]
bit.
Related Variable:
DF:Configuration:Registers(64):Operation Cfg B(2)[BCAST]
NOTE: The system, as a minimum, is required to poll the Smart Battery Charger every 10
seconds if the [AM] flag is set.
PB— Sets the role of the battery pack. This flag is not used by the bq20z60-R1/bq20z65-R1 and should
be set to 0.
CC— Enable or disable internal charge controller. This flag is not used by bq20z60-R1/bq20z65-R1 and
should be set to 0.
CF— This flag is set if MaxError > CF MaxError Limit
0 = Battery OK
1 = Condition cycle requested
Related Variables:
DF:SBS Configuration:Data(48):CF MaxError Limit(21)
SBS:MaxError(0x0c)
PBS— Primary battery support is not supported by bq20z60-R1/bq20z65-R1 and is fixed to 0.
ICC— This flag indicates whether the internal charge controller function is supported or not. This value is
fixed to 1.
A.5 AtRate (0x04)
This read- or write-word function is the first half of a two-function call set used to set the AtRate value,
which is used in calculations made by the AtRateTimeToFull, AtRateTimeToEmpty, and AtRateOK
functions. The AtRate units are in either mA ([CapM] = 0) or 10 mW ([CapM] = 1).
When the AtRate value is positive, the AtRateTimeToFull function returns the predicted time to full charge
at the AtRate value of charge. When the AtRate value is negative, the AtRateTimeToEmpty function
returns the predicted operating time at the AtRate value of discharge. When the AtRate value is negative,
the AtRateOK function returns a Boolean value that predicts the battery's ability to supply the AtRate value
of additional discharge energy (current or power) for 10 seconds.
The default value for AtRate is zero.
Table A-9. AtRate
SBS
Cmd.
Mode
Name
Format
Size in Bytes Min Value
–32,768
Max Value Default Value
32,767
Unit
0x04
R/W
AtRate
Signed integer
2
0
mA or 10 mW
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AtRateTimeToFull (0x05)
Related Variables:
•
•
•
•
SBS:AtRateTimeToFull(0x05)
SBS:AtRateTimeToEmpty(0x06)
SBS:AtRateOK(0x07)
SBS:BatteryMode(0x03)[CapM]
A.6 AtRateTimeToFull (0x05)
This read-word function returns an unsigned integer value of the predicted remaining time to fully charge
the battery using a CC-CV method at the AtRate value in minutes, with a range of 0 to 65,534. A value of
65,535 indicates that the AtRate = 0.
AtRateTimeToFull can report time based on constant current ([CapM] = 0) or constant power ([CapM] =
1), and updates within 1 second after the SMBus host sets the AtRate value. The
bq20z60-R1/bq20z65-R1 automatically updates AtRateTimeToFull based on the AtRate function at
1-second intervals.
0..65,534 = predicted time to full charge, based on AtRate
65,535 = no charge or discharge (AtRate is 0)
Table A-10. AtRateTimeToFull
SBS
Cmd.
Size in
Bytes
Min
Value
Max
Value
Default
Value
Mode Name
AtRateTimeToFull
Format
Unit
0x05
R
Unsigned integer
2
0
65,535
–
min
Related Variables:
•
•
SBS:AtRate(0x04)
SBS:BatteryMode(0x03)[CapM]
A.7 AtRateTimeToEmpty (0x06)
This read-word function returns an unsigned integer value of the predicted remaining operating time in
minutes with a range of 0 to 65,534, if the battery is discharged at the AtRate value. A value of 65,535
indicates that AtRate = 0.
AtRateTimeToEmpty can report time based on constant current ([LDMD] = 0), or constant power ([LDMD]
= 1), and is updated within 1 second after the SMBus host sets the AtRate value. The
bq20z60-R1/bq20z65-R1 updates AtRateTimeToEmpty at 1-second intervals.
0..65,534 = predicted remaining operating time, based on AtRate
65,535 = no charge or discharge (AtRate is 0)
Table A-11. AtRateTimeToEmpty
SBS
Cmd.
Size in
Bytes
Min
Max
Default
Mode
Name
Format
Unit
Value Value Value
0x06
R
AtRateTimeToEmpty
Unsigned integer
2
0
65,535
–
min
Related Variables:
•
•
SBS:AtRate(0x04)
SBS:OperationStatus(0x54)[LDMD]
A.8 AtRateOK (0x07)
This read-word function returns a boolean value that indicates whether or not the battery can deliver the
AtRate value of energy for 10 seconds.
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Temperature (0x08)
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The bq20z60-R1/bq20z65-R1 updates this value within 1 second after the SMBus host sets the AtRate
function value. The bq20z60-R1/bq20z65-R1 updates AtRateOK at 1-second intervals.
If AtRate function returns ≥0, AtRateOK always returns TRUE.
0 = FALSE bq20z60-R1/bq20z65-R1 cannot deliver energy for 10 seconds, based on
discharge rate indicated in AtRate
1..65,535 = TRUE bq20z60-R1/bq20z65-R1 cn deliver energy for 10 seconds, based on discharge
rate indicated in AtRate
Table A-12. AtRateOK
SBS Cmd. Mode Name
Format
Size in Bytes Min Value Max Value
65,535
Default Value
Unit
0x07 AtRateOK Unsigned integer
R
2
0
–
min
Related Variable:
SBS:AtRate(0x04)
•
A.9 Temperature (0x08)
This read-word function returns an unsigned integer value of the temperature in units of 0.1 K, as
measured by the bq20z60-R1/bq20z65-R1. It has a range of 0 to 6553.5 K.
The source of the measured temperature is configured by the [TEMP1], [TEMP0] bits in the
Operation Cfg A register.
Table A-13. Temperature
SBS Cmd. Mode Name
Format
Size in Bytes Min Value Max Value
65,535
Default Value
Unit
0x08 Temperature Unsigned integer
R
2
0
–
0.1 K
Related Variable:
DF:Configuration:Register(64):Operation Cfg A(0)
•
A.10 Voltage (0x09)
This read-word function returns an unsigned integer value of the sum of the individual cell voltage
measurements in mV, with a range of 0 to 20,000 mV.
Table A-14. Voltage
SBS Cmd. Mode Name
0x09 Voltage
Format
Size in Bytes Min Value Max Value
20,000
Default Value
Unit
R
Unsigned integer
2
0
–
mV
A.11 Current (0x0a)
This read-word function returns an integer value of the measured current being supplied (or accepted) by
the battery in mA, with a range of –32,768 to 32,767. A positive value indicates charge current and a
negative value indicates discharge.
Any current value within Deadband is reported as 0 mA by the Current function.
Table A-15. Current
SBS Cmd. Mode Name
0x0a Current
Format
Size in Bytes Min Value Max Value
–32,768 32,767
Default Value
Unit
R
Signed integer
2
–
mA
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AverageCurrent (0x0b)
Related Variable:
DF:Calibration:Current(107):Deadband(1)
•
NOTE: The Current function is the average of four internal current measurements over a 1-second
period.
A.12 AverageCurrent (0x0b)
This read-word function returns a signed integer value that approximates a one-minute rolling average of
the current being supplied (or accepted) through the battery terminals in mA, with a range of –32,768 to
32,767.
AverageCurrent is calculated by a rolling IIR filtered average of Current function data with a period of
14.5 s. During the time after a reset and before 14.5 s has elapsed, the reported AverageCurrent =
Current function value.
Table A-16. AverageCurrent
SBS
Cmd.
Min
Value
Mode
Name
Format
Size in Bytes
Max Value
Default Value
Unit
0x0b
R
AverageCurrent Signed integer
2
–32,768
32,767
–
mA
Related Variables:
•
•
DF:Calibration:Current(107):Filter(0)
SBS:Current(0x0a)
A.13 MaxError (0x0c)
This read-word function returns an unsigned integer value of the expected margin of error, in %, in the
state-of-charge calculation, with a range of 1% to 100%.
Max error is incremented internally by 0.05% for every increment of CylceCount after the last QMAX
update. MaxError is incremented in the display by 1% for each increment of CycleCount.
Event
MaxError Setting
Set to 100%
Set to 1%
Full reset
QMAX and Ra table update
QMAX update
Ra table update
Set to 3%
Set to 5%
Table A-17. MaxError
SBS Cmd. Mode Name
Format
Size in Bytes Min Value Max Value
100
Default Value
Unit
0x0c
R
MaxError
Unsigned integer
1
0
–
%
Related Variable:
SBS:CycleCount(0x17)
•
A.14 RelativeStateOfCharge (0x0d)
This read-word function returns an unsigned integer value of the predicted remaining battery capacity
expressed as a percentage of FullChargeCapacity with a range of 0 to 100%, with fractions of % rounded
up.
If the [RSOCL] bit in Operation Cfg C is set, then RelativeStateofCharge and RemainingCapacity are
held at 99% until primary charge termination occurs and only displays 100% on entering primary charge
termination.
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AbsoluteStateOfCharge (0x0e)
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If the [RSOCL] bit in Operation Cfg C is cleared, then RelativeStateofCharge and RemainingCapacity are
not held at 99% until primary charge termination occurs. Fractions of % greater than 99% are rounded up
to display 100%.
Table A-18. RelativeStateOfCharge
SBS
Cmd.
Size in
Bytes
Min
Value Value
Max
Default
Value
Mode
Name
Format
Unit
0x0d
R
RelativeStateOfCharge
Unsigned integer
1
0
100
–
%
Related Variables:
•
•
DF:Configuration:Registers(64):Operation Cfg C(4)[RSOCL]
SBS:FullChargeCapacity(0x10)
A.15 AbsoluteStateOfCharge (0x0e)
This read-word function returns an unsigned integer value of the predicted remaining battery capacity
expressed in %, with a range of 0 to 100%, with any fractions of % rounded up. The following table shows
the calculation used, depending on the setting of the [CapM] flag.
CapM AbsoluteStateOfCharge Calculation
0 = RemainingCapacity / Design Capacity
1 = RemainingCapacity / Design Energy
NOTE: AbsoluteStateOfCharge can return values > 100%.
Table A-19. AbsoluteStateOfCharge
SBS
Cmd.
Size in
Bytes
Min
Value Value
Max
Default
Value
Mode
Name
Format
Unit
0x0e
R
AbsoluteStateOfCharge
Unsigned integer
1
0
100+
–
%
Related Variables:
•
•
•
•
DF:SBS Configuration:Data(48):Design Capacity(22)
DF:SBS Configuration:Data(48):Design Energy(24)
SBS:BatteryMode(0x03)[CapM]
SBS:RemainingCapacity(0x0f)
A.16 RemainingCapacity (0x0f)
This read- or write-word function returns an unsigned integer value, with a range of 0 to 65,535, of the
predicted charge or energy remaining in the battery. This value is expressed in either charge (mAh) or
energy (10 mWh), depending on the setting of the [CapM] flag.
Table A-20. RemainingCapacity
SBS
Cmd.
Size in Min
Bytes Value Value Value
Max
Default
Mode
Name
Format
Unit
0x0f
R/W
RemainingCapacity
Unsigned integer
2
0
65,535
–
mAh or 10 mWh
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FullChargeCapacity (0x10)
Related Variable:
SBS:BatteryMode(0x03)[CapM]
•
A.17 FullChargeCapacity (0x10)
This read-word function returns an unsigned integer value of the predicted pack capacity when it is fully
charged. This value is expressed in either charge (mAh) or power (10 mWh) depending on setting of
[CapM] flag. The maximum charge capacity is limited to 32Ah.
Table A-21. FullChargeCapacity
Size
in
Bytes
SBS
Cmd.
Min
Value Value
Max
Default
Value
Mode
Name
Format
Unit
0x10
R
FullChargeCapacity
Unsigned integer
2
0
32,767
–
mAh or 10 mWh
Related Variable:
SBS:BatteryMode(0x03)[CapM]
•
A.18 RunTimeToEmpty (0x11)
This read-word function returns an unsigned integer value of the predicted remaining battery life at the
present rate of discharge, in minutes, with a range of 0 to 65,534 minutes. A value of 65,535 indicates that
the battery is not being discharged.
This value is calculated and updated based on current or power, depending on the setting of the [CapM]
flag.
0..65,534 = Predicted remaining battery life, based on Current
65,535 = Battery is not being discharged
Table A-22. RunTimeToEmpty
SBS
Cmd.
Size in Min
Max
Value Value
Default
Mode
Name
Format
Unit
Bytes
Value
0x11
R
RunTimeToEmpty
Unsigned integer
2
0
65,534
–
min
Related Variable:
SBS:BatteryMode(0x03)[CapM]
•
A.19 AverageTimeToEmpty (0x12)
This read-word function returns an unsigned integer value of the predicted remaining battery life, in
minutes, based on AverageCurrent, with a range of 0 to 65,534. A value of 65,535 indicates that the
battery is not being discharged.
This value is calculated based on current or power, depending on the setting of the [CapM] flag.
0..65,534 = Predicted remaining battery life, based on AverageCurrent
65,535 = Battery is not being discharged
Table A-23. AverageTimeToEmpty
SBS
Cmd.
Min
Value
Mode Name
Format
Size in Bytes
Max Value Default Value Unit
65,534 min
0x12
R
AverageTimeToEmpty Unsigned integer
2
0
–
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AverageTimeToFull (0x13)
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Related Variables:
•
•
SBS:BatteryMode(0x03)[CapM]
SBS:AverageCurrent(0x0b)
A.20 AverageTimeToFull (0x13)
This read-word function returns an unsigned integer value of predicted remaining time until the battery
reaches full charge, in minutes, based on AverageCurrent, with a range of 0 to 65,534. A value of 65,535
indicates that the battery is not being charged.
0..65,534 = Predicted remaining time until full charge
65,535 = Battery is not being charged
Table A-24. AverageTimeToFull
Max
Value
SBS Cmd. Mode Name
Format
Size in Bytes Min Value
Default Value Unit
– min
0x13 AverageTimeToFull Unsigned integer
R
2
0
65,534
Related Variable:
SBS:AverageCurrent(0x0b)
•
A.21 ChargingCurrent (0x14)
This read-word function returns an unsigned integer value of the desired charging current, in mA, with a
range of 0 to 65,534. A value of 65,535 indicates that a charger should operate as a voltage source
outside its maximum regulated current range.
0..65,534 = Desired charging current in mA
65,535 = Charger should operate as voltage source outside its maximum regulated current range.
Table A-25. ChargingCurrent
SBS Cmd. Mode Name
0x14 ChargingCurrent
Format
Size in Bytes Min Value
Max Value Default Value
65,534
Unit
R
Unsigned integer
2
0
–
mA
A.22 ChargingVoltage (0x15)
This read-word function returns an unsigned integer value of the desired charging voltage, in mV, where
the range is 0 to 65,534. A value of 65,535 indicates that the charger should operate as a current source
outside its maximum regulated voltage range.
0..65,534 = Desired charging voltage in mV
65,535 = cCharger should operate as current source outside its maximum regulated voltage
range.
Table A-26. ChargingVoltage
SBS
Cmd.
Mode Name
Format
Size in Bytes Min Value
Max Value
Default Value
Unit
0x15
R
ChargingVoltage Unsigned
integer
2
0
65,534
–
mV
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BatteryStatus (0x16)
A.23 BatteryStatus (0x16)
This read-word function returns the status of the bq20z60-R1/bq20z65-R1-based battery.
Bit 7
OCA
INIT
Bit 6
TCA
DSG
Bit 5
RSVD
FC
Bit 4
OTA
FD
Bit 3
TDA
EC3
Bit 2
RSVD
EC2
Bit 1
RCA
EC1
Bit 0
RTA
EC0
High Byte
Low Byte
LEGEND: All values read-only; RSVD = Reserved
Figure A-3. BatteryStatus
OCA— 1 = Over Charged Alarm
TCA— 1 = Terminate Charge Alarm
OTA— 1 = Over Temperature Alarm
TDA— 1 = Terminate Discharge Alarm
RCA— Remaining Capacity Alarm
1 = Remaining Capacity Alarm is set
See: SBS:RemainingCapacityAlarm(0x01)
RTA— Remaining Time Alarm
1 = Remaining Time Alarm is set
See: SBS:RemainingTimeAlarm(0x02)
INIT— 1 = Initialization. The INIT flag is always set in normal operation.
DSG— Discharging
0 = bq20z60-R1/bq20z65-R1 is in charging mode
1 = bq20z60-R1/bq20z65-R1 is in discharging mode or relaxation mode, or valid charge
termination has occurred.
See: Gas Gauging, Section C.10
FC— 1 = Fully Charged
FD— 1 = Fully Discharged
EC3, EC2, EC1, EC0— Error Code, returns status of processed SBS function
0,0,0,0 = OK
bq20z60-R1/bq20z65-R1 processed the function code with no errors
detected.
0,0,0,1 = BUSY
bq20z60-R1/bq20z65-R1 is unable to process the function code at this time.
0,0,1,0 = Reserved
bq20z60-R1/bq20z65-R1 detected an attempt to read or write to a function
code reserved by this version of the specification, or
bq20z60-R1/bq20z65-R1 detected an attempt to access an unsupported
optional manufacturer function code.
0,0,1,1 = Unsupported
bq20z60-R1/bq20z65-R1 does not support this function code as defined in
this version of the specification.
0,1,0,0 = AccessDenied bq20z60-R1/bq20z65-R1 detected an attempt to write to a read-only function
code.
0,1,0,1 = Over/Underflow bq20z60-R1/bq20z65-R1 detected a data overflow or underflow.
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CycleCount (0x17)
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0,1,1,0 = BadSize
bq20z60-R1/bq20z65-R1 detected an attempt to write to a function code with
an incorrect data block.
0,1,1,1 = UnknownError bq20z60-R1/bq20z65-R1 detected an unidentifiable error.
A.24 CycleCount (0x17)
This read-word function returns, as an unsigned integer value, the number of cycles the battery has
experienced, with a range of 0 to 65,535. The default value is stored in the data flash value Cycle Count,
which is updated each time this variable is incremented. One cycle count is the accumulated discharge of
CC Threshold.
When the bq20z60-R1/bq20z65-R1 is in unsealed or full-access mode, this block is R/W.
Table A-27. CycleCount
SBS Cmd.
Mode
Name
Format
Size in Bytes Min Value Max Value
65,535
Default Value Unit
0x17
R/W
CycleCount
Unsigned integer
2
0
0
–
Related Variables:
•
•
DF:SBS Configuration:Data(48)Cycle Count(16)
DF:SBS Configuration:Data(48)CC Threshold(18)
A.25 DesignCapacity (0x18)
This read-word function returns, as an unsigned integer value, the theoretical or nominal capacity of a new
pack, stored in Design Capacity or in Design Energy.
The DesignCapacity value is expressed in either current (mAh at a C/5 discharge rate) or power, (10 mWh
at a P/5 discharge rate) depending on the setting of the [CapM] bit.
When the bq20z60-R1/bq20z65-R1 is in unsealed or full-access mode, this block is R/W. The maximum
capacity is 32Ah.
Table A-28. DesignCapacity
SBS
Cmd.
Size in Min
Bytes Value
Max
Value
Default
Value
Mode Name
CapM
Format
Unit
0
Unsigned
integer
2
0
32,767
4400
mAh
0x18
R/W
DesignCapacity
1
Unsigned
integer
2
0
32,767
6336
10 mWh
Related Variables:
•
•
•
•
DF:SBS Configuration:Data(48):Design Capacity(22)
DF:SBS Configuration:Data(48):Design Energy(24)
SBS:BatteryMode(0x03)[CapM]
SBS:OperationStatus(0x54)[SS],[FAS]
A.26 DesignVoltage (0x19)
This read-word function returns an unsigned integer value of the theoretical voltage of a new pack, in mV,
with a range of 0 to 65,535. The default value is stored in Design Voltage.
When the bq20z60-R1/bq20z65-R1 is in unsealed or full-access mode, this block is R/W.
Table A-29. DesignVoltage
SBS
Cmd.
Mode Name
R/W DesignVoltage
Format
Size in Bytes Min Value
Max Value
Default
Value
Unit
0x19
Unsigned
integer
2
7000
18,000
14,400
mV
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SpecificationInfo (0x1a)
Related Variables:
•
•
DF:SBS Configuration:Data(48):Design Voltage(8)
SBS:OperationStatus(0x54)[SS],[FAS]
A.27 SpecificationInfo (0x1a)
This read-word function returns, as an unsigned integer value, the version number of the Smart Battery
Specification the battery pack supports, as well as voltage- and current-scaling information.
Power-scaling is the product of the voltage-scaling times the current-scaling. The data is packed in the
following fashion:
IPScale × 0x1000 + VScale x 0x0100 + SpecID_H × 0x0010 + SpecID_L
VScale (voltage scaling) and IPScale (current scaling) should always be set to zero. The default setting is
stored in Spec Info.
When the bq20z60-R1/bq20z65-R1 is in unsealed or full-access mode, this block is R/W.
Table A-30. SpecificationInfo
SBS
Cmd.
Mode Name
Format
Size in Bytes Min Value
0x0000
Max Value
Default Value
Unit
0x1a
R/W
SpecificationInfo Hex
2
0xffff
0x0031
–
15
14 13 12
11
10
9
8
7
6
5
4
3
2
1
0
IPScale (0)
(multiplies
current by
VScale (0)
(multiplies
voltage by
SpecID_H
(0..15)
SpecID_L
(0..15)
10IPScale
)
10VScale
)
LEGEND: R/W = Read/write; R = Read-only; - n = value after reset
Figure A-4. SpecificationInfo
Related Variables:
•
•
DF:SBS Configuration:Data(48):Spec Info(10)
SBS:OperationStatus(0x54)[SS],[FAS]
A.28 ManufactureDate (0x1b)
This read-word function returns the date the pack was manufactured in a packed integer. The date is
packed in the following fashion:
(Year – 1980) × 512 + month × 32 + day
The default value for this function is stored in Manuf Date.
When the bq20z60-R1/bq20z65-R1 is in unsealed or full-access mode, this block is R/W.
Table A-31. ManufactureDate
SBS
Cmd.
Mode
Name
Format
Size in Bytes Min Value Max Value
Default Value Unit
0x1b
R/W
ManufacturerDate Unsigned integer
2
0
65,535
0
–
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Year
Month
(1..12)
Date
(0..31)
biased
by 1980
(0..127)
MSB
LSB
MSB
LSB
MSB
LSB
Figure A-5. ManufacturerDate
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SerialNumber (0x1c)
www.ti.com
Related Variables:
•
•
DF:SBS Configuration:Data(48):Manuf Date(12)
SBS:OperationStatus(0x54)[SS],[FAS]
A.29 SerialNumber (0x1c)
This read-word function is used to return an unsigned integer serial number. The default value of this
function is stored in Ser. Num..
When the bq20z60-R1/bq20z65-R1 is in unsealed or full-access mode, this block is R/W.
Table A-32. SerialNumber
SBS Cmd. Mode Name
0x1c R/W SerialNumber
Format
Size in Bytes Min Value
0x0000
Max Value
Default Value
Unit
Hex
2
0xffff
0x0001
–
Related Variables:
•
•
DF:SBS Configuration:Data(48):Ser. Num.(14)
SBS:OperationStatus(0x54)[SS],[FAS]
A.30 ManufacturerName (0x20)
This read-block function returns a character string containing the battery manufacturer's name with a
maximum length of 20 characters (20 data + length byte).
The default setting of this function is stored in data flash Manuf Name.
When the bq20z60-R1/bq20z65-R1 is in unsealed or full-access mode, this block is R/W.
Table A-33. ManufacturerName
SBS
Cmd.
Mode Name
Format
Size in Bytes Min Value
20 + 1
Max Value
Default Value
Unit
0x20
R/W ManufacturerName String
–
–
Texas
–
Instruments
Related Variables:
•
•
DF:SBS Configuration:Data(48):Manuf Name(26)
SBS:OperationStatus(0x54)[SS],[FAS]
A.31 DeviceName (0x21)
This read-block function returns a character string that contains the battery name with a maximum length
of 20 characters (20 data + length byte).
The default setting of this function is stored in data flash Device Name.
When the bq20z60-R1/bq20z65-R1 is in unsealed or full-access mode, this block is R/W.
Table A-34. DeviceName
SBS Cmd.
Mode
Name
Format
Size in Bytes Min Value
20 + 1
Max Value
Default Value
Unit
0x21
R/W
DeviceName
String
–
–
bq20z60 or
bq20z65
–
78
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DeviceChemistry (0x22)
Related Variables:
•
•
DF:SBS Configuration:Data(48):Device Name(38)
SBS:OperationStatus(0x54)[SS],[FAS]
A.32 DeviceChemistry (0x22)
This read-block function returns a character string that contains the battery chemistry with a maximum
length of 4 characters (4 data + length byte).
The default setting of this function is stored in data flash Device Chemistry, although it has no use for
internal charge control or fuel gauging.
When the bq20z60-R1/bq20z65-R1 is in unsealed or full-access mode, this block is R/W.
Table A-35. DeviceChemistry
SBS Cmd. Mode Name
Format
Size in Bytes Min Value
4 + 1
Max Value
Default Value
Unit
0x22 R/W DeviceChemistry String
–
–
LION
–
Related Variables:
•
•
DF:SBS Configuration:Data(48):Device Chemistry(46)
SBS:OperationStatus(0x54)[SS],[FAS]
A.33 ManufacturerData (0x23)
This read-block function returns several configuration data flash elements with an absolute maximum
length of 14 data + 1 length byte (stored in ManufacturerData Length). The ManufacturerData elements
shown in Table A-36 are stored in the ManufacturerData subclass.
When the bq20z60-R1/bq20z65-R1 is in Unsealed or full-access mode, this block is R/W.
Table A-36. ManufacturerData
Data
Byte
Name
Format
Manufacturer Data
0
1
2
3
4
5
6
7
8
9
Pack Lot Code
Hex
PCB Lot Code
Firmware Version
Hardware Revision
Cell Revision
bq20z60-R1/bq20z65- 10
Partial Reset Counter
Full Reset Counter
Watchdog Reset Counter
Check Sum
R1 Counter
11
12
13
14
String Length Byte
Related Variables:
•
•
•
•
•
•
DF:System Data:Manufacturer Data(56):Pack Lot Code(0)
DF:System Data:Manufacturer Data(56):PCB Lot Code(2)
DF:System Data:Manufacturer Data(56):Firmware Version(4)
DF:System Data:Manufacturer Data(56):Hardware Revision(6)
DF:System Data:Manufacturer Data(56):Cell Revision(8)
SBS:OperationStatus(0x54)[SS],[FAS]
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Authenticate (0x2f)
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A.34 Authenticate (0x2f)
This read- or write-block function allows the host to authenticate a bq20z60-R1/bq20z65-R1-based battery
using an SHA-1 authentication transform with a length of 20 data bytes + 1 length byte. See the Using
SHA-1 in bq20zxx Family of Gas Gauges application report (SLUA359) for detailed information.
Table A-37. Authenticate
SBS Cmd. Mode Name
0x2f R/W Authenticate
Format
Size in Bytes Min Value
20 + 1
Max Value
Default Value
Unit
String
–
–
–
–
A.35 CellVoltage4..1 (0x3c..0x3f)
These read-word functions return an unsigned value of the calculated individual cell voltages, in mV, with
a range of 0 to 65,535. CellVoltage1 corresponds to the bottommost series cell element, whereas
CellVoltage4 corresponds to the topmost series cell element.
Table A-38. CellVoltage4..1
SBS Cmd.
0x3c
Mode
Name
Format
Size in Bytes Min Value Max Value
65,535
Default Value
Unit
R
CellVoltage4
CellVoltage3
CellVoltage2
CellVoltage1
Unsigned
integer
2
0
–
–
–
–
mV
0x3d
0x3e
0x3f
A.36 SBS Command Values
Table A-39. SBS COMMANDS
SBS
Cmd
Size in
Bytes
Min
Value
Max
Value
Mode
Name
Format
Default Value
Unit
0x00
R/W ManufacturerAccess
Hex
2
2
0x0000
0
0xffff
–
–
0x01
0x02
R/W RemainingCapacityAlarm
Integer
700 or
1000
300 or 432 mAh or 10
mWh
R/W RemainingTimeAlarm
Unsigned
integer
2
0
30
10
min
0x03
0x04
R/W BatteryMode
R/W AtRate
Hex
2
2
0x0000
–32,768
0xffff
–
0
–
Integer
32,767
mA or 10
mW
0x05
0x06
0x07
0x08
0x09
R
R
R
R
R
AtRateTimeToFull
AtRateTimeToEmpty
AtRateOK
Unsigned
integer
2
2
2
2
2
0
0
0
0
0
65,535
65,535
65,535
65,535
20,000
–
–
–
–
–
min
min
–
Unsigned
integer
Unsigned
integer
Temperature
Voltage
Unsigned
integer
0.1 K
mV
Unsigned
integer
0x0a
0x0b
0x0c
R
R
R
Current
Integer
Integer
2
2
1
–32,768
–32,768
0
32,767
32,767
100
–
–
–
mA
mA
%
AverageCurrent
MaxError
Unsigned
integer
0x0d
0x0e
R
R
RelativeStateOfCharge
AbsoluteStateOfCharge
Unsigned
integer
1
1
0
0
100
–
–
%
%
Unsigned
integer
100+
80
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SBS Command Values
Table A-39. SBS COMMANDS (continued)
SBS
Cmd
Size in
Bytes
Min
Value
Max
Value
Mode
Name
Format
Default Value
Unit
0x0f
R/W RemainingCapacity
Unsigned
integer
2
2
2
2
2
2
2
0
0
0
0
0
0
0
65,535
32,767
65,534
65,534
65,534
65,534
65,534
–
–
–
–
–
–
–
mAh or 10
mWh
0x10
0x11
0x12
0x13
0x14
0x15
R
R
R
R
R
R
R
FullChargeCapacity
RunTimeToEmpty
AverageTimeToEmpty
AverageTimeToFull
ChargingCurrent
ChargingVoltage
BatteryStatus
Unsigned
integer
mAh or 10
mWh
Unsigned
integer
min
min
min
mA
mV
Unsigned
integer
Unsigned
integer
Unsigned
integer
Unsigned
integer
0x16
0x17
Hex
2
2
0x0000
0
0xdbff
–
0
–
–
R/W CycleCount
Unsigned
integer
65,535
0x18
R/W DesignCapacity
Integer
2
0
32,767
4400 or 6336 mAh or 10
mWh
0x19
0x1a
0x1b
R/W DesignVoltage
R/W SpecificationInfo
R/W ManufactureDate
Integer
Hex
2
2
2
7000
0x0000
–
18,000
0xffff
14,400
0x0031
0
mV
–
Unsigned
integer
65,535
–
0x1c
0x20
R/W SerialNumber
Hex
2
0x0000
–
0xffff
–
0
–
–
R/W ManufacturerName
String
20 + 1
Texas
Instruments
0x21
R/W DeviceName
String
20 + 1
–
–
bq20z60 or
bq20z65
–
0x22
0x23
0x2f
R/W DeviceChemistry
R/W ManufacturerData
R/W Authenticate
String
String
String
4 + 1
14 + 1
20 + 1
2
–
–
–
0
–
LION
–
–
–
–
–
–
–
–
0x3c
R
R
R
R
CellVoltage4
CellVoltage3
CellVoltage2
CellVoltage1
Unsigned
integer
65,535
mV
0x3d
0x3e
0x3f
Unsigned
integer
2
2
2
0
0
0
65,535
65,535
65,535
–
–
–
mV
mV
mV
Unsigned
integer
Unsigned
integer
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Appendix B
SLUU386–January 2010
Extended SBS Commands
The extended SBS commands are only available when the bq20z60-R1/bq20z65-R1 device is in unsealed
or full access mode, unless otherwise noted.
Related Variables:
•
•
•
•
SBS:ManufacturerAccess(0x00):Seal Access(0x0020)
SBS:OperationStatus(0x54)[SS],[FAS]
SBS:UnSealKey(0x60)
SBS:FullAccessKey(0x61)
B.1 AFEData (0x45)
This read-block function returns a string of 11 data bytes + 1 length byte. The first 9 bytes are the AFE
memory map followed by 2 bytes of the internal bq20z60-R1/bq20z65-R1 AFE_Fail_Counter.
Table B-1. AFEData
Data
Byte
0
Name
Format
AFE
AFE Status
Hex
1
AFE Output
2
AFE State
3
AFE Function
AFE Cell Select
AFE OLV
4
5
6
AFE OLT
7
AFE SCC
8
AFE SCD
bq20z60-
R1/bq20z65-
R1
9
Internal AFE_Fail_Counter high byte
Internal AFE_Fail_Counter low byte
10
11
String Length Byte
Related Variables:
•
•
DF:2nd Level Safety:AFE Verification(20):AFE Fail Limit(1)
DF:PF Status:AFE Regs(97)
B.2 FETControl (0x46)
This read- or write-word function allows direct control of the FETs for test purposes.
Bit 7
Bit 6
Bit 5
Bit 4
OD
Bit 3
Bit 2
CHG
Bit 1
DSG
Bit 0
FETControl
RSVD
RSVD
RSVD
ZVCHG
RSVD
LEGEND: RSVD = Reserved and must be programmed to 0
Figure B-1. FETControl
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StateOfHealth (0x4f)
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OD— AFE GPOD pin control
0 = Disable GPOD pin (high-Z)
1 = Enable GPOD pin (open drain)
ZVCHG— Zero-volt (pre-charge) charge FET control
0 = Turn OFF pre-charge FET
1 = Turn ON pre-charge FET
CHG— Charge FET Control
0 = Turn OFF CHG FET. CHG FET does not turn off in discharge mode to protect the FET
body diode.
1 = Turn ON CHG FET
DSG— Discharge FET Control
0 = Turn OFF DSG FET. DSG FET does not turn off in charge mode to protect the FET body
diode.
1 = Turn ON DSG FET
B.3 StateOfHealth (0x4f)
This read word function returns the state of health of the battery in % as well as information about the cell
deterioration. The calculation formula depends on the [CapM] flag.
CapM StateOfHealth
0 = FullChargeCapacity / Design Capacity
1 = FullChargeCapacity / Design Energy
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
CLL
Bit 1
DetF
Bit 0
High Byte
Low Byte
RSVD
RSVD
RSVD
RSVD
RSVD
DetW
State of Health %
LEGEND: All values read-only; RSVD = Reserved
Figure B-2. Operation Status
CLL— (Cell Life Limit) 1 = Capacity of the pack fallen below Cell Life Limit threshold
DetW— (Deterioration Warning) 1 = Capacity of the pack fallen below Deterioration Warn Limit
threshold
DetF— (Deterioration Fault) 1 = Capacity of the pack fallen below Deterioration Fault Limit threshold
Related Variables:
•
•
•
•
•
•
•
DF:SBS Configuration:Data(48):Design Capacity(22)
DF:SBS Configuration:Data(48):Design Energy(24)
DF: SBS Configuration:Data(48):Deterioration Warn Limit(73)
DF: SBS Configuration:Data(48):Deterioration Fault Limit(74)
DF: SBS Configuration:Data(48):Cell Life Limit(75)
SBS:FullChargeCapacity(0x10)
SBS:BatteryMode(0x03)[CapM]
84
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SafetyAlert (0x50)
B.4 SafetyAlert (0x50)
This read-word function returns indications of pending safety issues, such as running safety timers, or fail
counters that are nonzero but have not reached the required time or value to trigger a SafetyStatus failure.
See 1st Level Protection Features, Section 2.2, for further details.
Related Variable:
•
SBS:SafetyStatus(0x51)
Bit 7
Bit 6
Bit 5
OCD
PF
Bit 4
Bit 3
OCD2
WDF
Bit 2
Bit 1
RSVD
SCC
Bit 0
RSVD
SCD
High Byte
Low Byte
OT1D
CUV
OT1C
COV
OCC
OCC2
AOCD
HWDG
LEGEND: All values read-only
Figure B-3. SafetyAlert
OT1D— 1 = Discharge overtemperature on TS1 alert
OT1C— 1 = Charge overtemperature on TS1 alert
OCD— 1 = Discharge overcurrent alert
OCC— 1 = Charge overcurrent alert
OCD2— 1 = Tier-2 discharge overcurrent alert
OCC2— 1 = Tier-2 charge overcurrent alert
CUV— 1 = Cell undervoltage alert
PF— 1 = Permanent failure alert
COV— 1 = Cell overvoltage alert
HWDG— 1 = Host watchdog alert
WDF— 1 = AFE watchdog alert
AOCD— 1 = AFE discharge overcurrent alert
SCC— 1 = Charge short-circuit alert
SCD— 1 = Discharge short-circuit alert
B.5 SafetyStatus (0x51)
This read word function returns the status of the 1st level safety features.
See 1st Level Protection Features, Section 2.2, for further details.
Related Variables:
•
SBS:SafetyAlert(0x50)
Bit 7
Bit 6
Bit 5
OCD
PF
Bit 4
Bit 3
OCD2
WDF
Bit 2
Bit 1
RSVD
SCC
Bit 0
RSVD
SCD
High Byte
Low Byte
OT1D
CUV
OT1C
COV
OCC
OCC2
AOCD
HWDG
LEGEND: All values read-only; RSVD = Reserved
Figure B-4. SafetyStatus
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PFAlert (0x52)
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OT1D— 1 = Discharge overtemperature on TS1 condition
OT1C— 1 = Charge overtemperature on TS1 condition
OCD— 1 = Discharge overcurrent condition
OCC— 1 = Charge overcurrent condition
OCD2— 1 = Tier-2 discharge overcurrent condition
OCC2— 1 = Tier-2 charge overcurrent condition
CUV— 1 = Cell undervoltage condition
COV— 1 = Cell overvoltage condition
PF— 1 = Permanent failure condition.
HWDG— 1 = Host watchdog condition
WDF— 1 = AFE watchdog condition
AOCD— 1 = AFE discharge overcurrent condition
SCC— 1 = Charge short-circuit condition
SCD— 1 = Discharge short-circuit condition
B.6 PFAlert (0x52)
This read-word function returns indications of pending safety issues, such as running safety timers that
have not reached the required time to trigger a PFAlert failure.
See 2nd Level Protection Features, Section 2.3, for further details.
Bit 7
FBF
DFF
Bit 6
Bit 5
SUV
Bit 4
Bit 3
Bit 2
Bit 1
AFE_P
SOV
Bit 0
ACE_C
PFIN
High Byte
Low Byte
RSVD
DFETF
SOPT1
CIM_R
SOCD
SOT1D
SOCC
SOT1C
CFETF
LEGEND: All values read-only; RSVD = Reserved
Figure B-5. PFAlert
FBF— 1 = Fuse Blow Failure alert
SUV— 1 = Safety Undervoltage permanent failure alert
SOPT1— 1 = Open Thermistor, TS1, permanent failure alert
SOCD— 1 = Discharge Safety Overcurrent permanent failure alert
SOCC— 1 = Charge Safety-Overcurrent permanent failure alert
AFE_P— 1 = Periodic AFE Communications permanent failure alert
AFE_C— 1 = Permanent AFE Communications failure alert
DFF— 1 = Data Flash Fault permanent failure alert
DFETF— 1 = Discharge-FET-Failure permanent failure alert
CFETF— 1 = Charge-FET-Failure permanent failure alert
CIM_R— 1 = Cell-Imbalance (At Rest method) permanent failure alert
SOT1D— 1 = Discharge Safety Overtemperature on TS1 permanent failure alert
SOT1C— 1 = Charge Safety Overtemperature on TS1 permanent failure alert
Extended SBS Commands
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PFStatus (0x53)
SOV— 1 = Safety-Overvoltage permanent failure alert
PFIN— 1 = External Input Indication of permanent failure alert
Related Variables:
•
•
•
•
DF:Configuration:Registers(64):Permanent Fail Cfg(6)
SBS:PFAlert2(0x6a)
SBS:PFStatus(0x53)
SBS:PFStatus2(0x6b)
B.7 PFStatus (0x53)
The permanent failure status register indicates the source of the bq20z60-R1/bq20z65-R1
permanent-failure condition.
Any new permanent failure is added to Saved PF Flags 1..2 register to show all permanent failures that
have occurred.
See 2nd Level Protection Features, Section 2.3, for further details.
Bit 7
FBF
DFF
Bit 6
Bit 5
SUV
Bit 4
Bit 3
Bit 2
Bit 1
AFE_P
SOV
Bit 0
AFE_C
PFIN
High Byte
Low Byte
RSVD
DFETF
SOPT1
CIM_R
SOCD
SOT1D
SOCC
SOT1C
CFETF
LEGEND: All values read-only; RSVD = Reserved
Figure B-6. PFStatus
FBF— 1 = Fuse Blow Failure
SUV— 1 = Safety Undervoltage permanent failure
SOPT1— 1 = Open Thermistor on TS1 permanent failure
SOCD— 1 = Discharge Safety Overcurrent permanent failure
SOCC— 1 = Charge Safety-Overcurrent permanent failure
AFE_P— 1 = Periodic AFE Communications permanent failure
AFE_C— 1 = Permanent AFE Communications failure
DFF— 1 = Data Flash Fault permanent failure
DFETF— 1 = Discharge-FET-Failure permanent failure
CFETF— 1 = Charge-FET-Failure permanent failure
CIM_R— 1 = Cell-Imbalance (At Rest method) permanent failure
SOT1D— 1 = Discharge Safety Overtemperature on TS1 permanent failure
SOT1C— 1 = Charge Safety Overtemperature on TS1 permanent failure
SOV— 1 = Safety-Overvoltage permanent failure
PFIN— 1 = External Input Indication of permanent failure
Related Variables:
•
•
•
•
•
DF:Configuration:Registers(64):Permanent Fail Cfg 1(6),Permanent Fail Cfg 2(8)
DF:PF Status:Device Status Data(96):Saved PF Flags 1(0),Saved PF Flags 2(2)
DF:PF Status:Device Status Data(96):Saved 1st PF Flag 1(32), Saved 1st PF Flag 2(34)
SBS:PFAlert(0x52)
SBS:PFAlert2(0x6a)
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OperationStatus (0x54)
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•
SBS:PFStatus2(0x6b)
B.8 OperationStatus (0x54)
This read-word function returns the current operation status of the bq20z60-R1/bq20z65-R1.
Bit 7
PRES
WAKE
Bit 6
FAS
DSG
Bit 5
SS
Bit 4
CSV
Bit 3
RSVD
DSGIN
Bit 2
Bit 1
RSVD
VOK
Bit 0
RSVD
QEN
High Byte
Low Byte
LDMD
R_DIS
XDSG
XDSGI
LEGEND: All values read-only; RSVD = Reserved
Figure B-7. OperationStatus
PRES— 1 = PRES is low, indicating that the system is present (battery inserted).
FAS— 0 = Full access security mode
SS— 1 = Sealed security mode
CSV— 1 = Data flash checksum value has been generated
LDMD— Load mode for Impedance Track modeling. 0 = constant current, 1 = constant power
WAKE— 1 = bq20z60-R1/bq20z65-R1 WAKE mode
DSG— Replica of the SBS:BatteryStatus(0x16)[DSG] flag.
XDSG— 1 = Discharge fault
XDSGI— 1 = Discharge disabled due to a current issue
DSGIN— 1 = Discharge inhibited due to a high temperature issue
R_DIS— 1 = Ra Table resistance updates are disabled
VOK— 1 = Voltages are OK for a QMAX update
QEN— 1 = QMAX updates are enabled
B.9 ChargingStatus (0x55)
This read-word function returns the current status of the charging functions.
Bit 7
Bit 6
CHSUSP
CB
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
ST2CHG
OC
Bit 0
High Byte
Low Byte
XCHG
RSVD
PCHG
PCMTO
MCHG
CMTO
LTCHG
OCHGV
ST1CHG
OCHGI
HTCHG
XCHGLV
LEGEND: All values read-only
Figure B-8. ChargingStatus
XCHG— 1 = Charging disabled
CHGSUSP— 1 = Charging suspended
PCHG— 1 = Precharging
MCHG— 1 = Maintenance charging
LTCHG— 1 = Low temperature charging
ST1CHG— 1 = Standard temperature charging 1
ST2CHG— 1 = Standard temperature charging 2
HTCHG— 1 = High temperature charging
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ResetData (0x57)
CB— 1 = Cell balancing in progress
PCMTO— 1 = Precharge timeout fault
CMTO— 1 = Charge timeout fault
OCHGV— 1 = Overcharge voltage fault
OCHGI— 1 = Overcharge current fault
OC— 1 = Overcharge fault
XCHGLV— 1 = Battery is depleted
B.10 ResetData (0x57)
This read-word function returns the number of partial resets (low byte) and full resets (high byte) the
device has experienced.
Table B-2. ResetData
SBS
Cmd.
Size in Min
Bytes Value Value Value
Max
Default
Mode Name
ResetData
Byte
Contents
Format
Unit
0x57
R
Low byte
High byte
Partial resets
Full resets
Unsigned integer
Unsigned integer
1
1
0
0
255
255
–
–
–
–
B.11 WDResetData (0x58)
This read-word function returns the number of watchdog resets the device has experienced.
Table B-3. WDResetData
SBS
Cmd.
Size in
Bytes
Min
Max
Default
Mode
Name
Format
Unit
Value Value Value
0x58
R
WDResetData
Unsigned integer
2
0
65,53
5
–
–
B.12 PackVoltage (0x5a)
This read-word function returns an unsigned integer value representing the measured voltage from the
AFE PACK pin, in mV, with a range of 0 to 65,535.
Table B-4. PackVoltage
SBS Cmd. Mode
0x5a
Name
Format
Size in Bytes Min Value Max Value
65,535
Default Value Unit
– mV
R
PackVoltage
Unsigned integer
2
0
B.13 AverageVoltage (0x5d)
This read-word function returns an unsigned integer value that approximates a one-minute rolling average
of the sum of the cell voltages in mV, with a range of 0 to 65,535.
Table B-5. AverageVoltage
SBS Cmd. Mode
0x5d
Name
Format
Size in Bytes Min Value Max Value
65,535
Default Value Unit
– mV
R
AverageVoltage Unsigned integer
2
0
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TS1Temperature (0x5e)
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Related Variable:
•
SBS:Voltage(0x09)
B.14 TS1Temperature (0x5e)
This read-block function returns the TS1 temperature reading. In addition to being accessible in full-access
and unsealed modes, this command is also accessible in sealed mode.
Table B-6. TS1Temperature
SBS Cmd. Mode Name
Format
Size in Bytes
Min Value
Max Value
Default Value Unit
– 0.1°C
0x5e TS1Temperature Integer
R
2
–400
1200
B.15 TS2Temperature (0x5f)
This read-block function returns the TS2 temperature reading. In addition to being accessible in full-access
and unsealed modes, this command is also accessible in sealed mode.
Table B-7. TS2Temperature
SBS Cmd. Mode
0x5f
Name
Format
Size in Bytes
Min Value
Max Value
Default Value Unit
– 0.1°C
R
TS2Temperature Integer
2
–400
1200
B.16 UnSealKey (0x60)
This read- or write-block command allows the user to change the unseal key for the sealed-to-unsealed
security-state transition. This function is only available when the bq20z60-R1/bq20z65-R1 is in the Full
Access mode, indicated by a cleared [FAS] flag.
The order of the bytes, when entered in ManufacturerAccess, is the reverse of what is written to or read
from the part. For example, if the first and second words of the UnSealKey block read returns 0x1234 and
0x5678, then in ManufacturerAccess, 0x3412 and 0x7856 should be entered to unseal the part.
Table B-8. UnSealKey
SBS Cmd. Mode
0x60 R/W
Name
Format
Size in Bytes Min Value
Max Value
Default Value
Unit
UnSealKey
Hex
4
0x0000 0000 0xffff ffff
–
–
Related Variable:
SBS:OperationStatus(0x54)[FAS]
•
B.17 FullAccessKey (0x61)
This read- or write-block command allows the user to change the full-access security key for the
unsealed-to-full access security-state transition. This function is only available when the
bq20z60-R1/bq20z65-R1 is in the Full Access mode, indicated by a cleared [FAS] flag.
The order of the bytes, when entered in ManufacturerAccess, is the reverse of what is written to or read
from the part. For example, if the first and second words of the FullAccessKey block-read return 0x1234
and 0x5678, then in ManufacturerAccess, 0x3412 and 0x7856 should be entered to put the part in full
access mode.
Table B-9. FullAccessKey
SBS Cmd. Mode
0x61 R/W
Name
Format
Size in Bytes Min Value
Max Value Default Value
Unit
FullAccessKey Hex
4
0x0000 0000 0xffff ffff
–
–
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PFKey (0x62)
Related Variable:
SBS:OperationStatus(0x54)[FAS]
•
B.18 PFKey (0x62)
This read- or write-block command allows the user to change the Permanent Failure Clear key. This
function is only available when the bq20z60-R1/bq20z65-R1 is in the full-access mode, indicated by a
cleared [FAS] flag.
The order of the bytes, when entered in ManufacturerAccess, is the reverse of what is written to or read
from the part. For example, if the first and second words of the PFKey block-read return 0x1234 and
0x5678, then in ManufacturerAccess, 0x3412 and 0x7856 should be entered to clear a permanent failure.
Table B-10. PFKey
SBS Cmd. Mode Name
0x62 R/W PFKey
Format
Size in Bytes
Min Value
Max Value Default Value Unit
Hex
4
0x0000 0000 0xffff ffff
–
–
Related Variable:
SBS:OperationStatus(0x54)[FAS]
•
B.19 AuthenKey3 (0x63)
This read- or write-block command stores byte 12 to byte 15 of the 16-byte-long authentication key. This
function is only available when the bq20z60-R1/bq20z65-R1 is in the full-access mode, indicated by a
cleared [FAS] flag.
Table B-11. AuthenKey3
SBS Cmd. Mode
0x63 R/W
Name
Format
Size in Bytes Min Value
Max Value
Default Value Unit
0x1032 5476
AuthenKey3
Hex
4
0x0000 0000 0xffff ffff
–
Related Variables:
•
•
•
SBS:AuthenKey2(0x64)
SBS:AuthenKey1(0x65)
SBS:AuthenKey0(0x66)
B.20 AuthenKey2 (0x64)
This read- or write-block command stores byte 8 to byte 11 of the 16-byte-long authentication key. This
function is only available when the bq20z60-R1/bq20z65-R1 is in the full-access mode, indicated by a
cleared [FAS] flag.
Table B-12. AuthenKey2
SBS Cmd. Mode
0x64 R/W
Name
Format
Size in Bytes Min Value
Max Value
Default Value
Unit
AuthenKey2
Hex
4
0x0000 0000 0xffff ffff
0x98ab dcfe
–
Related Variables:
•
•
•
SBS:AuthenKey3(0x63)
SBS:AuthenKey1(0x65)
SBS:AuthenKey0(0x66)
B.21 AuthenKey1 (0x65)
This read- or write-block command stores byte 4 to byte 7of the 16-byte-long authentication key. This
function is only available when the bq20z60-R1/bq20z65-R1 is in the full-access mode, indicated by a
cleared [FAS] flag.
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AuthenKey0 (0x66)
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Table B-13. AuthenKey1
SBS Cmd. Mode
0x65 R/W
Name
Format
Size in Bytes Min Value
Max Value
Default Value
Unit
AuthenKey1
Hex
4
0x0000 0000 0xffff ffff
0xdfce ab89
–
Related Variables:
•
•
•
SBS:AuthenKey3(0x63)
SBS:AuthenKey2(0x64)
SBS:AuthenKey0(0x66)
B.22 AuthenKey0 (0x66)
This read- or write-block command stores byte 0 to byte 3 of the 16-byte-long authentication key. This
function is only available when the bq20z60-R1/bq20z65-R1 is in the full-access mode, indicated by a
cleared [FAS] flag.
Table B-14. AuthenKey0
SBS Cmd. Mode
0x66 R/W
Name
Format
Size in Bytes Min Value
Max Value
Default Value
Unit
AuthenKey0
Hex
4
0x0000 0000 0xffff ffff
0x6745 2301
–
Related Variables:
•
•
•
SBS:AuthenKey3(0x63)
SBS:AuthenKey2(0x64)
SBS:AuthenKey1(0x65)
B.23 SafetyAlert2 (0x68)
This read-word function returns indications of pending safety issues, such as running safety timers, or fail
counters that are nonzero but have not reached the required time or value to trigger a SafetyStatus failure.
See 1st Level Protection Features, Section 2.2, for further details.
Table B-15. SafetyAlert2
SBS Cmd. Mode
0x68
Name
Format
Size in Bytes Min Value
0x0000
Max Value
Default Value
Unit
R
SafetyAlert2
Hex
2
0x0003
–
–
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
RSVD
OT2D
Bit 0
RSVD
OT2C
High Byte
Low Byte
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
LEGEND: All values read-only. RSVD = Reserved
Figure B-9. SafetyAlert2
OT2D— 1 = Discharge overtemperature alert on TS2
OT2C— 1 = Charge overtermperature alert on TS2
Related Variables:
•
SBS:SafetyStatus2(0x69)
B.24 SafetyStatus2 (0x69)
This read-word function returns indications of pending safety issues that have not reached the required
time or value to trigger a SafetyStatus failure.
See 1st Level Protection Features, Section 2.2, for further details.
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PFAlert2 (0x6a)
Table B-16. SafetyStatus2
SBS Cmd. Mode
0x69
Name
Format
Size in Bytes Min Value
Max Value
Default Value
Unit
R
SafetyStatus2 Hex
2
0x0000
0x0003
–
–
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
RSVD
OT2D
Bit 0
RSVD
OT2C
High Byte
Low Byte
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
LEGEND: All values read-only. RSVD = Reserved
Figure B-10. SafetyStatus2
OT2D— 1 = Discharge overtemperature condition on TS2
OT2C— 1 = Charge overtermperature condition on TS2
Related Variables:
•
SBS:SafetyAlert2(0x68)
B.25 PFAlert2 (0x6a)
This read-word function returns indications of pending safety issues that have not reached the required
time or value to trigger a permanent failure.
See 2nd Level Protection Features, Section 2.3, for further details.
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
RSVD
SOPT2
Bit 2
RSVD
SOT2D
Bit 1
RSVD
SOT2C
Bit 0
High Byte
Low Byte
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
CIM_A
LEGEND: All values read-only. RSVD = Reserved
Figure B-11. PFAlert2
CIM_A— 1 = Cell-Imbalance (Active method) permanent failur alert
SOT2D— 1 = Discharge Safety Overtemperature on TS2 permanent failure alert
SOT2C— 1 = Charge Safety Overtemperature in TS2 permanent failure alert
SOPT2— 1 = Open Thermistor on TS2 permanent failure alert
Related Variables:
•
•
•
DF:Configuration:Registers(64):Permanent Fail Cfg(6)
SBS:PFAlert(0x52)
SBS:PFStatus2(0x6b)
B.26 PFStatus2 (0x6b)
The permanent failure status register indicates the source of the bq20z60-R1/bq20z65-R1 permanent
failure condition.
Any new permanent failure is added to Saved PF Flags register to show all permanent failures that have
occurred.
See 2nd Level Protection Features, Section 2.3, for further details.
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
RSVD
SOPT2
Bit 2
RSVD
SOT2D
Bit 1
RSVD
SOT2C
Bit 0
High Byte
Low Byte
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
CIM_A
LEGEND: All values read-only. RSVD = Reserved
Figure B-12. PFStatus2
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ManufBlock1..4 (0x6c..0x6f)
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CIM_A— 1 = Cell-Imbalance (Active method) permanent failure
SOT2D— 1 = Discharge Safety Overtemperature on TS2 permanent failure
SOT2C— 1 = Charge Safety Overtemperature in TS2 permanent failure
SOPT2— 1 = Open Thermistor on TS2 permanent failure
Related Variables:
•
•
•
•
•
•
DF:Configuration:Registers(64):Permanent Fail Cfg(6)
DF:PF Status:Device Status Data(96):Saved PF Flags2(2)
DF:PF Status:Device Status Data(96): Saved 1st PF Flag 2(34)
SBS:PFAlert(0x52)
SBS:PFStatus(0x53)
SBS:PFAlert2(0x6a)
B.27 ManufBlock1..4 (0x6c..0x6f)
These read/write commands are used to access four 20-byte locations, ManufBlock1..4 that contain
manufacturer data. These commands are available in sealed and unsealed modes. See the
bq20z60-R1/bq20z65-R1 data sheet (SLUS877, SLUS878) for allowable number of write cycles.
Table B-17. ManufBlock1..4
SBS Cmd. Mode
Name
Format
String
String
String
String
Size in Bytes
Min Value
Max Value
Default Value Unit
0x6c
0x6d
0x6e
0x6f
R/W
R/W
R/W
R/W
ManufBlock1
ManufBlock2
ManufBlock3
ManufBlock4
20
20
20
20
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Related Variables:
DF:System Data:Manufacturer Info(58):Manuf. Block 1..4(32..95)
•
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ManufacturerInfo (0x70)
B.28 ManufacturerInfo (0x70)
This read/write block function returns the data stored in Manuf. Info where byte 0 is the MSB with a
maximum length of 31 data + 1 length byte. This command is also accessible in Sealed mode. See the
bq20z60-R1/bq20z65-R1 data sheet (SLUS801A, SLUS800) for allowable number of write cycles.
Table B-18. ManfacturerInfo
SBS Cmd. Mode
0x70 R/W
Name
Format
Size in Bytes
Min Value
Max Value
Default Value Unit
ManufacturerInfo String
31 +1
–
–
–
–
Related Variables:
•
•
DF:System Data:Manufactuer Info(58):Manuf. Info 0(0)
SBS:OperationStatus(0x54)[SS],[FAS]
B.29 SenseResistor (0x71)
This read or write word command allows the user to change the sense resistor value used in μΩ. The
bq20z60-R1/bq20z65-R1 automatically updates the associated calibration data on receipt of a new sense
resistor value.
Table B-19. SenseResistor
SBS Cmd. Mode Name
Format
Size in Bytes Min Value Max Value
65,535
Default Value
Unit
0x71
R/W
SenseResistor Unsigned
integer
2
0
10,000
μΩ
B.30 TempRange (0x72)
This read-word function returns the present temperature range in effect.
Bit 7
Bit 6
Bit 5
RSVD
TR5
Bit 4
RSVD
TR4
Bit 3
RSVD
TR3
Bit 2
Bit 1
Bit 0
High Byte
Low Byte
RSVD
RSVD
RSVD
RSVD
RSVD
TR2A
RSVD
TR2
RSVD
TR1
LEGEND: All values read-only. RSVD = Reserved
Figure B-13. TempRange
•
•
•
•
•
•
TR1 – 1 = temperature range 1: Temperature < JT1
TR2 – 1 = temperature range 2: JT1 < Temperature < JT2
TR2A – 1 = temperature range 3: JT2 < Temperature < JT2a
TR3 – 1 = temperature range 4: JT2a < Temperature < JT3
TR4 – 1 = temperature range 5: JT3 < Temperature < JT4
TR5 – 1 = temperature range 6: JT4 < Temperature
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LifetimeData1 (0x73)
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B.31 LifetimeData1 (0x73)
This read-block function returns the lifetime data, including lifetime temperature samples.
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LifetimeData2 (0x74)
Table B-20. LifetimeData1
SBS Cmd. Mode
Name
Format
Size in Bytes
Min Value
Max Value
Default Value Unit
0x73
R
LifetimeData1
String
32 + 1
–
–
–
–
Table B-21. LifetimeData1 Block Format
Byte
0
Data
Byte
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Data
Lifetime Temp Max
Lifetime Max Chg Power
1
2
Lifetime Min Temp
Lifetime Max Dsg Power
3
4
Lifetime Max Cell Voltage
Lifetime Min Cell Voltage
Lifetime Max Pack Voltage
Lifetime Min Pack Voltage
Lifetime Max Chg Current
Lifetime Max Dsg Current
Lifetime Max Avg Dsg Current
Lifetime Max Avg Dsg Power
Lifetime Avg Temp
5
6
7
8
9
10
11
12
13
14
15
LT Temp Samples
-
B.32 LifetimeData2 (0x74)
This read-block function returns second part of the lifetime data including OT and OV event count and
duration.
Table B-22. LifetimeData2
SBS Cmd. Mode
0x74
Name
Format
Size in Bytes
Min Value
Max Value
Default Value Unit
R
LifetimeData2
String
8 + 1
–
–
–
–
Table B-23. LifetimeData2 Block Format
Byte
Data
0
1
2
3
4
5
6
7
OT Event Count
OT Event Duration
OV Event Count
OV Event Duration
B.33 DataFlashSubClassID (0x77)
This write word function sets the bq20z60-R1/bq20z65-R1 data flash subclass, where data can be
accessed by following the DataFlashSubClass1..8 commands.
See Accessing Data Flash, Section C.1, for further information.
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DataFlashSubClassPage1..8 (0x78..0x7f)
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A NACK is returned to this command if the value of the class is outside of the allowed range. The
subclasses are defined in the data flash.
Table B-24. DataFlashSubClassID
SBS Cmd.
Mode
Name
Format
Size in Bytes
Min Value
Max Value
Default Value
Unit
0x77
W
DataFlashSubClas Hex
sID
2
0x0000
0xffff
–
–
Related Variable:
SBS:DataFlashSubClassPage1..8(0x78..0x7f)
•
B.34 DataFlashSubClassPage1..8 (0x78..0x7f)
These commands are used to access the consecutive 32-byte pages of each subclass.
DataFlashSubClassPage1 gets bytes 0 to 31 of the subclass, DataFlashSubClassPage2 gets bytes 32 to
63, and so on.
NOTE: Any DF location deemed reserved responds with a NACK unless the
bq20z60-R1/bq20z65-R1 is in the correct security state to allow access.
Table B-25. DataFlashSubClass1..8
SBS
Mode
Name
Format Size in Bytes
Subclass Offset
Subclass Offset Default Value Unit
Cmd.
0x78
0x79
0x7a
0x7b
0x7c
0x7d
0x7e
0x7f
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
DataFlashSubClassPage1
DataFlashSubClassPage2
DataFlashSubClassPage3
DataFlashSubClassPage4
DataFlashSubClassPage5
DataFlashSubClassPage6
DataFlashSubClassPage7
DataFlashSubClassPage8
Hex
Hex
Hex
Hex
Hex
Hex
Hex
Hex
32
32
32
32
32
32
32
32
0
31
63
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
32
64
95
96
127
159
191
223
255
128
160
192
224
Related Variable:
SBS:DataFlashSubClassID(0x77)
•
B.35 Extended SBS Command Values
Table B-26. EXTENDED SBS COMMANDS
SBS Cmd
Size in Bytes
Default
Value
Mode Name
Format
Min Value
Max Value
Unit
0x45
0x46
0x4f
R
AFEData
String
Hex
Hex
Hex
Hex
Hex
Hex
Hex
Hex
Hex
11+1
—
—
—
—
—
—
—
—
—
—
—
—
—
ASCII
—
R/W
R
FETControl
StateOfHealth
SafetyAlert
2
2
2
2
2
2
2
2
2
2
0x00
0xff
0x0000
0x0000
0x0000
0x0000
0x0000
0x0000
0x0000
0x0000
0
0xffff
0xffff
0xffff
0xffff
0xffff
0xffff
0xffff
0xffff
65535
—
0x50
0x51
0x52
0x53
0x54
0x55
0x57
0x58
R
—
R
SafetyStatus
PFAlert
—
R
—
R
PFStatus
—
R
OperationStatus
ChargingStatus
ResetData
—
R
—
R
—
R
WDResetData
Unsigned
integer
—
0x5a
R
PackVoltage
Unsigned
integer
2
0
65535
—
mV
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Extended SBS Command Values
Table B-26. EXTENDED SBS COMMANDS (continued)
SBS Cmd
Size in Bytes
Default
Value
Mode Name
Format
Min Value
Max Value
Unit
0x5d
R
AverageVoltage
Unsigned
integer
2
0
65535
—
mV
0x5e
0x5f
R
TS1Temperature
TS2Temperature
UnSealKey
Integer
Integer
Hex
2
2
–400
1200
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
0.1°C
0.1°C
—
R
–400
1200
0x60
0x61
0x62
0x63
0x64
0x65
0x66
0x68
0x69
0x6a
0x6b
0x6c
0x6d
0x6e
0x6f
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
4
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x0000
0x0000
0x0000
0x0000
—
0xffffffff
0xffffffff
0xffffffff
0xffffffff
0xffffffff
0xffffffff
0xffffffff
0x000f
0x000f
0x000f
0x000f
—
FullAccessKey
PFKey
Hex
4
—
Hex
4
—
AuthenKey3
AuthenKey2
AuthenKey1
AuthenKey0
SafetyAlert2
SafetyStatus2
PFAlert2
Hex
4
—
Hex
4
—
Hex
4
—
Hex
4
—
Hex
2
—
R
Hex
2
—
R
Hex
2
—
R
PFStatus2
Hex
2
—
R/W
R/W
R/W
R/W
R/W
R/W
ManufBlock1
ManufBlock2
ManufBlock3
ManufBlock4
ManufacturerInfo
SenseResistor
String
String
String
String
String
20
20
20
20
31+1
2
—
—
—
—
—
—
—
—
—
—
0x70
0x71
—
—
—
Unsigned
integer
0
65535
μΩ
0x72
0x73
0x74
0x77
0x78
0x79
0x7a
0x7b
0x7c
0x7d
0x7e
0x7f
R
TempRange
Hex
String
String
Hex
Hex
Hex
Hex
Hex
Hex
Hex
Hex
Hex
2
32+1
8+1
2
0x0000
—
0xffff
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
R
LifetimeData1
R
LifetimeData2
—
—
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
DataFlashSubClassID
DataFlashSubClassPage1
DataFlashSubClassPage2
DataFlashSubClassPage3
DataFlashSubClassPage4
DataFlashSubClassPage5
DataFlashSubClassPage6
DataFlashSubClassPage7
DataFlashSubClassPage8
0x0000
—
0xffff
—
32
32
—
—
32
—
—
32
—
—
32
—
—
32
—
—
32
—
—
32
—
—
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Appendix C
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CAUTION
Care should be taken when mass programming the data flash space using
previous versions of data flash memory map files (such as *.gg files) to ensure
all public locations are updated correctly.
Data flash can only be updated if Voltage ≥ Flash Update OK Voltage or PackVoltage ≥ Charger
Present. Data flash reads and writes are verified according to the method detailed in 2nd Level Protection
Features, Section 2.3 of this technical reference.
Note: Data flash updates are disabled when the [PF] SafetyStatus flag is set.
C.1 Accessing Data Flash
In different security modes, the data flash access conditions change. See ManufacturerAccess,
Section A.1, and Security, Section 2.9, for further details.
SECURITY MODE
BootROM
NORMAL DATA FLASH ACCESS
N/A
R/W
R/W
N/A
Full Access
Unsealed
Sealed
C.1.1 Data Flash Interface
The bq20z60-R1/bq20z65-R1 data flash is organized into subclasses where each data flash variable is
assigned an offset within its numbered subclass. For example: the Pre-chg Temp threshold location is
defined as:
•
•
•
Class = Charge Control
SubClass = Pre-Charge Cfg = 33
Offset = 2
Note: Data flash commands are NACKed if the bq20z60-R1/bq20z65-R1 is in sealed mode ([SS] flag is
set).
Each subclass can be addressed individually by using the DataFlashSubClassID command, and the data
within each subclass is accessed by using the DataFlashSubClassPage1..8 commands.
Reading and writing subclass data are block operations which are each 32 bytes long. Data can be written
in shorter block sizes, however. The final block in one subclass can be shorter than 32 bytes, so care
must be taken not to write over the subclass boundary. None of the values written are bounded by the
bq20z60-R1/bq20z65-R1, and the values are not rejected by the gas gauge. Writing an incorrect value
may result in hardware failure due to firmware program interpretation of the invalid data. The data written
is persistent, so a power-on reset does not resolve the fault.
Related Variables:
•
•
SBS:DataFlashSubClassID(0x77)
SBS:DataFlashSubClassPage1..8(0x78..0x7f)
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C.1.2 Reading a SubClass
Information required:
•
•
•
SubClassID
Number of bytes in the subclass
Variable Offset
Procedure:
1. Write the SubClassID to bq20z60-R1/bq20z65-R1 using DataFlashSubClassID command.
2. Read a block of data using DataFlashSubClassPage1..8 command. A subclass can hold up to 256
bytes of data, but subclass data can only be read in 32-byte-long data blocks. The
DataFlashSubClassPage1 command reads only the first 32 bytes in a subclass, the
DataFlashSubClassPage2 command reads the second 32 bytes in a subclass, and so on. For example
if the subclass has 40 bytes, DataFlashSubClassPage1 + DataFlashSubClassPage2 is needed to read
the whole subclass.
C.1.3 Writing a SubClass
Information required:
•
•
•
SubClassID
Number of bytes in the subclass
32 bytes of initialized data to be written. Fewer than 32 bytes is acceptable if a subclass contains less
than 32 bytes in the last block.
Procedure:
1. Write the SubClassID to bq20z60-R1/bq20z65-R1 using DataFlashSubClassID command.
2. Write a block of data using DataFlashSubClassPage1..8 command. A subclass can hold up to 256
bytes of data, but subclass data can only be write in 32 byte long data blocks. The
DataFlashSubClassPage1 command writes only the first 32 bytes in a subclass, the
DataFlashSubClassPage2 command writes the second 32 bytes in a subclass, and so on. For
example, if the subclass has 40 bytes and data in offset 34 of the subclass must be changed, use
DataFlashSubClassPage2 to write data from bytes 33–40 of the subclass.
C.1.4 Example
To write the value of Term Voltage to a value of 8.7 V the following sequence is used.
Read complete Gas Gauging-IT Config subclass (SubclassID = 80) into RAM:
•
Write Subclass ID
–
–
SMB Slave Address (0x16)
SMB CMD 0x77 with 0x0050 as data (=80 decimal)
•
Read Subclass (two blocks are needed, because it is over 32 bytes long)
–
–
–
SMBSlave Address (0x16)
SMB CMD 0x78 receiving 32 bytes of data
SMB CMD 0x79 receiving 32 bytes of data
Overwrite offset 45 of received data with 8.7 V:
Update offset 45 of second block with 0x21fc (=8700 decimal)
Write the complete subclass back to the bq20z60-R1/bq20z65-R1:
•
•
Write Subclass ID
–
–
SMB Slave Address (0x16)
SMB CMD 0x77 with 0x0050 as data
•
Write Subclass
–
–
–
SMB Slave Address (0x17)
SMB CMD 0x78 with 32 bytes of data
SMB CMD 0x79 with 32 bytes of data
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Alternatively, only the required block rather than the full subclass can be accessed.
Read required block of Gas Gauging-IT Config subclass (SubclassID = 80) into RAM:
•
Write Subclass ID
–
–
SMB Slave Address (0x17)
SMB CMD 0x77 with 0x0050 as data (=80 decimal)
•
Read Subclass (second block is needed, because its offset is 45)
–
–
SMB Slave Address (0x16)
SMB CMD 0x79 receiving 32 bytes of data
Overwrite offset (45 – 32 = 13) of received data with 8.7 V:
Update offset 45 with 0x21fc (=8700 decimal)
Write the updated block back to the bq20z60-R1/bq20z65-R1:
•
•
Write Subclass ID
SMB Slave Address (0x17) SMB CMD 0x77 with 0x0050 as data
Write Subclass
–
•
–
–
SMB Slave Address (0x17)
SMB CMD 0x79 with 32 bytes of data
C.2 1st Level Safety Class
C.2.1 Voltage (Subclass 0)
C.2.1.1 LT COV Threshold (Offset 0)
When the bq20z60-R1/bq20z65-R1 is operating in the low temperature range (see Section 2.1 "JEITA
Temperature Ranges"), it sets the [COV] flag in SafefyAlert if any CellVoltage4..1 is equal to or higher
than the LT COV Threshold for a period of time set by COV Time.
Table C-1. LT COV Threshold
Size in
Bytes
Subclass ID
Subclass Name Offset
Voltage
Name
Format
Min Value Max Value Default Value Unit
3700 5000 4300 mV
0
0
LT COV
Integer
2
Threshold
Related Variables:
•
•
•
•
•
•
•
DF:1st Level Safety:Voltage(0):LT COV Recovery(2)
DF:1st Level Safety:Voltage(0):COV Time(12)
SBS:CellVoltage4(0x3c)
SBS:CellVoltage3(0x3d)
SBS:CellVoltage2(0x3e)
SBS:CellVoltage1(0x3f)
SBS:SafetyAlert(0x50)[COV]
C.2.1.2 LT COV Recovery (Offset 2)
When the q20z60/bq20z65 is operating in the low temperature range, it recovers from a cell overvoltage
condition if all cell voltages are lower than the LT COV Recovery threshold level.
Table C-2. LT COV Recovery
Subclass
Name
Default
Value
Subclass ID
Offset
Name
Format
Size in Bytes Min Value Max Value
4400
Unit
0
Voltage
2
LT COV
Integer
2
0
4100
mV
Recovery
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Related Variables:
•
•
•
•
•
•
•
DF:1st Level Safety:Voltage(0):LT COV Threshold(0)
SBS:CellVoltage4(0x3c)
SBS:CellVoltage3(0x3d)
SBS:CellVoltage2(0x3e)
SBS:CellVoltage1(0x3f)
SBS:SafetyStatus(0x51)[COV]
SBS:TempRange(0x72)
C.2.1.3 ST COV Threshold (Offset 4)
When the bq20z60-R1/bq20z65-R1 is operating in the standard temperature range 1 or 2 (see Chapter 2),
it sets the [COV] flag in SafefyAlert if any CellVoltage4..1 is equal to or higher than the ST
COV Threshold for a period of COV Time.
Table C-3. ST COV Threshold
Size in
Bytes
Subclass ID
Subclass Name Offset
Voltage
Name
Format
Min Value Max Value Default Value Unit
3700 5000 4500 mV
0
4
ST COV
Integer
2
Threshold
Related Variables:
•
•
•
•
•
•
•
•
DF:1st Level Safety:Voltage(0):ST COV Recovery(6)
DF:1st Level Safety:Voltage(0):COV Time(12)
SBS:CellVoltage4(0x3c)
SBS:CellVoltage3(0x3d)
SBS:CellVoltage2(0x3e)
SBS:CellVoltage1(0x3f)
SBS:SafetyAlert(0x50)[COV]
SBS:TempRange(0x72)
C.2.1.4 ST COV Recovery (Offset 6)
When the bq20z60-R1/bq20z65-R1 is operating in the standard temperature range 1 or 2 (see Chapter 2),
it recovers from a cell overvoltage condition if all cell voltages are lower than the ST COV Recovery
threshold level.
Table C-4. ST COV Recovery
Subclass
Name
Default
Value
Subclass ID
Offset
Name
Format
Size in Bytes Min Value Max Value
4400
Unit
0
Voltage
6
ST COV
Integer
2
0
4300
mV
Recovery
Related Variables:
•
•
•
•
•
•
DF:1st Level Safety:Voltage(0):ST COV Threshold(4)
SBS:CellVoltage4(0x3c)
SBS:CellVoltage3(0x3d)
SBS:CellVoltage2(0x3e)
SBS:CellVoltage1(0x3f)
SBS:SafetyStatus(0x51)[COV]
C.2.1.5 HT COV Threshold (Offset 8)
When the bq20z60-R1/bq20z65-R1 is operating in the high temperature range (see Chapter 2), it sets the
[COV] flag in SafefyAlert if any CellVoltage4..1 is equal to or higher than the HT COV Threshold for a
period of COV Time.
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Table C-5. HT COV Threshold
Size in
Bytes
Subclass ID
Subclass Name Offset
Voltage
Name
Format
Min Value Max Value Default Value Unit
0
8
HT COV
Integer
2
3700
5000
4200
mV
Threshold
Related Variables:
•
•
•
•
•
•
•
DF:1st Level Safety:Voltage(0):HT COV Recovery(10)
DF:1st Level Safety:Voltage(0):COV Time(12)
SBS:CellVoltage4(0x3c)
SBS:CellVoltage3(0x3d)
SBS:CellVoltage2(0x3e)
SBS:CellVoltage1(0x3f)
SBS:SafetyAlert(0x50)[COV]
C.2.1.6 HT COV Recovery (Offset 10)
When the bq20z60-R1/bq20z65-R1 is operating in the high temperature range, it recovers from a cell
overvoltage condition if all cell voltage are lower than the HT COV Recovery threshold level.
Table C-6. HT COV Recovery
Subclass
Name
Default
Value
Subclass ID
Offset
Name
Format
Size in Bytes Min Value Max Value
4400
Unit
mV
0
Voltage
10
HT COV
Integer
2
0
4000
Recovery
Related Variables:
•
•
•
•
•
•
•
DF:1st Level Safety:Voltage(0):HT COV Threshold(8)
SBS:CellVoltage4(0x3c)
SBS:CellVoltage3(0x3d)
SBS:CellVoltage2(0x3e)
SBS:CellVoltage1(0x3f)
SBS:SafetyStatus(0x51)[COV]
SBS:TempRange(0x72)
C.2.1.7 COV Time (Offset 12)
If the [COV] SafetyAlert time period exceeds COV Time the bq20z60-R1/bq20z65-R1 goes into a cell
overvoltage condition. This function is disabled if COV Time is set to 0.
Table C-7. COV Time
Subclass ID
Subclass Name Offset
Voltage 12
Name
Format
Size in Bytes Min Value
Max Value
Default Value
Unit
0
COV
Time
Unsigned integer
1
0
240
2
s
Related Variables:
•
•
•
•
•
•
•
•
•
DF:1st Level Safety:Voltage(0):LT COV Threshold(0)
DF:1st Level Safety:Voltage(0):ST COV Threshold(4)
DF:1st Level Safety:Voltage(0):HT COV Threshold(8)
SBS:Charging Current(0x14)
SBS:Charging Voltage(0x15)
SBS:CellVoltage4(0x3c)
SBS:CellVoltage3(0x3d)
SBS:CellVoltage2(0x3e)
SBS:CellVoltage1(0x3f)
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C.2.1.8 CUV Threshold (Offset 13)
The bq20z60-R1/bq20z65-R1 sets [CUV] in SafetyAlert if any CellVoltage4..1 is equal to or lower than the
CUV Threshold for a period of CUV Time.
Table C-8. CUV Threshold
Subclass
ID
Subclass
Name
Size in
Bytes
Min
Value
Default
Value
Offset
Name
Format
Max Value
Unit
0
Voltage
13
CUV
Integer
2
0
3500
2200
mV
Threshold
Related Variables:
•
•
•
•
•
DF:1st Level Safety:Voltage(0):CUV Time(15)
SBS:CellVoltage4(0x3c)
SBS:CellVoltage3(0x3d)
SBS:CellVoltage2(0x3e)
SBS:CellVoltage1(0x3f)
C.2.1.9 CUV Time (Offset 15)
If [CUV] in the SafetyAlert time period exceeds CUV Time, the bq20z60-R1/bq20z65-R1 goes into a cell
undervoltage condition. This function is disabled if CUV Time is set to 0.
Table C-9. CUV Time
Subclass
ID
Subclass
Name
Size in
Bytes
Min
Value
Default
Value
Offset
Name
Format
Max Value
Unit
0
Voltage
15
CUV Time
Unsigned
integer
1
0
240
2
s
Related Variables:
•
•
•
•
•
•
•
DF:1st Level Safety:Voltage(0):CUV Threshold(13)
SBS:CellVoltage4(0x3c)
SBS:CellVoltage3(0x3d)
SBS:CellVoltage2(0x3e)
SBS:CellVoltage1(0x3f)
SBS:SafetyAlert(0x50)[CUV]
SBS:SafetyStatus(0x51)[CUV]
C.2.1.10 CUV Recovery (Offset 16)
The bq20z60-R1/bq20z65-R1 recovers from a cell undervoltage condition if all CellVoltage4..1 are higher
than the CUV Recovery threshold (and a charge current is detected if the CUV_RECOV_CHG bit is set).
Table C-10. CUV Recovery
Subclass
ID
Subclass
Name
Size in
Bytes
Min
Value
Default
Value
Offset
Name
Format
Max Value
Unit
0
Voltage
16
CUV
Integer
2
0
3600
3000
mV
Recovery
Related Variables:
•
•
•
•
•
•
DF:1st Level Safety:Voltage(0):CUV Threshold(13)
SBS:Charging Current(0x14)
SBS:Charging Voltage(0x15)
SBS:BatteryStatus(0x16)[TDA],[FD]
SBS:CellVoltage4(0x3c)
SBS:CellVoltage3(0x3d)
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•
•
•
•
SBS:CellVoltage2(0x3e)
SBS:CellVoltage1(0x3f)
SBS:SafetyStatus(0x51)[CUV]
SBS:OperationStatus(0x54)[XDSG]
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C.2.2 Current (Subclass 1)
C.2.2.1 OC (1st Tier) Chg (Offset 0)
The bq20z60-R1/bq20z65-R1 sets [OCC] in SafetyAlert if charge Current is equal to or higher than the
OC (1st Tier) Chg threshold for a period of OC (1st Tier) Chg Time.
Table C-11. OC (1st Tier) Chg
Subclass Subclass
Min
Value
Max
Value
Default
Value
Offset
Name
Format
Size in Bytes
Unit
ID
Name
1
Current
0
OC (1st Tier) Chg Integer
2
0
20,000
6000
mA
Related Variables:
•
•
•
DF:1st Level Safety:Current(1):OC (1st Tier) Chg Time(2)
SBS:Current(0x00a)
SBS:SafetyAlert(0x50)[OCC]
C.2.2.2 OC (1st Tier) Chg Time (Offset 2)
If [OCC] in the SafetyAlert time period exceeds the OC (1st Tier) Chg Time time, the
bq20z60-R1/bq20z65-R1 goes into an overcurrent charge condition. This function is disabled if
OC (1st Tier) Chg Time is set to 0.
Table C-12. OC (1st Tier) Chg Time
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value
Offset Name
Format
Default Value Unit
ID
Name
1
Current
2
OC (1st Tier) Chg
Time
Unsigned
integer
1
0
240
2
s
Related Variables:
•
•
•
•
•
DF:1st Level Safety:Current(1):OC (1st Tier) Chg(0)
SBS:Charging Current(0x14)
SBS:Charging Voltage(0x15)
SBS:SafetyAlert(0x50)[OCC]
SBS:SafetyStatus(0x51)[OCC]
C.2.2.3 OC Chg Recovery (Offset 3)
The bq20z60-R1/bq20z65-R1 recovers from an overcurrent charge condition in non-removable battery
mode if AverageCurrent is equal to or lower than the OC Chg Recovery threshold for a duration of
Current Recovery Time. The bq20z60-R1/bq20z65-R1 recovers in removable battery mode by removing
and reinserting the battery pack. On recovery, ChargingCurrent and ChargingVoltage are set to
appropriate values per the charging algorithm.
Table C-13. OC Chg Recovery
Subclass
ID
Subclass
Name
Size in
Bytes
Min
Value
Default
Value
Offset
Name
Format
Max Value
Unit
1
Current
3
OC Chg
Integer
2
–1000
1000
200
mA
Recovery
Related Variables:
•
•
•
•
DF:1st Level Safety:Current(1):OC (1st Tier) Chg(0)
DF:1st Level Safety:Current Recovery Time(16)
DF:Configuration:Registers(64):Operation Cfg B(2)[NR]
SBS:AverageCurrent(0x00b)
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C.2.2.4 OC (1st Tier) Dsg (Offset 5)
The bq20z60-R1/bq20z65-R1 sets [OCD] in SafetyAlert if the discharge Current is equal to or higher than
the OC (1st Tier) Dsg threshold for a period of OC (1st Tier) Dsg Time.
Table C-14. OC (1st Tier) Dsg
Subclass
ID
Subclass
Name
Size in
Bytes
Min
Value
Default
Value
Offset
Name
Format
Max Value
Unit
1
Current
5
OC (1st Tier)
Dsg
Integer
2
0
20,000
6000
mA
Related Variables:
•
•
•
DF:1st Level Safety:Current(1):OC (1st Tier) Dsg Time(7)
SBS:Current(0x00a)
SBS:SafetyAlert(0x50)[OCD]
C.2.2.5 OC (1st Tier) Dsg Time (Offset 7)
If [OCD] in the SafetyAlert time period exceeds OC (1st Tier) Dsg Time, the bq20z60-R1/bq20z65-R1
goes into an overcurrent discharge condition. This function is disabled if OC (1st Tier) Dsg Time is set to
0.
Table C-15. OC (1st Tier) Dsg Time
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value
Default
Value
Offset
Name
Format
Unit
ID
Name
1
Current
7
OC (1st Tier) Dsg
Time
Unsigned
integer
1
0
240
2
s
Related Variables:
•
•
•
•
•
•
DF:1st Level Safety:Current(1):OC (1st Tier) Dsg(5)
SBS:ChargingCurrent(0x14)
SBS:ChargingVoltage(0x15)
SBS:SafetyAlert(0x50)[OCD]
SBS:SafetyStatus(0x51)[OCD]
SBS:OperationStatus(0x54)[XDSG]
C.2.2.6 OC Dsg Recovery (Offset 8)
The bq20z60-R1/bq20z65-R1 recovers from an overcurrent discharge condition in non-removable battery
mode if the AverageCurrent is equal to or lower than the OC Dsg Recovery current level for a duration of
Current Recovery Time.
Table C-16. OC Dsg Recovery
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value
Default
Value
Offset
Name
Format
Unit
ID
Name
1
Current
8
OC Dsg Recovery Integer
2
0
1000
200
mA
Related Variables:
•
•
•
DF:1st Level Safety:Current(1):OC (1st Tier) Dsg(5)
DF:1st Level Safety:Current Recovery Time(16)
DF:Configuration:Registers(64):Operation Cfg B(2)[NR]
C.2.2.7 OC (2nd Tier) Chg (Offset 10)
The bq20z60-R1/bq20z65-R1 sets [OCC2] in SafetyAlert if charge Current is equal to or higher than the
OC (2nd Tier) Chg threshold.
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Table C-17. OC (2nd Tier) Chg
Subclass Subclass
Size in
Format
Max
Value
Default
Value
Offset Name
Min Value
Unit
ID
Name
Bytes
1
Current
10
OC (2nd Tier) Chg Integer
2
0
20,000
8000
mA
Related Variables:
•
•
•
DF:1st Level Safety:Current(1):OC (2nd Tier) Chg Time(12)
SBS:Current(0x00a)
SBS:SafetyAlert(0x50)[OCC2]
C.2.2.8 OC (2nd Tier) Chg Time (Offset 12)
If the [OCC2] SafetyAlert time period exceeds OC (2nd Tier) Chg Time, the bq20z60-R1/bq20z65-R1
goes into an overcurrent charge condition. This function is disabled if OC (2nd Tier) Chg Time is set to 0.
Table C-18. OC (2nd Tier) Chg Time
Subclass Subclass
Size in
Bytes
Min
Value
Default
Value
Offset
Name
Format
Max Value
Unit
ID
Name
1
Current
12
OC (2nd Tier) Chg
Time
Unsigned
integer
1
0
240
0
s
Related Variables:
•
•
•
•
•
DF:1st Level Safety:Current(1):OC (2nd Tier) Chg(10)
SBS:ChargingCurrent(0x14)
SBS:ChargingVoltage(0x15)
SBS:SafetyAlert(0x50)[OCC2]
SBS:SafetyStatus(0x51)[OCC2]
C.2.2.9 OC (2nd Tier) Dsg (Offset 13)
The bq20z60-R1/bq20z65-R1 sets [OCD2] in SafetyAlert if discharge Current is equal to or higher than
the OC (2nd Tier) Dsg overcurrent threshold.
Table C-19. OC (2nd Tier) Dsg
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value
Default
Value
Offset
Name
Format
Unit
ID
Name
1
Current
13
OC (2nd Tier)
Dsg
Integer
2
0
22,000
8000
mA
Related Variables:
•
•
•
DF:1st Level Safety:Current(1):OC (2nd Tier) Dsg Time(15)
SBS:Current(0x00a)
SBS:SafetyAlert(0x50)[OCD2]
C.2.2.10 OC (2nd Tier) Dsg Time (Offset 15)
If [OCD2] in the SafetyAlert time period exceeds OC (2nd Tier) Dsg Time, the bq20z60-R1/bq20z65-R1
goes into an overcurrent discharge condition. This function is disabled if OC (2nd Tier) Dsg Time is set to
0.
Table C-20. OC (2nd Tier) Dsg Time
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value
Default
Value
Offset Name
Format
Unit
ID
Name
1
Current
15
OC (2nd Tier) Dsg Unsigned
Time integer
1
0
240
2
s
110
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Related Variables:
•
•
•
DF:1st Level Safety:Current(1):OC (2nd Tier) Dsg(13)
SBS:Charging Current(0x14)
SBS:Charging Voltage(0x15)
C.2.2.11 Current Recovery Time (Offset 16)
Current Recovery Time sets the minimum time period where AverageCurrent must be below the
overcurrent charge/discharge recovery threshold to recover from an overcurrent charge/discharge
condition.
Table C-21. Current Recovery Time
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value
Default
Value
Offset Name
Format
Unit
ID
Name
1
Current
16
Current Recovery
Time
Unsigned
integer
1
0
240
8
s
Related Variables:
•
•
•
DF:1st Level Safety:Current(1):OC Chg Recovery(3)
DF:1st Level Safety:Current(1):OC Dsg Recovery(8)
SBS:AverageCurrent(0x00b)
C.2.2.12 AFE OC Dsg (Offset 17)
The AFE OC Dsg threshold sets the OLV register of the AFE.
Table C-22. AFE OC Dsg
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value
Default
Value
Offset Name
17 AFE OC Dsg
Format
Unit
ID
Name
1
Current
Hex
1
0x00
0xff
0x12
Bit 7
RSVD
Bit 6
Bit 5
Bit 4
OLV4
Bit 3
OLV3
Bit 2
Bit 1
Bit 0
Low Byte
RSVD
RSVD
OLV2
OLV1
OLV0
LEGEND: RSVD = Reserved and must be programmed to 0
Figure C-1. OLV Register
OLV4, OLV3, OLV2, OLV1, OLV0— Sets the overload voltage threshold of the AFE
0x00–0x1f = sets the voltage threshold between 50 mV and 205 mV in 5 mV steps.
Related Variable:
•
DF:1st Level Safety:Current(1):AFE OC Dsg Time(18)
C.2.2.13 AFE OC Dsg Time (Offset 18)
The AFE OC Discharge Time is programmed into the OLT register of the AFE. If an overcurrent
discharge condition is reported by the AFE, ChargingCurrent is set to 0, [TDA] in BatteryStatus is set,
and [AOCD] in SafetyStatus is set.
Table C-23. AFE OC Dsg Time
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value
Default
Value
Offset Name
Format
Unit
ID
Name
1
Current
18
AFE OC Dsg
Time
Hex
1
0x00
0xff
0x0f
111
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Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Low Byte
RSVD
RSVD
RSVD
RSVD
OLT3
OLT2
OLT1
OLT0
LEGEND: RSVD = Reserved and must be programmed to 0
Figure C-2. OLT Register
OLT3, OLT2, OLT1, OLT0— Sets the overload voltage delay of the AFE
0x00–0x00f sets the overvoltage trip delay between 1ms and 31ms in 2ms steps
=
Related Variables:
•
•
•
•
DF:1st Level Safety:Current(1):AFE OC Dsg(17)
SBS:ChargingCurrent(0x14)
SBS:BatteryStatus(0x16)[TDA]
SBS:SafetyStatus(0x51)[AOCD]
C.2.2.14 AFE OC Dsg Recovery (Offset 19)
The bq20z60-R1/bq20z65-R1 recovers from an overcurrent discharge condition in non-removable battery
mode if AverageCurrent is equal to or lower than the (–)AFE OC Dsg Recovery current level for the
duration of Current Recovery Time.
Table C-24. AFE OC Dsg Recovery
Subclass
Name
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID
Offset
Name
Format
Unit
1
Current
19
AFE OC Dsg Integer
Recovery
2
5
1000
5
mA
Related Variables:
•
•
•
•
DF:1st Level Safety:Current(1):AFE OC Dsg(17)
DF:1st Level Safety:Current Recovery Time(16)
DF:Configuration:Registers(64):Operation Cfg B(2)[NR]
SBS:AverageCurrent(0x00b)
C.2.2.15 AFE SC Chg Cfg (Offset 21)
AFE SC Chg Cfg is programmed into the SCC register of the AFE. AFE SC Chg Cfg sets the
short-circuit-in-charging voltage threshold and the short-circuit-in-charging delay of the AFE.
If the bq20z60-R1/bq20z65-R1 identifies a short-circuit-in-charging situation from the AFE,
ChargingCurrent and ChargingVoltage are set to 0, [TCA] in BatteryStatus is set, and [SCC] in
SafetyStatus is set.
Table C-25. AFE SC Chg Cfg
Subclass
ID
Subclass
Name
Size in
Bytes
Min
Value
Max
Value
Default
Value
Offset Name
Format
Unit
1
Current
21
AFE SC Chg
Cfg
Hex
1
0x00
0xff
0x77
Bit 7
SCCT3
Bit 6
Bit 5
Bit 4
Bit 3
SCCV3
Bit 2
Bit 1
Bit 0
Low Byte
SCCT2
SCCT1
SCCT0
SCCV2
SCCV1
SCCV0
Figure C-3. SCC Register
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SCCT3, SCCT2, SCCT1, SCCT0— Sets the short-circuit delay in charging of the AFE
0x00–0xf = sets the short-circuit-in-charging delay between 0μs and 915μs in 61μs steps
SCCV3, SCCV2, SCCV1, SCCV0— Sets the short-circuit voltage threshold in charging of the AFE
0x00–0xf = sets the short-circuit voltage threshold between 0.1 V and 0.475 V in 25mV steps
Related Variables:
•
•
•
•
•
DF:1st Level Safety:Current(1):AFE SC Recovery(23)
SBS:ChargingCurrent(0x14)
SBS:ChargingVoltage(0x15)
SBS:BatteryStatus(0x16)[TCA]
SBS:SafetyStatus(0x51)[SCC]
C.2.2.16 AFE SC Dsg Cfg (Offset 22)
The AFE SC Dsg Cfg is programmed into the SCD register of the AFE. The AFE SC Dsg Cfg sets the
short-circuit-in-discharging voltage threshold and the short-circuit-in-discharging delay of the AFE.
If the bq20z60-R1/bq20z65-R1 identifies a short-circuit-in-discharging situation from the AFE,
ChargingCurrent and ChargingVoltage are set to 0, [TDA] in BatteryStatus is set, [SCD] in SafetyStatus is
set, and [XDSG] in OperationStatus is set.
Table C-26. AFE SC Dsg Cfg
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value
Default
Value
Offset Name
22 AFE SC Dsg Cfg
Format
Unit
ID
Name
1
Current
Hex
1
0x00
0xff
0x77
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
SCDV3
Bit 2
Bit 1
Bit 0
Low Byte
SCDT3
SCDT2
SCDT1
SCDT0
SCDV2
SCDV1
SCDV0
Figure C-4. SCD Register
SCDT3, SCDT2, SCDT1, SCDT0— Sets the short-circuit delay in discharging of the AFE
0x00–0xf = sets the short-circuit-in-discharging delay between 0 μs and 915 μs in 61-μs steps
SCDV3, SCDV2, SCDV1, SCDV0— Sets the short-circuit voltage threshold in discharging of the AFE
0x00–0xf = sets the short-circuit voltage threshold between 0.1 V and 0.475 V in 25-mV steps
Related Variables:
•
•
•
•
•
•
DF:1st Level Safety:Current(1):AFE SC Recovery(23)
SBS:ChargingCurrent(0x14)
SBS:ChargingVoltage(0x15)
SBS:BatteryStatus(0x16)[TDA]
SBS:SafetyStatus(0x51)[SCD]
SBS:OperationStatus(0x54)[XDSG]
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C.2.2.17 AFE SC Recovery (Offset 23)
The bq20z60-R1/bq20z65-R1 recovers from a short circuit in a charging or discharging condition in
non-removable battery mode if the absolute value of AverageCurrent is equal to or lower than the
AFE SC Recovery current level for the duration of Current Recovery Time. On recovery,
ChargingCurrent and ChargingVoltage are set to their appropriate values per the charging algorithm.
Table C-27. AFE SC Recovery
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value
Default
Value
Offset Name
Format
Unit
ID
Name
1
Current
23 AFE SC Recovery Integer
2
0
200
1
mA
Related Variables:
•
•
•
•
•
DF:1st Level Safety:Current Recovery Time(16)
DF:1st Level Safety:Current(1):AFE SC Chg Cfg(21)
DF:1st Level Safety:Current(1):AFE SC Dsg Cfg(22)
DF:Configuration:Registers(64):Operation Cfg B(2)[NR]
SBS:AverageCurrent(0x00b)
C.2.3 Temperature (Subclass 2)
C.2.3.1 OT1 Chg Threshold (Offset 0)
The bq20z60-R1/bq20z65-R1 goes into an overtemperature charge condition and sets the [OT1C] flag in
SafetyAlert if the pack TS1 Temperature is equal to or higher than the OT1 Chg threshold for a period of
OT1 Chg Time during charging.
Table C-28. OT1 Chg Threshold
Subclass Subclass
Size in Min
Bytes Value Value Value
Max
Default
Offset
Name
Format
Unit
ID
Name
2
Temperature
0
OT1 Chg
Threshold
Integer
2
0
2550 550
0.1°C
Related Variables:
•
•
•
DF:1st Level Safety:Temperature(2):OT1 Chg Time(2)
SBS:TS1Temperature(0x5e)
SBS:SafetyAlert(0x50)[OT1C]
C.2.3.2 OT1 Chg Time (Offset 2)
IThe bq20z60-R1/bq20z65-R1 goes into an overtemperature charge condition and sets the [OT1C] flag in
SafetyStatus if the pack TS1Temperature is equal to or higher than the OT1 Chg Threshold for a period
of OT1 Chg Time during charging. This function is disabled if OT1 Chg Time is set to 0.
Table C-29. OT1 Chg Time
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value
Default
Value
Offset Name
Format
Unit
ID
Name
2
Temperature
2
OT1 Chg
Time
Unsigned
integer
1
0
240
2
s
Related Variables:
•
•
•
•
DF:1st Level Safety:Temperature(2):OT1 Chg Threshold(0)
SBS:TS1 Temperature(0x5e)
SBS:SafetyAlert(0x50)[OT1C]
SBS:SafetyStatus(0x51)[OT1C]
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C.2.3.3 OT1 Chg Recovery (Offset 3)
The bq20z60-R1/bq20z65-R1 recovers from an overtemperature charge condition if TS1Temperature is
equal to or lower than the OT1 Chg Recovery level.
Table C-30. OT1 Chg Recovery
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value
Default
Value
Offset Name
Format
Unit
ID
Name
2
Temperature
3
OT1 Chg
Recovery
Integer
2
0
2550
500
0.1°C
Related Variables:
•
•
•
DF:1st Level Safety:Temperature(2):OT1 Chg Threshold(0)
SBS:TS1 Temperature(0x5e)
SBS:SafetyStatus(0x51)[OT1C]
C.2.3.4 OT2 Chg Threshold (Offset 5)
The bq20z0/bq20z65 goes into an overtemperature charge condition and sets the [OT2C] flag in
SafetyStatus2 if the pack TS2Temperature is equal to or higher than the OT2 Chg Threshold for a period
of OT2 Chg Time during charging.
Table C-31. OT2 Chg Threshold
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value
Default
Value
Offset Name
Format
Unit
ID
Name
2
Temperature
5
OT2 Chg
Threshold
Integer
2
0
2550
550
0.1°C
Related Variables:
•
•
•
DF:1st Level Safety:Temperature(2):OT2 Chg Time(7)
SBS:TS2Temperature(0x5f)
SBS:SafetyAlert2(0x68)[OT2C]
C.2.3.5 OT2 Chg Time (Offset 7)
The bq20z60-R1/bq20z65-R1 goes into an overtemperature discharge condition and sets the [OT2C] flag
in SafetyAlert2 if the pack TS2Temperature is equal to or higher than the OT2 Chg Threshold for a
period of OT2 Chg Time during charging. This function is disabled if OT2 Chg Time is set to 0.
Table C-32. OT2 Chg Time
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value Value
Default
Offset
Name
Format
Unit
ID
Name
2
Temperature
7
OT2 Chg Time
Unsigned integer
1
0
240
2
s
Related Variables:
•
•
•
•
DF:1st Level Safety:Temperature(2):OT2 Chg Threshold (5)
SBS:TS2Temperature(0x5f)
SBS:SafetyAlert2(0x68)[OT2C]
SBS:SafetyStatus2(0x69)[OT2C]
C.2.3.6 OT2 Chg Recovery (Offset 8)
The bq20z60-R1/bq20z65-R1 recovers from an overtemperature charge condition if TS2Temperature is
equal to or lower than the OT2 Chg Recovery level.
115
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Table C-33. OT2 Chg Recovery
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value
Default
Value
Offset
Name
Format
Unit
ID
Name
2
Temperature
8
OT2 Chg
Recovery
Integer
2
0
2550
500
0.1°C
Related Variables:
•
•
•
•
DF:1st Level Safety:Temperature(2):OT2 Chg Threshold(5)
SBS:TS2Temperature(0x5f)
SBS:SafetyAlert2(0x68)[OT2C]
SBS:SafetyStatus2(0x69)[OT2C]
C.2.3.7 OT1 Dsg Threshold (Offset 10)
The bq20z60-R1/bq20z65-R1 goes into an overtemperature discharge condition and sets the [OT1D] flag
in SafetyStatus if the pack TS1Temperature is equal to or higher than the OT1 Dsg Threshold for a
period of OT1 Dsg Time during discharging..
Table C-34. OT1 Dsg Threshold
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value
Default
Value
Offset
Name
Format
Unit
ID
Name
2
Temperature 10
OT1 Dsg
Integer
2
0
2550
600
0.1°C
Threshold
Related Variables:
•
•
•
DF:1st Level Safety:Temperature(2):OT1 Dsg Time(12)
SBS:TS1Temperature(0x5e)
SBS:SafetyAlert(0x50)[OT1D]
C.2.3.8 OT1 Dsg Time (Offset 12)
The bq20z60-R1/bq20z65-R1 goes into an overtemperature discharge condition and sets the [OT1D] flag
in SafetyStatus if the pack TS1Temperature is equal to or higher than the OT1 Dsg Threshold for a
period of OT1 Dsg Time during discharging.
Table C-35. OT1 Dsg Time
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value
Default
Value
Offset
Name
Format
Unit
ID
Name
2
Temperature 12
OT1 Dsg
Time
Unsigned
integer
1
0
240
2
s
Related Variables:
•
•
•
•
•
DF:1st Level Safety:Temperature(2):OT1 Dsg Threshold(10)
DF:Configuration:Registers(64):Operation Cfg B(2)[OTFET]
SBS:TS1Temperature(0x5e)
SBS:SafetyAlert(0x50)[OT1D]
SBS:SafetyStatus(0x51)[OT1D]
C.2.3.9 OT1 Dsg Recovery (Offset 13)
The bq20z60-R1/bq20z65-R1 recovers from an overtemperature discharge condition on TS1 if
TS1Temperature is equal to or lower than the T1 Dsg Recovery.
116
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Table C-36. OT1 Dsg Recovery
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value
Default
Unit
Offset
Name
Format
ID
Name
Value
2
Temperature 13
OT1 Dsg
Recovery
Integer
2
0
2550
550
0.1°C
Related Variables:
•
•
•
DF:1st Level Safety:Temperature(2):OT1 Dsg Threshold(10)
SBS:TS1Temperature(0x5e)
SBS:SafetyStatus(0x51)[OT1D]
C.2.3.10 OT2 Dsg Threshold (Offset 15)
The bq20z60-R1/bq20z65-R1 goes into an overtemperature discharge condition and sets the [OT2D] flag
in SafetyStatus2 if the pack TS2Temperature is equal to or higher than the OT2 Dsg Threshold for a
period of OT2 Dsg Time during discharging..
Table C-37. OT2 Dsg Threshold
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value
Default
Value
Offset
Name
Format
Unit
ID
Name
2
Temperature 15
OT2 Dsg
Integer
2
0
2550
600
0.1°C
Threshold
Related Variables:
•
•
•
•
DF:1st Level Safety:Temperature(2):OT2 Dsg Time(17)
SBS:TS2Temperature(0x5f)
SBS:SafetyAlert2(0x68)[OT2D]
SBS:SafetyStatus2(0x69)[OT2D]
C.2.3.11 OT2 Dsg Time (Offset 17)
The bq20z60-R1/bq20z65-R1 goes into an overtemperature discharge condition and sets the [OT2D] flag
in SafetyStatus2 if the pack TS2Temperature is equal to or higher than the OT2 Dsg Threshold for a
period of OT2 Dsg Time during discharging..
Table C-38. OT2 Dsg Time
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value
Default
Value
Offset
Name
Format
Unit
ID
Name
2
Temperature 17
OT2 Dsg
Time
Unsigned
integer
1
0
240
2
s
Related Variables:
•
•
•
•
DF:1st Level Safety:Temperature(2):OT2 Dsg Threshold(15)
SBS:TS2Temperature(0x5f)
SBS:SafetyAlert2(0x68)[OT2D]
SBS:SafetyStatus2(0x69)[OT2D]
C.2.3.12 OT2 Dsg Recovery (Offset 18)
The bq20z60-R1/bq20z65-R1 recovers from an overtemperature discharge condition on TS2 if
TS2Temperature is equal to or lower than the OT2 Dsg Recovery.
Table C-39. OT2 Dsg Recovery
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value
Default
Value
Offset
Name
Format
Unit
ID
Name
2
Temperature 18
OT2 Dsg
Recovery
Integer
2
0
2550
550
0.1°C
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Related Variables:
•
•
•
DF:1st Level Safety:Temperature(2):OT2 Dsg Threshold(15)
SBS:TS2Temperature(0x5f)
SBS:SafetyStatus2(0x69)[OT2D]
C.2.3.13 Hi Dsg Start Temp (Offset 20)
If Temperature is above Hi Dsg Start Temp when starting discharge then discharge is inhibited. [DSGIN]
flag in OperationStatus is set to indicate this condition.
Table C-40. Hi Dsg Start Temp
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value
Default
Value
Offset
Name
Format
Unit
ID
Name
2
Temperature 20
Hi Dsg
Integer
2
0
1200
600
0.1°C
Start Temp
Related Variables:
•
•
SBS:Temperature(0x008)
SBS:OperationStatus(0x54)[DSGIN]
C.2.4 Host Comm (Subclass 4)
C.2.4.1 Host Watchdog Timeout (Offset 0)
If the bq20z60-R1/bq20z65-R1 receives no valid SMBus communication for a time period greater than
Host Watchdog Timeout, the FETs are turned off, ChargingVoltage and ChargingCurrent are set to 0,
[TCA] and [TDA] in BatteryStatus are set, [HWDG] in SafetyStatus is set, and [XDSG] in OperationStatus
is set. The bq20z60-R1/bq20z65-R1 recovers if valid SMBus communication resumes.
Table C-41. Host Watchdog Timeout
Subclass
ID
Subclass
Name
Offset Name
Format
Size in
Bytes
Min
Value
Max
Value
Default
Value
Unit
Host Watchdog
Timeout
Unsigned
integer
4
Host Comm
0
1
0
255
0
s
Related Variables:
•
•
•
•
•
SBS:ChargingCurrent(0x14)
SBS:ChargingVoltage(0x15)
SBS:BatteryStatus(0x16)[TCA],[TDA]
SBS:SafetyStatus(0x51)[HWDG]
SBS:OperationStatus(0x54)[XDSG]
C.3 2nd Level Safety
C.3.1 Voltage (Subclass 16)
C.3.1.1 LT SOV Threshold (Offset 0)
When the bq20z60-R1/bq20z65-R1 is operating in the low temperature charging range ([TR2] = 1), it sets
the [SOV] flag in PFAlert if any CellVoltage4..1 is equal to or higher than the LT SOV Threshold. The
[SOV] flag in PFAlert is cleared and the [SOV] flag in PFStatus is set if any CellVoltage4..1 is equal to or
higher than the LT SOV Threshold for period of SOV Time.
118
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Table C-42. LT SOV Threshold
Subclass
Name
Size in
Subclass ID
16
Offset Name
Format
Bytes
Min Value Max Value Default Value Unit
Voltage
0
LT SOV
Integer
2
0
20,000
4400
mV
Threshold
Related Variables:
•
•
•
•
•
•
•
DF:2nd Level Safety:Voltage(16):SOV Time(6)
SBS:CellVoltage4(0x3c)
SBS:CellVoltage3(0x3d)
SBS:CellVoltage2(0x3e)
SBS:CellVoltage1(0x3f)
SBS:PFAlert(0x52)[SOV]
SBS:TempRange(0x72)[TR2]
C.3.1.2 ST SOV Threshold (Offset 2)
When the bq20z60-R1/bq20z65-R1 is operating in the standard temperature charging range 1 or 2
([TR2A] = 1, or [TR3] = 1), it sets the [SOV] flag in PFAlert if CellVoltage4..1 is equal to or higher than the
ST SOV Threshold. The [SOV] flag in PFAlert is cleared and the [SOV] flag in PFStatus is set if any
CellVoltage4..1 is equal to or higher than the ST SOV Threshold for period of SOV Time
Table C-43. ST SOV Threshold
Subclass
Name
Size in
Bytes
Subclass ID
Offset Name
Format
Min Value Max Value Default Value Unit
0 20,000 4600 mV
16
Voltage
2
ST SOV
Threshold
Integer
2
Related Variables:
•
•
•
•
•
•
•
DF:2nd Level Safety:Voltage(16):SOV Time(6)
SBS:CellVoltage4(0x3c)
SBS:CellVoltage3(0x3d)
SBS:CellVoltage2(0x3e)
SBS:CellVoltage1(0x3f)
SBS:PFAlert(0x52)[SOV]
SBS:TempRange(0x72)[TR2A][TR3]
C.3.1.3 HT SOV Threshold (Offset 4)
When the bq20z60-R1/bq20z65-R1 is operating in the high temperature charging range ([TR4] = 1), it sets
the [SOV] flag in PFAlert if CellVoltage4..1 is equal to or higher than the HT SOV Threshold.The [SOV]
flag in PFAlert is cleared and the [SOV] flag in PFStatus is set if any CellVoltage4..1 is equal to or higher
than the HT SOV Threshold for period of SOV Time
Table C-44. HT SOV Threshold
Subclass
Name
Size in
Bytes
Subclass ID
Offset Name
Format
Min Value Max Value Default Value Unit
0 20,000 4500 mV
16
Voltage
4
HT SOV
Threshold
Integer
2
Related Variables:
•
•
•
•
•
DF:2nd Level Safety:Voltage(16):SOV Time(6)
SBS:CellVoltage4(0x3c)
SBS:CellVoltage3(0x3d)
SBS:CellVoltage2(0x3e)
SBS:CellVoltage1(0x3f)
119
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•
•
SBS:PFAlert(0x52)[SOV]
SBS:TempRange(0x72)[TR4]
C.3.1.4 SOV Time (Offset 6)
The bq20z60-R1/bq20z65-R1 sets the [SOV] flag in PFStatus and goes into a safety overvoltage
condition if any CellVoltage4..1 is equal to or higher than the appropriate SOV threshold (depending on
temperature range) for a period of SOV Time. If the [XSOV] bit in Permanent Fail Cfg 1 is set, the SAFE
pin is driven high. This function is disabled if SOV Time is set to 0.
Table C-45. SOV Time
Subclass
Name
Size in
Bytes
Subclass ID
Offset Name
SOV Time
Format
Min Value Max Value Default Value Unit
240
16
Voltage
6
Unsigned integer
1
0
0
s
Related Variables:
•
•
•
•
•
•
•
•
•
•
DF:2nd Level Safety:Voltage(16):LT SOV Threshold(0)
DF:2nd Level Safety:Voltage(16):ST SOV Threshold(2)
DF:2nd Level Safety:Voltage(16):HT SOV Threshold(4)
DF:Configuration:Registers(64):Permanent Fail Cfg 1(6)[XSOV]
SBS:CellVoltage4(0x3c)
SBS:CellVoltage3(0x3d)
SBS:CellVoltage2(0x3e)
SBS:CellVoltage1(0x3f)
SBS:PFAlert(0x52)[SOV]
SBS:PFStatus(0x53)[SOV]
C.3.1.5 PF SOV Fuse Blow Delay (Offset 7)
In case of a safety overvoltage permanent failure condition, the assertion of the SAFE output (to blow a
fuse) can be delayed to allow the battery to discharge to a safe level before blowing the fuse. A PF timer
is started once an SOV PF event occurs. The SAFE output will be driven high (thus blowing the fuse)
once this timer reaches PF SOV Fuse Blow Delay, or as soon as all cell voltages go below the COV
Recovery threshold for the current temperature range, whichever comes first.
Table C-46. PF SOV Fuse Blow Delay
Subclass
Name
Size in
Bytes
Subclass ID
Offset Name
Format
Min Value Max Value Default Value Unit
65,535
16
Voltage
7
PF SOV Fuse
Blow Delay
Unsigned integer
2
0
0
s
Related Variables:
•
•
•
•
•
•
•
•
•
DF:1st Level Safety:Voltage(0):LT COV Recovery(2)
DF:1st Level Safety:Voltage(0):ST COV Recovery(6)
DF:1st Level Safety:Voltage(0):HT COV Recovery(10)
DF:Configuration:Registers(64):Permanent Fail Cfg 1(6)[XSOV]
SBS:CellVoltage4(0x3c)
SBS:CellVoltage3(0x3d)
SBS:CellVoltage2(0x3e)
SBS:CellVoltage1(0x3f)
SBS:PFAlert(0x52)[SUV]
120
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C.3.1.6 SUV Threshold (Offset 9)
The bq20z60-R1/bq20z65-R1 sets the [SUV] flag in PFAlert if CellVoltage4..1 is less than the
SUV Threshold. The [SUV] flag in PFAlert is cleared and the [SUV] flag in PFStatus is set if any
CellVoltage4..1 is equal to or higher than the SUV Threshold for period of SUV Time
Table C-47. SUV Threshold
Subclass
Name
Size in
Bytes
Subclass ID
Offset Name
Format
Min Value Max Value Default Value Unit
0 20,000 2000 mV
16
Voltage
9
SUV Threshold Integer
2
Related Variables:
•
•
•
•
•
•
DF:2nd Level Safety:Voltage(16):SUV Time(11)
SBS:CellVoltage4(0x3c)
SBS:CellVoltage3(0x3d)
SBS:CellVoltage2(0x3e)
SBS:CellVoltage1(0x3f)
SBS:PFAlert(0x52)[SUV]
C.3.1.7 SUV Time (Offset 11)
The bq20z60-R1/bq20z65-R1 sets the [SUV] flag in PFStatus if any CellVoltage1..4 is less than the SUV
Threshold for a period of SUV Time. If the [XSUV] bit in Permanent Fail Cfg 1 is set, the SAFE pin is
driven high. This function is disabled if SUV Time is set to 0.
Table C-48. SUV Time
Subclass
Name
Size in
Bytes
Subclass ID
Offset Name
11 SUV Time
Format
Min Value Max Value Default Value Unit
240
16
Voltage
Unsigned integer
1
0
0
s
Related Variables:
•
•
•
•
•
•
•
•
DF:2nd Level Safety:Voltage(16):SUV Threshold(9)
DF:Configuration:Registers(64):Permanent Fail Cfg(6)[XSUV]
SBS:CellVoltage4(0x3c)
SBS:CellVoltage3(0x3d)
SBS:CellVoltage2(0x3e)
SBS:CellVoltage1(0x3f)
SBS:PFAlert(0x52)[SUV]
SBS:PFStatus(0x53)[SUV]
C.3.1.8 Rest CIM Current (Offset 12)
The battery pack Current must be below the Rest CIM Current limit for period of CIM Battery Rest Time
before the bq20z60-R1/bq20z65-R1 starts detecting cell imbalance at rest.
Table C-49. Rest CIM Current
Subclass
Name
Size in
Bytes
Subclass ID
Offset Name
Format
Min Value Max Value Default Value Unit
200 mA
16
Voltage
12
Rest CIM
Current
Integer
1
0
5
Related Variables:
•
•
•
•
DF:2nd Level Safety:Voltage(16):CIM Battery Rest Time(16)
SBS:Current(0x00a)
SBS:CellVoltage4(0x3c)
SBS:CellVoltage3(0x3d)
121
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•
•
SBS:CellVoltage2(0x3e)
SBS:CellVoltage1(0x3f)
C.3.1.9 Rest CIM Fail Voltage (Offset 13)
When the conditions for detecting cell imbalance at rest are satisfied, the bq20z60-R1/bq20z65-R1 sets
the [CIM_R] flag in PFAlert if the bq20z60-R1/bq20z65-R1 measures a difference between any
CellVoltage4..1 equal to or higher than the Rest CIM Fail Voltage threshold. The [CIM_R] flag in PFAlert
is cleared and the [CIM_R] flag in PFStatus is set if any CellVoltage4..1 is equal to or higher than the
Rest CIM Fail Voltage threshold for period of Rest CIM Time.
Table C-50. Rest CIM Fail Voltage
Subclass
Name
Subclass ID
Offset Name
Format
Size in Bytes Min Value Max Value Default Value Unit
5000 1000 mV
16
Voltage
13
Rest CIM Fail
Voltage
Integer
2
0
Related Variables:
•
•
•
•
•
•
•
DF:2nd Level Safety:Voltage(16):Rest CIM Time(15)
SBS:CellVoltage4(0x3c)
SBS:CellVoltage3(0x3d)
SBS:CellVoltage2(0x3e)
SBS:CellVoltage1(0x3f)
SBS:PFAlert(0x52)[CIM_R]
SBS:PFStatus(0x53)[CIM_R]
C.3.1.10 Rest CIM Time (Offset 15)
When the conditions for detecting cell imbalance at rest are satisfied, the bq20z60-R1/bq20z65-R1 sets
the [CIM_R] flag in PFAlert if the bq20z60-R1/bq20z65-R1 measures a difference between any
CellVoltage4..1 equal to or higher than the Rest CIM Fail Voltage threshold. The [CIM_R] flag in PFAlert
is cleared and the [CIM_R] flag in PFStatus is set if any CellVoltage4..1 is equal to or higher than the
Rest CIM Fail Voltage threshold for period of Rest CIM Time. If the [XIM_R] bit in Permanent Fail Cfg
is set, the SAFE pin is also driven high. If Rest CIM Time is set to 0, then cell imbalance detection at rest
is disabled.
Table C-51. Rest CIM Time
Subclass
Name
Size in
Bytes
Subclass ID
Offset Name
Format
Min Value Max Value Default Value Unit
240
16
Voltage
15 Rest CIM Time Unsigned integer
1
0
0
s
Related Variables:
•
•
•
•
•
•
•
•
•
•
DF:2nd Level Safety:Voltage(16):Rest CIM Fail Voltage(13)
DF:2nd Level Safety:Voltage(16):Rest CIM Current(12)
DF:Configuration:Registers(64):Permanent Fail Cfg(6)[XCIM_R]
SBS:Current(0x00a)
SBS:CellVoltage4(0x3c)
SBS:CellVoltage3(0x3d)
SBS:CellVoltage2(0x3e)
SBS:CellVoltage1(0x3f)
SBS:PFAlert(0x52)[CIM_R]
SBS:PFStatus(0x53)[CIM_R]
122
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C.3.1.11 CIM Battery Rest Time (Offset 16)
The battery Current must be below the Rest CIM Current limit for at least the CIM Battery Rest Time
period before the bq20z60-R1/bq20z65-R1 starts detecting a cell imbalance at rest. Cell imbalance
detection at rest is disabled if CIM Battery Rest Time is set to 0.
Table C-52. CIM Battery Rest Time
Subclass
Name
Size in
Bytes
Subclass ID
Offset Name
Format
Min Value Max Value Default Value Unit
65,535 1800
16
Voltage
16
CIM Battery
Rest Time
Unsigned integer
2
0
s
Related Variables:
•
•
•
•
•
DF:2nd Level Safety:Voltage(16):Cell Imbalance Current(10)
DF:2nd Level Safety:Voltage(16):Cell Imbalance Fail Voltage(11)
DF:2nd Level Safety:Voltage(16):Cell Imbalance Time(13)
DF:2nd Level Safety:Voltage(16):Min CIM-check Voltage (16)
SBS:Current(0x00a)
C.3.1.12 Rest CIM Check Voltage (Offset 18)
For cell imbalance detection at rest, the bq20z60-R1/bq20z65-R1 starts detection only if any of the cell
voltages (CellVoltage4..1) exceeds Rest CIM Check Voltage.
Table C-53. Rest CIM Check Voltage
Subclass
Name
Size in
Bytes
Subclass ID
Offset Name
Format
Min Value Max Value Default Value Unit
0 65,535 3000 mV
16
Voltage
18
Rest CIM
Check Voltage
Unsigned integer
2
Related Variables:
•
•
•
•
SBS:CellVoltage4(0x3c)
SBS:CellVoltage3(0x3d)
SBS:CellVoltage2(0x3e)
SBS:CellVoltage1(0x3f)
C.3.1.13 Active CIM Fail Voltage (Offset 20)
When the conditions for detecting cell imbalance while active are satisfied, the bq20z60-R1/bq20z65-R1
sets the [CIM_A] flag in PFAlert2 if the bq20z60-R1/bq20z65-R1 measures a difference between any
CellVoltage4..1 equal to or higher than the Active CIM Fail Voltage threshold. The [CIM_A] flag in
PFAlert2 is cleared and the [CIM_A] flag in PFStatus2 is set if any CellVoltage4..1 is equal to or higher
than the Active CIM Fail Voltage threshold for a period of Active CIM Time.
Table C-54. Active CIM Fail Voltage
Subclass
Name
Subclass ID
Offset Name
Format
Size in Bytes Min Value Max Value Default Value Unit
16
Voltage
20
Active CIM Fail
Voltage
Integer
2
0
5000
1000
mV
Related Variables:
•
•
•
•
•
•
DF:2nd Level Safety:Voltage(16):Active CIM Time(22)
SBS:CellVoltage4(0x3c)
SBS:CellVoltage3(0x3d)
SBS:CellVoltage2(0x3e)
SBS:CellVoltage1(0x3f)
SBS:PFAlert2(0x6a)[CIM_A]
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•
SBS:PFStatus2(0x6b)[CIM_A]
C.3.1.14 Active CIM Time (Offset 22)
When the conditions for detecting cell imbalance while active are satisfied, the bq20z60-R1/bq20z65-R1
sets the [CIM_A] flag in PFAlert2 if the bq20z60-R1/bq20z65-R1 measures a difference between any
CellVoltage4..1 equal to or higher than the Active CIM Fail Voltage threshold. The [CIM_A] flag in
PFAlert2 is cleared and the [CIM_A] flag in PFStatus2 is set if any CellVoltage4..1 is equal to or higher
than the Active CIM Fail Voltage threshold for a period of Active CIM Time. If the [XCIM_A] flag in
Permanent Fail Cfg 2 is set, the SAFE pin is also driven high. If Active CIM Time is set to 0, then cell
imbalance active detection is disabled
Table C-55. Active CIM Time
Subclass
Name
Size in
Bytes
Subclass ID
Offset Name
Format
Min Value Max Value Default Value Unit
240
16
Voltage
22
Active CIM
Time
Unsigned integer
1
0
0
s
Related Variables:
•
•
•
•
•
•
•
•
DF:2nd Level Safety:Voltage(16):Active CIM Fail Voltage(20)
DF:Configuration:Registers(64):Permanent Fail Cfg 2(8)[XCIM_A]
SBS:CellVoltage4(0x3c)
SBS:CellVoltage3(0x3d)
SBS:CellVoltage2(0x3e)
SBS:CellVoltage1(0x3f)
SBS:PFAlert2(0x6a)[CIM_A]
SBS:PFStatus2(0x6b)[CIM_A]
C.3.1.15 Active CIM Check Voltage (Offset 23)
For active cell imbalance detection, the bq20z60-R1/bq20z65-R1 starts detection only if any of the cell
voltages (CellVoltage4..1) exceeds Active CIM Check Voltage.
Table C-56. Active CIM Check Voltage
Subclass
Name
Size in
Bytes
Subclass ID
Offset Name
Format
Min Value Max Value Default Value Unit
0 32,768 3000 mV
16
Voltage
23
Active CIM
Check Voltage
Integer
2
Related Variables:
•
•
•
•
SBS:CellVoltage4(0x3c)
SBS:CellVoltage3(0x3d)
SBS:CellVoltage2(0x3e)
SBS:CellVoltage1(0x3f)
C.3.1.16 PFIN Detect Time (Offset 25)
If the PFIN pin is logic low, then [PFIN] in PFAlert is set. If the [PFIN] PF alert time period exceeds PFIN
Detect Time, the [PFIN] flag in PFAlert is cleared, the [PFIN] bit in PFStatus is set, and, if [XPFIN] in
Permanent Fail Cfg is set, the SAFE pin is also driven high. This function is disabled if PFIN Detect Time
is set to 0.
Table C-57. PFIN Detect Time
Subclass
Name
Size in
Bytes
Subclass ID
Offset Name
Format
Min Value Max Value Default Value Unit
240
16
Voltage
25
PFIN Detect
Time
Unsigned integer
1
0
0
s
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Related Variables:
•
•
•
DF:Configuration:Registers(64):Permanent Fail Cfg(6)[XPFIN]
SBS:PFAlert(0x52)[PFIN]
SBS:PFStatus(0x53)[PFIN]
C.3.1.17 PF Min Fuse Blow Voltage (Offset 26)
In case of a safety permanent failure condition other than charge FET or discharge FET faults ([CFETF] or
[DFETF]), the assertion of the SAFE output (to blow a fuse) is conditional on pack voltage being greater
than PF Min Fuse Blow Voltage. The purpose of the feature is to ensure that there is sufficient battery
power for a reliable fuse blow.
Table C-58. PF Min Fuse Blow Voltage
Subclass
Name
Size in
Bytes
Subclass ID
Offset Name
Format
Min Value Max Value Default Value Unit
0 20,000 8000 mV
16
Voltage
26
PF Min Fuse
Blow Voltage
Integer
2
Related Variables:
•
•
•
•
SBS:CellVoltage4(0x3c)
SBS:CellVoltage3(0x3d)
SBS:CellVoltage2(0x3e)
SBS:CellVoltage1(0x3f)
C.3.2 Current (Subclass 17)
C.3.2.1 SOC Chg (Offset 0)
The bq20z60-R1/bq20z65-R1 sets the [SOCC] in PFAlert if Current is equal to or higher than the
SOC Chg threshold. If the time period exceeds SOC Chg Time, the [SOCC] flag in PFAlert is cleared, the
[SOCC] flag in PFStatus is set, and if [XSOCC] in Permanent Fail Cfg is set, the SAFE pin is driven high.
Table C-59. SOC Chg
Subclass
Name
Size in
Bytes
Subclass ID
Offset Name
SOC Chg
Format
Min Value Max Value Default Value Unit
0 30,000 10,000 mA
17
Current
0
Integer
2
Related Variables:
•
•
•
•
•
DF:2nd Level Safety:Current(17):SOC Chg Time(2)
DF:Configuration:Registers(64):Permanent Fail Cfg(2)[XSOCC]
SBS:Current(0x00a)
SBS:PFAlert(0x52)[SOCC]
SBS:PFStatus(0x53)[SOCC]
C.3.2.2 SOC Chg Time (Offset 2)
The bq20z60-R1/bq20z65-R1 sets the [SOCC] flag in PFAlert if Current is equal to or higher than the SOC
Chg threshold. If the time period exceeds SOC Chg Time, the [SOCC] flag in PFAlert is cleared, the
[SOCC] flag in PFStatus is set, and if [XSOCC] in Permanent Fail Cfg is set, the SAFE pin is driven high.
This function is disabled if SOC Chg Time is set to 0.
Table C-60. SOC Chg Time
Subclass
Name
Size in
Bytes
Subclass ID
Offset Name
Format
Min Value Max Value Default Value Unit
17
Current
2
SOC Chg Time Unsigned integer
1
0
240
0
s
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Related Variables:
•
•
•
•
•
DF:2nd Level Safety:Current(17):SOC Chg(0)
DF:Configuration:Registers(64):Permanent Fail Cfg(2)[XSOCC]
SBS:Current(0x00a)
SBS:PFAlert(0x52)[SOCC]
SBS:PFStatus(0x53)[SOCC]
C.3.2.3 SOC Dsg (Offset 3)
The bq20z60-R1/bq20z65-R1 sets the [SOCD] flag in PFAlert if discharge Current is equal to or higher
than the (-)SOC Dsg threshold. If the [SOCD] condition time period equals or exceeds the SOC Dsg Time
then the [SOCD] flag in PFAlert is cleared, the [SOCD] flag in PFStatus is set, and if the [XSOCD] bit in
Permanent Fail Cfg is set, the SAFE pin is driven high.
Table C-61. SOC Dsg
Subclass
Name
Size in
Bytes
Subclass ID
Offset Name
SOC Dsg
Format
Min Value Max Value Default Value Unit
0 30,000 10,000 mA
17
Current
3
Integer
2
Related Variables:
•
•
•
•
•
DF:2nd Level Safety:Current(17):SOC Dsg Time(5)
DF:Configuration:Registers(64):Permanent Fail Cfg(6)[XSOCD]
SBS:Current(0x00a)
SBS:PFAlert(0x52)[SOCD]
SBS:PFStatus(0x53)[SOCD]
C.3.2.4 SOC Dsg Time (Offset 5)
The bq20z60-R1/bq20z65-R1 sets the [SOCD] flag in PFAlert if discharge Current is equal to or higher
than the (-)SOC Dsg threshold. If the time period exceeds SOC Dsg Time, the [SOCD] flag in PFAlert is
cleared, the [SOCD] flag in PFStatus is set, and if [XSOCD] in Permanent Fail Cfg is set, the SAFE pin is
driven high. This function is disabled if SOC Dsg Time is set to 0.
Table C-62. SOC Dsg Time
Subclass
Name
Size in
Bytes
Subclass ID
Offset Name
Format
Min Value Max Value Default Value Unit
240
17
Current
5
SOC Dsg Time Unsigned integer
1
0
0
s
Related Variables:
•
•
•
•
•
DF:2nd Level Safety:Current(17):SOC Dsg(3)
DF:Configuration:Registers(64):Permanent Fail Cfg(6)[XSOCD]
SBS:Current(0x00a)
SBS:PFAlert(0x52)[SOCD]
SBS:PFStatus(0x53)[SOCD]
C.3.3 Temperature (Subclass 18)
C.3.3.1 SOT1 Chg Threshold (Offset 0)
The bq20z60-R1/bq20z65-R1 sets [SOT1C] flag in PFAlert if TS1Temperature is equal to or higher than
the SOT1 Chg Threshold during charging ([DSG] = 0).
126
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Table C-63. SOT1 Chg Threshold
Subclass
Name
Size in
Bytes
Subclass ID
18
Offset Name
Format
Min Value Max Value Default Value Unit
0 2550 650 0.1°C
Temperature
0
SOT1 Chg
Threshold
Integer
2
Related Variables:
•
•
•
•
DF:2nd Level Safety:Temperature(18):SOT1 Chg Time(2)
SBS:BatteryStatus(0x16)[DSG]
SBS:PFAlert(0x52)[SOT1C]
SBS:TS1Temperature(0x5e)
C.3.3.2 SOT1 Chg Time (Offset 2)
If the [SOT1C] flag in PFAlert time period exceeds SOT1 Chg Time, the [SOT1C] flag in PFAlert is
cleared, the [SOT1C] flag in PFStatus is set, and if [XSOT1C] in Permanent Fail Cfg is set, the SAFE pin
is driven high. This function is disabled if SOT1 Chg Time is set to 0.
Table C-64. SOT1 Chg Time
Subclass
Name
Size in
Bytes
Subclass ID
Offset Name
Format
Min Value Max Value Default Value Unit
240
18
Temperature
2
SOT1 Chg Time Unsigned integer
1
0
0
s
Related Variables:
•
•
•
•
•
DF:2nd Level Safety:Temperature(18):SOT1 Chg Threshold(0)
DF:Configuration:Registers(64):Permanent Fail Cfg(6)[XSOT1C]
SBS:TS1Temperature(0x5e)
SBS:PFAlert(0x52)[SOT1C]
SBS:PFStatus(0x53)[SOT1C]
C.3.3.3 SOT2 Chg Threshold (Offset 3)
The bq20z60-R1/bq20z65-R1 sets [SOT2C] flag in PFAlert2 if TS2Temperature is equal to or higher than
the SOT2 Chg Threshold during charging ([DSG] = 0).
Table C-65. SOT2 Chg Threshold
Subclass
Name
Size in
Bytes
Subclass ID
Offset Name
Format
Min Value Max Value Default Value Unit
0 2550 650 0.1°C
18
Temperature
3
SOT2 Chg
Threshold
Integer
2
Related Variables:
•
•
•
•
DF:2nd Level Safety:Temperature(18):SOT2 Chg Time(5)
SBS:TS2Temperature(0x5f)
SBS:BatteryStatus(0x16)[DSG]
SBS:PFAlert2(0x6a)[SOT2C]
C.3.3.4 SOT2 Chg Time (Offset 5)
The bq20z60-R1/bq20z65-R1 sets the [SOT2C] flag in PFStatus2 if TS2Temperature is equal to or higher
than the SOT2 Chg Threshold during charging ([DSG] = 0) for a period of SOT2 Chg Time. If [XSOT2C]
in Permanent Fail Cfg 2 is set, the SAFE pin is driven high. This function is disabled if SOT2 Chg Time
is set to 0.
127
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Table C-66. SOT2 Chg Time
Subclass
Name
Size in
Subclass ID
Offset Name
Format
Bytes
Min Value Max Value Default Value Unit
240
18
Temperature
5
SOT2 Chg Time Unsigned integer
1
0
0
s
Related Variables:
•
•
•
•
•
•
DF:2nd Level Safety:Temperature(18):SOT2 Chg Threshold(3)
DF:Configuration:Registers(64):Permanent Fail Cfg 2(6)[XSOT2C]
SBS:BatteryStatus(0x16)[DSG]
SBS:TS2Temperature(0x5f)
SBS:PFAlert2(0x6a)[SOT2C]
SBS:PFStatus2(0x6b)[SOT2C]
C.3.3.5 SOT1 Dsg Threshold (Offset 6)
The bq20z60-R1/bq20z65-R1 sets the [SOT1D] flag in PFAlert if TS1Temperature is equal to or higher
than the SOT1 Dsg Threshold during discharging ([DSG] = 1).
Table C-67. SOT1 Dsg Threshold
Subclass
Name
Size in
Bytes
Subclass ID
Offset Name
Format
Min Value Max Value Default Value Unit
0 2550 750 0.1°C
18
Temperature
6
SOT1 Dsg
Threshold
Integer
2
Related Variables:
•
•
•
•
DF:2nd Level Safety:Temperature(18):SOT1 Dsg Time(8)
SBS:TS1Temperature(0x5e)
SBS:BatteryStatus(0x16)[DSG]
SBS:PFAlert(0x52)[SOT1D]
C.3.3.6 SOT1 Dsg Time (Offset 8)
The bq20z60-R1/bq20z65-R1 clears the [ SOT1D] flag in PFAlert and sets the [SOT1D] flag in PFStatus if
TS1Temperature is equal to or higher than the SOT1 Dsg Threshold during discharging ([DSG] = 1) for a
period of SOT1 Dsg Time. If [XSOT1D] in Permanent Fail Cfg 1 is set, the SAFE pin is driven high. This
function is disabled if SOT1 Dsg Time is set to 0.
Table C-68. SOT1 Dsg Time
Subclass
Name
Size in
Bytes
Subclass ID
Offset Name
Format
Min Value Max Value Default Value Unit
240
18
Temperature
8
SOT1 Dsg Time Unsigned integer
1
0
0
s
Related Variables:
•
•
•
•
•
DF:2nd Level Safety:Temperature(18):SOT1 Dsg Threshold(6)
DF:Configuration:Registers(64):Permanent Fail Cfg(6)[XSOT1D]
SBS:TS1Temperature(0x5e)
SBS:PFAlert(0x52)[SOT1D]
SBS:PFStatus(0x53)[SOT1D]
C.3.3.7 SOT2 Dsg Threshold (Offset 9)
The bq20z60-R1/bq20z65-R1 sets the [SOT2D] flag in PFAlert2 if TS2Temperature is equal to or higher
than the SOT2 Dsg Threshold during discharging ([DSG] = 1).
128
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Table C-69. SOT2 Dsg Threshold
Subclass
Name
Size in
Bytes
Subclass ID
18
Offset Name
Format
Min Value Max Value Default Value Unit
0 2550 750 0.1°C
Temperature
9
SOT2 Dsg
Threshold
Integer
2
Related Variables:
•
•
•
•
DF:2nd Level Safety:Temperature(18):SOT2 Dsg Time(11)
SBS:TS2Temperature(0x5f)
SBS:BatteryStatus(0x16)[DSG]
SBS:PFAlert2(0x6a)[SOT2D]
C.3.3.8 SOT2 Dsg Time (Offset 11)
If [SOT2D] in the PFAlert2 time period exceeds SOT2 Dsg Time, the [SOT2D] in PFAlert2 is cleared,
[SOT2D] in PFStatus2 is set and, if [XSOT2D] in Permanent Fail Cfg is set, the SAFE pin is driven high.
This function is disabled if SOT2 Dsg Time is set to 0.
Table C-70. SOT2 Dsg Time
Subclass
Name
Size in
Bytes
Subclass ID
Offset Name
Format
Min Value Max Value Default Value Unit
240
18
Temperature
11 SOT2 Dsg Time Unsigned integer
1
0
0
s
Related Variables:
•
•
•
•
•
DF:2nd Level Safety:Temperature(18):SOT2 Dsg Threshold(9)
DF:Configuration:Registers(64):Permanent Fail Cfg 2(8)[XSOT2D]
SBS:TS2Temperature(0x5f)
SBS:PFAlert2(0x6a)[SOT2D]
SBS:PFStatus2(0x6b)[SOT2D]
C.3.3.9 Open Thermistor (Offset 12)
The bq20z60-R1/bq20z65-R1 sets the [SOPT1] flag in PFAlert (or [SOPT2] flag in PFAlert2) if
TS1Temperature (or TS2Temperature) is equal to or lower than the Open Thermistor threshold and
Open Time > 0.
Table C-71. Open Thermistor
Subclass
Name
Size in
Bytes
Subclass ID
Offset Name
Format
Min Value Max Value Default Value Unit
–1000 1200 –333 0.1°C
18
Temperature
12
Open
Integer
2
Thermistor
Related Variables:
•
•
•
•
•
DF:2nd Level Safety:Temperature(18):Open Time(14)
SBS:TS1Temperature(0x5e)
SBS:TS2Temperature(0x5f)
SBS:PFAlert(0x52)[SOPT1]
SBS:PFAlert2(0x6a)[SOPT2]
C.3.3.10 Open Time (Offset 14)
If the [SOPT1] or [SOPT2] alert) PFAlert time period exceeds the Open Time period, the [SOPT1] flag in
PFAlert (or [SOPT2] flag in PFAlert2) is cleared, [SOPT1] in PFStatus (or [SOPT2] flag in PFStatus2) is
set, and if [XSOPT1] (or [XSOPT2]) in Permanent Fail Cfg (or Permanent Fail Cfg 2) is set, the SAFE
pin is driven high. This function is disabled if Open Time is set to 0.
129
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Table C-72. Open Time
Subclass
Name
Size in
Subclass ID
Offset Name
14 Open Time
Format
Bytes
Min Value Max Value Default Value Unit
240
18
Temperature
Integer
1
0
0
s
Related Variables:
•
•
•
•
•
•
•
•
•
DF:2nd Level Safety:Temperature(18):Open Thermistor(14)
DF:Configuration:Registers(64):Permanent Fail Cfg(6)[XSOPT1]
DF:Configuration:Registers(64):Permanent Fail Cfg 2(8)[XSOPT2]
SBS:PFAlert(0x52)[SOPT1]
SBS:PFStatus(0x53)[SOPT1]
SBS:TS1Temperature(0x5e)
SBS:TS2Temperature(0x5f)
SBS:PFAlert2(0x6a)[SOPT2]
SBS:PFStatus2(0x6b)[SOPT2]
C.3.4 FET Verification (Subclass 19)
C.3.4.1 FET Fail Limit (Offset 0)
The bq20z60-R1/bq20z65-R1 sets [CFETF] in PFAlert if the bq20z60-R1/bq20z65-R1 detects charge
Current equal to or higher than the FET Fail Limit threshold when the CHG FET is supposed to be off.
The bq20z60-R1/bq20z65-R1 sets [DFETF] in PFAlert if the bq20z60-R1/bq20z65-R1 detects discharge
Current equal to or lower than the (–)FET Fail Limit threshold when the DSG FET is supposed to be off.
Table C-73. FET Fail Limit
Subclass
Name
Size in
Bytes
Subclass ID
Offset Name
FET Fail Limit
Format
Min Value Max Value Default Value Unit
0 500 20 mA
19
FET Verification
0
Integer
2
Related Variables:
•
•
•
DF:2nd Level Safety:FET Verification(19):FET Fail Time(2)
SBS:Current(0x00a)
SBS:PFAlert(0x52)[CFETF],[DFETF]
C.3.4.2 FET Fail Time (Offset 2)
If the [CFETF] alert time period exceeds FET Fail Time, the [CFETF] flag in PFAlert is cleared, [CFETF]
in PFStatus is set and, if [XCFETF] in Permanent Fail Cfg is set, the SAFE pin is driven high. This
function is disabled if FET Fail Time is set to 0.
If the [DFETF] alert time period exceeds FET Fail Time, the [DFETF] flag in PFAlert is cleared, [DFETF]
in PFStatus is set and, if [XDFETF] in Permanent Fail Cfg is set, the SAFE pin is driven high. This
function is disabled if FET Fail Time is set to 0.
Table C-74. FET Fail Time
Subclass
Name
Size in
Bytes
Subclass ID
Offset Name
FET Fail Time
Format
Min Value Max Value Default Value Unit
240
19
AFE Verification
2
Unsigned integer
1
0
0
s
Related Variables:
•
•
•
•
•
DF:2nd Level Safety:FET Verification(19):FET Fail Limit(0)
DF:Configuration:Registers(64):Permanent Fail Cfg(6)[XCFETF],[XDFETF]
SBS:Current(0x00a)
SBS:PFAlert(0x52)[CFETF],[DFETF]
SBS:PFStatus(0x53)[CFETF],[DFETF]
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C.3.5 AFE Verification (Subclass 20)
C.3.5.1 AFE Check Time (Offset 0)
The bq20z60-R1/bq20z65-R1 compares periodically, with a period of AFE Check Time, certain RAM
content and expected control bit states of the AFE with the values stored in data flash. If an error is
detected, the internal AFE fail counter is incremented. Set AFE Check Time to 0 to disable [AFE_P]
faults.
Table C-75. AFE Check Time
Subclass
Name
Size in
Bytes
Subclass ID
Offset Name
Format
Min Value Max Value Default Value Unit
255
20
FET Verification
0
AFE Check
Time
Unsigned integer
1
0
0
s
Related Variables:
•
•
•
•
DF:2nd Level Safety:AFE Verification(20):AFE Fail Limit(1)
DF:2nd Level Safety:AFE Verification(20):AFE Fail Recovery Time(2)
SBS:SafetyStatus(0x51)[WDF]
SBS:PFStatus(0x53)[AFE_P]
C.3.5.2 AFE Fail Limit (Offset 1)
If the internal AFE fail counter reaches AFE Fail Limit, the bq20z60-R1/bq20z65-R1 reports an [AFE_C]
permanent failure, and if [XAFE_C] in Permanent Fail Cfg is set, the SAFE pin is driven high. This
function is disabled if AFE Fail Limit is set to zero.
Table C-76. AFE Fail Limit
Subclass
Name
Size in
Bytes
Subclass ID
Offset Name
AFE Fail Limit
Format
Min Value Max Value Default Value Unit
255
20
AFE Verification
1
Unsigned integer
1
0
0
Related Variables:
•
•
•
•
•
DF:2nd Level Safety:AFE Verification(20):AFE Check Time(0)
DF:2nd Level Safety:AFE Verification(20):AFE Fail Recovery Time(2)
DF:Configuration:Registers(64):Permanent Fail Cfg(6)[XAFE_C]
SBS:AFEData(0x45)
SBS:PFStatus(0x53)[AFE_C]
C.3.5.3 AFE Fail Recovery Time (Offset 2)
The bq20z60-R1/bq20z65-R1 decrements the internal AFE fail counter by one each AFE Fail Recovery
Time period to a minimum of zero.
Table C-77. AFE Fail Recovery Time
Subclass
ID
Subclass
Name
Offset Name
Format
Size in Bytes Min Value Max Value Default Value Unit
20
AFE Verification
2
AFE Fail Recovery Unsigned integer
Time
1
0
255
20
s
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Related Variables:
•
•
DF:2nd Level Safety:AFE Verification(20):AFE Check Time(0)
DF:2nd Level Safety:AFE Verification(20):AFE Fail Limit(1)
C.3.5.4 AFE Init Retry Limit (Offset 3)
After a full reset, the AFE offset and gain values are read twice and then compared. AFE Init Retry Limit
is the maximum number of times that the initial AFE offset and gain values are read, if they are not
considered the same, until the [AFE_C] permanent failure occurs.
Table C-78. AFE Init Retry Limit
Subclass
Name
Size in
Bytes
Subclass ID
Offset Name
Format
Min Value Max Value Default Value Unit
255
20
AFE Verification
3
AFE Init Retry
Limit
Unsigned
integer
1
0
6
–
Related Variables:
•
•
DF:2nd Level Safety:AFE Verification(20):AFE Init Limit(4)
SBS:PFStatus(0x53)[AFE_C]
C.3.5.5 AFE Init Limit (Offset 4)
AFE Init Limit is the difference in A/D counts that two successive readings of AFE offset and gain can be,
and still be considered the same value, after a full reset.
Table C-79. AFE Init Limit
Subclass
Name
Size in
Bytes
Subclass ID
Offset Name
AFE Init Limit
Format
Min Value Max Value Default Value Unit
0 255 20
20
AFE Verification
4
Unsigned integer
1
Related Variables:
•
•
DF:2nd Level Safety:AFE Verification(20):AFE Init Retry Limit(3)
SBS:PFStatus(0x53)[AFE_C]
C.3.6 Fuse Verification (Subclass 21)
C.3.6.1 Fuse Fail Limit (Offset 0)
The bq20z60-R1/bq20z65-R1 sets the [FBF] flag in PFAlert if the absolute value of charge or discharge
Current is equal to or higher than the fuse fail limit threshold after a fuse blow attempt.
Table C-80. Fuse Fail Limit
Subclass
ID
Size in
Bytes
Subclass Name Offset Name
Format
Min Value Max Value Default Value Unit
20 mA
21
Fuse Verification Fuse Fail Limit Integer
0
2
0
2
Related Variables:
•
•
•
DF:2nd Level Safety:Fuse Verification(21):Fuse Fail Time(2)
SBS:Current(0x00a)
SBS:PFAlert(0x52)[FBF]
C.3.6.2 Fuse Fail Time (Offset 2)
If [FBF] in PFAlert time period exceeds Fuse Fail Time, the bq20z60-R1/bq20z65-R1 reports a fuse blow
failure permanent error, [FBF] in PFAlert is reset, and [FBF] in PFStatus is set. This function is disabled if
Fuse Fail Time is set to 0.
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Table C-81. Fuse Fail Time
Subclass
Name
Size in
Subclass ID
21
Offset Name
Format
Bytes
Min Value Max Value Default Value Unit
Fuse
2
Fuse Fail Time Unsigned integer
1
0
240
0
s
Verification
Related Variables:
•
•
•
DF:2nd Level Safety:Fuse Verification(21):Fuse Fail Limit(0)
SBS:PFAlert(0x52)[FBF]
SBS:PFStatus(0x53)[FBF]
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C.4 Charge Control
C.4.1 Charge Temp Cfg (Subclass 32)
C.4.1.1 JT1 (Offset 0)
JT1 is the lower bound of the low temperature charging range. If Temperature is below the JT1 threshold,
then the [TR1] flag in TempRange is set and charging is inhibited from starting. If the
bq20z60-R1/bq20z65-R1 is in charge mode ([DSG] = 0), then charging is suspended, the [CHGSUSP]
flag in ChargingStatus is set, and ChargingCurrent and ChargingVoltage are set to 0.
Table C-82. JT1
Subclass
ID
Subclass
Name
Offset Name
JT1
Format
Size in Bytes Min Value Max Value Default Value Unit
–400 1200 0.1°C
32
Charge Temp
Cfg
0
Integer
2
0
Related Variables:
•
•
•
•
•
•
SBS:Temperature(0x008)
SBS:ChargingCurrent(0x14)
SBS:ChargingVoltage(0x15)
SBS:BatteryStatus(0x16)[DSG]
SBS:ChargingStatus(0x55)[CHGSUSP]
SBS:TempRange(0x72)[TR1]
C.4.1.2 JT2 (Offset 2)
JT2 is the upper bound of the low temperature charging range and the lower bound of standard
temperature charging range 1. If Temperature is between JT1 and JT2, then the [TR2] flag in TempRange
is set, Charging Voltage is set to LT Chg Voltage and ChargingCurrent is set to LT Chg Current1, LT
Chg Current2, or LT Chg Current3, depending on cell voltage (see Section 2.5.5).
Table C-83. JT2
Subclass
ID
Subclass
Name
Offset Name
JT2
Format
Size in Bytes Min Value Max Value Default Value Unit
2 –400 1200 120 0.1°C
32
Charge Temp
Cfg
2
Integer
Related Variables
•
•
•
•
•
•
•
DF:Charge Control:Charge Temp Cfg(32):JT1(0)
DF:Charge Control:Charge Cfg(34):LT Chg Voltage(0)
DF:Charge Control:Charge Cfg(34):LT Chg Current1..3(2..6)
SBS:Temperature(0x008)
SBS:ChargingCurrent(0x14)
SBS:ChargingVoltage(0x15)
SBS:TempRange(0x72)[TR2]
C.4.1.3 JT2a (Offset 4)
JT2a is the upper bound of the standard temperature charging range1 and the lower bound of standard
charging temperature range 2. If Temperature is between JT2 and JT2a, then the [TR2A] flag in
TempRange is set, Charging Voltage is set to ST1 Chg Voltage and ChargingCurrent is set to ST1 Chg
Current1, ST1 Chg Current2, or ST1 Chg Current3, depending on cell voltage (see Section 2.5.5 ).
134
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Table C-84. JT2a
Subclass
ID
Subclass
Name
Offset Name
JT2a
Format
Size in Bytes Min Value Max Value Default Value Unit
32
Charge Temp
Cfg
4
Integer
2
–400
1200
300
0.1°C
Related Variables:
•
•
•
•
•
•
•
DF:Charge Control:Charge Temp Cfg(32):JT2(2)
DF:Charge Control:Charge Cfg(34):ST1 Chg Voltage(8)
DF:Charge Control:Charge Cfg(34):ST1 Chg Current1..3(10..14)
SBS:Temperature(0x008)
SBS:ChargingCurrent(0x14)
SBS:ChargingVoltage(0x15)
SBS:TempRange(0x72)[TR2A]
C.4.1.4 JT3 (Offset 6)
JT3 is the upper bound of the standard temperature charging range 2, and the lower bound of high
temperature charging range. If Temperature is between JT2a and JT3, then [TR3] flag in TempRange is
set, Charging Voltage is set to ST2 Chg Voltage and ChargingCurrent is set to ST2 Chg Current1, ST2
Chg Current2, or ST2 Chg Current3, depending on cell voltage (see Section 2.5.5).
If Temperature is greater than JT3 and charging did not start ([DSG] = 1), then charging is inhibited from
starting.
Table C-85. JT3
Subclass
ID
Subclass
Name
Offset Name
JT3
Format
Size in Bytes Min Value Max Value Default Value Unit
2 –400 1200 450 0.1°C
32
Charge Temp
Cfg
6
Integer
Related Variables:
•
•
•
•
•
•
•
•
DF:Charge Control:Charge Temp Cfg(32):JT2a(4)
DF:Charge Control:Charge Cfg(34):ST2 Chg Voltage(16)
DF:Charge Control:Charge Cfg(34):ST2 Chg Current1..3(18..22)
SBS:Temperature(0x008)
SBS:ChargingCurrent(0x14)
SBS:ChargingVoltage(0x15)
SBS:BatteryStatus(0x16)[DSG]
SBS:TempRange(0x72)[TR3]
C.4.1.5 JT4 (Offset 8)
JT4 is the upper bound of the high temperature charging range. If Temperature is between JT3 and JT4,
then the [TR4] flag in TempRange is set, Charging Voltage is set to HT Chg Voltage and Charging
Current is set to HT Chg Current1, HT Chg Current2, or HT Chg Current3, depending on cell voltage
(see Section 2.5.5).
If Temperature is greater than JT4 then the [TR5] flag in TempRange is set. If bq20z60-R1/bq20z65-R1 is
in charge mode ([DSG] = 0), charging is suspended, [CHGSUSP] flag in ChargingStatus is set, and
ChargingCurrent and ChargingVoltage are set to 0.
Table C-86. JT4
Subclass
ID
Size in
Bytes
Subclass Name
Offset
Name
Format
Min Value Max Value Default Value Unit
32
Charge Temp Cfg
8
JT4
Integer
2
-400
1200
550
0.1°C
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Related Variables:
•
•
•
•
•
•
•
•
•
DF:Charge Control:Charge Temp Cfg(32):JT3(6)
DF:Charge Control:Charge Cfg(34):HT Chg Voltage(24)
DF:Charge Control:Charge Cfg(34):HT Chg Current1..3(26..30)
SBS:Temperature(0x008)
SBS:ChargingCurrent(0x14)
SBS:ChargingVoltage(0x15)
SBS:BatteryStatus(0x16)[DSG]
SBS:ChargingStatus(0x55)[CHGSUSP]
SBS:TempRange(0x72)[TR4][TR5]
C.4.1.6 Temp Hys (Offset 10)
Temp Hys is used to make sure that transitions between temperature ranges are not affected by small
transients on the temperature reading. For example, if the current temperature range is the standard
temperature range 2 ([TR3] is set) and Temperature goes above JT3 then the high temperature range is
entered ([TR3] is cleared and [TR4] is set). Temperature has to fall below JT3 - Temp Hys for the
bq20z60-R1/bq20z65-R1 to go back to the standard temperature range 2.
Table C-87. Temp Hys
Subclass
ID
Size in
Bytes
Subclass Name
Offset
Name
Format
Min Value Max Value Default Value Unit
0 100 10 0.1°C
32
Charge Temp Cfg
8
Temp Hys
Integer
2
Related Variables:
•
•
•
•
•
•
•
DF:Charge Control:Charge Temp Cfg(32):JT1(0)
DF:Charge Control:Charge Temp Cfg(32):JT2(2)
DF:Charge Control:Charge Temp Cfg(32):JT2a(4)
DF:Charge Control:Charge Temp Cfg(32):JT3(6)
DF:Charge Control:Charge Temp Cfg(32):JT3(8)
SBS:Temperature(0x008)
SBS:TempRange(0x72)
C.4.2 Pre-Charge Cfg (Subclass 33)
C.4.2.1 Pre-Chg Voltage Threshold (Offset 0)
The bq20z60-R1/bq20z65-R1 enters pre-charge mode and sets the [PCHG] flag in ChargingStatus if any
CellVoltage4..1 drops below the Pre-chg Voltage Threshold. In this mode, Charging Voltage is set to LT
Chg Voltage, and Charging Current is set to Pre-chg Current.
Table C-88. Pre-Chg Voltage Threshold
Subclass
ID
Size in
Bytes
Subclass Name Offset Name
Format
Min Value Max Value Default Value Unit
0 20,000 3000 mV
33
Pre-Charge Cfg
0
Pre-Chg Voltage
Threshold
Integer
2
Related Variables:
•
•
•
•
•
•
DF:Charge Control:Charge Cfg(34):LT Chg Voltage(0)
DF:Charge Control:Pre-Charge Cfg(33):Pre-chg Current(4)
SBS:CellVoltage4(0x3c)
SBS:CellVoltage3(0x3d)
SBS:CellVoltage2(0x3e)
SBS:CellVoltage1(0x3f)
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•
SBS:ChargingStatus(0x55)[PCHG]
C.4.2.2 Pre-Chg Recovery Voltage (Offset 2)
The bq20z60-R1/bq20z65-R1 leaves pre-charge mode and clears the [PCHG] flag in ChargingStatus if all
CellVoltage4..1 are equal to or higher than the Pre-Chg Recovery Voltage threshold.
Table C-89. Pre-Chg Recovery Voltage
Subclass
ID
Size in
Bytes
Default
Value
Subclass Name Offset
Pre-Charge Cfg
Name
Format
Min Value Max Value
20,000
Unit
33
2
Pre-Chg
Integer
2
0
3100
mV
Recovery Voltage
Related Variables:
•
•
•
•
•
SBS:CellVoltage4(0x3c)
SBS:CellVoltage3(0x3d)
SBS:CellVoltage2(0x3e)
SBS:CellVoltage1(0x3f)
SBS:ChargingStatus(0x55)[PCHG]
C.4.2.3 Pre-chg Current (Offset 4)
The bq20z60-R1/bq20z65-R1 sets the ChargingCurrent to the Pre-chg Current value when in pre-charge
mode.
Table C-90. Pre-chg Current
Subclass
ID
Size in
Bytes
Default
Value
Subclass Name Offset
Pre-Charge Cfg
Name
Format
Min Value Max Value
2000
Unit
33
4
Pre-chg Current
Integer
2
0
250
mA
Related Variables:
SBS:ChargingCurrent(0x14)
•
C.4.3 Charge Cfg (Subclass 34)
C.4.3.1 LT Chg Voltage (Offset 0)
The bq20z60-R1/bq20z65-R1 sets ChargingVoltage to the LT Chg Voltage value when Temperature in is
the low temperature charging range ([TR2] = 1).
Table C-91. LT Chg Voltage
Subclass
ID
Size in
Bytes
Default
Value
Subclass Name Offset Name
Charge Cfg LT Chg Voltage
Format
Min Value Max Value
20,000
Unit
34
0
Integer
2
0
12,000
mV
Related Variables:
•
•
•
SBS: Temperature(0x008)
SBS: ChargingVoltage(0x15)
SBS:TempRange(0x72)[TR2]
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C.4.3.2 LT Chg Current1 (Offset 2)
The bq20z60-R1/bq20z65-R1 sets ChargingCurrent to the LT Chg Current1 value when Temperature is
in the low temperature charging range ([TR2] = 1) and max(CellVoltage4..1) is in the CVR1 range.
Table C-92. LT Chg Current1
Subclass
ID
Subclass
Name
Default
Value
Offset Name
LT Chg Current1
Format
Size in Bytes Min Value Max Value
20,000
Unit
34
Charge Cfg
2
Integer
2
0
250
mA
Related Variables:
•
•
•
•
SBS:Temperature(0x008)
SBS:ChargingCurrent(0x14)
SBS:CellVoltage4..1(0x3c..0x3f)
SBS:TempRange(0x72)[TR2]
C.4.3.3 LT Chg Current2 (Offset 4)
The bq20z60-R1/bq20z65-R1 sets ChargingCurrent to the LT Chg Current2 value when Temperature in
the low temperature charging range ([TR2] = 1) and max(CellVoltage4..1) is in the CVR2 range.
Table C-93. LT Chg Current2
Subclass
ID
Size in
Bytes
Default
Value
Subclass Name Offset Name
Format
Min Value Max Value
20,000
Unit
34
Charge Cfg LT Chg Current2 Integer
4
2
0
250
mA
Related Variables:
•
•
•
•
SBS:Temperature(0x008)
SBS:ChargingCurrent(0x14)
SBS:CellVoltage4..1(0x3c..0x3f)
SBS:TempRange(0x72)[TR2]
C.4.3.4 LT Chg Current3 (Offset 6)
The bq20z60-R1/bq20z65-R1 sets ChargingCurrent to the LT Chg Current3 value when Temperature in
the low temperature charging range ([TR2] = 1) and max(CellVoltage4..1) is in the CVR3 range.
Table C-94. LT Chg Current3
Subclass
ID
Subclass
Name
Default
Value
Offset Name
LT Chg Current3
Format
Size in Bytes Min Value Max Value
20,000
Unit
34
Charge Cfg
6
Integer
2
0
250
mA
Related Variables:
•
•
•
•
SBS:Temperature(0x008)
SBS:ChargingCurrent(0x14)
SBS:CellVoltage4..1(0x3c..0x3f)
SBS:TempRange(0x72)[TR2]
C.4.3.5 ST1 Chg Voltage (Offset 8)
The bq20z60-R1/bq20z65-R1 sets ChargingVoltage to the ST1 Chg Voltage value when Temperature is
in the standard temperature charging range 1 ([TR2A] = 1).
Table C-95. ST1 Chg Voltage
Subclass
ID
Size in
Bytes
Default
Value
Subclass Name Offset Name
Format
Min Value Max Value
20,000
Unit
34
Charge Cfg ST1 Chg Voltage Integer
8
2
0
16,800
mV
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Related Variables:
•
•
•
SBS:Temperature(0x008)
SBS:ChargingVoltage(0x15)
SBS:TempRange(0x72)[TR2A]
C.4.3.6 ST1 Chg Current1 (Offset 10)
The bq20z60-R1/bq20z65-R1 sets ChargingCurrent to the ST1 Chg Current1 value when Temperature is
in the standard temperature charging range ([TR2A] = 1) and max(CellVoltage4..1) is in the CVR1 range.
Table C-96. ST1 Chg Current1
Subclass
ID
Subclass
Name
Default
Value
Offset Name
Format
Size in Bytes Min Value Max Value
20,000
Unit
34
Charge Cfg
10 ST1 Chg Current1 Integer
2
0
4,000
mA
Related Variables:
•
•
•
•
SBS:Temperature(0x008)
SBS:ChargingCurrent(0x14)
SBS:CellVoltage4..1(0x3c..0x3f)
SBS:TempRange(0x72)[TR2A]
C.4.3.7 ST1 Chg Current2 (Offset 12)
The bq20z60-R1/bq20z65-R1 sets ChargingCurrent to the ST1 Chg Current2 value when Temperature is
in the standard temperature charging range ([TR2A] = 1) and max( CellVoltage4..1) is in the CVR2 range.
Table C-97. ST1 Chg Current2
Subclass
ID
Subclass
Name
Default
Value
Offset Name
Format
Size in Bytes Min Value Max Value
20,000
Unit
34
Charge Cfg
12 ST1 Chg Current2 Integer
2
0
4000
mA
Related Variables:
•
•
•
•
SBS:Temperature(0x008)
SBS:ChargingCurrent(0x14)
SBS:CellVoltage4..1(0x3c..0x3f)
SBS:TempRange(0x72)[TR2A]
C.4.3.8 ST1 Chg Current3 (Offset 14)
The bq20z60-R1/bq20z65-R1 sets ChargingCurrent to the ST1 Chg Current3 value when Temperature is
in the standard temperature charging range ([TR2A] = 1) and max(CellVoltage4..1) is in the CVR3 range.
Table C-98. ST1 Chg Current3
Subclass
ID
Subclass
Name
Default
Value
Offset Name
Format
Size in Bytes Min Value Max Value
Unit
34
Charge Cfg
14 ST1 Chg Current3 Integer
2
0
20,000
4000
mA
Related Variables:
•
•
•
•
SBS:Temperature(0x008)
SBS:ChargingCurrent(0x14)
SBS:CellVoltage4..1(0x3c..0x3f)
SBS:TempRange(0x72)[TR2A]
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C.4.3.9 ST2 Chg Voltage (Offset 16)
The bq20z60-R1/bq20z65-R1 sets ChargingVoltage to the ST2 Chg Voltage value when Temperature is
in the standard temperature charging range 2 ([TR3] = 1).
Table C-99. ST2 Chg Voltage
Subclass
ID
Subclass
Name
Default
Value
Offset Name
16 ST2 Chg Voltage
Format
Size in Bytes Min Value Max Value
20,000
Unit
34
Charge Cfg
Integer
2
0
16,800
mV
Related Variables:
•
•
•
SBS:Temperature(0x008)
SBS:ChargingVoltage(0x15)
SBS:TempRange(0x72)[TR3]
C.4.3.10 ST2 Chg Current1 (Offset 18)
The bq20z60-R1/bq20z65-R1 sets ChargingCurrent to the ST2 Chg Current1 value when Temperature is
in the standard temperature charging range 2 ([TR3] = 1) and max(CellVoltage4..1) is in the CVR1 range.
Table C-100. ST2 Chg Current1
Subclass
ID
Subclass
Name
Default
Value
Offset Name
Format
Size in Bytes Min Value Max Value
20,000
Unit
34
Charge Cfg
18 ST2 Chg Current1 Integer
2
0
4000
mA
Related Variables:
•
•
•
•
SBS:Temperature(0x008)
SBS:ChargingCurrent(0x14)
SBS:CellVoltage4..1(0x3c..0x3f)
SBS:TempRange(0x72)[TR3]
C.4.3.11 ST2 Chg Current2 (Offset 20)
The bq20z60-R1/bq20z65-R1 sets ChargingCurrent to the ST2 Chg Current2 value when Temperature is
in the standard temperature charging range 2 ([TR3] = 1) and max(CellVoltage4..1) is in the CVR2 range.
Table C-101. ST2 Chg Current2
Subclass
ID
Subclass
Name
Default
Value
Offset Name
Format
Size in Bytes Min Value Max Value
20,000
Unit
34
Charge Cfg
20 ST2 Chg Current2 Integer
2
0
4000
mA
Related Variables:
•
•
•
•
SBS:Temperature(0x008)
SBS:ChargingCurrent(0x14)
SBS:CellVoltage4..1(0x3c..0x3f)
SBS:TempRange(0x72)[TR3]
C.4.3.12 ST2 Chg Current3 (Offset 22)
The bq20z60-R1/bq20z65-R1 sets ChargingCurrent to the ST2 Chg Current3 value when Temperature is
in the standard temperature charging range 2 ([TR3] = 1) and max(CellVoltage4..1) is in the CVR3 range.
Table C-102. ST2 Chg Current3
Subclass
ID
Subclass
Name
Default
Value
Offset Name
Format
Size in Bytes Min Value Max Value
20,000
Unit
34
Charge Cfg
22 ST2 Chg Current3 Integer
2
0
4000
mA
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Related Variables:
•
•
•
•
SBS:Temperature(0x008)
SBS:ChargingCurrent(0x14)
SBS:CellVoltage4..1(0x3c..0x3f)
SBS:TempRange(0x72)[TR3]
C.4.3.13 HT Chg Voltage (Offset 24)
The bq20z60-R1/bq20z65-R1 sets ChargingVoltage to the HT Chg Voltage value when Temperature is in
the high temperature charging range ([TR4] = 1).
Table C-103. HT Chg Voltage
Subclass
ID
Subclass
Name
Default
Value
Offset Name
24 HT Chg Voltage
Format
Size in Bytes Min Value Max Value
20,000
Unit
34
Charge Cfg
Integer
2
0
16,760
mV
Related Variables:
•
•
•
SBS:Temperature(0x008)
SBS:ChargingVoltage(0x15)
SBS:TempRange(0x72)[TR4]
C.4.3.14 HT Chg Current1 (Offset 26)
The bq20z60-R1/bq20z65-R1 sets ChargingCurrent to the HT Chg Current1 value when Temperature is
in the high temperature charging range ([TR4] = 1) and max(CellVoltage4..1) is in the CVR1 range.
Table C-104. HT Chg Current1
Subclass
ID
Subclass
Name
Default
Value
Offset Name
26 HT Chg Current1
Format
Size in Bytes Min Value Max Value
20,000
Unit
34
Charge Cfg
Integer
2
0
3800
mA
Related Variables:
•
•
•
•
SBS:Temperature(0x008)
SBS:ChargingCurrent(0x14)
SBS:CellVoltage4..1(0x3c..0x3f)
SBS:TempRange(0x72)[TR4]
C.4.3.15 HT Chg Current2 (Offset 28)
The bq20z60-R1/bq20z65-R1 sets ChargingCurrent to the HT Chg Current2 value when Temperature is
in the high temperature charging range ([TR4] = 1) and max(CellVoltage4..1) is in the CVR2 range.
Table C-105. HT Chg Current2
Subclass
ID
Subclass
Name
Default
Value
Offset Name
28 HT Chg Current2
Format
Size in Bytes Min Value Max Value
20,000
Unit
34
Charge Cfg
Integer
2
0
3800
mA
Related Variables:
•
•
•
•
SBS:Temperature(0x008)
SBS:ChargingCurrent(0x14)
SBS:CellVoltage4..1(0x3c..0x3f)
SBS:TempRange(0x72)[TR4]
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C.4.3.16 HT Chg Current3 (Offset 30)
The bq20z60-R1/bq20z65-R1 sets ChargingCurrent to the HT Chg Current3 value when Temperature is
in the high temperature charging range ([TR4] = 1) and max(CellVoltage4..1) is in the CVR3 range.
Table C-106. HT Chg Current3
Subclass
ID
Subclass
Name
Default
Value
Offset Name
30 HT Chg Current3
Format
Size in Bytes Min Value Max Value
20,000
Unit
34
Charge Cfg
Integer
2
0
3800
mA
Related Variables:
•
•
•
•
SBS:Temperature(0x008)
SBS:ChargingCurrent(0x14)
SBS:CellVoltage4..1(0x3c..0x3f)
SBS:TempRange(0x72)[TR4]
C.4.3.17 Cell Voltage Threshold1 (Offset 32)
The bq20z60-R1/bq20z65-R1 is in cell voltage range 1 (CVR1) when max(CellVoltage4..1) < Cell Voltage
Threshold1.
Table C-107. Cell Voltage Threshold1
Subclass
ID
Subclass
Name
Offset
Name
Format
Size in Bytes Min Value Max Value Default Value Unit
5000 3900 mV
34
Charge Cfg
32
Cell Voltage
Threshold1
Integer
2
0
Related Variables:
SBS:CellVoltage4..1(0x3c..0x3f)
•
C.4.3.18 Cell Voltage Threshold2 (Offset 34)
The bq20z60-R1/bq20z65-R1 enters cell voltage range 2 (CVR2) when Cell Voltage Threshold1 <
max(CellVoltage4..1) < Cell Voltage Threshold2. The bq20z60-R1/bq20z65-R1 enters cell voltage range
3 (CVR3) when max(CellVoltage4..1) > Cell Voltage Threshold2.
Table C-108. Cell Voltage Threshold2
Subclass
ID
Subclass
Name
Default
Value
Offset Name
Format
Size in Bytes Min Value Max Value
5000
Unit
34
Charge Cfg
34
Cell Voltage
Threshold2
Integer
2
0
4000
mV
Related Variables:
•
•
DF:Charge Control:Charge Cfg(34):Cell Voltage Threshold1(32)
SBS:CellVoltage4..1(0x3c..0x3f)
C.4.3.19 Cell Voltage Thresh Hys (Offset 36)
Cell Voltage Thresh Hys is used to make sure that transitions between cell voltage ranges are not
affected by small transients. For example, if the current cell voltage range is CVR2 and cell voltage goes
above Cell Voltage Threshold2 then CVR3 is entered. Cell voltage has to fall below Cell Voltage
Threshold2 – Cell Voltage Thresh Hys for the bq20z60-R1/bq20z65-R1 to go back to CVR2 range.
Table C-109. Cell Voltage Thresh Hys
Subclass
ID
Subclass
Name
Default
Value
Offset Name
Format
Size in Bytes Min Value Max Value
1000
Unit
34
Charge Cfg
36
Cell Voltage
Thresh Hys
Integer
2
0
10
mV
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Related Variables:
•
•
•
SBS:CellVoltage4..1(0x3c..0x3f)
DF:Charge Control:Charge Cfg(34):Cell Voltage Threshold1(32)
DF:Charge Control:Charge Cfg(34):Cell Voltage Threshold2(34)
C.4.4 Termination Cfg. (Subclass 36)
C.4.4.1 Maintenance Current (Offset 0)
ChargingCurrent is set to Maintenance Current if a primary charge termination is detected or
RelativeStateOfCharge > TCA Set %
Table C-110. Maintenance Current
Subclass
ID
Size in
Bytes
Subclass Name
Offset
Name
Format
Min Value Max Value Default Value Unit
1000 mA
36
Termination Cfg.
0
Maintenance Integer
Current
2
0
0
Related Variables:
•
•
•
•
DF:Charge Control:Termination Cfg.(36):TCA Set %(9)
SBS:RelativeStateOfCharge(0x00d)
SBS:ChargingCurrent(0x14)
SBS:ChargingStatus(0x55)[MCHG]
C.4.4.2 Taper Current (Offset 2)
If battery Current falls below Taper Current for two consecutive Current Taper Window time periods
during charging and Voltage is equal to or higher than Charging Voltage – Taper Voltage, the
bq20z60-R1/bq20z65-R1 recognizes valid primary charge termination.
Table C-111. Taper Current
Subclass
ID
Min
Value
Default
Value
Subclass Name Offset Name
Format
Size in Bytes
Max Value
Unit
36
Termination Cfg.
2
Taper
Integer
2
0
1000
250
mA
Current
Related Variables:
•
•
•
•
DF:Charge Control:Termination Cfg.(36):Taper Voltage(6)
DF:Charge Control:Termination Cfg.(36):Current Taper Window(8)
SBS:Voltage(0x009)
SBS:Current(0x00a)
C.4.4.3 Taper Voltage (Offset 6)
For a valid primary charge termination, the taper voltage condition needs to be met. The taper voltage
condition is either cell voltage based or pack voltage based, depending on [CELL_TAPER] bit setting in
Operation Cfg C.
•
•
[CELL_TAPER] = 1: Max (CellVoltage4..1) + Taper Voltage ³ ChargingVoltage / number of cells
[CELL_TAPER] = 0: Voltage + Taper Voltage ³ ChargingVoltage
Table C-112. Taper Voltage
Subclass
ID
Subclass
Name
Size in
Bytes
Default
Value
Offset
Name
Format
Min Value Max Value
1000
Unit
36
Termination
Cfg.
6
Taper Voltage Integer
2
0
75
mV
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Related Variables:
•
•
•
DF:Configuration:Registers(64):Operation Cfg C(4)[CELL_TAPER]
SBS:CellVoltage4..1(0x3c..0x3f)
SBS:ChargingVoltage(0x15)
C.4.4.4 Current Taper Window (Offset 8)
If battery Current falls below Taper Current for two consecutive Current Taper Window time periods
during charging and Voltage is equal to or higher than Charging Voltage – Taper Voltage, the
bq20z60-R1/bq20z65-R1 recognizes valid primary charge termination.
Table C-113. Current Taper Window
Subclass
Name
Size in
Bytes
Max
Value
Subclass ID
Offset Name
Format
Min Value
Default Value Unit
40
36
Termination
Cfg.
8
Current Taper
Window
Unsigned
integer
1
0
240
s
Related Variables:
•
•
•
•
DF:Charge Control:Termination Cfg.(36):Taper Current(2)
DF:Charge Control:Termination Cfg.(36):Taper Voltage(6)
SBS:Voltage(0x009)
SBS:Current(0x00a)
C.4.4.5 TCA Set % (Offset 9)
When set between 0% and 100%, [TCA] in BatteryStatus is set if RelativeStateOfCharge is equal to or
above TCA Set %. Set to –1 to disable this function. If set to –1, the [MCHG] flag in ChargingStatus and
the [TCA} flag in BatteryStatus are set on primary charge termination and ChargingCurrent is set to
Maintenance Current.
Table C-114. TCA Set %
Subclass ID Subclass Name
36 Termination Cfg.
Offset
Name
Format
Size in Bytes Min Value Max Value Default Value Unit
–1 100 –1
9
TCA Set % Integer
1
%
Related Variables:
•
•
•
•
•
•
DF:Charge Control:Termination Cfg.(36):Maintenance Current(0)
DF:Charge Control:Termination Cfg.(36):TCA Clear %(10)
SBS:RelativeStateOfCharge(0x00d)
SBS:ChargingCurrent(0x14)
SBS:BatteryStatus(0x16)[TCA]
SBS:ChargingStatus(0x55)[MCHG]
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C.4.4.6 TCA Clear % (Offset 10)
When set between 0% and 100%, [TCA] in BatteryStatus is cleared if RelativeStateOfCharge is below
TCA Clear %. Set to –1 to disable this function.
Table C-115. TCA Clear %
Subclass
ID
Size in
Bytes
Subclass Name
Offset
Name
Format
Min Value Max Value Default Value Unit
–1 100 95
36
Termination Cfg.
10
TCA Clear % Integer
1
%
Related Variables:
•
•
•
DF:Charge Control:Termination Cfg.(36):TCA Set %(9)
SBS:RelativeStateOfCharge(0x00d)
SBS:BatteryStatus(0x16)[TCA]
C.4.4.7 FC Set % (Offset 11)
When set between 0% and 100%, [FC] in BatteryStatus is set if RelativeStateOfCharge is equal to or
above FC Set %. Set to –1 to disable this function.
Table C-116. FC Set %
Subclass
ID
Size in
Bytes
Subclass Name
Offset
Name
Format
Min Value Max Value Default Value Unit
–1 100 –1
36
Termination Cfg.
11
FC Set %
Integer
1
%
Related Variables:
•
•
•
DF:Charge Control:Termination Cfg.(36):FC Clear %(12)
SBS:RelativeStateOfCharge(0x00d)
SBS:BatteryStatus(0x16)[FC]
C.4.4.8 FC Clear % (Offset 12)
When set between 0% and 100%, [FC] in BatteryStatus is cleared if RelativeStateOfCharge reaches or
falls below FC Clear %. Set to –1 to disable this function, however, it is not recommended to set
FC Clear % to –1.
Table C-117. FC Clear %
Subclass
ID
Size in
Bytes
Subclass Name
Offset
Name
Format
Min Value Max Value Default Value Unit
–1 100 98
36
Termination Cfg.
12
FC Clear %
Integer
1
%
Related Variables:
•
•
•
DF:Charge Control:Termination Cfg.(36):FC Set %(11)
SBS:RelativeStateOfCharge(0x00d)
SBS:BatteryStatus(0x16)[FC]
C.4.5 Cell Balancing Cfg (Subclass 37)
C.4.5.1 Min Cell Deviation (Offset 0)
This value defines the conversion factor for calculating cell balancing time per cell in units of balance time
per mAh before the bq20z60-R1/bq20z65-R1 starts balancing cell capacity during charging. If
Min Cell Deviation is set to 0, cell balancing is disabled.
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Table C-118. Min Cell Deviation
Subclass
ID
Size in
Bytes
Default
Value
Subclass Name Offset Name
Format
Min Value Max Value
65,535
Unit
37
Cell Balancing
Cfg
0
Min Cell
Deviation
Unsigned
integer
2
0
1350
s/mAh
C.4.6 Charging Faults (Subclass 38)
C.4.6.1 Over Charging Voltage (Offset 0)
If battery pack Voltage is equal to or greater than ST2 Chg Voltage + Over Charging Voltage for a time
period greater than Over Charging Volt Time, the [OCHGV] flag is set, and the CHG FET and ZVCHG
FET (if used) are turned off if [OCHGV] is also set in Charge Fault Cfg.
Table C-119. Over Charging Voltage
Subclass
ID
Subclass
Name
Min
Value
Offset Name
Format
Size in Bytes
Max Value Default Value Unit
3000 500 mV
38
Charging Faults
0
Over Charging
Voltage
Integer
2
0
Related Variables:
•
•
•
•
•
•
DF:Charge Control:Charge Cfg(34):ST2 Chg Voltage(16)
DF:Charge Control:Charging Faults(38):Over Charging Volt Time(2)
DF:Charge Control:Charging Faults(38):Charge Fault Cfg(21)[OCHGV]
SBS:Voltage(0x009)
SBS:BatteryStatus(0x16)[TCA]
SBS:ChargingStatus(0x55)[OCHGV]
C.4.6.2 Over Charging Volt Time (Offset 2)
If battery pack Voltage is equal to or greater than ST2 Chg Voltage + Over Charging Voltage for a time
period greater than Over Charging Volt Time, the [OCHGV] flag is set, and the CHG FET and ZVCHG
FET (if used) are turned off if [OCHGV] is also set in Charge Fault Cfg. The bq20z60-R1/bq20z65-R1
recovers if the battery pack Voltage is equal to or below ST2 Chg Voltage.
Table C-120. Over Charging Volt Time
Subclass
ID
Subclass
Name
Min
Value
Max
Value
Default
Value
Offset
Name
Format
Size in Bytes
Unit
38
Charging Faults
2
Over Charging Volt
Time
Unsigned integer
1
0
240
0
s
Related Variables:
•
•
•
•
•
DF:Charge Control:Charge Cfg(34):ST2 Chg Voltage(16)
DF:Charge Control:Charging Faults(38):Charge Fault Cfg(21)[OCHGV]
SBS:Voltage(0x009)
SBS:BatteryStatus(0x16)[TCA]
SBS:ChargingStatus(0x55)[OCHGV]
C.4.6.3 Over Charging Current (Offset 3)
If the current is equal to or greater than the sum of ChargingCurrent and Over Charging Current for a
time period greater than Over Charging Curr Time, the [OCHGI] flag in ChargingStatus set and, if
[OCHGI] in Charge Fault Cfg is set, the CHG FET turns off and the ZVCHG FET (if used) is turned on. If
the ZVCHG FET is not used the CHG FET remains on, regardless of the bits set in Charge Fault Cfg
because the CHG FET acts as the ZVCHG FET.
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Table C-121. Over Charging Current
Subclass
ID
Size in
Bytes
Subclass Name
Offset
Name
Format
Min Value Max Value Default Value Unit
0 2000 500 mA
38
Charging Faults
3
Over
Integer
2
Charging
Current
Related Variables:
•
•
•
•
•
•
DF:Charge Control:Charging Faults(38):Over Charging Curr Time(5)
DF:Charge Control:Charging Faults(38):Charge Fault Cfg(21)[OCHGI]
SBS:Current(0x00a)
SBS:ChargingCurrent(0x14)
SBS:BatteryStatus(0x16)[TCA]
SBS:ChargingStatus(0x55)[OCHGI]
C.4.6.4 Over Charging Curr Time (Offset 5)
If Current is equal to or greater than the sum of ChargingCurrent and Over Charging Current for a time
period greater than Over Charging Curr Time, the [OCHGI] flag in ChargingStatus is set and, if [OCHGI]
in Charge Fault Cfg is set, the CHG FET turns off and the ZVCHG FET (if used) is turned on. If the
ZVCHG FET is not used, the CHG FET remains on, regardless of the bits set in Charge Fault Cfg
because the CHG FET acts as the ZVCHG FET. The bq20z60-R1/bq20z65-R1 recovers if
AverageCurrent is equal to or lower than the Over Charging Curr Recov value.
Table C-122. Over Charging Curr Time
Subclass
ID
Size in
Bytes
Subclass Name
Offset
Name
Format
Min Value Max Value Default Value Unit
38
Charging Faults
5
Over
Charging
Curr Time
Unsigned
integer
1
0
240
2
s
Related Variables:
•
•
•
•
•
•
•
•
DF:Charge Control:Charging Faults(38):Over Charging Current(3)
DF:Charge Control:Charging Faults(38):Over Charging Curr Recov(6)
DF:Charge Control:Charging Faults(38):Charge Fault Cfg(21)[OCHGI]
SBS:Current(0x00a)
SBS:AverageCurrent(0x00b)
SBS:ChargingCurrent(0x14)
SBS:BatteryStatus(0x16)[TCA]
SBS:ChargingStatus(0x55)[OCHGI]
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C.4.6.5 Over Charging Curr Recov (Offset 6)
The bq20z60-R1/bq20z65-R1 recovers from an overcharging current fault if AverageCurrent is equal to or
lower than Over Charging Curr Recov. On recovery, the [OCHGI] flag in ChargingStatus is cleared, and
the CHG and ZVCHG FETs return to their previous states.
Table C-123. Over Charging Curr Recov
Subclass
ID
Size in
Bytes
Subclass Name
Offset
Name
Format
Min Value Max Value Default Value Unit
0 2000 100 mA
38
Charging Faults
6
Over
Integer
2
Charging
Curr Recov
Related Variables:
•
•
•
•
•
•
DF:Charge Control:Charging Faults(38):Over Charging Current(3)
DF:Charge Control:Charging Faults(38):Over Charging Curr Time(5)
SBS:Current(0x00a)
SBS:ChargingCurrent(0x14)
SBS:BatteryStatus(0x16)[TCA]
SBS:ChargingStatus(0x55)[OCHGI]
C.4.6.6 Depleted Voltage (Offset 8)
The bq20z60-R1/bq20z65-R1 enters a depleted voltage fault and sets [XCHGLV] if the charger is present
(PackVoltage > Charger Present) and pack Voltage is equal to or lower than Depleted Voltage for a
period equal to or greater than Depleted Voltage Time. The DSG FET is turned off and the CHG and
ZVCHG FETs are set according to the [ZVCHG1] and [ZVCHG0] bits if [CS_XCHGLV] is set in
Charge Fault Cfg.
Table C-124. Depleted Voltage
Subclass
ID
Size in
Bytes
Default
Value
Subclass Name Offset
Charging Faults
Name
Format
Min Value
Max Value
Unit
38
8
Depleted
Voltage
Integer
2
0
16,000
8000
mV
Related Variables:
•
•
•
•
•
•
DF:Charge Control:Charging Faults(38):Depleted Voltage Time(10)
DF:Charge Control:Charging Faults(38):Charge Fault Cfg(21)[CS_XCHGLV]
DF:Power:Power(68):Charger Present(8)
SBS:Voltage(0x009)
SBS:PackVoltage(0x5a)
SBS:ChargingStatus(0x55)[XCHGLV]
C.4.6.7 Depleted Voltage Time (Offset 10)
The bq20z60-R1/bq20z65-R1 enters a depleted voltage fault and sets [XCHGLV] if the charger is present
and pack Voltage is equal to or lower than Depleted Voltage for a period equal to or greater than
Depleted Voltage Time. If [CS_XCHGLV] is set in Charge Fault Cfg, the DSG FET is turned off and the
CHG and ZVCHG FETs are set according to their pre-charge settings.
Table C-125. Depleted Voltage Time
Subclass
ID
Size in
Bytes
Min
Value
Default
Value
Subclass Name Offset Name
Format
Max Value
Unit
38
Charging Faults
10
Depleted Voltage
Time
Unsigned
integer
1
0
240
2
s
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Related Variables:
•
•
•
•
•
DF:Charge Control:Charging Faults(38):Depleted Voltage(8)
DF:Charge Control:Charging Faults(38):Depleted Recovery(11)
DF:Charge Control:Charging Faults(38):Charge Fault Cfg(21)[CS_XCHGLV]
SBS:Voltage(0x009)
SBS:ChargingStatus(0x55)[XCHGLV]
C.4.6.8 Depleted Recovery (Offset 11)
The bq20z60-R1/bq20z65-R1 recovers from a depleted voltage fault if pack Voltage is equal to or higher
than the Depleted Recovery threshold. On recovery, [OCHGLV] is reset and the DSG FET, CHG FET
and ZVCHG FET return to their previous states.
Table C-126. Depleted Recovery
Subclass
ID
Size in
Bytes
Subclass Name
Offset
Name
Format
Min Value Max Value Default Value Unit
0 16,000 8500 mV
38
Charging Faults
11
Depleted
Recovery
Integer
2
Related Variables:
•
•
•
DF:Charge Control:Charging Faults(38):Depleted Voltage Time(10)
SBS:Voltage(0x009)
SBS:ChargingStatus(0x55)[XCHGLV]
C.4.6.9 Over Charge Capacity (Offset 13)
The bq20z60-R1/bq20z65-R1 enters an overcharge fault and sets the [OC] flag in ChargingStatus if the
internally counted remaining capacity exceeds FullChargeCapacity + Over Charge Capacity. The CHG
FET and ZVCHG FET (if used) are also turned off if the [OC] bit is set in Charge Fault Cfg.
Table C-127. Over Charge Capacity
Subclass
ID
Size in
Bytes
Subclass Name
Offset Name
Format
Min Value Max Value Default Value Unit
0 4000 300 mAh
38
Charging Faults
13
Over Charge
Capacity
Integer
2
Related Variables:
•
•
•
•
DF:Charge Control:Charging Faults(38):Over Charge Recovery(15)
DF:Charge Control:Charging Faults(38):Charge Fault Cfg(21)[OC]
SBS:FullChargeCapacity(0x10)
SBS:ChargingStatus(0x55)[OC]
C.4.6.10 Over Charge Recovery (Offset 15)
The bq20z60-R1/bq20z65-R1 recovers from an overcharge in non-removable battery mode ([NR] = 1) if it
is continuously discharged by an amount of Over Charge Recovery charge.
Table C-128. Over Charge Recovery
Subclass
ID
Size in
Bytes
Subclass Name
Offset
Name
Format
Min Value Max Value Default Value Unit
100 mAh
38
Charging Faults
15
Over Charge Integer
Recovery
2
0
2
Related Variables:
•
•
•
DF:Charge Control:Charging Faults(38):Over Charge Capacity(13)
DF:Configuration:Registers(64):Operation B Cfg(2)[NR]
SBS:RemainingCapacity(0x00f)
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•
•
SBS:FullChargeCapacity(0x10)
SBS:ChargingStatus(0x55)[OC]
C.4.6.11 Charge Timeout (Offset 17)
If charge Current is equal to or greater than Chg Current Threshold for an Charge Timeout time period
the bq20z60-R1/bq20z65-R1 generates a charge mode timeout fault and sets the [CMTO] flag. The CHG
FET and ZVCHG FET (if used) are also turned off if [CMTO] is set in Charge Fault Cfg. Set to 0 to
disable Charge Timeout.
Table C-129. Charge Timeout
Subclass
ID
Size in
Bytes
Subclass Name
Offset
Name
Format
Min Value Max Value Default Value Unit
65,535 10,800
38
Charging Faults
17
Charge Unsigned integer
Timeout
2
0
s
Related Variables:
•
•
•
•
DF:Gas Gauging:Current Thresholds(81):Chg Current Threshold(2)
DF:Charge Control:Charging Faults(38):Charge Fault Cfg(21)[CMTO]
SBS:Current(0x00a)
SBS:ChargingStatus(0x55)[CMTO]
C.4.6.12 Precharge Timeout (Offset 19)
If charge Current is equal to or greater than Chg Current Threshold for a Precharge Timeout time
period, the bq20z60-R1/bq20z65-R1 generates a precharge mode timeout error and sets the [PCMTO]
flag. The CHG FET and ZVCHG FET (if used) are also turned off if [PCMTO] is set in Charge Fault Cfg.
Set to 0 to disable Precharge Timeout.
Table C-130. Precharge Timeout
Subclass
ID
Subclass Name
Offset
Name
Format
Size in Bytes Min Value Max Value Default Value Unit
65,535 3600
38
Charging Faults
19
Precharg Unsigned integer
e Timeout
2
0
s
Related Variables:
•
•
•
•
DF:Gas Gauging:Current Thresholds(81):Chg Current Threshold(2)
DF:Charge Control:Charging Faults(38):Charge Fault Cfg(21)[PCMTO]
SBS:Current(0x00a)
SBS:ChargingStatus(0x55)[PCMTO]
C.4.6.13 Charge Fault Cfg (Offset 21)
This register sets the behavior of the charge, discharge, and zero-volt-charge FETs in fault conditions.
Table C-131. Charge Fault Cfg
Subclass
ID
Size in
Bytes
Min
Value
Subclass Name
Offset Name
21 Charge Fault Cfg
Format
Max Value Default Value Unit
38
Charging Faults
Hex
1
0x00
0xffff
0x00
Bit 7
RSVD
Bit 6
Bit 5
Bit 4
CMTO
Bit 3
OCHGV
Bit 2
Bit 1
OC
Bit 0
Low Byte
RSVD
PCMTO
OCHGI
CS_XCHGL
V
LEGEND: RSVD = Reserved and must be programmed to 0
Figure C-5. Charge Fault Cfg Register
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PCMTO— If this bit is set, the CHG FET and ZVCHG FET (if used) are turned off when a precharge
timeout fault occurs.
CMTO— If this bit is set, the CHG FET and ZVCHG FET (if used) are turned off when a charge timeout
fault occurs.
OCHGV— If this bit is set, the CHG FET and ZVCHG FET (if used) are turned off when a charge voltage
fault occurs.
OCHGI— If this bit is set, the CHG FET is turned off and the ZVCHG FET (if used) is turned on when a
charge current fault occurs. If the ZVCHG FET is not used, the CHG FET remains on, regardless of
this bit, because it acts as ZVCHG FET.
OC— If this bit is set, the CHG FET and ZVCHG FET (if used) are turned off when an overcharge fault
occurs.
CS_XCHGLV— If this bit is set, the DSG FET is turned off when a battery-depleted fault occurs.
Related Variables:
•
•
•
•
•
•
DF:Charge Control:Charging Faults(38):Over Charging Volt Time(2)
DF:Charge Control:Charging Faults(38):Over Charging Curr Time(5)
DF:Charge Control:Charging Faults(38):Depleted Voltage Time(10)
DF:Charge Control:Charging Faults(38):Over Charge Capacity(13)
DF:Charge Control:Charging Faults(38):Charge Timeout(17)
DF:Charge Control:Charging Faults(38):Precharge Timeout(19)
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C.5 SBS Configuration
C.5.1 Data (Subclass 48)
C.5.1.1 Rem Cap Alarm (Offset 0)
When [CapM] in BatteryStatus is set to 0, the default value of RemainingCapacityAlarm is stored in Rem
Cap Alarm and copied to the SBS value on bq20z60-R1/bq20z65-R1 initialization.
Table C-132. Rem Cap Alarm
Subclass
ID
Subclass Name Offset Name
Format
Size in Bytes Min Value Max Value Default Value Unit
700 300 mAh
48
Data Rem Cap Alarm Integer
0
2
0
Related Variable:
SBS:RemainingCapacityAlarm(0x001)
•
C.5.1.2 Rem Energy Alarm (Offset 2)
When [CapM] in BatteryStatus is set to 1, the default value of RemainingCapacityAlarm is stored in Rem
Energy Alarm and copied to the SBS value on bq20z60-R1/bq20z65-R1 initialization.
Table C-133. Rem Energy Alarm
Subclass
ID
Subclass Name Offset Name
Format
Size in Bytes Min Value Max Value Default Value Unit
1000 432 mWh
48
Data
2
Rem Energy
Alarm
Integer
2
0
Related Variable:
SBS:RemainingCapacityAlarm(0x001)
•
C.5.1.3 Rem Time Alarm (Offset 4)
The default value of RemainingTimeAlarm is stored in Rem Time Alarm and copied to the SBS value on
bq20z60-R1/bq20z65-R1 initialization.
Table C-134. Rem Time Alarm
Subclass
ID
Subclass Name Offset Name
Format
Size in Bytes Min Value Max Value Default Value Unit
48
Data
4
Rem Time
Alarm
Unsigned
integer
2
0
30
10
min
Related Variable:
SBS:RemainingTimeAlarm(0x002)
•
C.5.1.4 Init Battery Mode (Offset 6)
The default value of BatteryMode is stored in Init Battery Mode and copied to the SBS value on
bq20z60-R1/bq20z65-R1 initialization.
Table C-135. Init Battery Mode
Subclass
ID
Default
Value
Subclass Name Offset
Data
Name
Format
Size in Bytes Min Value Max Value
0x0000 0xffff
Unit
48
6
Init Battery Mode Hex
2
0x0081
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Related Variable:
SBS:BatteryMode(0x003)
•
C.5.1.5 Design Voltage (Offset 8)
The default value of DesignVoltage is stored in Design Voltage and copied to the SBS value on
bq20z60-R1/bq20z65-R1 initialization.
Table C-136. Design Voltage
Subclass
ID
Size in
Bytes
Subclass Name Offset Name
Format
Min Value Max Value Default Value Unit
48
Data
8
Design
Voltage
Integer
2
7000
18,000
14,400
mV
Related Variable:
SBS:DesignVoltage(0x19)
•
C.5.1.6 Spec Info (Offset 10)
The default value of SpecificationInfo is stored in Spec Info and copied to the SBS value on
bq20z60-R1/bq20z65-R1 initialization.
Table C-137. Spec Info
Subclass
ID
Size in
Bytes
Subclass Name
Offset
Name
Format
Min Value Max Value Default Value Unit
48
Data
10
Spec Info
Hex
2
0x0000
0xffff
0x0031
Related Variable:
SBS:SpecificationInfo(0x1a)
•
C.5.1.7 Manuf Date (Offset 12)
The default value of ManufacturerDate is stored in Manuf Date and copied to the SBS value on
bq20z60-R1/bq20z65-R1 initialization.
Table C-138. Manuf Date
Subclass
ID
Subclass
Name
Offset
Name
Format
Size in Bytes
Min Value Max Value Default Value Unit
48
Data
12
Manuf
Date
Unsigned
integer
2
0
65,535
0
Day + Mo ×
32 + (Yr –
1980) × 256
Related Variable:
SBS:ManufactureDate(0x1b)
•
C.5.1.8 Ser. Num. (Offset 14)
The default value of SerialNumber is stored in Ser. Num. and copied to the SBS value on
bq20z60-R1/bq20z65-R1 initialization.
Table C-139. Ser. Num.
Subclass
ID
Size in
Bytes
Subclass Name
Offset
Name
Format
Min Value Max Value Default Value Unit
0x0000 0xffff 0x0001
48
Data
14
Ser. Num.
Hex
2
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Related Variable:
SBS:SerialNumber(0x1c)
•
C.5.1.9 Cycle Count (Offset 16)
The default value of CycleCount is stored in Cycle Count and copied to the SBS value on
bq20z60-R1/bq20z65-R1 initialization. When the SBS value changes, Cycle Count is also updated.
Table C-140. Cycle Count
Subclass
ID
Size in
Bytes
Subclass Name
Offset
Name
Format
Min Value Max Value Default Value Unit
65,535
48
Data
16
Cycle Count Unsigned
integer
2
0
0
Related Variables:
•
•
•
•
DF:Configuration:Registers(64):Operation Cfg B(2)[CCT]
DF:SBS Configuration:Data(48):CC Threshold(18)
DF:SBS Configuration:Data(48):CC %(20)
SBS:CycleCount(0x17)
C.5.1.10 CC Threshold (Offset 18)
If the [CCT] bit is cleared, the cycle count function counts the accumulated discharge of the
CC Threshold value as one cycle.
Table C-141. CC Threshold
Subclass
ID
Size in
Bytes
Subclass Name
Offset
Name
Format
Min Value Max Value Default Value Unit
100 32,767 4400 mAh
48
Data
18
CC
Integer
2
Threshold
Related Variables:
•
•
DF:Configuration:Registers(64):Operation Cfg B(2)[CCT]
SBS:CycleCount(0x17)
C.5.1.11 CC % (Offset 20)
If the [CCT] bit is set, the cycle count function counts the accumulated discharge of (FullChargeCapacity
× CC %) as one cycle. If (FullChargeCapacity × CC %) is smaller than CC Threshold, CC Threshold is
used for counting.
Table C-142. CC %
Subclass
ID
Size in
Bytes
Subclass Name
Offset
Name Format
Min Value Max Value Default Value Unit
100 90
48
Data
20
CC % Unsigned intege
1
0
%
Related Variables:
•
•
•
•
DF:Configuration:Registers(64):Operation Cfg B(2)[CCT]
DF:SBS Configuration:Data(48):CC Threshold(18)
SBS:FullChargeCapacity(0x10)
SBS:CycleCount(0x17)
C.5.1.12 CF Max Error Limit (Offset 21)
If the MaxError function value is greater than CF Max Error Limit, the [CF] flag in BatteryMode is set.
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Table C-143. CF Max Error Limit
Subclass
ID
Min
Value
Subclass Name Offset Name
Format
Size in Bytes
Max Value Default Value Unit
48
Data
21
CF Max Error Limit Unsigned
integer
1
0
100
100
%
Related Variables:
•
•
SBS:BatteryMode(0x003)[CF]
SBS:MaxError(0x00c)
C.5.1.13 Design Capacity (Offset 22)
If [CapM] in BatteryMode is set to 0, the DesignCapacity function reports Design Capacity.
Table C-144. Design Capacity
Subclass
ID
Subclass
Name
Default
Value
Offset Name
Format
Size in Bytes Min Value Max Value
32,767
Unit
48
Data
22
Design
Integer
2
0
4400
mAh
Capacity
Related Variables:
•
•
•
•
DF:Gas Gauging:IT Config(80):Load Select(0)
SBS:BatteryMode(0x003)[CapM]
SBS:DesignCapacity(0x18)
SBS:StateOfHealth(0x4f)
C.5.1.14 Design Energy (Offset 24)
If [CapM] in BatteryMode is set to 1, the DesignCapacity function reports Design Energy.
Table C-145. Design Energy
Subclass
ID
Size in
Bytes
Min
Value
Subclass Name
Offset Name
Format
Max Value Default Value Unit
48
Data
24 Design Energy Integer
2
0
32,767
6336
10mWh
Related Variables:
•
•
•
•
DF:Gas Gauging:IT Config(80):Load Select(0)
SBS:BatteryMode(0x003)[CapM]
SBS:DesignCapacity(0x18)
SBS:StateOfHealth(0x4f)
C.5.1.15 Manuf Name (Offset 26)
The ManufacturerName function returns a string stored in Manuf Name. The maximum text length is 20
characters.
Table C-146. Manuf Name
Subclass Subclass
Max
Value
Default
Value
Offset Name
Format Size in Bytes Min Value
String 20 + 1
Unit
ID
Name
48
Data
26
Manuf
Name
–
–
Texas
Instruments
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Related Variable:
SBS:ManufacturerName(0x20)
•
C.5.1.16 Device Name (Offset 47)
The DeviceName function returns a string stored in Device Name. The maximum text length is 20
characters.
Table C-147. Device Name
Subclass
ID
Size in
Bytes
Subclass Name
Offset
Name
Format
Min Value Max Value Default Value Unit
bq20z60
48
Data
47
Device
Name
String
20 + 1
–
–
Related Variable:
SBS:DeviceName(0x21)
•
C.5.1.17 Device Chemistry (Offset 68)
The DeviceChemistry function returns a string stored in Device Chemistry. The maximum text length is 4
characters.
Table C-148. Device Chemistry
Subclass
ID
Size in
Bytes
Min
Value
Subclass Name
Offset Name
68 Device Chemistry
Format
Max Value Default Value Unit
– LION
48
Data
String
4 + 1
–
Related Variable:
SBS:DeviceChemistry(0x22)
•
C.5.1.18 Deterioration Warn Limit (Offset 73)
If the battery capacity as indicated by the StateofHealth percentage falls below Deterioration Warn Limit,
the bq20z60-R1/bq20z65-R1 sets the [DetW] flag in StateOfHealth.
Table C-149. Deterioration Warn Limit
Subclass
ID
Size in
Bytes
Min
Value
Subclass Name
Offset Name
Format
Max Value Default Value Unit
100 50
48
Data
73
Deterioration Warn Unsigned
Limit integer
1
0
%
Related Variable:
SBS:StateOfHealth(0x4f)
•
C.5.1.19 Deterioration Fault Limit (Offset 74)
If the battery capacity as indicated by the StateofHealth percentage falls below Deterioration Fault Limit,
the bq20z60-R1/bq20z65-R1 sets the [DetF] flag in StateOfHealth.
Table C-150. Deterioration Fault Limit
Subclass
ID
Size in
Bytes
Min
Value
Subclass Name
Offset Name
Format
Max Value Default Value Unit
100 30
48
Data
74
Deterioration Fault Unsigned
Limit integer
1
0
%
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Related Variable:
SBS:StateOfHealth(0x4f)
•
C.5.1.20 Cell Life Limit (Offset 75)
If the battery capacity as indicated by the StateofHealth percentage falls below Cell Life Limit, the
bq20z60-R1/bq20z65-R1 sets the [CLL] flag in StateOfHealth.
Table C-151. Cell Life Limit
Subclass
ID
Size in
Bytes
Min
Value
Subclass Name
Offset Name
75 Cell Life Limit
Format
Max Value Default Value Unit
100 20
48
Data
Unsigned
integer
1
0
%
Related Variable:
SBS:StateOfHealth(0x4f)
•
C.5.2 Configuration (Subclass 49)
C.5.2.1 TDA Set % (Offset 0)
If set between 0% and 100%, the bq20z60-R1/bq20z65-R1 sets the [TDA] flag in BatteryStatus if the
RelativeStateOfCharge reaches or falls below TDA Set %. Set to –1 to disable this function.
Table C-152. TDA Set %
Subclass
ID
Size in
Bytes
Subclass Name
Offset
Name
Format
Min Value Max Value Default Value Unit
–1 100
49
Configuration
0
TDA Set %
Integer
1
6
%
Related Variables:
•
•
SBS:RelativeStateOfCharge(0x00d)
SBS:BatteryStatus(0x16)[TDA]
C.5.2.2 TDA Clear % (Offset 1)
If set between 0% and 100%, the bq20z60-R1/bq20z65-R1 clears the [TDA] flag in BatteryStatus if the
RelativeStateOfCharge reaches or rises above TDA Clear %. Set to –1 to disable this function.
Table C-153. TDA Clear %
Subclass
ID
Size in
Bytes
Subclass Name
Offset
Name
Format
Min Value Max Value Default Value Unit
–1 100
49
Configuration
1
TDA Clear % Integer
1
8
%
Related Variables:
•
•
SBS:RelativeStateOfCharge(0x00d)
SBS:BatteryStatus(0x16)[TDA]
C.5.2.3 FD Set % (Offset 2)
If set between 0% and 100%, the bq20z60-R1/bq20z65-R1 sets the [FD] flag in BatteryStatus if the
RelativeStateOfCharge reaches or falls below FD Set %. Set to –1 to disable this function.
Table C-154. FD Set %
Subclass
ID
Size in
Bytes
Subclass Name
Offset
Name
Format
Min Value Max Value Default Value Unit
49
Configuration
2
FD Set %
Integer
1
–1
100
2
%
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Related Variables:
•
•
SBS:RelativeStateOfCharge(0x00d)
SBS:BatteryStatus(0x16)[FD]
C.5.2.4 FD Clear % (Offset 3)
If set between 0% and 100%, the bq20z60-R1/bq20z65-R1 clears the [FD] flag in BatteryStatus if the
RelativeStateOfCharge reaches or rises above FD Clear %. Set to –1 to disable this function.
Table C-155. FD Clear %
Subclass
ID
Size in
Bytes
Subclass Name
Offset
Name
Format
Min Value Max Value Default Value Unit
–1 100
49
Configuration
3
FC Clear %
Integer
1
5
%
Related Variables:
•
•
SBS:RelativeStateOfCharge(0x00d)
SBS:BatteryStatus(0x16)[FD]
C.5.2.5 TDA Set Volt Threshold (Offset 4)
The bq20z60-R1/bq20z65-R1 sets the [TDA] flag in BatteryStatus if Voltage is equal to or lower than TDA
Set Volt Threshold for a period equal to or greater than TDA Set Volt Time.
Table C-156. TDA Set Volt Threshold
Subclass
ID
Size in
Bytes
Subclass Name Offset
Configuration
Name
Format
Min Value Max Value Default Value Unit
0 16,800 5000 mV
49
4
TDA Set Volt
Threshold
Integer
2
Related Variables:
•
•
•
DF:SBS Configuration:Configuration(49):TDA Set Volt Time(6)
SBS:Voltage(0x009)
SBS:BatteryStatus(0x16)[TDA]
C.5.2.6 TDA Set Volt Time (Offset 6)
The bq20z60-R1/bq20z65-R1 sets the [TDA] flag in BatteryStatus if Voltage is equal to or lower than
TDA Set Volt Threshold for a period equal to or greater than TDA Set Volt Time. Set to 0 to disable this
feature.
Table C-157. TDA Set Volt Time
Subclass
ID
Subclass
Name
Size in
Bytes
Offset Name
Format
Min Value Max Value Default Value Unit
240
49
Configuration
6
TDA Set Volt
Time
Unsigned
integer
1
0
5
s
Related Variables:
•
•
•
DF:SBS Configuration:Configuration(49):TDA Set Volt Threshold(4)
SBS:Voltage(0x009)
SBS:BatteryStatus(0x16)[TDA]
C.5.2.7 TDA Clear Volt (Offset 7)
The bq20z60-R1/bq20z65-R1 clears the [TDA] flag if Voltage is equal to or greater than TDA Clear Volt.
TDA Clear Volt clears [TDA] only if [TDA] is set by TDA Set Volt Threshold. It does not clear [TDA] if
[TDA] is set by TDA Set % or any other function.
158
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Table C-158. TDA Clear Volt
Subclass Subclass
Size in
Format
Min
Value
Max
Value
Default
Value
Offset Name
Unit
ID
Name
Bytes
49
Configuration
7
TDA Clear
Volt
Integer
2
0
16,800
5500
mV
Related Variables:
•
•
•
•
DF:SBS Configuration:Configuration(49):TDA Set Volt Threshold(4)
DF:SBS Configuration:Configuration(49):TDA Set Volt Time(6)
SBS:Voltage(0x009)
SBS:BatteryStatus(0x16)[TDA]
C.5.2.8 FD Set Volt Threshold (Offset 9)
The bq20z60-R1/bq20z65-R1 sets the [FD] flag if Voltage is equal to or lower than FD Set Volt
Threshold for a period equal to or greater than FD Volt Time.
Table C-159. FD Set Volt Threshold
Subclass
ID
Subclass
Name
Size in
Bytes
Min
Value
Max
Value
Default
Value
Offset
Name
Format
Unit
49
Configuration
9
FD Set Volt
Threshold
Integer
2
0
16,800
5000
mV
Related Variables:
•
•
•
DF:SBS Configuration:Configuration(49):FD Volt Time(11)
SBS:Voltage(0x009)
SBS:BatteryStatus(0x16)[FD]
C.5.2.9 FD Volt Time (Offset 11)
The bq20z60-R1/bq20z65-R1 sets the [FD] flag if Voltage is equal to or lower than FD Set Volt
Threshold for a period equal to or greater than FD Volt Time. Set to 0 to disable this feature.
Table C-160. FD Volt Time
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value
Default
Value
Offset Name
Format
Unit
ID
Name
49
Configuration 11
FD Volt Time Unsigned
integer
1
0
240
5
s
Related Variables:
•
•
•
DF:SBS Configuration:Configuration(49):FD Set Volt Threshold(9)
SBS:Voltage(0x009)
SBS:BatteryStatus(0x16)[FD]
C.5.2.10 FD Clear Volt (Offset 12)
The bq20z60-R1/bq20z65-R1 clears the [FD] flag if Voltage is equal to or greater than FD Clear Volt.
Table C-161. FD Clear Volt
Subclass
ID
Size in
Bytes
Min
Value
Subclass Name
Offset Name
Format
Max Value Default Value Unit
49
Configuration
12
FD Clear
Volt
Integer
2
0
16,800
5500
mV
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Related Variables:
•
•
•
DF:SBS Configuration:Configuration(49):FD Set Volt Threshold(9)
SBS:Voltage(0x009)
SBS:BatteryStatus(0x16)[FD]
C.6 System Data
C.6.1 Manufacturer Data (Subclass 56)
C.6.1.1 Pack Lot Code (Offset 0)
The ManufacturerData function reports Pack Lot Code as part of its return value.
Table C-162. Pack Lot Code
Subclass
ID
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass Name Offset
Name
Format
Unit
56
Manufacturer
Data
0
Pack Lot
Code
Hex
2
0x0000
0xffff
0x0000
Related Variable:
SBS:ManufacturerData(0x23)
•
C.6.1.2 PCB Lot Code (Offset 2)
The ManufacturerData function reports PCB Lot Code as part of its return value.
Table C-163. PCB Lot Code
Subclass
ID
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass Name Offset
Name
Format
Unit
56
Manufacturer
Data
2
PCB Lot
Code
Hex
2
0x0000
0xffff
0x0000
Related Variable:
SBS:ManufacturerData(0x23)
•
C.6.1.3 Firmware Version (Offset 4)
The ManufacturerData function reports Firmware Version as part of its return value.
Table C-164. Firmware Version
Subclass
ID
Size in
Bytes
Min
Value
Subclass Name
Offset Name
Firmware Version
Format
Max Value Default Value Unit
56
Manufacturer Data
4
Hex
2
0x0000
0xffff
0x0000
Related Variable:
SBS:ManufacturerData(0x23)
•
C.6.1.4 Hardware Revision (Offset 6)
The ManufacturerData function reports Hardware Version as part of its return value.
Table C-165. Hardware Revision
Subclass
ID
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass Name Offset Name
Format
Unit
56
Manufacturer
Data
6
Hardware
Revision
Hex
2
0x0000
0xffff
0x0000
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Related Variable:
SBS:ManufacturerData(0x23)
•
C.6.1.5 Cell Revision (Offset 8)
The ManufacturerData function reports Cell Revision as part of its return value.
Table C-166. Cell Revision
Subclass
ID
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass Name Offset
Name
Format
Unit
56
Manufacturer
Data
8
Cell
Revision
Hex
2
0x0000
0xffff
0x0000
Related Variable:
SBS:ManufacturerData(0x23)
•
C.6.2 Manufacturer Info (Subclass 58)
C.6.2.1 Manuf. Info 0 (Offset 0)
The ManufacturerInfo function returns the string stored in Manuf. Info. The maximum text length is 31
characters.
Table C-167. Manuf. Info 0
Subclass
ID
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass Name
Offset
Name
Format
Unit
58
Manufacturer Info
0
Manuf. Info String
0
31+1
–
–
012345678
9ABCDEF0
123456789
ABCDE
Related Variable:
SBS:ManufacturerInfo(0x70)
•
C.6.2.2 Manuf. Block 1 (Offset 32)
The 20-byte DF location is provided for manufacturer data that is accessible (read/write) in sealed and
unsealed modes.
Table C-168. Manuf. Block 1
Subclass
ID
Size in
Bytes
Subclass Name Offset Name
Manufacturer Info 32 Manuf. Block 1
Format
Min Value Max Value Default Value Unit
58
String
20+1
–
–
0123456789A
BCDEF012
Related Variable:
SBS:ManufBlock1(0x6c)
•
C.6.3 Manuf. Block 2 (Offset 53)
The 20-byte DF location is provided for manufacturer data that is accessible (read/write) in sealed and
unsealed modes.
Table C-169. Manuf. Block 2
Subclass
ID
Size in
Bytes
Subclass Name Offset Name
Manufacturer Info 53 Manuf. Block 2
Format
Min Value Max Value Default Value Unit
58
String
20+1
–
–
0123456789A
BCDEF012
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Related Variable:
SBS:ManufBlock2(0x6d)
•
C.6.4 Manuf. Block 3 (Offset 74)
The 20-byte DF location is provided for manufacturer data that is accessible (read/write) in sealed and
unsealed modes.
Table C-170. Manuf. Block 3
Subclass
ID
Size in
Bytes
Subclass Name Offset Name
Manufacturer Info 74 Manuf. Block 3
Format
Min Value Max Value Default Value Unit
58
String
20+1
–
–
0123456789A
BCDEF012
Related Variable:
SBS:ManufBlock3(0x6e)
•
C.6.5 Manuf. Block 4 (Offset 95)
The 20-byte DF location is provided for manufacturer data that is accessible (read/write) in sealed and
unsealed modes.
Table C-171. Manuf. Block 4
Subclass
ID
Size in
Bytes
Subclass Name Offset Name
Manufacturer Info 95 Manuf. Block 4
Format
Min Value Max Value Default Value Unit
58
String
20+1
–
–
0123456789A
BCDEF012
Related Variable:
SBS:ManufBlock4(0x6f)
•
C.6.6 Lifetime Data (Subclass 59)
C.6.6.1 Lifetime Max Temp (Offset 0)
If the [QEN] flag in OperationStatus is set, the Lifetime Max Temp value is updated with the temperature
source value selected by the [Temp1] and [Temp0] bits in Operation Cfg A if one of the following
conditions is met.
•
•
Temperature source value > 70°C for a period > 60 seconds.
Temperature source value > 70°C AND any other lifetime value is updated.
The event logging ends when the temperature source value < 69°C after the Lifetime Max Temp begins
logging.
Table C-172. Lifetime Max Temp
Subclass
ID
Size in
Bytes
Subclass Name Offset Name
Format
Min Value Max Value Default Value Unit
0 1400 300 0.1°C
59
Lifetime Data Lifetime Max Temp Integer
0
2
Related Variables:
•
•
•
•
DF:Gas Gauging:State(82):Update Status(12)
DF:Configuration:Operation Cfg A:Temp1(4) and Temp0(3)
SBS:ManufacturerAccess(0x00):IT Enable(0x0021)
SBS:OperationStatus(0x54)[QEN]
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C.6.6.2 Lifetime Min Temp (Offset 2)
If the [QEN] flag is set in OperationStatus, Lifetime Min Temp is updated with the temperature source
value selected by the [Temp1] and [Temp0] bits in Operation Cfg A if one of the following conditions is
met.
•
•
•
Lifetime Min Temp – temperature source value > 1°C.
Lifetime Min Temp > temperature source value for a period > 60 seconds
Lifetime Min Temp > temperature source value AND any other lifetime value is updated.
Table C-173. Lifetime Min Temp
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value
Default
Value
Offset Name
Format
Unit
ID
Name
59
Lifetime Data
2
Lifetime Min
Temp
Integer
2
–600
1400
200
0.1°C
Related Variables:
•
•
•
•
DF:Gas Gauging:State(82):Update Status(12)
DF:Configuration:Operation Cfg A:Temp1(4) and Temp0(3)
SBS:ManufacturerAccess(0x00):IT Enable(0x0021)
SBS:OperationStatus(0x54)[QEN]
C.6.6.3 Lifetime Max Cell Voltage (Offset 4)
If the [QEN] flag is set in OperationStatus, Lifetime Max Cell Voltage is updated if one of the following
conditions is met:
•
•
Any internally measured cell voltage > 4300mV for a period > 60 seconds.
Any internally measured cell voltage > 4300mV AND any other lifetime value is updated.
The event logging ends when the cell voltage < 4290mV after the Lifetime Max Cell Voltage logging
begins.
Table C-174. Lifetime Max Cell Voltage
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value
Default
Value
Offset Name
Format
Unit
ID
Name
59
Lifetime Data
4
Lifetime Max
Cell Voltage
Integer
2
0
32,767
3500
mV
Related Variables:
•
•
•
DF:Gas Gauging:State(82):Update Status(12)
SBS:ManufacturerAccess(0x00):IT Enable(0x0021)
SBS:OperationStatus(0x54)[QEN]
C.6.6.4 Lifetime Min Cell Voltage (Offset 6)
If the [QEN] flag is set in OperationStatus, Lifetime Min Cell Voltage is updated if one of the following
conditions is met:
•
•
•
Lifetime Min Cell Voltage – any internal measured cell voltage > 25 mV
Lifetime Min Cell Voltage > any internal measured cell voltage for a period > 60 seconds
Lifetime Min Cell Voltage > any internal measured cell voltage AND any other lifetime value is
updated.
Table C-175. Lifetime Min Cell Voltage
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value
Default
Value
Offset Name
Format
Unit
ID
Name
59
Lifetime Data
6
Lifetime Min
Cell Voltage
Integer
2
0
32,767
3200
mV
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Related Variables:
•
•
•
DF:Gas Gauging:State(82):Update Status(12)
SBS:ManufacturerAccess(0x00):IT Enable(0x0021)
SBS:OperationStatus(0x54)[QEN]
C.6.6.5 Lifetime Max Pack Voltage (Offset 8)
If the [QEN] flag is set in OperationStatus, Lifetime Max Pack Voltage is updated if one of the following
conditions is met:
•
•
•
Internal measured cell stack voltage – Lifetime Max Pack Voltage > 100 mV
Internal measured cell stack voltage > Lifetime Max Pack Voltage for a period > 60 seconds
Internal measured cell stack voltage > Lifetime Max Pack Voltage AND any other lifetime value is
updated.
Table C-176. Lifetime Max Pack Voltage
Subclass
ID
Min
Value
Default
Value
Subclass Name Offset Name
Format
Size in Bytes
Max Value
Unit
59
Lifetime Data
8
Lifetime Max Pack
Voltage
Integer
2
0
32,767
14,000
mV
Related Variables:
•
•
•
DF:Gas Gauging:State(82):Update Status(12)
SBS:ManufacturerAccess(0x00):IT Enable(0x0021)
SBS:OperationStatus(0x54)[QEN]
C.6.6.6 Lifetime Min Pack Voltage (Offset 10)
If the [QEN] flag is set in OperationStatus, Lifetime Min Pack Voltage is updated if one of the following
conditions is met:
•
•
•
Lifetime Min Pack Voltage – internal measured cell stack voltage > 100 mV
Lifetime Min Pack Voltage > internal measured cell stack voltage for a period > 60 seconds
Lifetime Min Pack Voltage > internal measured cell stack voltage AND any other lifetime value is
updated.
Table C-177. Lifetime Min Pack Voltage
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value
Default
Value
Offset Name
Format
Unit
ID
Name
59
Lifetime Data
10
Lifetime Min
Pack Voltage
Integer
2
0
32,767
12,800
mV
Related Variables:
•
•
•
DF:Gas Gauging:State(82):Update Status(12)
SBS:ManufacturerAccess(0x00):IT Enable(0x0021)
SBS:OperationStatus(0x54)[QEN]
C.6.6.7 Lifetime Max Chg Current (Offset 12)
If the [QEN] flag is set in OperationStatus, Lifetime Max Chg Current is updated if one of the following
conditions is met:
•
•
•
Internal charge current – Lifetime Max Chg Current > 100 mA
Internal charge current > Lifetime Max Chg Current for a period > 60 seconds
Internal charge current > Lifetime Max Chg Current AND any other lifetime value is updated.
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Table C-178. Lifetime Max Chg Current
Subclass
ID
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass Name Offset
Lifetime Data 12
Name
Format
Unit
59
Lifetime
Max Chg
Current
Integer
2
–32,767
32,767
1500
mA
Related Variables:
•
•
•
DF:Gas Gauging:State(82):Update Status(12)
SBS:ManufacturerAccess(0x00):IT Enable(0x0021)
SBS:OperationStatus(0x54)[QEN]
C.6.6.8 Lifetime Max Dsg Current (Offset 14)
If the [QEN] flag is set in OperationStatus, Lifetime Max Dsg Current is updated if one of the following
conditions is met:
•
•
•
Lifetime Max Dsg Current – internal discharge current < –100 mA
Lifetime Max Dsg Current < internal discharge current for a period > 60 seconds
Lifetime Max Dsg Current < internal discharge current AND any other lifetime value is updated.
Table C-179. Lifetime Max Dsg Current
Subclass
ID
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass Name Offset
Lifetime Data 14
Name
Format
Unit
59
Lifetime
Max Dsg
Current
Integer
2
–32,767
32,767
–3000
mA
Related Variables:
•
•
•
DF:Gas Gauging:State(82):Update Status(12)
SBS:ManufacturerAccess(0x00):IT Enable(0x0021)
SBS:OperationStatus(0x54)[QEN]
C.6.6.9 Lifetime Max Chg Power (Offset 16)
If the [QEN] flag is set in OperationStatus, Lifetime Max Chg Power is updated if one of the following
conditions is met:
•
•
(Internal measured voltage × internal measured current) – Lifetime Max Chg Power > 1000 mW
(Internal measured voltage × internal measured current) > Lifetime Max Chg Power for a period > 60
seconds
•
(Internal measured voltage × internal measured current) > Lifetime Max Chg Power AND any other
lifetime value is updated.
Table C-180. Lifetime Max Chg Power
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value
Default
Value
Offset Name
Format
Unit
ID
Name
59
Lifetime Data
16
Lifetime Max
Chg Power
Integer
2
–32,767
32,767
1500
10 mW
Related Variables:
•
•
•
DF:Gas Gauging:State(82):Update Status(12)
SBS:ManufacturerAccess(0x00):IT Enable(0x0021)
SBS:OperationStatus(0x54)[QEN]
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C.6.6.10 Lifetime Max Dsg Power (Offset 18)
If the [QEN] flag is set in OperationStatus, Lifetime Max Dsg Power is updated if one of the following
conditions is met:
•
•
Lifetime Max Dsg Power – (internal measured voltage × internal measured current) > 1000 mW
Lifetime Max Dsg Power > (internal measured voltage × internal measured current) for a period > 60
seconds
•
Lifetime Max Dsg Power > (internal measured voltage × internal measured current) AND any other
lifetime value is updated.
Table C-181. Lifetime Max Dsg Power
Subclass
ID
Size in
Bytes
Subclass Name
Offset Name
Format
Min Value Max Value Default Value Unit
–32,767 32,767 –1500 10 mW
59
Lifetime Data
18
Lifetime Max
Dsg Power
Integer
2
Related Variables:
•
•
•
DF:Gas Gauging:State(82):Update Status(12)
SBS:ManufacturerAccess(0x00):IT Enable(0x0021)
SBS:OperationStatus(0x54)[QEN
C.6.6.11 Life Max AvgDsg Cur (Offset 22)
If the [QEN] flag is set in OperationStatus, Life Max AvgDsg Cur is updated if one of the following
conditions us met:
•
•
•
Lifetime Max AvgDsg Cur – internally measured average discharge current > 100 mA
Lifetime Max AvgDsg Cur > internally measured average discharge current > 60 seconds
Lifetime Max AvgDsg Cur > internally measured average discharge current AND any other lifetime
value is updated.
Table C-182. Life Max AvgDsg Cur
Subclass
ID
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass Name Offset Name
Format
Unit
59
Lifetime Data
22
Life Max
Integer
2
–32,767
32,767
–1000
mA
AvgDsg Cur
Related Variables:
•
•
•
DF:Gas Gauging:State(82):Update Status(12)
SBS:ManufacturerAccess(0x00):IT Enable(0x0021)
SBS:OperationStatus(0x54)[QEN]
C.6.6.12 Life Max AvgDsg Pow (Offset 26)
If the [QEN] flag is set in OperationStatus, Life Max AvgDsg Pow is updated if one of the following
conditions is met:
•
•
•
Life Max AvgDsg Pow – averaged (internal measured voltage × internal measured current) > 1000
mW
Life Max AvgDsg Pow > averaged (internal measured voltage × internal measured current) for a
period > 60 seconds
Life Max AvgDsg Pow > averaged (internal measured voltage × internal measured current) AND any
other lifetime value is updated.
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Table C-183. Life Max AvgDsg Pow
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value
Default
Value
Offset Name
Format
Unit
ID
Name
59
Lifetime Data
26
Life Max
AvgDsg Pow
Integer
2
–32,767
32,767
–1500
10 mW
Related Variables:
•
•
•
DF:Gas Gauging:State(82):Update Status(12)
SBS:ManufacturerAccess(0x00):IT Enable(0x0021)
SBS:OperationStatus(0x54)[QEN]
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C.6.6.13 Life Avg Temp (Offset 28)
If the [QEN] flag is set in OperationStatus, Life Avg Temp takes samples of the Temperature function
every 225 s, but only updates if any other lifetime value is updated.
Table C-184. Life Avg Temp
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value
Default
Value
Offset Name
28 Life Avg Temp
Format
Unit
ID
Name
59
Lifetime Data
Integer
2
0
1400
250
0.1°C
Related Variables:
•
•
•
•
•
DF:Gas Gauging:State(82):Update Status(12)
DF:System Data:Lifetime Temp Samples(60):LT Temp Samples(0)
SBS:ManufacturerAccess(0x00):IT Enable(0x0021)
SBS:Temperature(0x008)
SBS:OperationStatus(0x54)[QEN]
C.6.6.14 Life OT Count (Offset 30)
Whenever the Lifetime Max Temp is updated (see Lifetime Max Temp for conditions), the Life OT Count
is incremented by 1.
Table C-185. Life OT Count
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value
Default
Value
Offset Name
30 Life OT Count
Format
Unit
ID
Name
59
Lifetime Data
Unsigned
Integer
2
0
65,535
0
Related Variables:
•
•
DF:System Data:Lifetime Data(59):Lifetime Max Temp(0)
SBS:Temperature(0x008)
C.6.6.15 Life OT Duration (Offset 32)
Whenever Lifetime Max Temp is updated (see Lifetime Max Temp for conditions), the duration of the
event is timed and stored in Life OT Duration.
Table C-186. Life OT Duration
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value
Default
Value
Offset Name
Format
Unit
ID
Name
59
Lifetime Data
32
Life OT Duration Unsigned
Integer
2
0
65,535
0
s
Related Variables:
•
•
DF:System Data:Lifetime Data(59):Lifetime Max Temp(0)
SBS:Temperature(0x008)
C.6.6.16 Life OV Count (Offset 35)
Whenever the Max Cell Voltage is updated (see Lifetime Max Cell Voltage for conditions), the Life OV
Count is incremented by 1.
Table C-187. Life OV Count
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value
Default
Value
Offset Name
35 Life OV Count
Format
Unit
ID
Name
59
Lifetime Data
Unsigned
Integer
2
0
65,535
0
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Related Variables:
•
•
•
•
•
DF:System Data:Lifetime Data(59):Lifetime Max Cell Voltage(4)
SBS:CellVoltage4(0x3c)
SBS:CellVoltage3(0x3d)
SBS:CellVoltage2(0x3e)
SBS:CellVoltage1(0x3f)
C.6.6.17 Life OV Duration (Offset 37)
Whenever the Max Cell Voltage is updated (see Lifetime Max Cell Voltage for conditions), the duration
of the event is timed and stored in Life OV Duration.
Table C-188. Life OV Duration
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value
Default
Value
Offset Name
Format
Unit
ID
Name
59
Lifetime Data
37
Life OV Duration Unsigned
Integer
2
0
65,535
0
s
Related Variables:
•
•
•
•
•
DF:System Data:Lifetime Data(59):Lifetime Max Cell Voltage(4)
SBS:CellVoltage4(0x3c)
SBS:CellVoltage3(0x3d)
SBS:CellVoltage2(0x3e)
SBS:CellVoltage1(0x3f)
C.6.7 Lifetime Temp Samples (Subclass 60)
C.6.7.1 LT Temp Samples (Offset 0)
This variable indicates the number of temperature samples used for the Lifetime Avg Temp calculation.
Multiply this value by 225 seconds to get the total time that the Impedance Track algorithm is active.
Table C-189. LT Temp Samples
Subclass
ID
Size in
Bytes
Min
Value
Default
Value
Subclass Name
Offset Name
Format
Max Value
Unit
60
Lifetime Temp
Samples
0
LT Temp
Samples
Integer
4
0
140,000,00
0
0
Count
Related Variable:
DF:System Data:Lifetime Data(59):Lifetime Avg Temp(28)
•
C.7 Configuration
C.7.1 Registers (Subclass 64)
C.7.1.1 Operation Cfg A (Offset 0)
This register enables, disables or configures various features of the bq20z60-R1/bq20z65-R1.
Table C-190. Operation Cfg A
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value
Default
Value
Offset
Name
Format
Unit
ID
Name
64
Configuration
0
Operation Cfg A
Hex
2
0x0000
0xffff
0x0f29
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Bit 7
LEDR
RSVD
Bit 6
LEDRCA
RSVD
Bit 5
Bit 4
Bit 3
LED1
Bit 2
LED0
SLED
Bit 1
CC1
Bit 0
CC0
High Byte
Low Byte
CHGLED
SLEEP
DMODE
TEMP1
TEMP0
ZVCHG1
ZVCHG0
LEGEND: RSVD = Reserved and must be programmed to 0
Figure C-6. Operation Cfg A
LEDR— Enables activation of the LED display on device-reset exit.
0 = LED display is not activated on exit from device reset. (default)
1 = LED display is activated (simulates a DISP transition) on exit from device reset.
LEDRCA— Enables flashing of the LED display when the [RCA] flag in BatteryStatus is set.
0 = The LED display is not activated when [RCA] is set. (default)
1 = If the LED display is activated when [RCA] is set, the display flashes with
LED Flash Period.
Related Variables:
DF:LED Support:LED Cfg(67):LED Flash Period(0)
SBS:BatteryStatus(0x16)[RCA]
CHGLED— Enables the LED display while charging.
0 = Display is not activated by charging; requires push-button event or SMBus command.
(default)
1 = Display is active during charging.
DMODE— This bit sets the display to show the RelativeStateOfCharge or AbsoluteStateOfCharge LED
representation.
0 = Display reflects RelativeStateOfCharge (default).
1 = Display reflects AbsoluteStateOfCharge.
LED1, LED0— These bits configure the number of LEDs and threshold levels used in the LED display.
0,0 = User defined threshold
0,1 = 3 LEDs used
1,0 = 4 LEDs used
1,1 = 5 LEDs used (default)
CC1, CC0— These bits configure the bq20z60-R1/bq20z65-R1 for the number of series cells in the
battery stack.
0,0 = Reserved
0,1 = 2 cells
1,0 = 3 cells
1,1 = 4 cells (default)
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Configuration
SLEEP— Enables the bq20z60-R1/bq20z65-R1 to enter Sleep mode if the SMBus lines are low.
0 = The bq20z60-R1/bq20z65-R1 never enters Sleep mode.
1 = The bq20z60-R1/bq20z65-R1 enters Sleep mode under normal Sleep entry criteria
(default).
Related Variable:
SBS:ManufacterAccess(0x00):Sleep(0x0011)
TEMP1, TEMP0— These bits configure the source of the Temperature function.
0,0 = Internal Temperature Sensor
0,1 = TS1 Input (default)
1,0 = TS2 Input
1,1 = Average of TS1 and TS2 Inputs
Related Variable:
SBS:Temperature(0x008)
SLED— Enables the bq20z60-R1/bq20z65-R1 display to be used in serial or parallel mode. The PF error
code display doesn't work in serial LED mode
0 = Display is in parallel LED mode (default)
1 = Display is in serial LED mode
ZVCHG1, ZVCHG0— These bits enable or disable the use of the ZVCHG or CHG FET in
Zero-Volt/Precharge modes.
0,0 = ZVCHG
0,1 = CHG (default)
1,0 = GPOD
1,1 = No Action
C.7.1.2 Operation Cfg B (Offset 2)
This register enables, disables, or configures various features of the bq20z60-R1/bq20z65-R1.
Table C-191. Operation Cfg B
Subclass
ID
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass Name Offset Name
Format
Unit
64
Configuration Operation Cfg B Hex
2
2
0x0000
0xffff
0x6440
Bit 7
PDF1
CHGSUSP
Bit 6
PDF0
Bit 5
Bit 4
Bit 3
Bit 2
CSYNC
CPE
Bit 1
CHGTERM
HPE
Bit 0
CCT
High Byte
Low Byte
RESCAP
CHGFET
NCSMB
CHGIN
NRCHG
NR
OTFET
BCAST
Figure C-7. Operation Cfg B
PDF1, PDF0— Configures the Permanent Failure LED display. This function is disabled if the [SLED] bit
in Operation Cfg A is set.
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0,0 = PF Error Code not available
0,1 = PF Error Code is activated after state of charge display if DISP is held low for
LED Hold Time. (default)
1,0 = PF Error Code not available
1,1 = PF Error Code is automatically activated after state-of charge-display
Related Variables:
DF:Configuration:Registers(64):Operation Cfg A(0)[SLED]
DF:LED Support:LED Cfg(67):LED Hold Time(6)
RESCAP— This bit configures the compensation model of the Impedance Track algorithm for reserve
capacity calculation.
0 = Light Load Compensation
1 = Average Load Compensation defined by Load Select (default)
Related Variables:
DF:Gas Gauging:IT Cfg(80):Load Select(0)
DF:Gas Gauging:IT Cfg(80):Reserve Cap-mAh(80)
DF:Gas Gauging:IT Cfg(80):Reserve Cap-mWh(82)
NCSMB— Disables extended SMBUS tTIMEOUT feature. Use this bit with caution.
0 = Normal SMBUS tTIMEOUT (default)
1 = Extended SMBUS tTIMEOUT
NRCHG— Enables the CHG FET to remain on during sleep when the bq20z60-R1/bq20z65-R1 is in
non-removable battery mode.
0 = The CHG FET turns off in Sleep Mode if the [NR] bit is set (default).
1 = The CHG FET remains on in Sleep Mode if the [NR] bit is set.
Related Variable:
DF:Configuration:Registers(64):Operation Cfg B(2)[NR]
CSYNC— Enables the bq20z60-R1/bq20z65-R1 to write RemainingCapacity equal to
FullChargeCapacity when a valid charge termination is detected.
0 = RemainingCapacity is not modified on valid primary charge termination.
1 = RemainingCapacity is written to equal FullChargeCapacity on valid primary charge
termination. (default)
Related Variables:
SBS:RemainingCapacity(0x00f)
SBS:FullChargeCapacity(0x10)
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Configuration
CHGTERM— This bit enables or disables the [TCA] and [FC] flags in BatteryStatus to be cleared after
charge termination is confirmed.
0 = [TCA] and [FC] are not cleared by primary charge termination confirmation, but are
cleared by other means. (default)
1 = [TCA] and [FC] flags are cleared on valid primary charge termination. Note: This does not
disable clearing the flags by TCA Clear % and FC Clear %.
Related Variables:
DF:Charge Control:Termination Cfg(36):Taper Current(2)
DF:Charge Control:Termination Cfg(36):Current Taper Window(8)
DF:Charge Control:Termination Cfg(36):TCA Clear %(10)
DF:Charge Control:Termination Cfg(36):FC Clear %(12)
SBS:Current(0x00a)
SBS:BatteryStatus(0x16)[FC],[TCA]
CCT— This bit sets the formula for updating Cycle Count.
0 = The bq20z60-R1/bq20z65-R1 uses the CC Threshold value. (default)
1 = The bq20z60-R1/bq20z65-R1 uses CC % of FullChargeCapacity.
Related Variables:
DF:SBS Configuration:Data(48):Cycle Count(16)
DF:SBS Configuration:Data(48):CC Threshold(18)
DF:SBS Configuration Data(48):CC %(18\\20)
SBS:FullChargeCapacity(0x10)
CHGSUSP— This bit enables the bq20z60-R1/bq20z65-R1 to turn off the CHG FET (and ZVCHG FET)
when in charge suspend mode.
0 = No FETs change in Charge Suspend mode. (default)
1 = CHG FET and ZVCHG FET (if used) turn off in Charge Suspend mode.
OTFET— This bit enables or disables FET actions from reacting to an overtemperature fault.
0 = There is NO FET action when an overtemperature condition is detected.
1 = When the [OTC] flag is set, then the CHG FET is turned off, and when the [OTD] flag is
set, then the DSG FET is turned off. (default)
Related Variable:
SBS:SafetyStatus(0x51)[OTC],[OTD]
CHGFET— This bit enables or disables the CHG FET from reacting to a valid charge termination.
0 = CHG FET stays on at charge termination ([TCA] is set). (default)
1 = CHG FET turns off at charge termination.
Related Variable:
SBS:BatteryStatus(0x16)[TCA]
CHGIN— This bit enables the CHG FET and ZVCHG FET (if used) to turn off when the
bq20z60-R1/bq20z65-R1 is in charge-inhibit mode.
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0 = No FET change in charge-inhibit mode. (default)
1 = CHG and ZVCHG FETs, if used, turn off in charge-inhibit mode.
Related Variable:
SBS:ChargingStatus(0x55)[XCHG]
NR— This bit configures the bq20z60-R1/bq20z65-R1 to be in removable or non-removable battery mode
and determines the recovery method for current-based primary protection features.
0 = Removable battery mode (default)
1 = Non-removable battery mode.
Related Variable:
DF:Configuration:Registers(64): Non-Removable Cfg(8)
CPE— This bit enables or disables PEC transmissions to the smart-battery charger for master-mode
alarm messages.
0 = No PEC byte on alarm warning to charger (default)
1 = PEC byte on alarm warning to charger
HPE— This bit enables or disables PEC transmissions to the smart-battery host for master-mode alarm
messages and prevents receiving communications from all sources in slave mode. If the host uses
PEC, this bit should be set.
0 = No PEC byte on alarm warning to host and receiving communications from all sources in
slave mode (default)
1 = PEC byte on alarm warning to host and receiving communications from all sources in
slave mode. If host uses PEC, this bit should be set.
BCAST— This bit enables or disables SBS broadcasts to the smart-battery charger and host.
0 = Broadcasts to host and charger disabled (default)
1 = Broadcasts to host and charger enabled
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Configuration
C.7.1.3 Operation Cfg C (Offset 4)
This register enables, disables, or configures various features of the bq20z60-R1/bq20z65-R1.
Table C-192. Operation Cfg C
Subclass
ID
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass Name Offset
Configuration
Name
Format
Unit
64
4
Operation Cfg C Hex
2
0x0000
0xffff
0x0130
Bit 7
Bit 6
RSVD
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
High Byte
Low Byte
RSVD
RSVD
RSVD
RSVD
RSVD
CHGOCV_ CELL_TAP
DIS
ER
RSVD
CUV_RECO OCV_WGH
V_CHG
LOCK_0
SUV_MOD
E
SHUTV
PRE_ZT_P
F_En
RSOCL
T
LEGEND: RSVD = Reserved and must be programmed to 0
Figure C-8. Operation Cfg C
CHGOCV_DIS— CHGOCV_DIS prevents OCV reading from being taken when under the flat volt max
and having come from charge. OCV readings are still taken if above flat volt max or if not coming
from charge.
0 = OCV reading is not taken when under the flat volt max and having come from charge.
1 = OCV reading is taken when under the flat volt max and having come from charge.
CELL_TAPER— Taper voltage (used for primary charge termination) is either cell voltage-based or pack
voltage-based depending on this bit.
0 = Pack voltage-based tapper voltage.
1 = Cell voltage-based tapper voltage.
CUV_RECOV_CHG— Enable charge current detection as part of CUV recovery.
0 = No charge current detection required for CUV recovery
1 = Charge current detection required for CUV recovery
OCV_WGHT— This bit enables evaluation of the accuracy of each state of charge reading from OCV
during relaxation. Used to take into account both previous and new state of charge estimates
weighed according to their respective accuracy. This results in improved accuracy and in reduction
of RelativeStateofCharge jumps after relaxation.
0 = Evaluation of the accuracy of each state of charge reading from OCV during relaxation is
disabled.
1 = Evaluation of the accuracy of each state of charge reading from OCV during relaxation is
enabled.
LOCK_0— This bit prevents RemainingCapacity and RelativeStateofCharge from increasing during
relaxation after 0 value was reached during discharge and operates in mAh or mWh according to
configuration of the BatteryMode to avoid possible oscillation when starting charge from fully
discharged state
0 = RemainingCapacity and RelativeStateofCharge are not prevented from increasing during
relaxation after 0 value was reached during discharge.
1 = RemainingCapacity and RelativeStateofCharge are prevented from increasing during
relaxation after 0 value was reached during discharge.
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SUV_MODE— This bit controls the operation of safety undervoltage PF mechanism.
0 = If at any time any cell voltage goes below SUV Threshold then SUV PF mechanism
starts.
1 = Cell voltage is checked only upon wakeup from Shutdown mode. Upon wakeup, the
charge and precharge FETs are turned off and the cell voltage is checked. If any cell
voltage is below SUV Threshold then SUV mechanism starts.
SHUTV— This bit configures the voltage threshold used when entering Shutdown mode.
0 = Shutdown occurs when Voltage ≤ Shutdown Voltage AND Current ≤ 0 for a period
greater than Shutdown Time.
1 = Shutdown occurs when Min (CellVoltage4..1) ≤ Cell Shutdown Voltage and Current ≤ 0
for a period greater than Cell Shutdown Time.
PRE_ZT_PF_En— This bit enables or disables permanent failures from occurring before the Impedance
Track ™ algorithm is enabled.
0 = All PFs (except DFF) are prevented from occurring until the Impedance Track ™ algorithm
is enabled. Shutdown is also disabled. See the following note.
1 = All PFs are allowed regardless of whether the Impedance Track ™ algorithm has been
enabled or not.
RSOCL— This bit determines the method in which RelativeStateOfCharge and RemainingCapacity are
updated to 100% when charging is complete.
0 = If the [RSOCL] bit in Operation Cfg C is cleared, then RelativeStateofCharge and
RemainingCapacity are not held at 99% until primary charge termination occurs.
Fractions of % greater than 99% are rounded up to display 100%.
1 = If the [RSOCL] bit in Operation Cfg C is set, then RelativeStateofCharge and
RemainingCapacity are held at 99% until primary charge termination occurs and only
display 100% on entering primary charge termination.
NOTE: PRE_ZT_PF_En—If this bit is set to 0, and a Permanent Failure does occur, PFStatus still
reports that the failure has occurred. Also, if the FETs have been turned on, they turn off if a
failure occurs. However, Data Flash write access is still granted and the Permanent Failure is
NOT logged in the PF Status section of Data Flash. The PFStatus indicator clears and the
FETs turn on once ManufacturerAccess(0x00) has received the IT Enable (0x0021)
command or the Reset (0x0041) command, assuming the Permanent Failure condition no
longer exists.
C.7.1.4 Permanent Fail Cfg (Offset 6)
The Permanent Fail Cfg register enables or disables the use of the SAFE pin when the corresponding
permanent fail error occurs. If the SAFE pin is driven high, Fuse Flag is set to 0x3672.
Table C-193. Permanent Fail Cfg
Subclass
ID
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass Name Offset Name
Format
Unit
64
Configuration
6
Permanent Fail
Cfg
Hex
2
0x0000
0xffff
0x0000
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Configuration
Bit 7
RSVD
XDFF
Bit 6
Bit 5
XSUV
Bit 4
Bit 3
Bit 2
Bit 1
XAFE_P
XSOV
Bit 0
High Byte
Low Byte
XVSHUT
XDFETF
XSOPT1
XCIM_R
XSOCD
XSOT1D
XSOCC
XSOT1C
XAFE_C
XPFIN
XCFETF
LEGEND: RSVD = Reserved and must be programmed to 0
Figure C-9. Permanent Fail Cfg
XVSHUT— If this bit is set AND any permanent failure happens AND the bq20z60-R1/bq20z65-R1 goes
into shutdown, the SAFE pin is driven high.
XSUV— If this bit is set AND a safety undervoltage permanent failure occurs, the SAFE pin is driven
high.
XSOPT1— If this bit is set AND an open thermistor permanent failure on TS1 occurs, the SAFE pin is
driven high.
XSOCD— If this bit is set AND a discharge safety overcurrent permanent failure occurs, the SAFE pin is
driven high.
XSOCC— If this bit is set AND a charge safety overcurrent failure occurs the SAFE pin is driven high.
XAFE_P— If this bit is set AND a periodic AFE-communications permanent failure occurs, the SAFE pin
is driven high.
XAFE_C— If this bit is set AND an AFE-communications permanent failure occurs, the SAFE pin is
driven high.
XDFF— If this bit is set AND a Data Flash Fault permanent failure occurs, the SAFE pin is driven high.
XDFETF— If this bit is set AND a DSG FET permanent failure occurs, the SAFE pin is driven high.
XCFETF— If this bit is set AND a CHG FET permanent failure occurs, the SAFE pin is driven high.
XCIM_R— If this bit is set AND a cell imbalance at rest permanent failure occurs, the SAFE pin is driven
high.
XSOT1D— If this bit is set AND safety over temperature on TS1 during discharge failure occurs the
SAFE pin is driven high..
XSOT1C— If this bit is set AND safety over temperature on TS1 during charge failure occurs the SAFE
pin is driven high..
XSOV— If this bit is set AND a safety overvoltage permanent failure occurs, the SAFE pin is driven high.
XPFIN— If this bit is set AND an external input indication permanent failure occurs, the SAFE pin is
driven high.
Related Variables:
•
•
SBS:PFStatus (0x53)
SBS:PFStatus2 (0x6b)
C.7.1.5 Permanent Fail Cfg 2 (Offset 8)
The Permanent Fail Cfg 2 register enables or disables the use of the SAFE pin when the corresponding
permanent fail error occurs. If the SAFE pin is driven high, Fuse Flag is set to 0x3672
Table C-194. Permanent Fail Cfg 2
Subclass
ID
Subclass
Name
Size in
Bytes
Min
Value
Max
Value
Offset Name
Format
Default Value Unit
64
Configuration
8
Permanent Fail
Cfg 2
Hex
2
0x0000
0xffff
0x0000
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Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
RSVD
Bit 2
RSVD
Bit 1
RSVD
Bit 0
RSVD
High Byte
Low Byte
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
XSOPT2
XSOT2D
XSOT2C
XCIM_A
LEGEND: RSVD = Reserved and must be programmed to 0
Figure C-10. Permanent Fail Cfg 2
XSOPT2— If this bit is set AND an open thermistor permanent failure on TS2 occurs, the SAFE pin is
driven high.
XSOT2D— If this bit is set AND safety over temperature on TS2 during discharge failure occurs the
SAFE pin is driven high.
XSOT2C— If this bit is set AND safety over temperature on TS2 during charge failure occurs the SAFE
pin is driven high.
XCIM_A— If this bit is set AND a cell imbalance while active permanent failure occurs, the SAFE pin is
driven high.
C.7.1.6 Non-Removable Cfg (Offset 10)
If the bq20z60-R1/bq20z65-R1 is in removable battery mode ([NR] = 0), these bits set the recovery
method from 1st-level safety errors. If the corresponding bit is set, this gives an additional recovery option
for the particular fault. If [NR] is set to 1, this register has no effect.
Table C-195. Non-Removable Cfg
Size in
Bytes
Subclass ID Subclass Name
64 Configuration
Offset Name
10 Non-Removable Cfg
Format
Min Value Max Value Default Value Unit
Hex
2
0x0000
0xffff
0x0000
Bit 7
Bit 6
Bit 5
OCD
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
High Byte
Low Byte
RSVD
RSVD
RSVD
RSVD
OCC
RSVD
RSVD
RSVD
AOCD
RSVD
ASCC
RSVD
ASCD
RSVD
RSVD
LEGEND: RSVD = Reserved and must be programmed to 0
Figure C-11. Non-Removable Cfg
OCD— Overcurrent in Discharge
OCC— Overcurrent in Charge
AOCD— AFE Overcurrent in Discharge
ASCC— Short Circuit in Charge
ASCD— Short Circuit in Discharge
Related Variable:
•
DF:Configuration:Registers(64):Operation Cfg B(2)[NR]
C.7.2 AFE (Subclass 65)
C.7.2.1 AFE.State_CTL (Offset 1)
The AFE.State_CTL register implements the STATE_CONTROL register of the AFE.
Table C-196. AFE.State_CTL
Subclass
ID
Size in
Bytes
Subclass Name Offset Name
AFE AFE.State_CTL
Format
Min Value Max Value Default Value Unit
65
1
Hex
1
0x00
0xff
0x00
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LED Support
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Low Byte
RSVD
RSVD
RSVD
RSNS
RSVD
RSVD
RSVD
RSVD
LEGEND: RSVD = Reserved and must be programmed to 0
RSNS— If this bit is set to 1, then the AFE OC Dsg, AFE SC Chg Cfg, and AFE SC Dsg Cfg voltage
thresholds are divided by 2, which is suitable for a low sense resistor value. Note: Do not alter bits
3:0.
C.8 LED Support
C.8.1 LED Cfg (Subclass 67)
C.8.1.1 LED Flash Period (Offset 0)
This value sets the LED flashing time period at a 50% duty cycle for alarm conditions.
Table C-197. LED Flash Period
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
67 LED Cfg
Name
Format
Unit
0
LED Flash Period
Unsigned integer
2
0
65,535
512
500μs
Related Variables:
DF:LED Support:LED Cfg(67):LED Hold Time(6)
•
C.8.1.2 LED Blink Period (Offset 2)
This value sets the LED blinking time period to a 50% duty cycle for the LED indicating the highest actual
charge of the battery.
Table C-198. LED Blink Period
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
67 LED Cfg
Name
Format
Unit
2
LED Blink Period
Unsigned integer
2
0
65,535
1024
500μs
Related Variables:
DF:LED Support:LED Cfg(67):LED Hold Time(6)
•
C.8.1.3 LED Delay (Offset 4)
This value sets the activation delay time from one LED to the next LED after the display is activated.
Table C-199. LED Delay
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
67 LED Cfg
Name
Format
Unit
4
LED Delay
Unsigned integer
2
1
65,535
100
500μs
Related Variables:
DF:LED Support:LED Cfg(67):LED Hold Time(6)
•
C.8.1.4 LED Hold Time (Offset 6)
This value sets the time the LED stays on after all LEDs required to indicate the state of charge are being
activated.
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Table C-200. LED Hold Time
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
67 LED Cfg
Name
Format
Unit
6
LED Hold Time
Unsigned integer
1
0
255
4
s
Related Variables:
DF:LED Support:LED Cfg(67):LED Delay(4)
•
C.8.1.5 CHG Flash Alarm (Offset 7)
If the bq20z60-R1/bq20z65-R1 is in charge mode ([DSG] = 0) and the battery charge is below this
threshold the remaining enabled LEDs start flashing at LED Flash Period. Set to -1 to disable this feature.
Table C-201. CHG Flash Alarm
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
67 LED Cfg
Name
Format
Unit
7
CHG Flash Alarm
Integer
1
-1
101
10
%
Related Variables:
•
•
•
•
•
DF:Configuration:Registers(64):Operation Cfg A(0)[DMODE],[LED1],[LED0]
DF:LED Support:LED Cfg(67):LED Flash Period(0)
SBS:RelativeStateOfCharge(0x00d)
SBS:AbsoluteStateOfCharge(0x00e)
SBS:BatteryStatus(0x16)[DSG]
C.8.1.6 CHG Thresh1 (Offset 8)
If the bq20z60-R1/bq20z65-R1 is in charge mode ([DSG] = 0) and the battery charge is below this
threshold, LED 1 is disabled.
Table C-202. CHG Thresh 1
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
67 LED Cfg
Name
Format
Unit
8
CHG Thresh 1
Integer
1
-1
101
0
%
Related Variables:
•
•
•
•
DF:Configuration:Registers(64):Operation Cfg A(0)[DMODE],[LED1],[LED0]
SBS:RelativeStateOfCharge(0x00d)
SBS:AbsoluteStateOfCharge(0x00e)
SBS:BatteryStatus(0x16)[DSG]
C.8.1.7 CHG Thresh 2 (Offset 9)
If the bq20z60-R1/bq20z65-R1 is in charge mode ([DSG] = 0) and the battery charge is below this
threshold, LED 2 is disabled.
Table C-203. CHG Thresh 2
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
67 LED Cfg
Name
Format
Unit
9
CHG Thresh 2
Integer
1
-1
101
20
%
Related Variables:
•
•
•
•
DF:Configuration:Registers(64):Operation Cfg A(0)[DMODE],[LED1],[LED0]
SBS:RelativeStateOfCharge(0x00d)
SBS:AbsoluteStateOfCharge(0x00e)
SBS:BatteryStatus(0x16)[DSG]
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C.8.1.8 CHG Thresh 3 (Offset 10)
If the bq20z60-R1/bq20z65-R1 is in charge mode ([DSG] = 0) and the battery charge is below this
threshold, LED 3 is disabled.
Table C-204. CHG Thresh 3
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
67 LED Cfg 10
Name
Format
Unit
CHG Thresh 3
Integer
1
-1
101
40
%
Related Variables:
•
•
•
•
DF:Configuration:Registers(64):Operation Cfg A(0)[DMODE],[LED1],[LED0]
SBS:RelativeStateOfCharge(0x00d)
SBS:AbsoluteStateOfCharge(0x00e)
SBS:BatteryStatus(0x16)[DSG]
C.8.1.9 CHG Thresh 4 (Offset 11)
If the bq20z60-R1/bq20z65-R1 is in charge mode ([DSG] = 0) and the battery charge is below this
threshold, LED 4 is disabled.
Table C-205. CHG Thresh 4
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
67 LED Cfg 11
Name
Format
Unit
CHG Thresh 4
Integer
1
-1
101
60
%
Related Variables:
•
•
•
•
DF:Configuration:Registers(64):Operation Cfg A(0)[DMODE],[LED1],[LED0]
SBS:RelativeStateOfCharge(0x00d)
SBS:AbsoluteStateOfCharge(0x00e)
SBS:BatteryStatus(0x16)[DSG]
C.8.1.10 CHG Thresh 5 (Offset 12)
If the bq20z60-R1/bq20z65-R1 is in charge mode ([DSG] = 0) and the battery charge is below this
threshold, LED 5 is disabled.
Table C-206. CHG Thresh 5
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
67 LED Cfg 12
Name
Format
Unit
CHG Thresh 5
Integer
1
-1
101
80
%
Related Variables:
•
•
•
•
DF:Configuration:Registers(64):Operation Cfg A(0)[DMODE],[LED1],[LED0]
SBS:RelativeStateOfCharge(0x00d)
SBS:AbsoluteStateOfCharge(0x00e)
SBS:BatteryStatus(0x16)[DSG]
C.8.1.11 DSG Flash Alarm (Offset 13)
If the bq20z60-R1/bq20z65-R1 is in discharge mode ([DSG] = 1) and the battery charge is below this
threshold, the remaining enabled LEDs start flashing with LED Flash Period. Set to -1 to disable this
feature..
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Table C-207. DSG Flash Alarm
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
67 LED Cfg 13
Name
Format
Unit
DSG Flash Alarm
Integer
1
-1
101
10
%
Related Variables:
•
•
•
•
DF:Configuration:Registers(64):Operation Cfg A(0)[DMODE],[LED1],[LED0]
SBS:RelativeStateOfCharge(0x00d)
SBS:AbsoluteStateOfCharge(0x00e)
SBS:BatteryStatus(0x16)[DSG]
C.8.1.12 DSG Thresh 1 (Offset 14)
If the bq20z60-R1/bq20z65-R1 is in discharge mode ([DSG] = 1) and the battery charge is below this
threshold, LED 1 is disabled.
Table C-208. DSG Thresh 1
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
67 LED Cfg 14
Name
Format
Unit
DSG Thresh 1
Integer
1
-1
101
0
%
Related Variables:
•
•
•
•
DF:Configuration:Registers(64):Operation Cfg A(0)[DMODE],[LED1],[LED0]
SBS:RelativeStateOfCharge(0x00d)
SBS:AbsoluteStateOfCharge(0x00e)
SBS:BatteryStatus(0x16)[DSG]
C.8.1.13 DSG Thresh 2 (Offset 15)
If the bq20z60-R1/bq20z65-R1 is in discharge mode ([DSG] = 1) and the battery charge is below this
threshold, LED 2 is disabled.
Table C-209. DSG Thresh 2
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
67 LED Cfg 15
Name
Format
Unit
DSG Thresh 2
Integer
1
-1
101
20
%
Related Variables:
•
•
•
•
DF:Configuration:Registers(64):Operation Cfg A(0)[DMODE],[LED1],[LED0]
SBS:RelativeStateOfCharge(0x00d)
SBS:AbsoluteStateOfCharge(0x00e)
SBS:BatteryStatus(0x16)[DSG]
C.8.1.14 DSG Thresh 3 (Offset 16)
If the bq20z60-R1/bq20z65-R1 is in discharge mode ([DSG] = 1) and the battery charge is below this
threshold, LED 3 is disabled.
Table C-210. DSG Thresh 3
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
Name
Format
Unit
67
LED Cfg
16
DSG Thresh 3
Integer
1
-1
101
40
%
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Related Variables:
•
•
•
•
DF:Configuration:Registers(64):Operation Cfg A(0)[DMODE],[LED1],[LED0]
SBS:RelativeStateOfCharge(0x00d)
SBS:AbsoluteStateOfCharge(0x00e)
SBS:BatteryStatus(0x16)[DSG]
C.8.1.15 DSG Thresh 4 (Offset 17)
If the bq20z60-R1/bq20z65-R1 is in discharge mode ([DSG] = 1) and the battery charge is below this
threshold, LED 4 is disabled.
Table C-211. DSG Thresh 4
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
67 LED Cfg 17
Name
Format
Unit
DSG Thresh 4
Integer
1
-1
101
60
%
Related Variables:
•
•
•
•
DF:Configuration:Registers(64):Operation Cfg A(0)[DMODE],[LED1],[LED0]
SBS:RelativeStateOfCharge(0x00d)
SBS:AbsoluteStateOfCharge(0x00e)
SBS:BatteryStatus(0x16)[DSG]
C.8.1.16 DSG Thresh 5 (Offset 18)
If the bq20z60-R1/bq20z65-R1 is in discharge mode ([DSG] = 1) and the battery charge is below this
threshold, LED 5 is disabled.
Table C-212. DSG Thresh 5
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
67 LED Cfg 18
Name
Format
Unit
DSG Thresh 5
Integer
1
-1
101
80
%
Related Variables:
•
•
•
•
DF:Configuration:Registers(64):Operation Cfg A(0)[DMODE],[LED1],[LED0]
SBS:RelativeStateOfCharge(0x00d)
SBS:AbsoluteStateOfCharge(0x00e)
SBS:BatteryStatus(0x16)[DSG]
C.8.1.17 Sink Current (Offset 19)
The sink current setting of the LED inputs to the bq20z60-R1/bq20z65-R1 can be programmed with the
following settings. All of the LEDs are programmed with the same current level.
Table C-213. Sink Current
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
Name
Format
Unit
67
LED Cfg
19
Sink Current
Unsigned integer
1
0
3
3
Bit 7
Bit 6
RSVD
Bit 5
Bit 4
Bit 3
RSVD
Bit 2
RSVD
Bit 1
ILED1
Bit 0
ILED0
Low Byte
RSVD
RSVD
RSVD
LEGEND: RSVD = Reserved and must be programmed to 0
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Table C-214. Sink Current Configuration
ILED1
ILED0
Sink Current
0 mA
0
0
1
1
0
1
0
3 mA
4 mA
1
5 mA (default)
C.9 Power
C.9.1 Power (Subclass 68)
C.9.1.1 Flash Update OK Voltage (Offset 0)
This value sets the minimum allowed battery pack voltage for a flash update. If the battery pack Voltage is
below this threshold, no flash update is made. If a charger is detected by way of Charger Present
voltage, it overrides Flash Update OK Voltage and the flash can be updated.
Table C-215. Flash Update OK Voltage
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
68 Power
Name
Format
Unit
0
Flash Update OK
Voltage
Integer
2
6000
20,000
7500
mV
Related Variables:
•
•
DF:Power:Power(68):Charger Present(8)
SBS:Voltage(0x009)
C.9.1.2 Shutdown Voltage (Offset 2)
The bq20z60-R1/bq20z65-R1 goes into shutdown mode if battery pack Voltage is equal to or less than
Shutdown Voltage for Shutdown Time and has been out of shutdown mode for at least
Shutdown Time.
Table C-216. Shutdown Voltage
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
68 Power
Name
Format
Unit
2
Shutdown Voltage
Integer
2
5000
20,000
7000
mV
Related Variables:
•
•
DF:Power:Power(68):Shutdown Time(4)
SBS:Voltage(0x009)
C.9.1.3 Shutdown Time (Offset 4)
The bq20z60-R1/bq20z65-R1 goes into shutdown mode if battery pack Voltage is equal to or less than
Shutdown Voltage for Shutdown Time and has been out of shutdown mode for at least
Shutdown Time.
Table C-217. Shutdown Time
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name
Offset
Name
Format
Unit
68
Power
4
Shutdown Time
Unsigned integer
1
0
240
10
s
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Related Variables:
•
•
DF:Power:Power(68):Shutdown Voltage(2)
SBS:Voltage(0x009)
C.9.1.4 Cell Shutdown Voltage (Offset 5)
The bq20z60-R1/bq20z65-R1 goes into shutdown mode if Min (CellVoltage4..1) is equal to or less than
Cell Shutdown Voltage for 10s and has been out of shutdown mode for at least Cell Shutdown Time.
Table C-218. Cell Shutdown Voltage
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
68 Power
Name
Format
Unit
5
Cell Shutdown
Voltage
Integer
2
0
5000
1750
mV
Related Variables:
•
•
•
•
•
DF:Power:Power(68):Cell Shutdown Time(7)
SBS:CellVoltage4(0x3c)
SBS:CellVoltage3(0x3d)
SBS:CellVoltage2(0x3e)
SBS:CellVoltage1(0x3f)
C.9.1.5 Cell Shutdown Time (Offset 7)
The bq20z60-R1/bq20z65-R1 goes into shutdown mode if Min (CellVoltage4..1) is equal to or less than
Cell Shutdown Voltage for 10 s and has been out of shutdown mode for at least Cell Shutdown Time.
Table C-219. Cell Shutdown Time
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name
68 Power
Offset
Name
Format
Unit
7
Cell Shutdown
Time
Unsigned integer
1
0
240
10
s
Related Variables:
•
•
•
•
•
DF:Power:Power(68):Cell Shutdown Voltage(5)
SBS:CellVoltage4(0x3c)
SBS:CellVoltage3(0x3d)
SBS:CellVoltage2(0x3e)
SBS:CellVoltage1(0x3f)
C.9.1.6 Charger Present (Offset 8)
The bq20z60-R1/bq20z65-R1 detects a charger when the voltage at the PACK pin of the AFE is above
the Charger Present threshold. If a charger is detected, it overrides Flash Update OK Voltage and the
flash can be updated.
Table C-220. Charger Present
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
68 Power
Name
Format
Unit
8
Charger Present
Integer
2
0
23,000
3000
mV
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Related Variables:
•
•
DF:Power:Power(68):Flash Update OK Voltage(0)
SBS:PackVoltage(0x5a)
C.9.1.7 Sleep Current (Offset 10)
The bq20z60-R1/bq20z65-R1 is allowed to go into sleep mode if the charge or discharge current is below
Sleep Current. Sleep mode can be enabled with the [SLEEP] bit. If the absolute value of Current is
above Sleep Current, the bq20z60-R1/bq20z65-R1 returns to normal mode.
Table C-221. Sleep Current
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
68 Power 10
Name
Format
Unit
Sleep Current
Integer
2
0
100
10
mA
Related Variables:
•
•
•
•
DF:Configuration:Registers(64):Operation Cfg A(0)[SLEEP]
DF:Power:Power(68):Bus Low Time(12)
SBS:ManufacturerAccess(0x00):Sleep(0x0011)
SBS:Current(0x00a)
C.9.1.8 Bus Low Time (Offset 12)
The bq20z60-R1/bq20z65-R1 is allowed to go into sleep mode if it is enabled with the [SLEEP] bit and if
the SMBus lines are low for a period greater than Bus Low Time.
Table C-222. Bus Low Time
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name
68 Power
Offset
Name
Format
Unit
12
Bus Low Time
Unsigned integer
1
0
255
5
s
Related Variables:
•
•
DF:Configuration:Registers(64):Operation Cfg A(0)[SLEEP]
DF:Power:Power(68):Sleep Current(10)
C.9.1.9 Cal Inhibit Temp Low (Offset 13)
The bq20z60-R1/bq20z65-R1 does not perform auto-calibration on entry to sleep mode if Temperature is
below Cal Inhibit Temp Low or above Cal Inhibit Temp High.
Table C-223. Cal Inhibit Temp Low
Subclass
ID
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass Name
Offset
Name
Format
Unit
68
Power
13
Cal Inhibit Temp Low
Integer
2
–400
1200
50
0.1°C
Related Variables:
•
•
DF:Power:Power(68):Cal Inhibit Temp High(15)
SBS:Temperature(0x008)
C.9.1.10 Cal Inhibit Temp High (Offset 15)
The bq20z60-R1/bq20z65-R1 does not perform auto-calibration on entry to sleep mode if Temperature is
below Cal Inhibit Temp Low or above Cal Inhibit Temp High
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Table C-224. Cal Inhibit Temp High
Subclass Subclass
Size in
Bytes
Min
Value
Max
Value
Default
Value
Offset
Name
Format
Unit
0.1°C
ID
Name
68
Power
15
Cal Inhibit Temp
High
Integer
2
–400
1200
450
Related Variables:
•
•
DF:Power:Power(68):Cal Inhibit Temp Low(13)
SBS:Temperature(0x008)
C.9.1.11 Sleep Voltage Time (Offset 17)
During sleep mode, temperature and voltage measurements are taken in Sleep Voltage Time intervals.
Table C-225. Sleep Voltage Time
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name
68 Power
Offset
Name
Format
Unit
17
Sleep Voltage Time
Unsigned integer
1
1
240
5
s
Related Variables:
•
•
•
•
•
•
•
DF:Configuration:Registers(64):Operation Cfg A(0)[SLEEP]
SBS:Temperature(0x008)
SBS:Voltage(0x009)
SBS:CellVoltage4(0x3c)
SBS:CellVoltage3(0x3d)
SBS:CellVoltage2(0x3e)
SBS:CellVoltage1(0x3f)
C.9.1.12 Sleep Current Time (Offset 18)
During sleep mode, current is measured in Sleep Current Time intervals.
Table C-226. Sleep Current Time
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
68 Power 18
Name
Format
Unit
Sleep Current Time
Unsigned integer
1
1
255
20
s
Related Variables:
•
•
DF:Configuration:Registers(64):Operation Cfg A(0)[SLEEP]
SBS:Current(0x00a)
C.9.1.13 Wake Current Reg (Offset 19)
Wake Current Reg configures the current threshold required to wake the bq20z60-R1/bq20z65-R1 from
sleep mode by detecting voltage across SRP and SRN.
Table C-227. Wake Current Reg
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
68 Power 19
Name
Format
Unit
Wake Current Reg
Hex
1
0x00
0xff
0x00
Bit 7
RSVD
Bit 6
Bit 5
RSVD
Bit 4
RSVD
Bit 3
Bit 2
IWAKE
Bit 1
Bit 0
RSNS0
Low Byte
RSVD
RSVD
RSNS1
LEGEND: RSVD = Reserved and must be programmed to 0
Figure C-12. Wake Current Reg
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IWAKE— This bit sets the current threshold for the Wake function.
0 = 0.5 A (or if RSNS0 = RSNS1 = 0, then this function is disabled)
1 = 1 A (or if RSNS0 = RSNS1 = 0, then this function is disabled)
Table C-228. Wake Current Reg
RSNS1
RSNS0
Resistance
Disabled (default)
2.5 mΩ
0
0
1
1
0
1
0
1
5 mΩ
10 mΩ
Related Variables:
•
•
DF:Configuration:Registers(64):Operation Cfg A(0)[SLEEP]
SBS:Current(0x00a)
C.9.1.14 Sealed Ship Delay (Offset 20)
After the bq20z60-R1/bq20z65-R1 receives the 2 consecutive MAC (0x0010) commands in sealed mode,
the CHG, DSG, and ZVCHG FETs are turned off after Sealed Ship Delay time period. After the passage
of another Sealed Ship Delay period the bq20z60-R1/bq20z65-R1 enters ship mode (i. e . 2 times Sealed
Ship Delay after the 2 commands.
Table C-229. Sealed Ship Delay
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
68 Power 20
Name
Format
Unit
Sealed Ship Delay
Unsigned integer
1
0
255
5
s
Related Variables:
•
•
DF:Power:Power(68):Flash Update OK Voltage(0)
SBS:PackVoltage(0x5a)
C.10 Gas Gauging
C.10.1 IT Cfg (Subclass 80)
C.10.1.1 Load Select (Offset 0)
This value defines the load compensation model used by the Impedance Track algorithm for the
RemainingCapacity calculation.
Constant Current (Load Mode = 0)
0 = Avg I Last Run
Constant Power (Load Mode = 1)
Avg P Last Run
1 = Present average discharge current
2 = Current
Present average discharge power
Current x Voltage
3 = AverageCurrent (default)
4 = Design Capacity / 5
5 = AtRate (mA)
AverageCurrent x average Voltage
Design Energy / 5
AtRate (10 mW)
6 = User Rate-mA
User Rate-10mW
7 = Max Avg I Last Run
Max Avg P Last Run
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Table C-230. Load Select
Subclass
ID
Size in
Bytes
Min
Max
Default
Subclass Name
Offset
Name
Load Select
Format
Unit
Value Value Value
80
IT Cfg
0
Unsigned integer
1
0
255
7
Related Variables:
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
DF:SBS Configuration:Data(48):Design Capacity(22)
DF:SBS Configuration:Data(48):Design Energy(24)
DF:Gas Gauging:IT Cfg(80):Load Mode(1)
DF:Gas Gauging:IT Cfg(80):User Rate-mA(76)
DF:Gas Gauging:IT Cfg(80):User Rate-10mW(78)
DF:Gas Gauging:State(82):Avg I Last Run(21)
DF:Gas Gauging:State(82):Avg P Last Run(23)
DF:Gas Gauging:State(82):Max Avg I Last Run(31)
DF:Gas Gauging:State(82):Max Avg P Last Run(33)
SBS.BatteryMode(0x003)[CapM]
SBS:AtRate(0x004)
SBS:Voltage(0x009)
SBS:Current(0x00a)
SBS:AverageCurrent(0x00b)
SBS:RemainingCapacity(0x00f)
C.10.1.2 Load Mode (Offset 1)
This value defines the load mode used by the Impedance Track algorithm for the RemainingCapacity
calculation.
0 = Constant Current (default)
1 = Constant Power
Table C-231. Load Mode
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
80 IT Cfg
Name
Format
Unit
1
Load Mode
Unsigned integer
1
0
255
0
Related Variables:
•
•
DF:Gas Gauging:IT Cfg(80):Load Select(0)
SBS:RemainingCapacity(0x00f)
C.10.1.3 Term Voltage (Offset 60)
This value is the absolute minimum pack voltage used by the Impedance Track algorithm for a capacity
calculation and should also be set to the absolute minimum pack voltage used by the application. The
reserve capacity function also reserves charge where zero RemainingCapacity is reported and the
Term Voltage is reached.
Table C-232. Term Voltage
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
80 IT Cfg 60
Name
Format
Unit
Term Voltage
Integer
2
–32,768
32,767
12,000
mV
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Related Variables:
•
•
•
•
DF:Gas Gauging:IT Cfg(80):Reserve Cap-mAh(80)
DF:Gas Gauging:IT Cfg(80):Reserve Cap-mWh(82)
SBS:Voltage(0x009)
SBS:RemainingCapacity(0x00f)
C.10.1.4 User Rate-mA (Offset 77)
This value specifies the discharge rate used by the Impedance Track algorithm for the RemainingCapacity
calculation, if selected by Load Select.
Table C-233. User Rate-mA
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
80 IT Cfg 77
Name
Format
Unit
User Rate-mA
Integer
2
-9000
0
0
mA
Related Variables:
•
•
•
DF:Gas Gauging:IT Cfg(80):Load Select(0)
DF:Gas Gauging:IT Cfg(80):Load Mode(1)
SBS:RemainingCapacity(0x00f)
C.10.1.5 User Rate-10mW (Offset 79)
This value specifies the discharge rate in 10 mW used by the Impedance Track algorithm for the
RemainingCapacity calculation, if selected by Load Select.
Table C-234. User Rate-mW
Subclass
ID
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass Name
Offset
Name
Format
Unit
80
IT Cfg
79
User Rate-10mW
Integer
2
-32,768
0
0
10 mW
Related Variables:
•
•
•
DF:Gas Gauging:IT Cfg(80):Load Select(0)
DF:Gas Gauging:IT Cfg(80):Load Mode(1)
SBS:RemainingCapacity(0x00f)
C.10.1.6 Reserve Cap-mAh (Offset 81)
This value reserves an amount of charge, in mAh if [CapM] = 0, for the system to react if the
RemainingCapacity reports zero energy remaining in the battery. The Reserve Cap-mAh reserves an
amount of charge between when the final Term Voltage is reached and the RemainingCapacity reports
zero energy. The FullChargeCapacity function reports the internal full charge capacity
– Reserve Cap-mAh.
Table C-235. Reserve Cap-mAh
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
80 IT Cfg 81
Name
Format
Unit
Reserve Cap-mAh
Integer
2
0
9000
0
mAh
Related Variables:
•
•
•
•
•
•
DF:Gas Gauging:IT Cfg(80):Load Mode(1)
DF:Gas Gauging:IT Cfg(80):Term Voltage(59)
DF:Configuration:Registers(64):Operation Cfg B(2)[RESCAP]
SBS:BatteryMode(0x003):[CapM]
SBS:RemainingCapacity(0x00f)
SBS:FullChargeCapacity(0x10)
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Gas Gauging
C.10.1.7 Reserve Cap-mWh (Offset 83)
This value reserves an amount of charge in, 10 mWh if [CapM] = 1, for the system to react if the
RemainingCapacity reports zero energy remaining in the battery. The Reserve Cap-mWh reserves an
amount of charge between when the final Term Voltage is reached and the RemainingCapacity reports
zero energy. The FullChargeCapacity function reports the internal full charge capacity
– Reserve Cap-mWh.
Table C-236. Reserve Cap-mAh
Subclass
ID
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass Name Offset
IT Cfg 83
Name
Format
Unit
80
Reserve Cap-mWh
Integer
2
0
14,000
0
10 mWh
Related Variables:
•
•
•
•
•
•
DF:Gas Gauging:IT Cfg(80):Load Mode(1)
DF:Gas Gauging:IT Cfg(80):Term Voltage(59)
DF:Configuration:Registers(64):Operation Cfg B(2)[RESCAP]
SBS:BatteryMode(0x003):[CapM]
SBS:RemainingCapacity(0x00f)
SBS:FullChargeCapacity(0x10)
C.10.1.8 Ra Max Delta (Offset 88)
In order to prevent abnormally fast resistance change, resistance change is limited to old value ±Ra Max
Delta (mΩ). Recommended setting is 15% of 4 Ra grid point value, after optimized values of Ra are
obtained from optimization cycle.
Table C-237. Ra Max Delta
Subclass
ID
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass Name Offset
IT Cfg 88
Name
Format
Unit
80
Ra Max Delta
Integer
2
0
32,000
44
10 mWh
Related Variables:
•
•
•
DF:Gas Gauging:IT Cfg(80):Load Mode(1)
SBS:RemainingCapacity(0x00f)
SBS:FullChargeCapacity(0x10)
C.10.2 Current Thresholds (Subclass 81)
C.10.2.1 Dsg Current Threshold (Offset 0)
The bq20z60-R1/bq20z65-R1 enters discharge mode from relaxation mode or charge mode if Current <
(–)Dsg Current Threshold.
Table C-238. Dsg Current Threshold
Subclass
ID
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass Name Offset
Name
Format
Unit
81
Current
0
Dsg Current Threshold
Integer
2
0
2000
100
mA
Thresholds
Related Variables:
•
•
SBS:Current(0x00a)
SBS:BatteryStatus(0x16)[DSG]
C.10.2.2 Chg Current Threshold (Offset 2)
The bq20z60-R1/bq20z65-R1 enters charge mode from relaxation mode or discharge mode if Current >
Chg Current Threshold.
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Table C-239. Chg Current Threshold
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
Name
Format
Unit
81
Current
2
Chg Current Threshold
Integer
2
0
2000
50
mA
Thresholds
Related Variables:
•
•
SBS:Current(0x00a)
SBS:BatteryStatus(0x16)[DSG]
C.10.2.3 Quit Current (Offset 4)
The bq20z60-R1/bq20z65-R1 enters relaxation mode from charge mode if Current goes below
Quit Current for a period of Chg Relax Time. The bq20z60-R1/bq20z65-R1 enters relaxation mode from
discharge mode if Current goes above (–)Quit Current for a period of Dsg Relax Time.
Table C-240. Quit Current
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
Name
Format
Unit
81
Current
4
Quit Current
Integer
2
0
1000
10
mA
Thresholds
Related Variables:
•
•
•
•
DF:Gas Gauging:Current Thresholds(81):Dsg Relax Time(6)
DF:Gas Gauging:Current Thresholds(81):Chg Relax Time(7)
SBS:Current(0x00a)
SBS:BatteryStatus(0x16)[DSG]
C.10.2.4 Dsg Relax Time (Offset 6)
The bq20z60-R1/bq20z65-R1 enters relaxation mode from discharge mode if Current goes above
(–)Quit Current for at least Dsg Relax Time.
Table C-241. Dsg Relax Time
Size in Min
Bytes Value Value
Max
Default
Value
Subclass ID
Subclass Name
Offset
Name
Format
Unit
81
Current Thresholds
6
Dsg Relax Time
Unsigned integer
1
0
240
1
s
Related Variables:
•
•
•
DF:Gas Gauging:Current Thresholds(81):Quit Current(4)
SBS:Current(0x00a)
SBS:BatteryStatus(0x16)[DSG]
C.10.2.5 Chg Relax Time (Offset 7)
The bq20z60-R1/bq20z65-R1 enters relaxation mode from charge mode if Current goes below
Quit Current for at least Chg Relax Time.
Table C-242. Chg Relax Time
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
Name
Format
Unit
81
Current
7
Chg Relax Time
Unsigned integer
1
0
240
60
s
Thresholds
Related Variables:
•
•
•
DF:Gas Gauging:Current Thresholds(81):Quit Current(4)
SBS:Current(0x00a)
SBS:BatteryStatus(0x16)[DSG]
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Gas Gauging
C.10.3 State (Subclass 82)
C.10.3.1 Qmax Cell 0..3 (Offset 0..6)
These values define the maximum chemical capacity for each cell used for the capacity calculation. The
value should be taken directly from the battery cell datasheet.
Table C-243. Qmax Cell 0..3
Size in
Bytes
Subclass ID Subclass Name
82 State
Offset
Name
Format
Min Value Max Value Default Value Unit
0
2
4
6
Qmax Cell 0
Qmax Cell 1
Qmax Cell 2
Qmax Cell 3
Integer
2
2
2
2
0
0
0
0
32,767
32,767
32,767
32,767
4400
4400
4400
4400
mAh
mAh
mAh
mAh
Related Variables:
•
•
DF:Gas Gauging:State(82):Qmax Pack(8)
SBS:OperationStatus(0x54)[QEN]
C.10.3.2 Qmax Pack (Offset 8)
This value defines the maximum chemical capacity of the battery pack. It usually is set to the smallest
value of Qmax Cell 0..3.
Table C-244. Qmax Pack
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
82 State
Name
Format
Unit
8
Qmax Pack
Integer
2
0
32,767
4400
mAh
Related Variables:
•
•
•
•
•
DF:Gas Gauging:State(82):Qmax Cell 0(0)
DF:Gas Gauging:State(82):Qmax Cell 1(2)
DF:Gas Gauging:State(82):Qmax Cell 2(4)
DF:Gas Gauging:State(82):Qmax Cell 3(6)
SBS:OperationStatus(0x54)[QEN]
C.10.3.3 Update Status (Offset 12)
It is recommended to use ManufacturerAccess to enable or disable the Impedance Track algorithm and
lifetime data updating.
0x00 = Impedance Track algorithm and lifetime data updating is disabled (default).
0x02 = QMAX and Ra table have been updated.
0x04 = Impedance Track algorithm and lifetime data updating is enabled.
0x05 = Ra table updated and Impedance Track algorithm and lifetime data updating are enabled.
0x06 = QMAX and Ra table have been updated and Impedance Track algorithm and lifetime data
updating is enabled.
0x0e = QMAX has been updated with FC set and qualified OCV in discharge and charge.
Table C-245. Update Status
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
82 State 12
Name
Format
Unit
Update Status
Hex
1
0x00
0x0e
0x00
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Related Variable:
SBS:ManufacturerAccess(0x00):IT Enable(0x0021)
•
C.10.3.4 Cell 0..3 Chg DOD at EOC (Offset 13..19)
This value is the calculated depth of discharge (DOD) for cell 0..3 at the end of charging. It is used for
QMax calculations..
Table C-246. Cell 0..3 Chg dod at EOC
Size in
Bytes
Subclass ID Subclass Name
82 State
Offset
Name
Format
Min Value Max Value Default Value Unit
13
Cell 0 Chg dod at
EOC
Integer
2
0
16,384
0
100% /
16,384
15
17
19
Cell 1 Chg dod at
EOC
Cell 2 Chg dod at
EOC
Cell 3 Chg dod at
EOC
Related Variables:
•
•
DF:Gas Gauging:State(82):Qmax Pack(8)
SBS:OperationStatus(0x54)[QEN]
C.10.3.5 Avg I Last Run (Offset 21)
The bq20z60-R1/bq20z65-R1 calculates and stores the average discharge current from the last discharge
cycle in this value. This value is used by the Impedance Track algorithm for the RemainingCapacity
calculation. It is not recommended to change this value.
Table C-247. Avg I Last Run
Size in Min
Max
Value
Default
Value
Subclass ID Subclass Name Offset
82 State 21
Name
Format
Unit
Bytes
Value
Avg I Last Run
Integer
2
–32,768
32,767
–2000
mA
Related Variables:
•
•
•
DF:Gas Gauging:IT Cfg(80):Load Select(0)
DF:Gas Gauging:IT Cfg(80):Load Mode(1)
SBS:RemainingCapacity(0x00f)
C.10.3.6 Avg P Last Run (Offset 23)
The bq20z60-R1/bq20z65-R1 calculates and stores the average discharge power from the last discharge
cycle in this value. This value is used by the Impedance Track algorithm for the RemainingCapacity
calculation. It is not recommended to change this value.
Table C-248. Avg P Last Run
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name
82 State
Offset
Name
Format
Unit
23
Avg P Last Run
Integer
2
–32,768
32,767
–3022
10 mW
Related Variables:
•
•
•
DF:Gas Gauging:IT Cfg(80):Load Select(0)
DF:Gas Gauging:IT Cfg(80):Load Mode(1)
SBS:RemainingCapacity(0x00f)
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Ra Table
C.10.3.7 Delta Voltage (Offset 25)
The bq20z60-R1/bq20z65-R1 stores the maximum difference of Voltage during short load spikes and
normal loads so the Impedance Track algorithm can calculate the RemainingCapacity for pulsed loads. It
is not recommended to change this value.
Table C-249. Delta Voltage
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
82 State 25
Name
Format
Unit
Delta Voltage
Integer
2
–32,768
32,767
0
mV
Related Variables:
•
•
SBS:Voltage(0x009)
SBS:RemainingCapacity(0x00f)
C.10.3.8 Max Avg I Last Run (Offset 31)
This value is the maximum of the AverageCurrent values from the last discharge cycle. It is used by the
Impedance Track algorithm as an initial value for rate compensation if Load Select 7 is selected, and
Load Mode 0 (current) is selected.
Table C-250. Max Avg I Last Run
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
82 State 31
Name
Format
Unit
Max Avg I Last Run Integer
2
-32,767
32,767
-2000
mA
Related Variables:
•
•
•
DF:Gas Gauging:IT Cfg(80):Load Select(0)
DF:Gas Gauging:IT Cfg(80):Load Mode(1)
SBS:RemainingCapacity(0x00f
C.10.3.9 Max Avg P Last Run (Offset 33)
This value is the maximum average power from the last discharge cycle. it is used by the Impedance
Track algorithm as an initial value for rate compensation if Load Select 7 is selected, and Load Mode 1
(power) is selected.
Table C-251. Max Avg P Last Run
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name Offset
82 State 33
Name
Format
Unit
Max Avg P Last Run Integer
2
-32,767
32,767
-3022
10 mW
Related Variables:
•
•
•
DF:Gas Gauging:IT Cfg(80):Load Select(0)
DF:Gas Gauging:IT Cfg(80):Load Mode(1)
SBS:RemainingCapacity(0x00f
C.11 Ra Table
C.11.1 R_a0 (Subclass 88)
C.11.1.1 Cell0 R_a flag (Offset 0)
This value indicates the validity of the cell impedance table for cell 0. It is recommended not to change this
value.
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High Byte
Low Byte
0x00
0x05
Cell impedance and QMAX updated
0x00
Table not used and QMAX updated
Relaxation mode and QMAX update in 0x55
progress
Table being used
0x55
0xff
Discharge mode and cell impedance
updated
0xff
Table never used, no QMAX or cell
impedance update
Cell impedance never updated
Table C-252. Cell0 R_a flag
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID Subclass Name
Offset
Name
Format
Unit
88
R_a0
0
Cell0 R_a flag
Hex
2
0x0000
0xffff
0xff55
Related Variable:
DF:Ra Table:R_a0(88):Cell0 R_a 0..14(2..30)
•
C.11.1.2 Cell0 R_a 0..14 (Offset 2..30)
The bq20z60-R1/bq20z65-R1 stores and updates the impedance profile for cell 0 in this table.
Table C-253. Cell0 R_a
Size in
Bytes
Min
Value Value
Max
Default
Value
Subclass ID Subclass Name Offset
Name
Format
Unit
2–10
88
R_a0
2
Cell0 R_a 0
Cell0 R_a 1
Cell0 R_a 2
Cell0 R_a 3
Cell0 R_a 4
Cell0 R_a 5
Cell0 R_a 6
Cell0 R_a 7
Cell0 R_a 8
Cell0 R_a 9
Cell0 R_a 10
Cell0 R_a 11
Cell0 R_a 12
Cell0 R_a 13
Cell0 R_a 14
Integer
2
38
41
43
44
42
42
45
48
49
52
56
64
74
128
378
38
41
43
44
42
42
45
48
49
52
56
64
74
128
378
38
41
43
44
42
42
45
48
49
52
56
64
74
128
378
Ω
4
6
8
10
12
14
16
18
20
22
24
26
28
30
Related Variable:
DF:Ra Table:R_a0(88):Cell0 R_a flag(0)
•
C.11.2 R_a1 (Subclass 89)
C.11.2.1 Cell1 R_a flag (Offset 0)
This value indicates the validity of the cell impedance table for cell 1. It is recommended not to change this
value.
High Byte
0x00
Low Byte
Cell impedance and QMAX updated
0x00
Table not used and QMAX updated
Table being used
0x05
Relaxation mode and QMAX update in 0x55
progress
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Ra Table
0x55
Discharge mode and cell impedance
updated
0xff
Table never used, no QMAX or cell
impedance update
0xff
Cell impedance never updated
Table C-254. Cell1 R_a flag
Subclass ID Subclass Name
Offset Name
Cell1 R_a flag
Format Size in Bytes
Min Value Max Value Default Value
0x0000 0xffff 0xff55
Unit
89
R_a1
0
Hex
2
Related Variable:
DF:Ra Table:R_a1(89):Cell1 R_a 0..14(2..30)
•
C.11.2.2 Cell1 R_a 0..14 (Offset 2..30)
The bq20z60-R1/bq20z65-R1 stores and updates the impedance profile for cell 1 in this table.
Table C-255. Cell1 R_a
Size in
Bytes
Min
Value Value
Max
Default
Value
Subclass ID Subclass Name Offset
Name
Format
Unit
2–10
Ω
89
R_a1
2
Cell1 R_a 0
Cell1 R_a 1
Cell1 R_a 2
Cell1 R_a 3
Cell1 R_a 4
Cell1 R_a 5
Cell1 R_a 6
Cell1 R_a 7
Cell1 R_a 8
Cell1 R_a 9
Cell1 R_a 10
Cell1 R_a 11
Cell1 R_a 12
Cell1 R_a 13
Cell1 R_a 14
Signed integer
2
38
41
43
44
42
42
45
48
49
52
56
64
74
128
378
38
41
43
44
42
42
45
48
49
52
56
64
74
128
378
38
41
43
44
42
42
45
48
49
52
56
64
74
128
378
4
6
8
10
12
14
16
18
20
22
24
26
28
30
Related Variable:
DF:Ra Table:R_a1(89):Cell1 R_a flag(0)
•
C.11.3 R_a2 (Subclass 90)
C.11.3.1 Cell2 R_a flag (Offset 0)
This value indicates the validity of the cell impedance table for cell 2. It is recommended not to change this
value.
High Byte
0x00
Low Byte
Tell impedance and QMAX updated
0x00
Table not used and QMAX updated
Table being used
0x05
Relaxation mode and QMAX update in 0x55
progress
0x55
0xff
Discharge mode and cell impedance
updated
0xff
Table never used, no QMAX or cell
impedance update
Cell impedance never updated
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Table C-256. Cell2 R_a flag
Subclass ID
90
Subclass Name
Offset Name
Cell2 R_a flag
Format
Size in Bytes Min Value Max Value
2 0x0000 0xffff
Default Value
0xff55
Unit
R_a2
0
Hex
Related Variable:
DF:Ra Table:R_a2(90):Cell2 R_a 0..14(2..30)
•
C.11.3.2 Cell2 R_a 0..14 (Offset 2..30)
The bq20z60-R1/bq20z65-R1 stores and updates the impedance profile for cell 2 in this table.
Table C-257. Cell2 R_a
Size in
Bytes
Min
Value Value
Max
Default
Value
Subclass ID Subclass Name Offset
Name
Format
Unit
2–10
90
R_a2
2
Cell2 R_a 0
Cell2 R_a 1
Cell2 R_a 2
Cell2 R_a 3
Cell2 R_a 4
Cell2 R_a 5
Cell2 R_a 6
Cell2 R_a 7
Cell2 R_a 8
Cell2 R_a 9
Cell2 R_a 10
Cell2 R_a 11
Cell2 R_a 12
Cell2 R_a 13
Cell2 R_a 14
Signed integer
2
38
41
43
44
42
42
45
48
49
52
56
64
74
128
378
38
41
43
44
42
42
45
48
49
52
56
64
74
128
378
38
41
43
44
42
42
45
48
49
52
56
64
74
128
378
Ω
4
6
8
10
12
14
16
18
20
22
24
26
28
30
Related Variable:
DF:Ra Table:R_a2(90):Cell2 R_a flag(0)
•
C.11.4 R_a3 (Subclass 91)
C.11.4.1 Cell3 R_a flag (Offset 0)
This value indicates the validity of the cell impedance table for cell 3. It is recommended not to change this
value.
High Byte
0x00
Low Byte
Cell impedance and QMAX updated
0x00
Table not used and QMAX updated
Table being used
0x05
Relaxation mode and QMAX update in 0x55
progress
0x55
0xff
Discharge mode and cell impedance
updated
0xff
Table never used, no QMAX or cell
impedance update
Cell impedance never updated
Table C-258. Cell3 R_a flag
Size in
Format
Subclass ID Subclass Name
Offset
Name
Cell3 R_a flag
Min Value Max Value Default Value Unit
Bytes
91
R_a3
0
Hex
2
0x0000
0xffff
0xff55
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Ra Table
Related Variable:
DF:Ra Table:R_a3(91):Cell3 R_a 0..14(2..30)
•
C.11.4.2 Cell3 R_a 0..14 (Offset 2..30)
The bq20z60-R1/bq20z65-R1 stores and updates the impedance profile for cell 3 in this table.
Table C-259. Cell3 R_a
Size in
Bytes
Min
Value Value
Max
Default
Value
Subclass ID Subclass Name Offset
Name
Format
Unit
2–10
Ω
91
R_a3
2
Cell3 R_a 0
Cell3 R_a 1
Cell3 R_a 2
Cell3 R_a 3
Cell3 R_a 4
Cell3 R_a 5
Cell3 R_a 6
Cell3 R_a 7
Cell3 R_a 8
Cell3 R_a 9
Cell3 R_a 10
Cell3 R_a 11
Cell3 R_a 12
Cell3 R_a 13
Cell3 R_a 14
Signed integer
2
38
41
43
44
42
42
45
48
49
52
56
64
74
128
378
38
41
43
44
42
42
45
48
49
52
56
64
74
128
378
38
41
43
44
42
42
45
48
49
52
56
64
74
128
378
4
6
8
10
12
14
16
18
20
22
24
26
28
30
Related Variable:
DF:Ra Table:R_a3(91):Cell3 R_a flag(0)
•
C.11.5 R_a0x (Subclass 92)
C.11.5.1 xCell0 R_a flag (Offset 0)
This value indicates the validity of the cell impedance table for cell 0. It is recommended not to change this
value.
High Byte
0x00
Low Byte
Cell impedance and QMAX updated
0x00
Table not used and QMAX updated
Table being used
0x05
Relaxation mode and QMAX update in 0x55
progress
0x55
0xff
Discharge mode and cell impedance
updated
0xff
Table never used, no QMAX or cell
impedance update
Cell impedance never updated
Table C-260. xCell0 R_a flag
Size in
Bytes
Subclass ID Subclass Name
Offset
Name
xCell0 R_a flag
Format
Min Value Max Value Default Value Unit
0xffff 0xffff 0xffff
92
R_a0x
0
Hex
2
Related Variable:
DF:Ra Table:R_a0x(92):xCell0 R_a 0..14(2..30)
•
C.11.5.2 xCell0 R_a 0..14 (Offset 2..30)
The bq20z60-R1/bq20z65-R1 stores and updates the impedance profile for cell 0 in this table.
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Table C-261. xCell0 R_a
Size in
Bytes
Min
Value Value
Max
Default
Value
Subclass ID Subclass Name Offset
Name
Format
Unit
2–10
Ω
92
R_a0x
2
xCell0 R_a 0
xCell0 R_a 1
xCell0 R_a 2
xCell0 R_a 3
xCell0 R_a 4
xCell0 R_a 5
xCell0 R_a 6
xCell0 R_a 7
xCell0 R_a 8
xCell0 R_a 9
xCell0 R_a 10
xCell0 R_a 11
xCell0 R_a 12
xCell0 R_a 13
xCell0 R_a 14
Signed integer
2
38
41
43
44
42
42
45
48
49
52
56
64
74
128
378
38
41
43
44
42
42
45
48
49
52
56
64
74
128
378
38
41
43
44
42
42
45
48
49
52
56
64
74
128
378
4
6
8
10
12
14
16
18
20
22
24
26
28
30
Related Variable:
DF:Ra Table:R_a0x(92):xCell0 R_a flag(0)
•
C.11.6 R_a1x (Subclass 93)
C.11.6.1 xCell1 R_a flag (Offset 0)
This value indicates the validity of the cell impedance table for cell 1. It is recommended not to change this
value.
High Byte
0x00
Low Byte
Cell impedance and QMAX updated
0x00
Table not used and QMAX updated
Table being used
0x05
Relaxation mode and QMAX update in 0x55
progress
0x55
0xff
Discharge mode and cell impedance
updated
0xff
Table never used, no QMAX or cell
impedance update
Cell impedance never updated
Table C-262. xCell1 R_a flag
Size in
Bytes
Subclass ID Subclass Name
Offset
Name
xCell1 R_a flag
Format
Min Value Max Value Default Value Unit
0xffff 0xffff 0xffff
93
R_a1x
0
Hex
2
Related Variable:
DF:Ra Table:R_a1x(93):xCell1 R_a 0..14(2..30)
•
C.11.6.2 xCell1 R_a 0..14 (Offset 2..30)
The bq20z60-R1/bq20z65-R1 stores and updates the impedance profile for cell 1 in this table.
200
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Ra Table
Table C-263. xCell1 R_a
Size in
Bytes
Min
Value Value
Max
Default
Value
Subclass ID Subclass Name Offset
Name
Format
Unit
2–10
Ω
93
R_a1x
2
xCell1 R_a 0
xCell1 R_a 1
xCell1 R_a 2
xCell1 R_a 3
xCell1 R_a 4
xCell1 R_a 5
xCell1 R_a 6
xCell1 R_a 7
xCell1 R_a 8
xCell1 R_a 9
xCell1 R_a 10
xCell1 R_a 11
xCell1 R_a 12
xCell1 R_a 13
xCell1 R_a 14
Signed integer
2
38
41
43
44
42
42
45
48
49
52
56
64
74
128
378
38
41
43
44
42
42
45
48
49
52
56
64
74
128
378
38
41
43
44
42
42
45
48
49
52
56
64
74
128
378
4
6
8
10
12
14
16
18
20
22
24
26
28
30
Related Variable:
DF:Ra Table:R_a1x(93):xCell1 R_a flag(0)
•
C.11.7 R_a2x (Subclass 94)
C.11.7.1 xCell2 R_a flag (Offset 0)
This value indicates the validity of the cell impedance table for cell 2. It is recommended not to change this
value.
High Byte
0x00
Low Byte
Cell impedance and QMAX updated
0x00
Table not used and QMAX updated
Table being used
0x05
Relaxation mode and QMAX update in 0x55
progress
0x55
0xff
Discharge mode and cell impedance
updated
0xff
Table never used, no QMAX or cell
impedance update
Cell impedance never updated
Table C-264. xCell2 R_a flag
Size in
Bytes
Subclass ID Subclass Name
Offset
Name
xCell2 R_a flag
Format
Min Value Max Value Default Value Unit
0xffff 0xffff 0xffff
94
R_a2x
0
Hex
2
Related Variable:
DF:Ra Table:R_a2x(94):xCell2 R_a 0..14(2..30)
•
C.11.7.2 xCell2 R_a 0..14 (Offset 2..30)
The bq20z60-R1/bq20z65-R1 stores and updates the impedance profile for cell 2 in this table.
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Table C-265. xCell2 R_a
Size in
Bytes
Min
Value Value
Max
Default
Value
Subclass ID Subclass Name Offset
Name
Format
Unit
2–10
Ω
94
R_a2x
2
xCell2 R_a 0
xCell2 R_a 1
xCell2 R_a 2
xCell2 R_a 3
xCell2 R_a 4
xCell2 R_a 5
xCell2 R_a 6
xCell2 R_a 7
xCell2 R_a 8
xCell2 R_a 9
xCell2 R_a 10
xCell2 R_a 11
xCell2 R_a 12
xCell2 R_a 13
xCell2 R_a 14
Signed integer
2
38
41
43
44
42
42
45
48
49
52
56
64
74
128
378
38
41
43
44
42
42
45
48
49
52
56
64
74
128
378
38
41
43
44
42
42
45
48
49
52
56
64
74
128
378
4
6
8
10
12
14
16
18
20
22
24
26
28
30
Related Variable:
DF:Ra Table:R_a2x(94):xCell2 R_a flag(0)
•
C.11.8 R_a3x (Subclass 95)
C.11.8.1 xCell3 R_a flag (Offset 0)
This value indicates the validity of the cell impedance table for cell 3. It is recommended not to change this
value.
High Byte
0x00
Low Byte
Cell impedance and QMAX updated
0x00
Table not used and QMAX updated
Table being used
0x05
Relaxation mode and QMAX update in 0x55
progress
0x55
0xff
Discharge mode and cell impedance
updated
0xff
Table never used, no QMAX or cell
impedance update
Cell impedance never updated
Table C-266. xCell3 R_a flag
Size in
Bytes
Subclass ID Subclass Name
Offset
Name
xCell3 R_a flag
Format
Min Value Max Value Default Value Unit
0xffff 0xffff 0xffff
95
R_a3x
0
Hex
2
Related Variable:
DF:Ra Table:R_a3x(95):xCell3 R_a 0..14(2..30)
•
C.11.8.2 xCell3 R_a 0..14 (Offset 2..30)
The bq20z60-R1/bq20z65-R1 stores and updates the impedance profile for cell 3 in this table.
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PF Status
Table C-267. xCell3 R_a
Size in
Bytes
Min
Value Value
Max
Default
Value
Subclass ID Subclass Name Offset
Name
Format
Unit
2–10
Ω
95
R_a3x
2
xCell3 R_a 0
xCell3 R_a 1
xCell3 R_a 2
xCell3 R_a 3
xCell3 R_a 4
xCell3 R_a 5
xCell3 R_a 6
xCell3 R_a 7
xCell3 R_a 8
xCell3 R_a 9
xCell3 R_a 10
xCell3 R_a 11
xCell3 R_a 12
xCell3 R_a 13
xCell3 R_a 14
Signed integer
2
38
41
43
44
42
42
45
48
49
52
56
64
74
128
378
38
41
43
44
42
42
45
48
49
52
56
64
74
128
378
38
41
43
44
42
42
45
48
49
52
56
64
74
128
378
4
6
8
10
12
14
16
18
20
22
24
26
28
30
Related Variable:
DF:Ra Table:R_a3x(95):xCell3 R_a flag(0)
•
C.12 PF Status
C.12.1 Device Status Data (Subclass 96)
C.12.1.1 Saved PF Flags 1..2 (Offset 0..2)
The flags in the Saved PF Flags 1..2 register indicate the reason that the bq20z60-R1/bq20z65-R1 has
entered permanent failure. If the failure flag in Saved PF Flags 1..2 matches the bit in Permanent Fail
Cfg or Permanent Fail Cfg 2, the SAFE pin is driven high and the Fuse Flag is set to 0x3672. The SAFE
pin can be used to blow an optional fuse in a severe failure condition to prevent more damage to the
system.
All permanent failure flags in the failure sequence are stored in Saved PF Flags 1..2. Only the first
permanent failure flag in a failure sequence is stored in Saved 1st PF Flag 1..2 to indicate the cause of
the permanent failure.
Table C-268. Saved PF Flags 1..2
Size in
Bytes
Subclass ID Subclass Name
Offset
Name
Format
Min Value Max Value Default Value Unit
96
96
Device Status Data
Device Status Data
0
2
Saved PF Flags 1 Hex
Saved PF Flags 2 Hex
2
2
0x0000
0x0000
0xffff
0xffff
0x0000
0x0000
Bit 7
Bit 6
Bit 5
SUV
Bit 4
Bit 3
Bit 2
Bit 1
AFE_P
SOV
Bit 0
ACE_C
PFIN
High Byte
FBF
DFF
PFVSHUT
DFETF
SOPT1
CIM_R
SOCD
SOCC
SOT1C
Low Byte
CFETF
SOT1D
LEGEND: All values read-only
Figure C-13. Saved PF Flags 1
FBF— 1 = Fuse Blow Failure. The fuse has not cut off current even though the SAFE pin output has
been driven high.
PFVSHUT— 1 = Another permanent failure has occurred AND the device went into shutdown after that
event
SUV— 1 = Safety Undervoltage permanent failure
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SOPT1— 1 = Open Thermistor permanent failure
SOCD— 1 = Safety Overcurrent in Discharge permanent failure
SOCC— 1 = Safety Overcurrent in Charge permanent failure
AFE_P— 1 = Periodic AFE-Communications permanent failure
AFE_C— 1 = AFE-Communications permanent failure
DFF— 1 = Data Flash Fault permanent failure
DFETF— 1 = Discharge FET permanent failure
CFETF— 1 = Charge FET permanent failure
CIM_R— 1 = Cell-Imbalance at rest permanent failure
SOT1D— 1 = Discharge Safety Overtemperature on TS1 permanent failure
SOT1C— 1 = Charge Safety Overtemperature on TS1 permanent failure
SOV— 1 = Safety Overvoltage permanent failure
PFIN— 1 = External PFIN Input Indication of a permanent failure
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
RSVD
SOPT2
Bit 2
RSVD
SOT2D
Bit 1
RSVD
SOT2C
Bit 0
High Byte
Low Byte
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
CIM_A
LEGEND: All values read-only
Figure C-14. Saved PF Flags 2
SOPT2— 1 = Open Thermistor on TS2 permanent failure
SOT2D— 1 = Safety over temperature on TS2 during discharge failure
SOT2C— 1 = Safety over temperature on TS2 during charge failure
CIM_A— 1 = Cell imbalance while active permanent failure
Related Variables:
•
•
•
•
•
DF:Configuration:Registers(64):Permanent Fail Cfg 1..2(6..8)
DF:PF Status:Device Status Data(96):Fuse Flag(2)
DF:PF Status:Device Status Data(96):Saved 1st PF Flag 1..2(32..34)
SBS:PFStatus(0x53)
SBS:PFStatus2(0x6b)
C.12.1.2 Fuse Flag (Offset 4)
The Fuse Flag is set to 0x3672 when a 2nd level protection failure occurs and the matching bit is set in
the Permanent Fail Cfg register. The SAFE pin is driven high.
0x0000 = No failure (default)
0x3672 = The Permanent Fail Cfg flag matches the Saved PF Flags 1 flag, and the SAFE pin is
driven low.
Table C-269. Fuse Flag
Size in
Bytes
Subclass ID Subclass Name
Offset
Name
Format
Min Value Max Value Default Value Unit
96
Device Status Data
4
Fuse Flag
Hex
2
0x0000
0xffff
0x0000
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PF Status
Related Variables:
•
•
DF:Configuration:Registers(64):Permanent Fail Cfg(6)
DF:PF Status:Device Status Data(96):Saved PF Flags 1(0)
C.12.1.3 PF Voltage (Offset 6)
When a permanent failure is detected, Voltage is captured and stored in PF Voltage.
Table C-270. PF Voltage
Size in
Bytes
Subclass ID Subclass Name
Offset
Name
Format
Min Value Max Value Default Value Unit
32,767 mV
96
Device Status
Data
6
PF Voltage
Integer
2
0
0
Related Variable:
SBS:Voltage(0x009)
•
C.12.1.4 PF C4 Voltage (Offset 8)
When a permanent failure is detected, CellVoltage4 is captured and stored in PF C4 Voltage.
Table C-271. PF C4 Voltage
Size in
Bytes
Subclass ID Subclass Name
96 Device Status Data
Offset
Name
Format
Min Value Max Value Default Value Unit
9999 mV
8
PF C4 Voltage
Integer
2
0
0
Related Variable:
SBS:CellVoltage4(0x3c)
•
C.12.1.5 PF C3 Voltage (Offset 10)
When a permanent failure is detected, CellVoltage3 is captured and stored in PF C3 Voltage.
Table C-272. PF C3 Voltage
Size in
Bytes
Subclass ID Subclass Name
96 Device Status Data
Offset
Name
Format
Min Value Max Value Default Value Unit
9999 mV
10
PF C3 Voltage
Integer
2
0
0
Related Variable:
SBS:CellVoltage3(0x3d)
•
C.12.1.6 PF C2 Voltage (Offset 12)
When a permanent failure is detected, CellVoltage2 is captured and stored in PF C2 Voltage.
Table C-273. PF C2 Voltage
Size in
Bytes
Subclass ID Subclass Name
96 Device Status Data
Offset
Name
Format
Min Value Max Value Default Value Unit
9999 mV
12
PF C2 Voltage
Integer
2
0
0
Related Variable:
SBS:CellVoltage2(0x3e)
•
C.12.1.7 PF C1 Voltage (Offset 14)
When a permanent failure is detected, CellVoltage1 is captured and stored in PF C1 Voltage.
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Table C-274. PF C1 Voltage
Size in
Subclass ID Subclass Name
Offset
Name
Format
Bytes
Min Value Max Value Default Value Unit
9999 mV
96 Device Status Data 14
PF C1 Voltage Integer
2
0
0
Related Variable:
SBS:CellVoltage1(0x3f)
•
C.12.1.8 PF Current (Offset 16)
When a permanent failure is detected, the pack Current is captured and stored in PF Current.
Table C-275. PF Current
Size in
Bytes
Subclass ID Subclass Name
Offset
Name
Format
Min Value Max Value Default Value Unit
–32,768 32,767 mA
96
Device Status
Data
16
PF Current
Integer
2
0
Related Variable:
SBS:Current(0x00a)
•
C.12.1.9 PF Temperature (Offset 18)
When a permanent failure is detected, the pack Temperature is captured and stored in PF Temperature.
Table C-276. PF Temperature
Size in
Bytes
Subclass ID Subclass Name
96 Device Status Data
Offset
Name
Format
Min Value Max Value Default Value Unit
–9999 9999 0.1 K
18
PF Temperature
Integer
2
0
Related Variable:
SBS:Temperature(0x008)
•
C.12.1.10 PF Batt Stat (Offset 20)
When a permanent failure is detected, the BatteryStatus flags are captured and stored in PF Batt Stat.
Table C-277. PF Batt Stat
Size in
Bytes
Subclass ID Subclass Name
96 Device Status Data
Offset
Name
Format
Min Value Max Value Default Value Unit
0x0000 0xffff 0x0000
20
PF Batt Stat Hex
2
Related Variable:
SBS:BatteryStatus(0x16)
•
C.12.1.11 PF RC-mAh (Offset 22)
When a permanent failure is detected, RemainingCapacity, in mAh, is captured and stored in PF
RC-mAh.
Table C-278. PF RC-mAh
Size in
Bytes
Subclass ID Subclass Name
Offset
Name
Format
Min Value Max Value Default Value Unit
32,767 mAh
96
Device Status Data 22
PF RC-mAh
Integer
2
0
0
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PF Status
Related Variables:
•
•
SBS:BatteryMode(0x003)[CapM]
SBS:RemainingCapacity(0x00f)
C.12.1.12 PF RC-10mWh (Offset 24)
When a permanent failure is detected, RemainingCapacity, in 10 mWh, is captured and stored in PF-RC
10mWh.
Table C-279. PF RC-10mWh
Size in
Bytes
Subclass ID Subclass Name
Offset
Name
Format
Min Value Max Value Default Value Unit
32,767 10 mWh
96
Device Status Data 24
PF
Integer
2
0
0
RC-10mWh
Related Variables:
•
•
SBS:BatteryMode(0x003)[CapM]
SBS:RemainingCapacity(0x00f)
C.12.1.13 PF Chg Status (Offset 26)
When a permanent failure is detected, the ChargingStatus flags are captured and stored in PF Chg
Status.
Table C-280. PF Chg Status
Size in
Bytes
Subclass ID Subclass Name
Offset
Name
Format
Min Value Max Value Default Value Unit
0x0000 0xffff 0x0000
96
Device Status Data 26
PF Chg Status
Hex
2
Related Variable:
•
SBS:ChargingStatus(0x55)
C.12.1.14 PF Safety Status 1..2 (Offset 28..30)
When a permanent failure is detected, the SafetyStatus and SafetyStatus2 flags are captured and stored
in PF Safety Status 1 and PF Safety Status 2.
Table C-281. PF Safety Status 1..2
Size in
Bytes
Subclass ID Subclass Name
Offset
Name
Format
Min Value Max Value Default Value Unit
96
96
Device Status Data 28
Device Status Data 30
PF Safety Status 1 Hex
PF Safety Status 2 Hex
2
2
0x0000
0x0000
0xffff
0xffff
0x0000
0x0000
Related Variable:
•
•
SBS:SafetyStatus(0x51)
SBS:SafetyStatus2(0x69)
C.12.1.15 Saved 1st PF Flag 1..2 (Offset 32..34)
On the first occurrence of a permanent failure, when PFStatus or PFStatus2 changes from 0x0000, the
PFStatus and PFStatus2 flags are captured and stored in this value. Only the first permanent failure flag in
a failure sequence is stored in Saved 1st PF Flag 1..2, to indicate the cause of the permanent failure. All
permanent failure flags in the failure sequence are stored in Saved PF Flags 1..2.
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Table C-282. Saved 1st PF Flag
Size in
Bytes
Subclass ID Subclass Name
Offset
Device Status Data 32
Device Status Data 34
Name
Format
Min Value Max Value Default Value Unit
96
96
Saved 1st PF Flag Hex
1
2
0x0000
0x0000
0xffff
0xffff
0x0000
0x0000
Saved 1st PF Flag Hex
2
2
Related Variables:
•
•
•
DF:PF Status:Device Status Data(96):Saved PF Flags 1..2(0..2)
SBS:PFStatus(0x53)
SBS:PFStatus2(0x6b)
C.12.2 AFE Regs (Subclass 97)
When the bq20z60-R1/bq20z65-R1 detects a permanent failure, a complete copy of the AFE register
values is stored in AFE Regs.
Table C-283. AFE Regs
Size in
Bytes
Subclass ID Subclass Name
97 AFE Regs
Offset
Name
Format
Min Value Max Value Default Value Unit
0x00 0xff 0x00
0
1
2
3
4
5
6
7
8
AFE Status
AFE Output
AFE State
AFE Function
AFE Cell Select
AFE OLV
Hex
1
AFE OLT
AFE SCC
AFE SCD
C.13 Calibration
C.13.1 Data (Subclass 104)
C.13.1.1 CC Gain (Offset 0)
CC Gain sets the mA current scale factor for the coulomb counter. Use calibration routines to set this
value.
Table C-284. CC Gain
Subclass
Name
Subclass ID
Offset
Name
Format
Size in Bytes Min Value Max Value Default Value Unit
0.1 0.9419
104
Data
0
CC Gain
Floating
point
4
4
Related Variable:
SBS:Current(0x00a)
•
C.13.1.2 CC Delta (Offset 4)
CC Delta sets the mAh capacity scale factor for the coulomb counter. Use calibration routines to set this
value.
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Table C-285. CC Delta
Size in
Format
Subclass ID Subclass Name
104 Data
Offset
Name
Min Value Max Value Default Value Unit
Bytes
4
CC Delta
Floating point
4
29,826
1,193,046
280,932.6
Related Variables:
•
•
SBS:RemainingCapacity(0x00f)
SBS:FullChargeCapacity(0x10)
C.13.1.3 Ref Voltage (Offset 8)
This register value stores the AFE reference voltage in units of 50 μV.
Table C-286. Ref Voltage
Min
Value
Subclass ID Subclass Name Offset
104 Data
Name
Format
Size in Bytes
Max Value
Default Value Unit
8
Ref Voltage
Integer
2
0
32,767
24,500
C.13.1.4 AFE Pack Gain (Offset 12)
This register value stores the scale factor for the voltage at the PACK pin.
Table C-287. AFE Pack Gain
Subclass ID Subclass Name Offset
104 Data 12
Name
Format
Size in Bytes
Min Value Max Value Default Value Unit
0 32,767 22,050
AFE Pack
Gain
Integer
2
C.13.1.5 CC Offset (Offset 14)
This register value stores the coulomb counter offset compensation. It is set by automatic calibration of the
bq20z60-R1/bq20z65-R1. It is not recommended to change this value.
Table C-288. CC Offset
Size in
Bytes
Subclass ID Subclass Name
104 Data
Offset
Name
Format
Min Value Max Value Default Value Unit
–32,768 32,767 –1667
14
CC Offset
Integer
2
C.13.1.6 Board Offset (Offset 16)
This register value stores the compensation for the PCB-dependent coulomb-counter offset. It is
recommended to use characterization data of the actual PCB to set this value.
Table C-289. Board Offset
Size in
Bytes
Subclass ID Subclass Name
104 Data
Offset
Name
Format
Min Value Max Value Default Value Unit
–32,767 32,767
16
Board Offset Integer
2
0
Related Variable:
Calibration:Data(104):CC Offset(14)
•
C.13.1.7 Int Temp Offset (Offset 18)
This register value stores the internal temperature sensor offset compensation. Use calibration routines to
set this value.
209
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Table C-290. Int Temp Offset
Size in
Format
Subclass ID Subclass Name
104 Data
Offset Name
Min Value Max Value Default Value Unit
–128 127
Bytes
18
Int Temp Offset Integer
1
0
Related Variables:
•
•
DF:Configuration:Registers(64):Operation Cfg A(0)[TEMP1], [TEMP0]
SBS:Temperature(0x008)
C.13.1.8 Ext1 Temp Offset (Offset 19)
This register value stores the temperature sensor offset compensation for external temperature sensor 1,
connected at the TS1 pin of the bq20z60-R1/bq20z65-R1. Use calibration routines to set this value.
Table C-291. Ext1 Temp Offset
Size in
Bytes
Subclass ID Subclass Name Offset
104 Data 19
Name
Format
Min Value Max Value Default Value Unit
–128 127
Ext1 Temp Offset Signed integer
1
0
Related Variables:
•
•
DF:Configuration:Registers(64):Operation Cfg A(0)[TEMP1], [TEMP0]
SBS:Temperature(0x008)
C.13.1.9 Ext2 Temp Offset (Offset 20)
This register value stores the temperature sensor offset compensation for external temperature sensor 2,
connected at the TS2 pin of the bq20z60-R1/bq20z65-R1. Use calibration routines to set this value.
Table C-292. Ext2 Temp Offset
Size in
Bytes
Min
Value
Subclass ID Subclass Name Offset
104 Data 20
Name
Format
Max Value Default Value
127
Unit
Ext2 Temp Offset
Integer
1
–128
0
-
Related Variables:
•
•
DF:Configuration:Registers(64):Operation Cfg A(0)[TEMP1], [TEMP0]
SBS:Temperature(0x008)
C.13.2 Config (Subclass 105)
C.13.2.1 CC Current (Offset 0)
This value sets the current used for the CC calibration when in calibration mode.
Table C-293. CC Current
Size in
Bytes
Subclass ID Subclass Name
105 Config
Offset
Name
Format
Min Value Max Value Default Value Unit
0 32,767 3000 mA
0
CC Current
Integer
2
Related Variable:
SBS:Current(0x00a)
•
C.13.2.2 Voltage Signal (Offset 2)
This value sets the voltage used for calibration when in calibration mode.
210
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Table C-294. Voltage Signal
Subclass
ID
Size in
Min
Value
Subclass Name Offset Name
Config Voltage Signal
Format
Bytes
Max Value
Default Value
16,800
Unit
105
2
Integer
2
0
32,767
Related Variable:
SBS:Voltage(0x009)
•
C.13.2.3 Temp Signal (Offset 4)
This value sets the temperature used for the temperature calibration in calibration mode
Table C-295. Temp Signal
Size in
Bytes
Subclass ID Subclass Name
105 Config
Offset
Name
Format
Min Value Max Value Default Value Unit
0 32,767 2980
4
Temp Signal
Integer
2
Related Variable:
SBS:Temperature(0x008)
•
C.13.2.4 CC Offset Time (Offset 6)
This value sets the time used for the CC Offset calibration in calibration mode. More time means more
accuracy. The legitimate values for this constant are integer multiples of 250. Numbers less than 250
cause a CC offset calibration error. Numbers greater than 250 are rounded down to the nearest multiple of
250.
Table C-296. CC Offset Time
Subclass ID Subclass Name Offset Name
Format
Size in Bytes Min Value Max Value Default Value Unit
65,535 250
105
Config
6
CC Offset
Time
Unsigned
integer
2
0
Related Variable:
Calibration:Data(104):CC Offset(14)
•
C.13.2.5 ADC Offset Time (Offset 8)
This constant defines the time for the ADC Offset calibration in calibration mode. More time means more
accuracy. The legitimate values for this constant are integer multiples of 32. Numbers less than 32 cause
an ADC offset calibration error. Numbers greater than 32 are rounded down to the nearest multiple of 32.
Table C-297. ADC Offset Time
Size in
Bytes
Subclass ID Subclass Name
105 Config
Offset
Name
Format
Min Value Max Value Default Value Unit
0 65,535 32
8
ADC Offset Time
Unsigned
integer
2
C.13.2.6 CC Gain Time (Offset 10)
This constant defines the time for the CC gain calibration in calibration mode. More time means more
accuracy. The legitimate values for this constant are integer multiples of 250. Numbers less than 250
cause a CC gain calibration error. Numbers greater than 250 are rounded down to the nearest multiple of
250.
Table C-298. CC Gain Time
Size in
Bytes
Subclass ID Subclass Name
105 Config
Offset
Name
Format
Min Value Max Value Default Value Unit
0 65,535 250
10
CC Gain Time
Unsigned
integer
2
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Related Variable:
Calibration:Data(104):CC Gain(0)
•
C.13.2.7 Voltage Time (Offset 12)
This constant defines the time for the voltage calibration in calibration mode. More time means more
accuracy. The legitimate values for this constant are integer multiples of 1984. Numbers less than 1984
cause a voltage calibration error. Numbers greater than 1984 are rounded down to the nearest multiple of
1984.
Table C-299. Voltage Time
Size in
Bytes
Subclass ID Subclass Name
105 Config
Offset
Name
Format
Min Value Max Value Default Value Unit
0 65,535 1984
12
Voltage Time
Unsigned
integer
2
Related Variable:
SBS:Voltage(0x009)
•
C.13.2.8 Temperature Time (Offset 14)
This constant defines the time for the temperature calibration in calibration mode. More time means more
accuracy. The legitimate values for this constant are integer multiples of 32. Numbers less than 32 cause
a temperature calibration error. Numbers greater than 32 are rounded down to the nearest multiple of 32.
Table C-300. Temperature Time
Size in
Bytes
Subclass ID Subclass Name
105 Config
Offset
Name
Format
Min Value Max Value Default Value Unit
0 65,535 32
14
Temperature Time Unsigned
integer
2
Related Variables:
•
•
•
•
Calibration:Data(104):Int Temp Offset(18)
Calibration:Data(104):Ext1 Temp Offset(19)
Calibration:Data(104):Ext2 Temp Offset(20)
SBS:Temperature(0x008)
C.13.2.9 Cal Mode Timeout (Offset 17)
The bq20z60-R1/bq20z65-R1 exits calibration mode automatically after a Cal Mode Timeout period.
Table C-301. Cal Mode Timeout
Size in
Bytes
Subclass ID Subclass Name
105 Config
Offset
Name
Format
Min Value Max Value Default Value Unit
65,535 38,400
17
Cal Mode Timeout Unsigned
integer
2
0
-
Related Variable:
SBS:ManufacturerAccess(0x00):Calibration Mode(0x0040)
•
C.13.3 Temp Model (Subclass 106)
C.13.3.1 Ext Coef 1..4, Ext Min AD, Ext Max Temp (Offset 0..10)
These values characterize the external thermistor connected to the TS1 pin or the TS2 pin of the
bq20z60-R1/bq20z65-R1. The default values characterize the Semitec 103AT NTC thermistor. Do not
modify these values without consulting TI.
212
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Table C-302. Ext Coef 1..4, Ext Min AD, Ext Max Temp
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID
106
Subclass Name
Offset Name
Format
Unit
Temp Model
0
Ext Coef 1
Integer
2
–32,768 32,767
–28,285
20,848
–7537
4012
0
2
Ext Coef 2
Ext Coef 3
Ext Coef 4
Ext Min AD
Ext Max Temp
4
6
8
10
4012
C.13.3.2 Int Coef 1..4, Int Min AD, Int Max Temp (Offset 12..22)
These values characterize the internal thermistor of the bq20z60-R1/bq20z65-R1. Do not modify these
values without consulting TI.
Table C-303. Int Coef 1..4, Int Min AD, Int Max Temp
Size in
Bytes
Min
Value
Max
Value
Default
Value
Subclass ID
Subclass Name
Offset Name
Format
Unit
106
Temp Model
12
14
16
18
20
22
Int Coef 1
Integer
2
–32,768 32,767
0
Int Coef 2
Int Coef 3
Int Coef 4
Int Min AD
Int Max Temp
0
–11,136
5754
0
5754
C.13.4 Current (Subclass 107)
C.13.4.1 Filter (Offset 0)
Filter defines the filter constant used in the AverageCurrent calculation:
AverageCurrent new = a × AverageCurrent old + (1 – a) × Current
with:
a = <Filter> / 256; the time constant = 1 s/ln(1/a) (default 14.5 s)
Table C-304. Filter
Size in
Bytes
Subclass ID Subclass Name
107 Current
Offset
Name
Format
Min Value Max Value Default Value Unit
0 255 239 mA
0
Filter
Unsigned
integer
1
Related Variables:
•
•
SBS:Current(0x00a)
SBS:AverageCurrent(0x00b)
C.13.4.2 Deadband (Offset 1)
Any current within ± Deadband is reported as 0 mA by the Current function.
Table C-305. Deadband
Size in
Bytes
Subclass ID Subclass Name
107 Current
Offset
Name
Format
Min Value Max Value Default Value Unit
1
Deadband
Unsigned
integer
1
0
255
3
mA
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Related Variable:
SBS:Current(0x00a)
•
C.13.4.3 CC Deadband (Offset 2)
This constant defines the deadband voltage for the measured voltage between the SR1 and SR2 pins
used for capacity accumulation in units of 294 nV. Any voltages within ±CC Deadband do not contribute
to capacity accumulation.
Table C-306. CC Deadband
Size in
Bytes
Subclass ID Subclass Name
107 Current
Offset
Name
Format
Min Value Max Value Default Value Unit
0 255 34 294 nV
2
CC Deadband
Unsigned
integer
1
Related Variable:
SBS:RemainingCapacity(0x00f)
•
C.14 Data Flash Values
Table C-307. DATA FLASH VALUES
Class
Subclass Subclass
ID
Offset Name
Data
Type
Min Value Max
Value
Default Value Units
(EVSW
Units)*
1st Level
Safety
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
Voltage
Voltage
Voltage
Voltage
Voltage
Voltage
Voltage
Voltage
Voltage
Voltage
Current
Current
Current
Current
Current
Current
Current
Current
Current
0
LT COV Threshold
I2
3700
5000
4300
4100
4500
4300
4200
4000
2
mV
mV
mV
mV
mV
mV
s
1st Level
Safety
2
LT COV Recovery
ST COV Threshold
ST COV Recovery
HT COV Threshold
HT COV Recovery
COV Time
I2
0
4400
5000
4400
5000
4400
240
1st Level
Safety
4
I2
3700
1st Level
Safety
6
I2
0
1st Level
Safety
8
I2
3700
1st Level
Safety
10
12
13
15
16
0
I2
0
1st Level
Safety
U1
I2
0
1st Level
Safety
CUV Threshold
0
3500
240
2200
2
mV
s
1st Level
Safety
CUV Time
U1
I2
0
1st Level
Safety
CUV Recovery
0
3600
20000
240
3000
6000
2
mV
mA
mA (s)
mA
mA
mA (s)
mA
mA
s
1st Level
Safety
OC (1st Tier) Chg
OC (1st Tier) Chg Time
OC Chg Recovery
OC (1st Tier) Dsg
OC (1st Tier) Dsg Time
OC Dsg Recovery
OC (2nd Tier) Chg
OC (2nd Tier) Chg Time
OC (2nd Tier) Dsg
I2
0
1st Level
Safety
2
U1
I2
0
1st Level
Safety
3
-1000
1000
20000
240
200
6000
2
1st Level
Safety
5
I2
0
0
0
0
0
0
1st Level
Safety
7
U1
I2
1st Level
Safety
8
1000
20000
240
200
8000
2
1st Level
Safety
10
12
13
I2
1st Level
Safety
U1
I2
1st Level
Safety
22000
8000
mA
214
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Data Flash Values
Table C-307. DATA FLASH VALUES (continued)
Class
Subclass Subclass
ID
Offset Name
Data
Type
Min Value Max
Value
Default Value Units
(EVSW
Units)*
1st Level
Safety
1
Current
15
16
17
18
19
21
22
23
0
OC (2nd Tier) Dsg Time
U1
U1
H1
H1
I2
0
240
2
s
1st Level
Safety
1
Current
Current Recovery Time
AFE OC Dsg
0
240
8
s
1st Level
Safety
1
Current
0x0
0x0
5
0xff
0x12
0xf
5
-
1st Level
Safety
1
Current
AFE OC Dsg Time
AFE OC Dsg Recovery
AFE SC Chg Cfg
AFE SC Dsg Cfg
AFE SC Recovery
OT1 Chg Threshold
OT1 Chg Time
0xff
-
1st Level
Safety
1
Current
1000
0xff
mA
1st Level
Safety
1
Current
H1
H1
I2
0x0
0x0
0
0x77
0x77
1
-
1st Level
Safety
1
Current
0xff
-
1st Level
Safety
1
Current
200
mA
1st Level
Safety
2
Temperature
Temperature
Temperature
Temperature
Temperature
Temperature
Temperature
Temperature
Temperature
Temperature
Temperature
Temperature
Temperature
Host Comm
Voltage
I2
0
2550
240
550
2
0.1°C (°C)
1st Level
Safety
2
2
U1
I2
0
s
1st Level
Safety
2
3
OT1 Chg Recovery
OT2 Chg Threshold
OT2 Chg Time
0
2550
2550
240
500
550
2
0.1°C (°C)
1st Level
Safety
2
5
I2
0
0.1°C (°C)
1st Level
Safety
2
7
U1
I2
0
s
1st Level
Safety
2
8
OT2 Chg Recovery
OT1 Dsg Threshold
OT1 Dsg Time
0
2550
2550
240
500
600
2
0.1°C (°C)
1st Level
Safety
2
10
12
13
15
17
18
20
0
I2
0
0.1°C (°C)
1st Level
Safety
2
U1
I2
0
s
1st Level
Safety
2
OT1 Dsg Recovery
OT2 Dsg Threshold
OT2 Dsg Time
0
2550
2550
240
550
600
2
0.1°C (°C)
1st Level
Safety
2
I2
0
0.1°C (°C)
1st Level
Safety
2
U1
I2
0
s
1st Level
Safety
2
OT2 Dsg Recovery
Hi Dsg Start Temp
Host Watchdog Timeout
LT SOV Threshold
ST SOV Threshold
HT SOV Threshold
SOV Time
0
2550
1200
255
550
600
0
0.1°C (°C)
1st Level
Safety
2
I2
0
0.1°C (°C)
1st Level
Safety
4
U1
I2
0
s
2nd Level
Safety
16
16
16
16
16
16
16
16
0
0
20000
20000
20000
240
4400
4600
4500
0
mV
mV
mV
s
2nd Level
Safety
Voltage
2
I2
0
2nd Level
Safety
Voltage
4
I2
0
2nd Level
Safety
Voltage
6
U1
U2
I2
0
2nd Level
Safety
Voltage
7
PF SOV Fuse Blow Delay
SUV Threshold
0
65535
20000
240
0
s
2nd Level
Safety
Voltage
9
0
2000
0
mV
s
2nd Level
Safety
Voltage
11
12
SUV Time
U1
U1
0
2nd Level
Safety
Voltage
Rest CIM Current
0
200
5
mA
215
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Table C-307. DATA FLASH VALUES (continued)
Class
Subclass Subclass
ID
Offset Name
Data
Type
Min Value Max
Value
Default Value Units
(EVSW
Units)*
2nd Level
Safety
16
16
16
16
16
16
16
16
16
17
17
17
17
18
18
18
18
18
18
18
18
18
18
19
19
20
20
20
20
20
Voltage
13
15
16
18
20
22
23
25
26
0
Rest CIM Fail Voltage
I2
0
5000
1000
0
mV
2nd Level
Safety
Voltage
Rest CIM Time
U1
U2
U2
I2
0
240
s
2nd Level
Safety
Voltage
CIM Battery Rest Time
Rest CIM Check Voltage
Active CIM Fail Voltage
Active CIM Time
Active CIM Check Voltage
PFIN Detect Time
PF Min Fuse Blow Voltage
SOC Chg
0
65535
65535
5000
240
1800
3000
1000
0
s
2nd Level
Safety
Voltage
0
mV
2nd Level
Safety
Voltage
0
mV
2nd Level
Safety
Voltage
U1
I2
0
s
2nd Level
Safety
Voltage
0
32768
240
3000
0
mV
2nd Level
Safety
Voltage
U1
I2
0
s
2nd Level
Safety
Voltage
0
20000
30000
240
8000
10000
0
mV
2nd Level
Safety
Current
I2
0
mA
2nd Level
Safety
Current
2
SOC Chg Time
U1
I2
0
s
2nd Level
Safety
Current
3
SOC Dsg
0
30000
240
10000
0
mA
2nd Level
Safety
Current
5
SOC Dsg Time
U1
I2
0
s
2nd Level
Safety
Temperature
Temperature
Temperature
Temperature
Temperature
Temperature
Temperature
Temperature
Temperature
Temperature
FET Verification
FET Verification
AFE Verification
AFE Verification
AFE Verification
AFE Verification
AFE Verification
0
SOT1 Chg Threshold
SOT1 Chg Time
SOT2 Chg Threshold
SOT2 Chg Time
SOT1 Dsg Threshold
SOT1 Dsg Time
0
2550
240
650
0
0.1°C (°C)
2nd Level
Safety
2
U1
I2
0
s
2nd Level
Safety
3
0
2550
240
650
0
0.1°C (°C)
2nd Level
Safety
5
U1
I2
0
s
2nd Level
Safety
6
0
2550
240
750
0
0.1°C (°C)
2nd Level
Safety
8
U1
I2
0
s
2nd Level
Safety
9
SOT2 Dsg Threshold
SOT2 Dsg Time
0
2550
240
750
0
0.1°C (°C)
2nd Level
Safety
11
12
14
0
U1
I2
0
s
2nd Level
Safety
Open Thermistor
Open Time
-1000
0
1200
240
-333
0
0.1°C (°C)
2nd Level
Safety
I1
s
2nd Level
Safety
FET Fail Limit
I2
0
500
20
mA
s
2nd Level
Safety
2
FET Fail Time
U1
U1
U1
U1
U1
U1
0
240
0
2nd Level
Safety
0
AFE Check Time
AFE Fail Limit
0
255
0
s
2nd Level
Safety
1
0
255
0
-
2nd Level
Safety
2
AFE Fail Recovery Time
AFE Init Retry Limit
AFE Init Limit
0
255
20
s
2nd Level
Safety
3
0
255
6
-
2nd Level
Safety
4
0
255
20
-
216
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Data Flash Values
Table C-307. DATA FLASH VALUES (continued)
Class
Subclass Subclass
ID
Offset Name
Data
Type
Min Value Max
Value
Default Value Units
(EVSW
Units)*
2nd Level
Safety
21
21
32
32
32
32
32
32
33
33
33
34
34
34
34
34
34
34
34
34
34
34
34
34
34
34
34
34
34
34
Fuse Verification
0
Fuse Fail Limit
I2
U1
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
0
20
2
mA
2nd Level
Safety
Fuse Verification
Charge Temp Cfg
Charge Temp Cfg
Charge Temp Cfg
Charge Temp Cfg
Charge Temp Cfg
Charge Temp Cfg
Pre-Charge Cfg
Pre-Charge Cfg
Pre-Charge Cfg
Charge Cfg
2
Fuse Fail Time
JT1
0
240
0
s
Charge
Control
0
-400
1200
0
0.1°C (°C)
0.1°C (°C)
0.1°C (°C)
0.1°C (°C)
0.1°C (°C)
0.1°C (°C)
mV
Charge
Control
2
JT2
-400
1200
120
Charge
Control
4
JT2a
-400
-400
-400
0
1200
300
Charge
Control
6
JT3
1200
450
Charge
Control
8
JT4
1200
550
Charge
Control
10
0
Temp Hys
100
10
Charge
Control
Pre-chg Voltage Threshold
Pre-chg Recovery Voltage
Pre-chg Current
LT Chg Voltage
LT Chg Current1
LT Chg Current2
LT Chg Current3
ST1 Chg Voltage
ST1 Chg Current1
ST1 Chg Current2
ST1 Chg Current3
ST2 Chg Voltage
ST2 Chg Current1
ST2 Chg Current2
ST2 Chg Current3
HT Chg Voltage
HT Chg Current1
HT Chg Current2
HT Chg Current3
Cell Voltage Threshold1
Cell Voltage Threshold2
Cell Voltage Thresh Hys
0
20000
20000
2000
3000
3100
250
Charge
Control
2
0
mV
Charge
Control
4
0
mA
Charge
Control
0
0
20000
20000
20000
20000
20000
20000
20000
20000
20000
20000
20000
20000
20000
20000
20000
20000
5000
12000
250
mV
Charge
Control
Charge Cfg
2
0
mA
Charge
Control
Charge Cfg
4
0
250
mA
Charge
Control
Charge Cfg
6
0
250
mA
Charge
Control
Charge Cfg
8
0
16800
4000
4000
4000
16800
4000
4000
4000
16760
3800
3800
3800
3900
4000
10
mV
Charge
Control
Charge Cfg
10
12
14
16
18
20
22
24
26
28
30
32
34
36
0
mA
Charge
Control
Charge Cfg
0
mA
Charge
Control
Charge Cfg
0
mA
Charge
Control
Charge Cfg
0
mV
Charge
Control
Charge Cfg
0
mA
Charge
Control
Charge Cfg
0
mA
Charge
Control
Charge Cfg
0
mA
Charge
Control
Charge Cfg
0
mV
Charge
Control
Charge Cfg
0
mA
Charge
Control
Charge Cfg
0
mA
Charge
Control
Charge Cfg
0
mA
Charge
Control
Charge Cfg
0
mV
Charge
Control
Charge Cfg
0
5000
mV
Charge
Control
Charge Cfg
0
1000
mV
217
SLUU386–January 2010
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Data Flash Values
www.ti.com
Table C-307. DATA FLASH VALUES (continued)
Class
Subclass Subclass
ID
Offset Name
Data
Type
Min Value Max
Value
Default Value Units
(EVSW
Units)*
Charge
Control
36
36
36
36
36
36
36
36
37
38
38
38
38
38
38
38
38
38
38
38
38
38
48
48
48
48
48
48
48
Termination Cfg.
Termination Cfg.
Termination Cfg.
Termination Cfg.
Termination Cfg.
Termination Cfg.
Termination Cfg.
Termination Cfg.
Cell Balancing Cfg
Charging Faults
Charging Faults
Charging Faults
Charging Faults
Charging Faults
Charging Faults
Charging Faults
Charging Faults
Charging Faults
Charging Faults
Charging Faults
Charging Faults
Charging Faults
Data
0
Maintenance Current
I2
0
1000
0
mA
mA
mV
s
Charge
Control
2
Taper Current
I2
0
1000
1000
240
250
75
Charge
Control
6
Taper Voltage
I2
0
Charge
Control
8
Current Taper Window
TCA Set %
U1
I1
0
40
Charge
Control
9
-1
-1
-1
-1
0
100
-1
%
Charge
Control
10
11
12
0
TCA Clear %
I1
100
95
%
Charge
Control
FC Set %
I1
100
-1
%
Charge
Control
FC Clear %
I1
100
98
%
Charge
Control
Min Cell Deviation
Over Charging Voltage
Over Charging Volt Time
Over Charging Current
Over Charging Curr Time
Over Charging Curr Recov
Depleted Voltage
Depleted Voltage Time
Depleted Recovery
Over Charge Capacity
Over Charge Recovery
CMTO
U2
I2
65535
3000
240
1350
500
2
s/mAh
mV
s
Charge
Control
0
0
Charge
Control
2
U1
I2
0
Charge
Control
3
0
2000
240
500
2
mA
s
Charge
Control
5
U1
I2
0
Charge
Control
6
0
2000
16000
240
100
8000
2
mA
mV
s
Charge
Control
8
I2
0
Charge
Control
10
11
13
15
17
19
21
0
U1
I2
0
Charge
Control
0
16000
4000
100
8500
300
2
mV
mAh
mAh
s
Charge
Control
I2
0
Charge
Control
I2
0
Charge
Control
U2
U2
H1
I2
0
65535
65535
0xffff
700
10800
3600
0x0
300
432
10
Charge
Control
PCMTO
0
s
Charge
Control
Charge Fault Cfg
Rem Cap Alarm
Rem Energy Alarm
Rem Time Alarm
Init Battery Mode
Design Voltage
0x0
0
-
SBS
Configuration
mAh
mWh
min
-
SBS
Configuration
Data
2
I2
0
1000
30
SBS
Configuration
Data
4
U2
H2
I2
0
SBS
Configuration
Data
6
0x0
7000
0x0
0
0xffff
18000
0xffff
65535
0x81
14400
0x31
0
SBS
Configuration
Data
8
mV
-
SBS
Configuration
Data
10
12
Spec Info
H2
U2
SBS
Data
Manuf Date
Day +
Configuration
Mo*32 + (Yr
-1980)*256
(date)
218
Data Flash
SLUU386–January 2010
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Data Flash Values
Table C-307. DATA FLASH VALUES (continued)
Class
Subclass Subclass
ID
Offset Name
Data
Type
Min Value Max
Value
Default Value Units
(EVSW
Units)*
SBS
Configuration
48
48
48
48
48
48
48
48
48
48
48
48
48
49
49
49
49
49
49
49
49
49
49
Data
14
16
18
20
21
22
24
26
47
68
73
74
75
0
Ser. Num.
H2
U2
I2
0x0000
0xffff
0x1
0
-
SBS
Configuration
Data
Cycle Count
0
65535
32767
100
-
SBS
Configuration
Data
CC Threshold
100
0
4400
90
mAh
%
SBS
Configuration
Data
CC %
U1
U1
I2
SBS
Configuration
Data
CF MaxError Limit
Design Capacity
Design Energy
Manuf Name
0
100
100
4400
6336
%
SBS
Configuration
Data
0
32767
32767
x
mAh
SBS
Configuration
Data
I2
0
10mWh
(mWh)
SBS
Configuration
Data
S21
S21
S5
U1
U1
U1
I1
x
Texas
Instruments
-
SBS
Configuration
Data
Device Name
x
x
bq20z60
-
SBS
Configuration
Data
Device Chemistry
Deterioration Warn Limit
Deterioration Fault Limit
Cell Life Limit
x
x
LION
50
-
SBS
Configuration
Data
0
100
%
%
%
%
%
%
%
mV
s
SBS
Configuration
Data
0
100
30
SBS
Configuration
Data
0
100
20
SBS
Configuration
Configuration
Configuration
Configuration
Configuration
Configuration
Configuration
Configuration
Configuration
Configuration
Configuration
TDA Set %
-1
-1
-1
-1
0
100
6
SBS
Configuration
1
TDA Clear %
I1
100
8
SBS
Configuration
2
FD Set %
I1
100
2
SBS
Configuration
3
FD Clear %
I1
100
5
SBS
Configuration
4
TDA Set Volt Threshold
TDA Set Volt Time
TDA Clear Volt
FD Set Volt Threshold
FD Volt Time
I2
16800
240
5000
5
SBS
Configuration
6
U1
I2
0
SBS
Configuration
7
0
16800
16800
240
5500
5000
5
mV
mV
s
SBS
Configuration
9
I2
0
SBS
Configuration
11
12
U1
I2
0
SBS
FD Clear Volt
0
16800
5500
mV
Configuration
System Data
System Data
System Data
System Data
System Data
System Data
56
56
56
56
56
58
Manufacturer Data
Manufacturer Data
Manufacturer Data
Manufacturer Data
Manufacturer Data
Manufacturer Info
0
2
4
6
8
0
Pack Lot Code
PCB Lot Code
Firmware Version
Hardware Revision
Cell Revision
H2
H2
H2
H2
H2
S32
0x0
0x0
0x0
0x0
0x0
x
0xffff
0xffff
0xffff
0xffff
0xffff
x
0x0
0x0
0x0
0x0
0x0
-
-
-
-
-
-
Manuf. Info 0
0123456789A
BCDEF01234
56789ABCDE
System Data
System Data
System Data
58
58
58
Manufacturer Info
Manufacturer Info
Manufacturer Info
32
53
74
Manuf. Block 1
Manuf. Block 2
Manuf. Block 3
S21
S21
S21
x
x
x
x
x
x
0123456789A
BCDEF0123
-
-
-
0123456789A
BCDEF0123
0123456789A
BCDEF0123
219
SLUU386–January 2010
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Copyright © 2010, Texas Instruments Incorporated
Data Flash Values
www.ti.com
Table C-307. DATA FLASH VALUES (continued)
Class
Subclass Subclass
ID
Offset Name
Data
Type
Min Value Max
Value
Default Value Units
(EVSW
Units)*
System Data
58
Manufacturer Info
95
Manuf. Block 4
S21
x
x
0123456789A
BCDEF0123
-
System Data
System Data
System Data
System Data
System Data
System Data
System Data
System Data
System Data
System Data
System Data
System Data
System Data
System Data
System Data
System Data
System Data
System Data
59
59
59
59
59
59
59
59
59
59
59
59
59
59
59
59
59
60
Lifetime Data
Lifetime Data
Lifetime Data
Lifetime Data
Lifetime Data
Lifetime Data
Lifetime Data
Lifetime Data
Lifetime Data
Lifetime Data
Lifetime Data
Lifetime Data
Lifetime Data
Lifetime Data
Lifetime Data
Lifetime Data
Lifetime Data
0
Lifetime Max Temp
Lifetime Min Temp
I2
0
1400
300
200
3500
3200
14000
12800
1500
-3000
1500
-1500
-1000
-1500
250
0
0.1°C (°C)
2
I2
-600
1400
0.1°C (°C)
4
Lifetime Max Cell Voltage
Lifetime Min Cell Voltage
Lifetime Max Pack Voltage
Lifetime Min Pack Voltage
Lifetime Max Chg Current
Lifetime Max Dsg Current
Lifetime Max Chg Power
Lifetime Max Dsg Power
Life Max AvgDsg Cur
Life Max AvgDsg Pow
Life Avg Temp
I2
0
32767
32767
32767
32767
32767
32767
32767
32767
32767
32767
1400
mV
6
I2
0
mV
8
I2
0
mV
10
12
14
16
18
22
26
28
30
32
35
37
0
I2
0
mV
I2
-32767
mA
I2
-32767
mA
I2
-32767
10mW (mW)
I2
-32767
10mW (mW)
I2
-32767
mA
I2
-32767
10mW
I2
0
0
0
0
0
0
0.1°C (°C)
Life OT Count
U2
U2
U2
U2
I4
65535
65535
65535
65535
-
Life OT Duration
0
s
-
Life OV Count
0
Life OV Duration
0
s
-
Lifetime Temp
Samples
LT Temp Samples
1400000
00
0
Configuration 64
Configuration 64
Configuration 64
Configuration 64
Configuration 64
Configuration 64
Configuration 65
Registers
Registers
Registers
Registers
Registers
Registers
AFE
0
Operation Cfg A
Operation Cfg B
Operation Cfg C
Permanent Fail Cfg
Permanent Fail Cfg 2
Non-Removable Cfg
AFE.State_CTL
LED Flash Period
LED Blink Period
LED Delay
H2
H2
H2
H2
H2
H2
H1
U2
U2
U2
U1
I1
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0
0xffff
0xffff
0xffff
0xffff
0xffff
0xffff
0xff
0xf29
0x6440
0x130
0x0
0x0
0x0
0x0
512
1024
100
4
-
2
-
4
-
6
-
8
-
10
1
-
-
LED Support
LED Support
LED Support
LED Support
LED Support
LED Support
LED Support
LED Support
LED Support
LED Support
LED Support
LED Support
LED Support
LED Support
LED Support
LED Support
LED Support
Power
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
68
68
68
68
68
68
LED Cfg
LED Cfg
LED Cfg
LED Cfg
LED Cfg
LED Cfg
LED Cfg
LED Cfg
LED Cfg
LED Cfg
LED Cfg
LED Cfg
LED Cfg
LED Cfg
LED Cfg
LED Cfg
LED Cfg
Power
0
65535
65535
65535
255
500us
500us
500us
sec (s)
%
2
0
4
1
6
LED Hold Time
CHG Flash Alarm
CHG Thresh 1
0
7
-1
101
10
8
I1
-1
101
0
%
9
CHG Thresh 2
I1
-1
101
20
%
10
11
12
13
14
15
16
17
18
19
0
CHG Thresh 3
I1
-1
101
40
%
CHG Thresh 4
I1
-1
101
60
%
CHG Thresh 5
I1
-1
101
80
%
DSG Flash Alarm
DSG Thresh 1
I1
-1
101
10
%
I1
-1
101
0
%
DSG Thresh 2
I1
-1
101
20
%
DSG Thresh 3
I1
-1
101
40
%
DSG Thresh 4
I1
-1
101
60
%
DSG Thresh 5
I1
-1
101
80
%
Sink Current
U1
I2
0
3
3
Flash Update OK Voltage
Shutdown Voltage
Shutdown Time
Cell Shutdown Voltage
Cell Shutdown Time
Charger Present
6000
5000
0
20000
20000
240
7500
7000
10
mV
mV
s
Power
Power
2
I2
Power
Power
4
U1
I2
Power
Power
5
0
5000
240
1750
10
mV
s
Power
Power
7
U1
I2
0
Power
Power
8
0
23000
3000
mV
220
Data Flash
SLUU386–January 2010
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Data Flash Values
Table C-307. DATA FLASH VALUES (continued)
Class
Subclass Subclass
ID
Offset Name
Data
Type
Min Value Max
Value
Default Value Units
(EVSW
Units)*
Power
Power
Power
Power
Power
Power
Power
Power
68
68
68
68
68
68
68
68
Power
Power
Power
Power
Power
Power
Power
Power
IT Cfg
IT Cfg
IT Cfg
IT Cfg
IT Cfg
IT Cfg
IT Cfg
10
12
13
15
17
18
19
20
0
Sleep Current
I2
0
100
10
5
mA
Bus Low Time
U1
I2
0
255
1200
1200
240
255
0xff
s
Cal Inhibit Temp Low
Cal Inhibit Temp High
Sleep Voltage Time
Sleep Current Time
Wake Current Reg
Sealed Ship Delay
Load Select
-400
50
450
5
0.1°C (°C)
I2
-400
0.1°C (°C)
U1
U1
H1
U1
U1
U1
I2
1
s
1
20
0x0
5
s
0x0
-
0
255
255
255
32767
0
s
Gas Gauging 80
Gas Gauging 80
Gas Gauging 80
Gas Gauging 80
Gas Gauging 80
Gas Gauging 80
Gas Gauging 80
0
7
-
1
Load Mode
0
0
-
60
77
79
81
83
Term Voltage
-32768
-9000
-32768
0
12000
0
mV
User Rate-mA
I2
mA
User Rate-mW
I2
0
0
10mW (mW)
mAh
Reserve Cap-mAh
Reserve Cap-mWh
I2
9000
14000
0
I2
0
0
10mWh
(mWh)
Gas Gauging 80
Gas Gauging 81
Gas Gauging 81
Gas Gauging 81
Gas Gauging 81
Gas Gauging 81
Gas Gauging 82
Gas Gauging 82
Gas Gauging 82
Gas Gauging 82
Gas Gauging 82
Gas Gauging 82
Gas Gauging 82
Gas Gauging 82
Gas Gauging 82
Gas Gauging 82
Gas Gauging 82
Gas Gauging 82
Gas Gauging 82
Gas Gauging 82
Gas Gauging 82
IT Cfg
88
0
Ra Max Delta
I2
I2
I2
I2
U1
U1
I2
I2
I2
I2
I2
H1
I2
I2
I2
I2
I2
I2
I2
I2
I2
H2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
0
32000
2000
2000
1000
240
44
mOhms
mA
Current Thresholds
Dsg Current Threshold
Chg Current Threshold
Quit Current
0
100
50
Current Thresholds
2
0
mA
Current Thresholds
Current Thresholds
Current Thresholds
State
4
0
10
mA
6
Dsg Relax Time
Chg Relax Time
Qmax Cell 0
0
1
s
7
0
240
60
s
0
0
32767
32767
32767
32767
32767
0x6
4400
4400
4400
4400
4400
0x0
0
mAh
mAh
mAh
mAh
mAh
-
State
2
Qmax Cell 1
0
State
4
Qmax Cell 2
0
State
6
Qmax Cell 3
0
State
8
Qmax Pack
0
State
12
13
15
17
19
21
23
25
31
33
0
Update Status
Cell 0 Chg dod at EoC
Cell 1 Chg dod at EoC
Cell 2 Chg dod at EoC
Cell 3 Chg dod at EoC
Avg I Last Run
Avg P Last Run
Delta Voltage
0x0
0
State
16384
16384
16384
16384
32767
32767
32767
32767
32767
0x0
-
State
0
0
-
State
0
0
-
State
0
0
-
State
-32768
-32768
-32768
-32767
-32767
0x0
38
-2000
-3022
0
mA
State
10mW
mV
State
State
Max Avg I Last Run
Max Avg P Last Run
Cell0 R_a flag
Cell0 R_a 0
-2000
-3022
0xff55
38
mA
State
10mW
-
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
88
88
88
88
88
88
88
88
88
88
88
88
88
R_a0
R_a0
2
38
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
R_a0
4
Cell0 R_a 1
41
41
41
R_a0
6
Cell0 R_a 2
43
43
43
R_a0
8
Cell0 R_a 3
44
44
44
R_a0
10
12
14
16
18
20
22
24
Cell0 R_a 4
42
42
42
R_a0
Cell0 R_a 5
42
42
42
R_a0
Cell0 R_a 6
45
45
45
R_a0
Cell0 R_a 7
48
48
48
R_a0
Cell0 R_a 8
49
49
49
R_a0
Cell0 R_a 9
52
52
52
R_a0
Cell0 R_a 10
56
56
56
R_a0
Cell0 R_a 11
64
64
64
221
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Copyright © 2010, Texas Instruments Incorporated
Data Flash Values
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Table C-307. DATA FLASH VALUES (continued)
Class
Subclass Subclass
ID
Offset Name
Data
Type
Min Value Max
Value
Default Value Units
(EVSW
Units)*
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
88
88
88
89
89
89
89
89
89
89
89
89
89
89
89
89
89
89
89
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
91
91
91
91
91
91
91
91
91
91
91
91
91
91
91
R_a0
R_a0
R_a0
R_a1
R_a1
R_a1
R_a1
R_a1
R_a1
R_a1
R_a1
R_a1
R_a1
R_a1
R_a1
R_a1
R_a1
R_a1
R_a1
R_a2
R_a2
R_a2
R_a2
R_a2
R_a2
R_a2
R_a2
R_a2
R_a2
R_a2
R_a2
R_a2
R_a2
R_a2
R_a2
R_a3
R_a3
R_a3
R_a3
R_a3
R_a3
R_a3
R_a3
R_a3
R_a3
R_a3
R_a3
R_a3
R_a3
R_a3
26
28
30
0
Cell0 R_a 12
I2
I2
I2
H2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
H2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
H2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
74
128
378
0x0
38
41
43
44
42
42
45
48
49
52
56
64
74
128
378
0x0
38
41
43
44
42
42
45
48
49
52
56
64
74
128
378
0x0
38
41
43
44
42
42
45
48
49
52
56
64
74
128
74
74
2^-10Ω
2^-10Ω
2^-10Ω
-
Cell0 R_a 13
Cell0 R_a 14
Cell1 R_a flag
Cell1 R_a 0
Cell1 R_a 1
Cell1 R_a 2
Cell1 R_a 3
Cell1 R_a 4
Cell1 R_a 5
Cell1 R_a 6
Cell1 R_a 7
Cell1 R_a 8
Cell1 R_a 9
Cell1 R_a 10
Cell1 R_a 11
Cell1 R_a 12
Cell1 R_a 13
Cell1 R_a 14
Cell2 R_a flag
Cell2 R_a 0
Cell2 R_a 1
Cell2 R_a 2
Cell2 R_a 3
Cell2 R_a 4
Cell2 R_a 5
Cell2 R_a 6
Cell2 R_a 7
Cell2 R_a 8
Cell2 R_a 9
Cell2 R_a 10
Cell2 R_a 11
Cell2 R_a 12
Cell2 R_a 13
Cell2 R_a 14
Cell3 R_a flag
Cell3 R_a 0
Cell3 R_a 1
Cell3 R_a 2
Cell3 R_a 3
Cell3 R_a 4
Cell3 R_a 5
Cell3 R_a 6
Cell3 R_a 7
Cell3 R_a 8
Cell3 R_a 9
Cell3 R_a 10
Cell3 R_a 11
Cell3 R_a 12
Cell3 R_a 13
128
378
0x0
38
41
43
44
42
42
45
48
49
52
56
64
74
128
378
0x0
38
41
43
44
42
42
45
48
49
52
56
64
74
128
378
0x0
38
41
43
44
42
42
45
48
49
52
56
64
74
128
128
378
0xff55
38
2
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
-
4
41
6
43
8
44
10
12
14
16
18
20
22
24
26
28
30
0
42
42
45
48
49
52
56
64
74
128
378
0xff55
38
2
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
-
4
41
6
43
8
44
10
12
14
16
18
20
22
24
26
28
30
0
42
42
45
48
49
52
56
64
74
128
378
0xff55
38
2
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
4
41
6
43
8
44
10
12
14
16
18
20
22
24
26
28
42
42
45
48
49
52
56
64
74
128
222
Data Flash
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Data Flash Values
Table C-307. DATA FLASH VALUES (continued)
Class
Subclass Subclass
ID
Offset Name
Data
Type
Min Value Max
Value
Default Value Units
(EVSW
Units)*
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
91
92
92
92
92
92
92
92
92
92
92
92
92
92
92
92
92
93
93
93
93
93
93
93
93
93
93
93
93
93
93
93
93
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
95
R_a3
30
0
Cell3 R_a 14
I2
H2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
H2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
H2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
H2
378
0xffff
38
378
378
0xffff
38
2^-10Ω
-
R_a0x
R_a0x
R_a0x
R_a0x
R_a0x
R_a0x
R_a0x
R_a0x
R_a0x
R_a0x
R_a0x
R_a0x
R_a0x
R_a0x
R_a0x
R_a0x
R_a1x
R_a1x
R_a1x
R_a1x
R_a1x
R_a1x
R_a1x
R_a1x
R_a1x
R_a1x
R_a1x
R_a1x
R_a1x
R_a1x
R_a1x
R_a1x
R_a2x
R_a2x
R_a2x
R_a2x
R_a2x
R_a2x
R_a2x
R_a2x
R_a2x
R_a2x
R_a2x
R_a2x
R_a2x
R_a2x
R_a2x
R_a2x
R_a3x
xCell0 R_a flag
xCell0 R_a 0
xCell0 R_a 1
xCell0 R_a 2
xCell0 R_a 3
xCell0 R_a 4
xCell0 R_a 5
xCell0 R_a 6
xCell0 R_a 7
xCell0 R_a 8
xCell0 R_a 9
xCell0 R_a 10
xCell0 R_a 11
xCell0 R_a 12
xCell0 R_a 13
xCell0 R_a 14
xCell1 R_a flag
xCell1 R_a 0
xCell1 R_a 1
xCell1 R_a 2
xCell1 R_a 3
xCell1 R_a 4
xCell1 R_a 5
xCell1 R_a 6
xCell1 R_a 7
xCell1 R_a 8
xCell1 R_a 9
xCell1 R_a 10
xCell1 R_a 11
xCell1 R_a 12
xCell1 R_a 13
xCell1 R_a 14
xCell2 R_a flag
xCell2 R_a 0
xCell2 R_a 1
xCell2 R_a 2
xCell2 R_a 3
xCell2 R_a 4
xCell2 R_a 5
xCell2 R_a 6
xCell2 R_a 7
xCell2 R_a 8
xCell2 R_a 9
xCell2 R_a 10
xCell2 R_a 11
xCell2 R_a 12
xCell2 R_a 13
xCell2 R_a 14
xCell3 R_a flag
0xffff
38
2
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
-
4
41
41
41
6
43
43
43
8
44
44
44
10
12
14
16
18
20
22
24
26
28
30
0
42
42
42
42
42
42
45
45
45
48
48
48
49
49
49
52
52
52
56
56
56
64
64
64
74
74
74
128
378
0xffff
38
128
378
0xffff
38
128
378
0xffff
38
2
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
-
4
41
41
41
6
43
43
43
8
44
44
44
10
12
14
16
18
20
22
24
26
28
30
0
42
42
42
42
42
42
45
45
45
48
48
48
49
49
49
52
52
52
56
56
56
64
64
64
74
74
74
128
378
0xffff
38
128
378
0xffff
38
128
378
0xffff
38
2
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
-
4
41
41
41
6
43
43
43
8
44
44
44
10
12
14
16
18
20
22
24
26
28
30
0
42
42
42
42
42
42
45
45
45
48
48
48
49
49
49
52
52
52
56
56
56
64
64
64
74
74
74
128
378
0xffff
128
378
0xffff
128
378
0xffff
223
SLUU386–January 2010
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Data Flash
Copyright © 2010, Texas Instruments Incorporated
Data Flash Values
www.ti.com
Table C-307. DATA FLASH VALUES (continued)
Class
Subclass Subclass
ID
Offset Name
Data
Type
Min Value Max
Value
Default Value Units
(EVSW
Units)*
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
Ra Table
PF Status
PF Status
PF Status
PF Status
PF Status
PF Status
PF Status
PF Status
PF Status
PF Status
PF Status
PF Status
PF Status
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
96
96
96
96
96
96
96
96
96
96
96
96
96
R_a3x
2
xCell3 R_a 0
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
I2
H2
H2
H2
I2
I2
I2
I2
I2
I2
I2
H2
I2
I2
38
41
43
44
42
42
45
48
49
52
56
64
74
128
378
0x0
0x0
0x0
0
38
38
41
43
44
42
42
45
48
49
52
56
64
74
128
378
0x0
0x0
0x0
0
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
2^-10Ω
-
R_a3x
4
xCell3 R_a 1
xCell3 R_a 2
xCell3 R_a 3
xCell3 R_a 4
xCell3 R_a 5
xCell3 R_a 6
xCell3 R_a 7
xCell3 R_a 8
xCell3 R_a 9
xCell3 R_a 10
xCell3 R_a 11
xCell3 R_a 12
xCell3 R_a 13
xCell3 R_a 14
Saved PF Flags 1
Saved PF Flags 2
Fuse Flag
41
R_a3x
6
43
R_a3x
8
44
R_a3x
10
12
14
16
18
20
22
24
26
28
30
0
42
R_a3x
42
R_a3x
45
R_a3x
48
R_a3x
49
R_a3x
52
R_a3x
56
R_a3x
64
R_a3x
74
R_a3x
128
378
0xffff
0xffff
0xffff
32767
9999
9999
9999
9999
32767
9999
0xffff
32767
32767
R_a3x
Device Status Data
Device Status Data
Device Status Data
Device Status Data
Device Status Data
Device Status Data
Device Status Data
Device Status Data
Device Status Data
Device Status Data
Device Status Data
Device Status Data
Device Status Data
2
-
4
- (flg)
mV
6
PF Voltage
8
PF C4 Voltage
PF C3 Voltage
PF C2 Voltage
PF C1 Voltage
PF Current
0
0
mV
10
12
14
16
18
20
22
24
0
0
mV
0
0
mV
0
0
mV
-32768
-9999
0x0
0
0
mA
PF Temperature
PF Batt Stat
0
0.1 K (°K)
-
0x0
0
PF RC-mAh
mAh
PF RC-10mWh
0
0
10mWh
(mWh)
PF Status
PF Status
PF Status
PF Status
PF Status
PF Status
PF Status
PF Status
PF Status
PF Status
PF Status
PF Status
PF Status
PF Status
Calibration
96
96
96
96
96
97
97
97
97
97
97
97
97
97
104
Device Status Data
Device Status Data
Device Status Data
Device Status Data
Device Status Data
AFE Regs
26
28
30
32
34
0
PF Chg Status
PF Safety Status 1
PF Safety Status2
Saved 1st PF Flags 1
Saved 1st PF Flags 2
AFE Status
H2
H2
H2
H2
H2
H1
H1
H1
H1
H1
H1
H1
H1
H1
F4
0x0
0xffff
0xffff
0xffff
0xffff
0xffff
0xff
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0x0
0x0
0x0
0x0
0x0
AFE Regs
1
AFE Output
0x0
0xff
AFE Regs
2
AFE State
0x0
0xff
AFE Regs
3
AFE Function
AFE Cell Select
AFE OLV
0x0
0xff
AFE Regs
4
0x0
0xff
AFE Regs
5
0x0
0x1f
0xff
AFE Regs
6
AFE OLT
0x0
AFE Regs
7
AFE SCC
0x0
0xff
AFE Regs
8
AFE SCD
0x0
0xff
Data
0
CC Gain
1.00E-01
4.00E+0 0.9419
0
Calibration
104
Data
4
CC Delta
F4
2.9826E+0 1.193046 280932.625
-
4
E+06
Calibration
Calibration
Calibration
Calibration
104
104
104
104
Data
Data
Data
Data
8
Ref Voltage
AFE Pack Gain
CC Offset
I2
I2
I2
I2
0
32767
32767
32767
32767
24500
22050
-1667
0
-
-
-
-
12
14
16
0
-32768
-32767
Board Offset
224
Data Flash
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Data Flash Values
Table C-307. DATA FLASH VALUES (continued)
Class
Subclass Subclass
ID
Offset Name
Data
Type
Min Value Max
Value
Default Value Units
(EVSW
Units)*
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
Calibration
104
104
104
105
105
105
105
105
105
105
105
105
106
106
106
106
106
106
106
106
106
106
106
106
107
107
107
Data
18
19
20
0
Int Temp Offset
I1
-128
127
0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Data
Ext1 Temp Offset
Ext2 Temp Offset
CC Current
I1
-128
127
0
Data
I1
-128
127
0
Config
I2
0
32767
32767
32767
65535
65535
65535
65535
65535
65535
32767
32767
32767
32767
32767
32767
32767
32767
32767
32767
32767
32767
255
3000
16800
2980
250
32
Config
2
Voltage Signal
Temp Signal
CC Offset Time
ADC Offset Time
CC Gain Time
Voltage Time
Temperature Time
Cal Mode Timeout
Ext Coef 1
I2
0
Config
4
I2
0
Config
6
U2
U2
U2
U2
U2
U2
I2
0
Config
8
0
Config
10
12
14
17
0
0
250
1984
32
Config
0
Config
0
Config
0
38400
-28285
20848
-7537
4012
0
Temp Model
Temp Model
Temp Model
Temp Model
Temp Model
Temp Model
Temp Model
Temp Model
Temp Model
Temp Model
Temp Model
Temp Model
Current
-32768
-32768
-32768
-32768
-32768
-32768
-32768
-32768
-32768
-32768
-32768
-32768
0
2
Ext Coef 2
I2
4
Ext Coef 3
I2
6
Ext Coef 4
I2
8
Ext Min AD
I2
10
12
14
16
18
20
22
0
Ext Max Temp
Int Coef 1
I2
4012
0
I2
Int Coef 2
I2
0
Int Coef 3
I2
-11136
5754
0
Int Coef 4
I2
Int Min AD
I2
Int Max Temp
Filter
I2
5754
239
3
U1
U1
U1
Current
1
Deadband
0
255
Current
2
CC Deadband
0
255
34
225
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226
Data Flash
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Appendix D
SLUU386–January 2010
Glossary
ADC
AFE
alert
bit
Analog to Digital Converter
Analog Front End
A warning set by the bq20z60-R1/bq20z65-R1
A single bit in a SBS command or data flash value which can be changed by the
user
CC
Coulomb Counter
CHG FET
charge FET, connected to the CHG pin of the bq20z60-R1/bq20z65-R1; used to
enable or disable charging
COV
CPU
CUV
DF
Cell overvoltage
Central Processing Unit
Cell undervoltage
Data flash
DOD
DSG
Depth of Discharge
Flag set by the bq20z60-R1/bq20z65-R1 to indicate charge (DSG= 0) or
discharge (DSG=1)
DSG FET
Discharge FET, connected to the DSG pin of the bq20z60-R1/bq20z65-R1; used
to enable or disable discharging
FAS
FBF
FC
Full Access Security
Fuse Blow Failure
Fully Charged
CMTO
FD
Charge Mode Timeout
Fully Discharged
flag
A single bit in an SBS command or data flash value which is set by the
bq20z60-R1/bq20z65-R1 and indicates a status change
IC
LED
Integrated Circuit
Light Emitting Diode
Lithium-Ion
Li-Ion
NR
Non-removable
OC
Overcurrent
OCA
OCV
OTC
OTD
PCHG
PCMTO
PEC
PF
Overcharge alarm
Open-circuit voltage
Overtemperature charging
Overtemperature discharging
Pre-Charge
Pre-Charge Timeout
Packet Error Checking
Permanent Fail
POV
PRES
Pack overvoltage
System Present Flag
227
SLUU386–January 2010
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Glossary
Copyright © 2010, Texas Instruments Incorporated
Appendix D
www.ti.com
PUV
Qmax
RCA
Pack undervoltage
Maximum Chemical Capacity
Remaining Capacity Alarm
Relative State of Charge
Smart Battery System
Short Circuit Charge
RSOC
SBS
SCC
SCD
Short Circuit Discharge
System Management Bus
Safety overcurrent
SMBus
SOC
SOT
Safety overtemperature
Sealed mode flag
SS
TCA
Terminate Charge Alarm
Terminate Discharge Alarm
TDA
ZVCHG FET
Pre-charge FET, connected to the ZVCHG pin; depending on the configuration it
is used for pre-charging and/or zero-volt charging
XDSG
Discharge Fault flag
228
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1st Level Protection
AuthenKey1
2nd Level (Permanent) Failure Actions
2nd Level Protection
AuthenKey2
AuthenKey3
2nd Level Protection IC Input
Authenticate
AverageCurrent
AverageTimeToEmpty
AverageTimeToFull
AverageVoltage
Avg I Last Run
Avg P Last Run
A
AbsoluteStateOfCharge
Active CIM Check Voltage
Active CIM Fail Voltage
Active CIM Time
ADC Offset Time
AFE_C , ,
B
AFE_P , ,
Battery Depleted
BatteryMode
Battery Pack Removed
BatteryStatus
BCAST
AFE Cell Select
AFE Check Time
AFE Communication Fault
AFEData
AFE Fail Limit
AFE Fail Recovery Time
AFE Function
AFE Init Limit
AFE Init Retry Limit
AFE Init Verification
AFE OC Dsg
AFE OC Dsg Recovery
AFE OC Dsg Time
AFE OLT
Board Offset
BootROM
Bus Low Time
C
Calibration Mode
Cal Inhibit Temp High
Cal Inhibit Temp Low
Cal Mode Timeout
CapM
CB
AFE OLV
CC ,
AFE Output
CC0
CC1
AFE Pack Gain
AFE Regs
CC Current
CC Deadband
CC Delta
AFE SCC
AFE SC Chg Cfg
AFE SCD
CC Gain
CC Gain Time
CC Offset
AFE SC Dsg Cfg
AFE SC Recovery
AFE State
CC Offset Time
CCT
AFE.State_CTL
AFE Status
CC Threshold
Cell 0 Chg dod at EOC
Cell0 R_a 0
Cell0 R_a 1
Cell0 R_a 2
Cell0 R_a 3
Cell0 R_a 4
Cell0 R_a 5
Cell0 R_a 6
Cell0 R_a 7
AFE Watchdog
AM
AOCD , ,
ASCC
ASCD
AtRate
AtRateOK
AtRateTimeToEmpty
AtRateTimeToFull
AuthenKey0
229
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Appendix D
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Cell0 R_a 8
Cell0 R_a 9
Cell0 R_a 10
Cell0 R_a 11
Cell0 R_a 12
Cell0 R_a 13
Cell0 R_a 14
Cell0 R_a flag
Cell 1 Chg dod at EOC
Cell1 R_a 0
Cell1 R_a 1
Cell1 R_a 2
Cell1 R_a 3
Cell1 R_a 4
Cell1 R_a 5
Cell1 R_a 6
Cell1 R_a 7
Cell1 R_a 8
Cell1 R_a 9
Cell1 R_a 10
Cell1 R_a 11
Cell1 R_a 12
Cell1 R_a 13
Cell1 R_a 14
Cell1 R_a flag
Cell 2 Chg dod at EOC
Cell2 R_a 0
Cell2 R_a 1
Cell2 R_a 2
Cell2 R_a 3
Cell2 R_a 4
Cell2 R_a 5
Cell2 R_a 6
Cell2 R_a 7
Cell2 R_a 8
Cell2 R_a 9
Cell2 R_a 10
Cell2 R_a 11
Cell2 R_a 12
Cell2 R_a 13
Cell2 R_a 14
Cell2 R_a flag
Cell 3 Chg dod at EOC
Cell3 R_a 0
Cell3 R_a 1
Cell3 R_a 2
Cell3 R_a 3
Cell3 R_a 4
Cell3 R_a 5
Cell3 R_a 6
Cell3 R_a 7
Cell3 R_a 8
Cell3 R_a 9
Cell3 R_a 10
Cell3 R_a 11
Cell3 R_a 12
Cell3 R_a 13
Cell3 R_a 14
Cell3 R_a flag
CELL_TAPER
Cell Balancing
Cell Imbalance Fault
Cell Life Limit
Cell Overvoltage
Cell Revision
Cell Shutdown Time
Cell Shutdown Voltage
Cell Undervoltage
CellVoltage1
CellVoltage2
CellVoltage3
CellVoltage4
Cell Voltage Thresh Hys
Cell Voltage Threshold1
Cell Voltage Threshold2
CF
CFETF , ,
CF Max Error Limit
Charge Alarm
Charge Control
Charge Control SMBus Broadcasts
Charge Fault Cfg
Charge Inhibit
Charge Mode Timeout
Charge Overcurrent
Charger-Dependent Fully-Charged State
Charger Present
Charge Suspend
Charge Timeout ,
ChargingCurrent
Charging Faults
ChargingStatus
ChargingVoltage
Chemistry ID
CHG
Chg Current Threshold
CHGFET
Chg FET Fault
CHG Flash Alarm
CHGIN
CHGLED ,
ChgM
Chg Mode
CHGOCV_DIS
Chg Relax Time
CHGSUSP ,
CHGTERM
CHG Thresh 1
CHG Thresh 2
CHG Thresh 3
CHG Thresh 4
CHG Thresh 5
230
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www.ti.com
Appendix D
CIM_A , ,
CIM_R , ,
Display Activation
Display Configuration
Display Format
Display ON ,
DMODE ,
DSG ,
Dsg Current Threshold
Dsg FET Fault
DSG Flash Alarm
DSGIN
CIM Active Detection
CIM At Rest Detection
CIM Battery Rest Time
Clearing Permanent Failure
CLL
CMTO ,
COV ,
COV Time
CPE
Dsg Mode
CS_XCHGLV
CSV
CSYNC
Dsg Relax Time
DSG Thresh 1
DSG Thresh 2
DSG Thresh 3
DSG Thresh 4
DSG Thresh 5
Current
Current Recovery Time
Current Taper Window
CUV ,
E
CUV_RECOV_CHG
CUV Recovery
CUV Threshold
CUV Time
EC0
EC1
EC2
EC3
CycleCount ,
Ext1 Temp Offset
Ext2 Temp Offset
Ext Coef 1
Ext Coef 2
Ext Coef 3
Ext Coef 4
Extended SBS Commands ,
Ext Max Temp
Ext Min AD
D
DataFlashSubClassID
DataFlashSubClassPage1
DataFlashSubClassPage2
DataFlashSubClassPage3
DataFlashSubClassPage4
DataFlashSubClassPage5
DataFlashSubClassPage6
DataFlashSubClassPage8
DataFlashSubClassPageDataFlashSubClassPage7
Data Flash Value Summary Table , , , , , , , , , , ,
Deadband
F
FAS
FBF , ,
FC
Delta Voltage
FC Clear %
FC Set %
Depleted Recovery
Depleted Voltage
FD
Depleted Voltage Time
DesignCapacity ,
Design Energy
FD Clear%
FD Clear Volt
FD Set %
DesignVoltage ,
FD Set Volt Threshold
FD Volt Time
FET0
Deterioration Fault Limit
Deterioration Warn Limit
DetF
FET1
DetW
FETControl
FET Fail Limit
FET Fail Time
Filter
DeviceChemistry ,
DeviceName ,
Device Type
DF Checksum
Firmware Version ,
Flash Update OK Voltage
Full Access Device
FullAccessKey
FullChargeCapacity
DFETF , ,
DFF , ,
DF Failure
Discharge Alarm
Discharge Overcurrent
231
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Appendix D
www.ti.com
Fuse Fail Limit
Fuse Fail Time
Fuse Flag
LEDR ,
LEDRCA ,
LEDs OFF ,
Fuse State Detection
LEDs ON ,
Life Avg Temp
G
Life Max AvgDsg Cur
Life Max AvgDsg Pow
Life OT Count
Life OT Duration
Life OV Count
Life OV Duration
LifetimeData1
LifetimeData2
Lifetime Max Cell Voltage
Lifetime Max Chg Current
Lifetime Max Chg Power
Lifetime Max Dsg Current
Lifetime Max Dsg Power
Lifetime Max Pack Voltage
Lifetime Max Temp
Lifetime Min Cell Voltage
Lifetime Min Pack Voltage
Lifetime Min Temp
Load Mode ,
Gas Gauging
H
Hardware Revision
Hardware Version
Hi Dsg Start Temp
Host Watchdog
Host Watchdog Timeout
HPE
HTCHG
HT Chg Current1
HT Chg Current2
HT Chg Current3
HT Chg Voltage
HT COV Recovery
HT COV Threshold
HT SOV Threshold
HWDG ,
Load Select ,
LOCK_0
LTCHG
I
ICC
Impedance Track
INIT
LT Chg Current1
LT Chg Current2
LT Chg Current3
LT Chg Voltage
LT COV Recovery
LT COV Threshold
LT SOV Threshold
LT Temp Samples
Init Battery Mode
Int Coef 1
Int Coef 2
Int Coef 3
Int Coef 4
Int Max Temp
Int Min AD
Int Temp Offset
IT Enable
IWAKE ,
M
Maintenance Current
ManufactureDate
ManufacturerAccess
ManufacturerData
ManufacturerInfo
ManufacturerName
Manufacturer Status
Manuf. Block 1
Manuf. Block 2
Manuf. Block 3
Manuf. Block 4
ManufBlock1..4
Manuf Date
J
JEITA Temperature Ranges
JT1
JT2
JT2a
JT3
JT4
L
LDMD
LED0 ,
LED1 ,
LED Blink Period ,
LED Current Configuration
LED Delay ,
LED Flash Period ,
LED Hold Time ,
Manuf. Info 0
Manuf Name
Max Avg I Last Run
Max Avg P Last Run
MaxError
MCHG
232
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www.ti.com
Appendix D
Min Cell Deviation
Over Charge Capacity
Over Charge Recovery
Overcharging Current ,
Over Charging Curr Recov
Over Charging Curr Time
Overcharging Voltage ,
Over Charging Volt Time
Overcurrent Conditions
Overtemperature Protection
N
NCSMB
Non-Removable Battery Mode Recovery ,
Non-Removable Cfg
Normal Mode
NR
NRCHG
O
P
OC , ,
Pack Lot Code
PackVoltage
PB
OC (1st Tier) Chg
OC (1st Tier) Chg Time
OC (1st Tier) Dsg
OC (1st Tier) Dsg Time
OC (2nd Tier) Chg
OC (2nd Tier) Chg Time
OC (2nd Tier) Dsg
OC (2nd Tier) Dsg Time
OCA
OCC , ,
OCC2 ,
OC Chg Recovery
OCD , ,
PBS
PCB Lot Code
PCHG
PCMTO ,
PDF0
PDF1
Periodic AFE Verification
Permanent Fail Cfg
Permanent Fail Cfg 2
Permanent Fail Clear
PF ,
OCD2 ,
PF0
OC Dsg Recovery
OCHGI , ,
PF1
PFAlert
OCHGV , ,
PFAlert2
OCV_WGHT
OD
Open Thermistor ,
Open Time
Operation Cfg A
Operation Cfg B
Operation Cfg C
OperationStatus
OT1C ,
PF Batt Stat
PF C1 Voltage
PF C2 Voltage
PF C3 Voltage
PF C4 Voltage
PF Chg Status
PF Current
PFD0
PFD1
OT1 Chg Recovery
OT1 Chg Threshold
OT1 Chg Time
OT1D ,
OT1 Dsg Recovery
OT1 Dsg Threshold
OT1 Dsg Time
OT2C ,
OT2 Chg Recovery
OT2 Chg Threshold
OT2 Chg Time
OT2D ,
OT2 Dsg Recovery
OT2 Dsg Threshold
OT2 Dsg Time
OTA
PFIN ,
PFIN Detect Time
PFKey
PF Min Fuse Blow Voltage
PF RC-10mWh
PF RC-mAh
PF Safety Status1
PF Safety Status 2
PF SOV Fuse Blow Delay
PFStatus
PFStatus2
PF Temperature
PF Voltage
PFVSHUT
PRE_ZT_PF_En
Precharge Mode Timeout
Precharge Timeout
Precharge Timeout - PCMTO
OTFET
Overcharge
233
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Appendix D
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Pre-chg Current
Safety Undervoltage Protection
Saved 1st PF Flag 1
Saved 1st PF Flag 2
Saved PF Flags 1..2
SBS Command Table ,
SCC ,
Pre-Chg Recovery Voltage
Pre-Chg Voltage Theshold
PRES
Primary Charge Termination
Pulsed Load Compensation
SCD ,
Seal Device
Sealed Ship Delay
Security
Q
QEN
Qmax
Qmax Cell 0
Qmax Cell 1
Qmax Cell 2
Qmax Cell 3
Qmax initial values
Qmax Pack
Qmax Update Condition
Quit Current
SenseResistor
SerialNumber
Ser. Num.
Ship Mode
Short-Circuit Protection
Shutdown
Shutdown Mode
Shutdown Time
Shutdown Voltage
SHUTV
Sink Current
SLED ,
R
R_DIS
Ra Max Delta
RCA
Ref Voltage
Sleep ,
Sleep Current
Sleep Current Time
Sleep Mode
Sleep Voltage Time
SOCC , ,
SOC Chg
SOC Chg Time
SOCD , ,
SOC Dsg
SOC Dsg Time
SOPT1 , ,
SOPT2 , ,
SOT1C , ,
SOT1 Chg Threshold
SOT1 Chg Time
SOT1D , ,
SOT1 Dsg Threshold
SOT1 Dsg Time
SOT2C , ,
SOT2 Chg Threshold
SOT2 Chg Time
SOT2D , ,
SOT2 Dsg Threshold
SOT2 Dsg Time
SOV ,
SOV Time
SpecificationInfo
Spec Info
SS
ST1CHG
RelativeStateOfCharge
Relaxation Mode
RemainingCapacity
RemainingCapacityAlarm
RemainingTimeAlarm
Rem Cap Alarm
Rem Energy Alarm
Rem Time Alarm
RESCAP
Reserve Battery Capacity
Reserve Cap-mAh
Reserve Cap-mWh
Reset
ResetData
Rest CIM Check Voltage
Rest CIM Current
Rest CIM Fail Voltage
Rest CIMTime
RSNS
RSOCL
RTA
RunTimeToEmpty
S
SAFE Activation
SAFE Clear
SafetyAlert
SafetyAlert2
Safety Overcurrent Protection
Safety Overtemperature Protection
Safety Overvoltage Protection
SafetyStatus
ST1 Chg Current1
ST1 Chg Current2
ST1 Chg Current3
SafetyStatus2
234
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Appendix D
ST1 Chg Voltage
ST2CHG
User Rate-10mW
User Rate-mA
ST2 Chg Current1
ST2 Chg Current2
ST2 Chg Current3
ST2 Chg Voltage
Standard Recovery ,
STATE0
V
VOK
Voltage
Voltage Signal
Voltage Time
STATE1
STATE2
STATE3
W
WAKE
Wake Current Reg
Wake Function
WDF ,
StateOfHealth
ST COV Recovery
ST COV Threshold
ST SOV Threshold
SUV , ,
SUV_MODE
SUV Threshold
SUV Time
WDResetData
X
XAFE_C
XAFE_P
xCell0 R_a 0
xCell0 R_a 1
xCell0 R_a 2
xCell0 R_a 3
xCell0 R_a 4
xCell0 R_a 5
xCell0 R_a 6
xCell0 R_a 7
xCell0 R_a 8
xCell0 R_a 9
xCell0 R_a 10
xCell0 R_a 11
xCell0 R_a 12
xCell0 R_a 13
xCell0 R_a 14
xCell0 R_a flag
xCell1 R_a 0
xCell1 R_a 1
xCell1 R_a 2
xCell1 R_a 3
xCell1 R_a 4
xCell1 R_a 5
xCell1 R_a 6
xCell1 R_a 7
xCell1 R_a 8
xCell1 R_a 9
xCell1 R_a 10
xCell1 R_a 11
xCell1 R_a 12
xCell1 R_a 13
xCell1 R_a 14
xCell1 R_a flag
xCell2 R_a 0
xCell2 R_a 1
xCell2 R_a 2
xCell2 R_a 3
xCell2 R_a 4
xCell2 R_a 5
System Present
T
Taper Current
Taper Voltage
TCA
TCA Clear %
TCA Set %
TDA
TDA Clear %
TDA Clear Volt
TDA Set %
TDA Set Volt Threshold
TDA Set Volt Time
TEMP0
TEMP1
Temperature
Temperature Time
Temp Hys
TempRange
Temp Signal
Termination Voltage
Term Voltage
Time-Limit-Based Protection
TR1
TR2
TR2A
TR3
TR4
TR5
TS1Temperature
TS2Temperature
U
Unseal Device
UnSealKey
Update Status
235
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Appendix D
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xCell2 R_a 6
xCell2 R_a 7
xCell2 R_a 8
xCell2 R_a 9
xCell2 R_a 10
xCell2 R_a 11
xCell2 R_a 12
xCell2 R_a 13
xCell2 R_a 14
xCell2 R_a flag
xCell3 R_a 0
xCell3 R_a 1
xCell3 R_a 2
xCell3 R_a 3
xCell3 R_a 4
xCell3 R_a 5
xCell3 R_a 6
xCell3 R_a 7
xCell3 R_a 8
xCell3 R_a 9
xCell3 R_a 10
xCell3 R_a 11
xCell3 R_a 12
xCell3 R_a 13
xCell3 R_a 14
xCell3 R_a flag
XCFETF
XCHG
XCHGLV ,
XCIM_A
XCIM_R
XDFETF
XDFF
XDSG
XDSGI
XPFIN
XSOCC
XSOCD
XSOPT1
XSOPT2
XSOT1C
XSOT1D
XSOT2C
XSOT2D
XSOV
XSUV
XVSHUT
Z
ZVCHG
ZVCHG0
ZVCHG1
236
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