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BQ20Z70-V110PWR [TI]

IC,BATTERY MANAGEMENT,TSSOP,20PIN,PLASTIC, GREEN, PLASTIC, TSSOP-20;
BQ20Z70-V110PWR
型号： BQ20Z70-V110PWR
厂家： TEXAS INSTRUMENTS    TEXAS INSTRUMENTS
描述：

IC,BATTERY MANAGEMENT,TSSOP,20PIN,PLASTIC, GREEN, PLASTIC, TSSOP-20

光电二极管
文件： 总23页 (文件大小：393K)
中文：  中文翻译
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bq20z70-V110  
www.ti.com  
SLUS742–OCTOBER 2006–REVISED OCTOBER 2006  
SBS 1.1-COMPLIANT GAS GAUGE ENABLED WITH IMPEDANCE TRACK™  
TECHNOLOGY FOR USE WITH THE bq29330  
FEATURES  
APPLICATIONS  
•
•
•
Notebook PCs  
Medical and Test Equipment  
Portable Instrumentation  
•
Next Generation Patented Impedance Track™  
Technology accurately Measures Available  
Charge in Li-Ion and Li-Polymer Batteries  
•
•
•
•
•
Better than 1% Error Over Lifetime of the  
Battery  
DESCRIPTION  
Instant Accuracy – No Learning Cycle  
Required  
The bq20z70-V110 SBS-compliant gas gauge IC,  
incorporating  
patented  
Impedance  
Track™  
technology, is designed for battery-pack or in-system  
installation. The bq20z70-V110 measures and  
maintains an accurate record of available charge in  
Li-ion or Li-polymer batteries using its integrated  
Supports the Smart Battery Specification  
SBS V1.1  
Powerful 8-Bit RISC CPU With Ultra-Low  
Power Modes  
high-performance  
analog  
peripherals.  
The  
bq20z70-V110 monitors capacity change, battery  
impedance, open-circuit voltage, and other critical  
parameters of the battery pack, and reports the  
information to the system host controller over a  
serial-communication bus. It is designed to work with  
the bq29330 analog front-end (AFE) protection IC to  
maximize functionality and safety, and minimize  
component count and cost in smart battery circuits.  
Works With the TI bq29330 Analog Front-End  
(AFE) Protection IC to Provide Complete Pack  
Electronics Solution  
•
Full Array of Programmable Protection  
Features  
– Voltage, Current and Temperature  
Fully Integrated High Accurate Clock  
•
•
Flexible Configuration for 2 to 4 Series Li-Ion  
and Li-Polymer Cells  
The Impedance Track technology continuously  
analyzes the battery impedance, resulting in superior  
gas-gauging accuracy. This enables remaining  
capacity to be calculated with discharge rate,  
temperature, and cell aging all accounted for during  
each stage of every cycle.  
•
Integrated Field Programmable FLASH  
Memory Eliminates the Need for External  
Configuration Memory  
•
•
Smart Battery Charger Control Feature  
Two 16-Bit Delta-Sigma Converter  
AVAILABLE OPTIONS  
PACKAGE  
– Accurate Voltage and Temperature  
Measurements  
TA  
20-PIN TSSOP (PW)  
Tube  
20-PIN TSSOP (PW)  
Tape & Reel  
– Integrating Coloumb Counter for Charge  
Flow  
–40°C to  
85°C  
bq20z70-V110PW(1)  
bq20z70-V110PWR(2)  
• Better Than 0.65 nVh of Resolution  
• Self-Calibrating  
•
•
Supports SHA-1 Authentication  
20-Pin TSSOP (PW)  
(1) A single tube quantity is 50 units.  
(2) A single reel quantity is 2000 units  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
IMPEDANCE TRACK is a trademark of Texas Instruments.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2006, Texas Instruments Incorporated  
bq20z70-V110  
www.ti.com  
SLUS742–OCTOBER 2006–REVISED OCTOBER 2006  
SYSTEM PARTITIONING DIAGRAM  
Pack +  
Fuse  
Therm  
Temperature  
Measurement  
& Protection  
LDO  
& Therm. Drive  
Fail Safe  
Protection  
N-CH FET  
Drive  
&
Reset  
Supply Voltage  
Reset  
Watchdog &  
Protection  
Timing  
Charging  
Algorithm  
32kHz Clock  
Generator  
Charge Pumps  
32KHz  
bq29330  
Validation &  
Control  
SMBus  
Registers  
SBS v1.1  
Data  
Alert  
System  
System  
I2C  
Interface  
Interface  
Overvoltage &  
Cell & Pack  
Voltage  
Measurement  
SHA-1  
Voltage Level  
Translator  
Undervoltage  
Authentication  
Protection  
Cell Balancing  
Overrcurrent  
Algorithm &  
Protection  
Impedance  
Track™ Gas  
Gauging  
Overcurrent &  
Short Circuit  
Protection  
Control  
bq20z70-V110  
bq29330  
bq294xy  
Pack -  
RSNS  
5mΩ – 20mΩ typ.  
TSSOP (PW)  
(TOP VIEW)  
XALERT  
TS2  
1
20  
19  
18  
17  
16  
15  
14  
13  
12  
11  
VCELL-  
VCELL+  
VCC  
2
TS1  
3
CLKOUT  
PRES  
PFIN  
4
VSS  
5
MRST  
SRN  
6
SAFE  
SMBD  
NC  
7
SRP  
8
VSS  
9
SCLK  
SDATA  
SMBC  
10  
2
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bq20z70-V110  
www.ti.com  
SLUS742–OCTOBER 2006–REVISED OCTOBER 2006  
TERMINAL FUNCTIONS  
TERMINAL  
I/O(1)  
DESCRIPTION  
NO.  
1
NAME  
XALERT  
TS2  
I
Alert interrupt input from bq29330. Connect directly to bq29330 XALERT pin  
2nd thermistor voltage input connection to monitor temperature  
1st thermistor voltage input connection to monitor temperature  
32.768kHz output for bq29330 watchdog. Connect directly to bq29330 WDI pin  
Active low input to sense system insertion  
2
I
I
3
TS1  
4
CLKOUT  
PRES  
PFIN  
O
5
I
6
I
Active low input to sense secondary protector output status  
7
SAFE  
SMBD  
NC  
O
Active high output to enforce additional level of safety, e.g. fuse blow  
SMBus data open drain bidirectional pin used for communication with bq20z70-V110  
Not used - leave floating  
8
I/OD  
–
9
10  
11  
12  
13  
14  
15  
SMBC  
SDATA  
SCLK  
VSS  
I/OD  
I/OD  
I/OD  
I/OD  
IA  
SMBus clock open drain bidirectional pin used for communication with bq20z70-V110  
Data transfer line from and to bq29330. Connect directly to SDATA pin of bq29330  
Data clock line to bq29330. Connect directly to SCLK pin of bq29330  
VSS  
SRP  
Connection for a small-value resistor to monitor the battery charge and discharge current flow  
Connection for a small-value resistor to monitor the battery charge and discharge current flow  
SRN  
IA  
Master reset input that forces the device into reset when held low. Connect directly to XRST pin of  
bq29330  
16  
MRST  
I
17  
18  
19  
20  
VSS  
VCC  
P
P
I
Negative supply. Both VSS needs to be connected together  
Positive supply  
VCELL+  
VCELL-  
Positive differential cell input. Connect directly to CELL+ pin of bq29330  
Negative differential cell input. Connect directly to CELL- pin of bq29330  
I
(1) I = Input, IA = Analog input, I/O = Input/output, I/OD = Input/Open-drain output, O = Output, OA = Analog output, P = Power  
ABSOLUTE MAXIMUM RATINGS  
over operating free-air temperature range (unless otherwise noted)(1)  
RANGE  
(2)  
VCC relative to VSS  
Supply voltage range on VCC pin  
–0.3 V to 2.75 V  
–0.3 V to 6.0 V  
(2)  
V(IOD) relative to VSS  
XALERT, PFIN, SAFE, SMBD, SMBC, SDATA, SCLK,  
TS2, TS1, CLKOUT, PRES, SRP, SRN, MRST, VCELL+,VCELL-  
Operating free-air temperature range  
(2)  
VI relative to VSS  
–0.3 V to VCC + 0.3 V  
–40°C to 85°C  
TA  
Tstg  
Storage temperature range  
–65°C to 150°C  
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings  
only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating  
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.  
(2) VSS refers to Voltage at VSS pin.  
ELECTRICAL CHARACTERISTICS  
VCC = 2.4 V to 2.6 V, TA = -40°C - 85°C (unless otherwise noted)  
PARAMETER  
TEST CONDITIONS  
VDDA and VDDD  
MIN  
TYP  
2.5  
MAX UNIT  
VDD Supply voltage  
2.4  
2.6  
V
No flash programming  
400(1)  
IDD Operating mode current  
µA  
bq20z70-V110 +  
bq29330  
475  
Sleep mode  
8(1)  
48  
I(SLP) Low-power storage mode current  
µA  
bq20z70-V110 +  
bq29330  
(1) This value does not include the bq29330  
3
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www.ti.com  
SLUS742–OCTOBER 2006–REVISED OCTOBER 2006  
ELECTRICAL CHARACTERISTICS (continued)  
VCC = 2.4 V to 2.6 V, TA = -40°C - 85°C (unless otherwise noted)  
PARAMETER  
TEST CONDITIONS  
MIN  
TYP  
0.1(1)  
0.2  
MAX UNIT  
Shutdown Mode  
I(SLP) Shutdown Current  
µA  
bq20z70-V110 +  
bq29330  
Output voltage low CLKOUT, SAFE, SMBD, SMBC, SDATA,  
SCLK  
IOL = 7 mA  
0.4  
V
VOL  
VOH Output high voltage CLKOUT, SAFE, SMBD,SMBC, SDATA,  
SCLK  
IOH = –0.5 mA  
VCC– 0.5  
2.0  
V
VIL  
VIH  
CIN  
Input voltage low PRES, PFIN, SMBD, SMBC, SDATA, MRST  
Input voltage high PRES, PFIN, SMBD, SMBC, SDATA, MRST  
Input capacitance  
0.8  
V
V
5
pF  
V(AI1) Input voltage range TS1, TS2, VCELL+, VCELL-  
V(AI2) Input voltage range SRP, SRN  
– 0.2  
– 0.2  
8
0.8 x VCC  
0.2  
V
Z(AI1) Input impedance TS1, TS2, VCELL+, VCELL -  
Z(AI2) Input impedance SRP, SRN  
0 V – 1 V  
0 V – 1 V  
MΩ  
MΩ  
2.5  
4
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bq20z70-V110  
www.ti.com  
SLUS742–OCTOBER 2006–REVISED OCTOBER 2006  
POWER-ON RESET  
VCC = 2.4 V to 2.6 V, TA = –40°C to 85°C (unless otherwise noted)  
PARAMETER  
TEST CONDITIONS  
MIN  
1.7  
50  
TYP  
1.8  
MAX UNIT  
VIT–  
Negative-going voltage input  
Power-on reset hysteresis  
1.9  
V
VHYS  
125  
200  
mV  
1.81  
1.8  
1.79  
1.78  
1.77  
1.76  
-40  
-20  
0
20  
40  
60  
80  
TA - Free-Air Temperature - °C  
INTEGRATING ADC (Coulomb Counter) CHARACTERISTICS  
VCC = 2.4 V to 2.6 V, TA = –40°C to 85°C (unless otherwise noted)  
PARAMETER  
TEST CONDITIONS  
MIN  
TYP  
MAX UNIT  
V(SR)  
Input voltage range, V(SRN) and V(SRP)  
V(SR) = V(SRP) – V(SRN)  
–0.20  
0.20  
V
µV  
%
V(SROS) Input offset  
TA =25°C to 85°C  
10  
±0.007 ±0.037  
INL  
Integral nonlinearity error  
OSCILLATOR  
VCC = 2.4 V to 2.6 V, TA = –40°C to 85°C (unless otherwise noted)  
PARAMETER  
TEST CONDITIONS  
MIN  
TYP  
MAX UNIT  
HIGH FREQUENCY OSCILLATOR  
f (OSC)  
f (EIO)  
f (sxo)  
Operating frequency  
4.194  
0.25%  
0.25%  
2.5  
MHz  
3%  
-3%  
-2%  
(1)(2)  
Frequency error  
T A = 20°C to 70°C  
2%  
(3)  
Start-up time  
5
ms  
LOW FREQUENCY OSCILLATOR  
f (LOSC) Operating frequency  
f (LEIO)  
32.768  
0.25%  
0.25%  
kHz  
-2.5%  
-1.5%  
2.5%  
1.5%  
500  
(2)(4)  
Frequency error  
T A = 20°C to 70°C  
(5)  
f (Lsxo)  
Start-up time  
µs  
(1) The frequency error is measured from 4.194 MHz.  
(2) The frequency drift is included and measured f rom the trimmed frequency at V CC = 2.5 V, T A = 25°C.  
(3) The start-up time is defined as the time it takes for the oscillator output frequency to be within 1% of the specified frequency.  
(4) The frequency error is measured from 32.768 kHz.  
(5) The start-up time is defined as the time it takes for the oscillator output frequency to be ±3%.  
5
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www.ti.com  
SLUS742–OCTOBER 2006–REVISED OCTOBER 2006  
DATA FLASH MEMORY CHARACTERISTICS  
VCC = 2.4 V to 2.6 V, TA = –40°C to 85°C (unless otherwise noted)  
PARAMETER  
TEST CONDITIONS  
MIN  
10  
TYP  
MAX UNIT  
Years  
(1)  
tDR  
Data retention  
See  
See  
See  
See  
(1)  
(1)  
(1)  
Flash programming write-cycles  
20,000  
Cycles  
t(WORDPROG) Word programming time  
2
ms  
I(DDPROG)  
Flash-write and erase supply current  
5
10  
mA  
(1) Assured by design. Not production tested  
6
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bq20z70-V110  
www.ti.com  
SLUS742–OCTOBER 2006–REVISED OCTOBER 2006  
SMBus TIMING SPECIFICATIONS  
VCC = 2.4 V to 2.6 V, TA = –40°C to 85°C (unless otherwise noted)  
PARAMETER  
TEST CONDITIONS  
MIN  
TYP  
MAX UNIT  
fSMB  
SMBus operating frequency  
SMBus master clock frequency  
Bus free time between start and stop  
Hold time after (repeated) start  
Repeated start setup time  
Stop setup time  
Slave mode, SMBC 50% duty cycle  
10  
100  
kHz  
fMAS  
Master mode, no clock low slave extend  
51.2  
tBUF  
4.7  
4
tHD:STA  
tSU:STA  
tSU:STO  
µs  
4.7  
4
Receive mode  
Transmit mode  
0
tHD:DAT  
Data hold time  
300  
250  
25  
4.7  
4
ns  
tSU:DAT  
tTIMEOUT  
tLOW  
Data setup time  
Error signal/detect  
Clock low period  
Clock high period  
(1)  
See  
35  
ms  
µs  
(2)  
tHIGH  
See  
50  
25  
(3)  
tLOW:SEXT Cumulative clock low slave extend time  
tLOW:MEXT Cumulative clock low master extend time  
See  
ms  
ns  
(4)  
See  
10  
tF  
Clock/data fall time  
Clock/data rise time  
(VILMAX– 0.15 V) to (VIHMIN + 0.15 V)  
0.9 VCC to (VILMAX – 0.15 V)  
300  
1000  
tR  
(1) The bq20z70-V110 times out when any clock low exceeds tTIMEOUT  
.
(2) tHIGH:MAX. is minimum bus idle time. SMBC = 1 for t > 50 µs causes reset of any transaction involving the bq20z70-V110 that is in  
progress.  
(3) tLOW:SEXT is the cumulative time a slave device is allowed to extend the clock cycles in one message from initial start to the stop.  
(4) tLOW:MEXT is the cumulative time a master device is allowed to extend the clock cycles in one message from initial start to the stop.  
SMBus TIMING DIAGRAM  
7
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SLUS742–OCTOBER 2006–REVISED OCTOBER 2006  
FEATURE SET  
Primary (1st Level) Safety Features  
The bq20z70-V110 supports a wide range of battery and system protection features that can easily be  
configured. The primary safety features include:  
•
•
•
•
•
Cell over/under voltage protection  
Charge and Discharge over current  
Short Circut  
Charge and Discharge Over temperature  
AFE Watchdog  
Secondary (2nd Level) Safety Features  
The secondary safety features of the bq20z70-V110 can be used to indicate more serious faults via the SAFE  
(pin 7). This pin can be used to blow an in-line fuse to permanently disable the battery pack from charging or  
discharging. The secondary safety protection features include:  
•
•
•
•
•
•
Safety over voltage  
Safety over current in Charge and Discharge  
Safety over temperature in Charge and Discharge  
Charge FET and 0 Volt Charge FET fault  
Discharge FET fault  
AFE communication fault  
Charge Control Features  
The bq20z70-V110 charge control features include:  
•
Reports the appropriate charging current needed for constant current charging and the appropriate charging  
voltage needed for constant voltage charging to a smart charger using SMBus broadcasts.  
•
Determines the chemical state of charge of each battery cell using Impedance Track™ and can reduce the  
charge difference of the battery cells in fully charged state of the battery pack gradually using cell balancing  
algorithm during charging. This prevents fully charged cells from overcharging and causing excessive  
degradation and also increases the usable pack energy by preventing premature charge termination  
•
•
•
•
Supports pre-charging/zero-volt charging  
Support fast charging  
Supports charge inhibit and charge suspend if battery pack temperature is out of temperature range  
Reports charging fault and also indicate charge status via charge and discharge alarms.  
Gas Gauging  
The bq20z70-V110 uses the Impedance Track™ Technology to measure and calculate the available charge in  
battery cells. The achievable accuracy is better than 1% error over the lifetime of the battery and there is no full  
charge discharge learning cycle required.  
See Theory and Implementation of Impedance Track Battery Fuel-Gauging Algorithm application note  
(SLUA364) for further details.  
Authentication  
The bq20z70-V110 supports authentication by the host using SHA-1.  
Power Modes  
The bq20z70-V110 supports 3 different power modes to reduce power consumption:  
•
In Normal Mode, the bq20z70-V110 performs measurements, calculations, protection decisions and data  
updates in 1 second intervals. Between these intervals, the bq20z70-V110 is in a reduced power stage.  
8
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SLUS742–OCTOBER 2006–REVISED OCTOBER 2006  
FEATURE SET (continued)  
•
•
In Sleep Mode, the bq20z70-V110 performs measurements, calculations, protection decisions and data  
update in adjustable time intervals. Between these intervals, the bq20z70-V110 is in a reduced power stage.  
The bq20z70-V110 has a wake function that enables exit from Sleep mode, when current flow or failure is  
detected.  
In Shutdown Mode the bq20z70-V110 is completely disabled.  
CONFIGURATION  
Oscillator Function  
The bq20z70-V110 fully integrates the system oscillators. Therefore the bq20z70-V110 requires no external  
components for this feature.  
System Present Operation  
The bq20z70-V110 pulls the PU pin high periodically (1 s). Connect this pin to the PRES pin of the  
bq20z70-V110 via a resistor of approximately 5 kΩ. The bq20z70-V110 measures the PRES input during the  
PU-active period to determine its state. If PRES input is pulled to ground by external system, the bq20z70-V110  
detects this as system present.  
BATTERY PARAMETER MEASUREMENTS  
The bq20z70-V110 uses an integrating delta-sigma analog-to-digital converter (ADC) for current measurement,  
and a second delta-sigma ADC for individual cell and battery voltage, and temperature measurement.  
Charge and Discharge Counting  
The integrating delta-sigma ADC measures the charge/discharge flow of the battery by measuring the voltage  
drop across a small-value sense resistor between the SR1 and SR2 pins. The integrating ADC measures bipolar  
signals from -0.25 V to 0.25 V. The bq20z70-V110 detects charge activity when VSR = V(SR1)-V(SR2)is positive  
and discharge activity when VSR = V(SR1)-V(SR2) is negative. The bq20z70-V110 continuously integrates the  
signal over time, using an internal counter. The fundamental rate of the counter is 0.65 nVh.  
Voltage  
The bq20z70-V110 updates the individual series cell voltages through the bq29330 at one second intervals. The  
bq20z70-V110 configures the bq29330 to connect the selected cell, cell offset, or bq29330 VREF to the CELL  
pin of the bq29330, which is required to be connected to VIN of the bq20z70-V110. The internal ADC of the  
bq20z70-V110 measures the voltage, scales and calibrates it appropriately. This data is also used to calculate  
the impedance of the cell for the Impedance Track™ gas-gauging.  
Current  
The bq20z70-V110 uses the SRP and SRN inputs to measure and calculate the battery charge and discharge  
current using a 5 mΩ to 20 mΩ typ. sense resistor.  
Auto Calibration  
The bq20z70-V110 provides an auto-calibration feature to cancel the voltage offset error across SRN and SRP  
for maximum charge measurement accuracy. The bq20z70-V110 performs auto-calibration when the SMBus  
lines stay low continuously for a minimum of 5 s.  
Temperature  
The bq20z70-V110 has an internal temperature sensor and 2 external temperature sensor inputs TS1 and TS2  
used in conjunction with two identical NTC thermistors (default are Semitec 103AT) to sense the battery  
enviromental temperature. The bq20z70-V110 can be configured to use internal or external temperature  
sensors.  
9
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SLUS742–OCTOBER 2006–REVISED OCTOBER 2006  
FEATURE SET (continued)  
COMMUNICATIONS  
The bq20z70-V110 uses SMBus v1.1 with Master Mode and package error checking (PEC) options per the SBS  
specification.  
SMBus On and Off State  
The bq20z70-V110 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.  
10  
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SLUS742–OCTOBER 2006–REVISED OCTOBER 2006  
FEATURE SET (continued)  
Table 1. SBS COMMANDS  
SBS and Dataflash Values  
SBS  
Cmd  
Mode Name  
Format  
Size in Min  
Max  
Value  
Default  
Value  
Unit  
Bytes  
Value  
0x00  
0x01  
R/W  
R/W  
ManufacturerAccess  
hex  
2
2
0x0000  
0
0xffff  
—
—
RemainingCapacityAlarm  
unsigned int  
65535  
mAh or  
10mWh  
0x02  
0x03  
0x04  
0x05  
0x06  
0x07  
0x08  
0x09  
0x0a  
0x0b  
0x0c  
0x0d  
0x0e  
0x0f  
R/W  
R/W  
R/W  
R
RemainingTimeAlarm  
BatteryMode  
unsigned int  
hex  
2
2
2
2
2
2
2
2
2
2
1
1
1
2
0
65535  
0xffff  
—
—
—
—
—
—
—
—
—
—
—
—
—
—
min  
0x0000  
AtRate  
signed int  
-32768  
32767  
65535  
65535  
65535  
65535  
20000  
32767  
32767  
100  
mA or 10mW  
AtRateTimeToFull  
AtRateTimeToEmpty  
AtRateOK  
unsigned int  
unsigned int  
unsigned int  
unsigned int  
unsigned int  
signed int  
0
min  
min  
R
0
R
0
R
Temperature  
0
0.1°K  
mV  
mA  
mA  
%
R
Voltage  
0
R
Current  
-32768  
R
AverageCurrent  
MaxError  
signed int  
-32768  
R
unsigned int  
unsigned int  
unsigned int  
unsigned int  
0
0
0
0
R
RelativeStateOfCharge  
AbsoluteStateOfCharge  
RemainingCapacity  
100  
%
R
100  
%
R/W  
65535  
mAh or  
10mWh  
0x10  
R
FullChargeCapacity  
unsigned int  
2
0
65535  
—
mAh or  
10mWh  
0x11  
0x12  
0x13  
0x14  
0x15  
0x16  
0x17  
0x18  
R
RunTimeToEmpty  
AverageTimeToEmpty  
AverageTimeToFull  
ChargingCurrent  
ChargingVoltage  
BatteryStatus  
unsigned int  
unsigned int  
unsigned int  
unsigned int  
unsigned int  
unsigned int  
unsigned int  
unsigned int  
2
2
2
2
2
2
2
2
0
65535  
65535  
65535  
65535  
65535  
0xffff  
—
—
—
—
—
—
—
—
min  
min  
min  
mA  
mV  
R
0
R
0
R
0
R
0
R
0x0000  
R/W  
R/W  
CycleCount  
0
0
65535  
65535  
DesignCapacity  
mAh or  
10mWh  
0x19  
0x1a  
0x1b  
0x1c  
0x20  
R/W  
R/W  
R/W  
R/W  
R/W  
DesignVoltage  
unsigned int  
unsigned int  
unsigned int  
hex  
2
7000  
0x0000  
0
16000  
0xffff  
65535  
0xffff  
—
14400  
0x0031  
0
mV  
SpecificationInfo  
ManufactureDate  
SerialNumber  
2
2
2
0x0000  
—
0x0001  
ManufacturerName  
String  
11+1  
Texas  
Instruments  
ASCII  
ASCII  
0x21  
R/W  
DeviceName  
String  
7+1  
—
—
bq20z70-  
V110  
0x22  
0x23  
0x2f  
R/W  
R
DeviceChemistry  
ManufacturerData  
Authenticate  
String  
4+1  
14+1  
20+1  
2
—
—
—
0
—
LION  
—
ASCII  
ASCII  
ASCII  
mV  
String  
—
R/W  
R
String  
—
—
0x3c  
0x3d  
0x3e  
0x3f  
CellVoltage4  
unsigned int  
unsigned int  
unsigned int  
unsigned int  
65535  
65535  
65535  
65535  
—
R
CellVoltage3  
2
0
—
mV  
R
CellVoltage2  
2
0
—
mV  
R
CellVoltage1  
2
0
—
mV  
11  
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SLUS742–OCTOBER 2006–REVISED OCTOBER 2006  
Table 2. EXTENDED SBS COMMANDS  
SBS  
Cmd  
Mode  
Name  
Format  
Size in  
Bytes  
Min Value  
Max Value  
Default  
Value  
Unit  
0x45  
0x46  
0x4f  
R
AFEData  
String  
hex  
11+1  
1
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
ASCII  
R/W  
R
FETControl  
0x00  
0xff  
StateOfHealth  
unsigned int  
hex  
1
0
100  
%
0x51  
0x53  
0x54  
0x55  
0x57  
0x5a  
0x5d  
0x60  
0x61  
0x62  
0x63  
0x64  
0x65  
0x66  
0x70  
0x71  
0x77  
0x78  
0x79  
0x7a  
0x7b  
0x7c  
0x7d  
0x7e  
0x7f  
R
SafetyStatus  
2
0x0000  
0xffff  
0xffff  
0xffff  
0xffff  
0xffff  
65535  
65535  
0xffffffff  
0xffffffff  
0xffffffff  
0xffffffff  
0xffffffff  
0xffffffff  
0xffffffff  
—
R
PFStatus  
hex  
2
0x0000  
R
OperationStatus  
ChargingStatus  
ResetData  
hex  
2
0x0000  
R
hex  
2
0x0000  
R
hex  
2
0x0000  
R
PackVoltage  
unsigned int  
unsigned int  
hex  
2
0
mV  
mV  
R
AverageVoltage  
UnSealKey  
2
0
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
4
0x00000000  
FullAccessKey  
hex  
4
0x00000000  
PFKey  
hex  
4
0x00000000  
AuthenKey3  
hex  
4
0x00000000  
AuthenKey2  
hex  
4
0x00000000  
AuthenKey1  
hex  
4
0x00000000  
AuthenKey0  
hex  
4
0x00000000  
ManufacturerInfo  
SenseResistor  
String  
unsigned int  
hex  
8+1  
2
—
0
65535  
0xffff  
—
µΩ  
DataFlashSubClassID  
DataFlashSubClassPage1  
DataFlashSubClassPage2  
DataFlashSubClassPage3  
DataFlashSubClassPage4  
DataFlashSubClassPage5  
DataFlashSubClassPage6  
DataFlashSubClassPage7  
DataFlashSubClassPage8  
2
0x0000  
—
hex  
32  
32  
32  
32  
32  
32  
32  
32  
hex  
—
—
hex  
—
—
hex  
—
—
hex  
—
—
hex  
—
—
hex  
—
—
hex  
—
—
NOTE:  
All reserved bits in Data Flash should be written to zero.  
Table 3. DATAFLASH VALUES  
Class  
Subclass  
ID  
Subclass  
Offset  
Name  
Data  
Type  
Min  
Value  
Max  
Value  
Default  
Value  
Units  
1st Level Safety  
1st Level Safety  
1st Level Safety  
1st Level Safety  
1st Level Safety  
1st Level Safety  
1st Level Safety  
1st Level Safety  
1st Level Safety  
1st Level Safety  
1st Level Safety  
1st Level Safety  
1st Level Safety  
1st Level Safety  
0
0
0
0
1
1
1
1
1
1
1
2
2
2
Voltage  
0
COV Threshold  
COV Recovery  
I2  
3700  
5000  
4400  
3500  
3600  
20000  
20000  
240  
4300  
3900  
2200  
3000  
6000  
6000  
8
mV  
mV  
mV  
mV  
mA  
mA  
Sec  
Voltage  
3
I2  
0
Voltage  
12  
15  
0
CUV Threshold  
CUV Recovery  
I2  
0
Voltage  
I2  
0
Current  
OC (1st Tier) Chg  
OC (1st Tier) Dsg  
Current Recovery Time  
AFE OC Dsg  
I2  
0
Current  
5
I2  
0
Current  
16  
17  
18  
21  
22  
0
U1  
H1  
H1  
H1  
H1  
I2  
0
Current  
0x00  
0x00  
0x00  
0x00  
0
0x1f  
0x12  
0x0f  
0x77  
0x77  
550  
Current  
AFE OC Dsg Time  
AFE SC Chg Cfg  
AFE SC Dsg Cfg  
Over Temp Chg  
OT Chg Recovery  
Over Temp Dsg  
0xff  
Current  
0xff  
Current  
0xff  
Temperature  
Temperature  
Temperature  
1200  
1200  
1200  
0.1°C  
0.1°C  
0.1°C  
3
I2  
0
500  
5
I2  
0
600  
12  
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SLUS742–OCTOBER 2006–REVISED OCTOBER 2006  
Table 3. DATAFLASH VALUES (continued)  
Class  
Subclass  
ID  
Subclass  
Offset  
Name  
Data  
Type  
Min  
Value  
Max  
Value  
Default  
Value  
Units  
1st Level Safety  
2nd Level Safety  
2nd Level Safety  
2nd Level Safety  
2nd Level Safety  
2nd Level Safety  
2nd Level Safety  
2nd Level Safety  
2nd Level Safety  
2nd Level Safety  
2nd Level Safety  
2nd Level Safety  
2nd Level Safety  
2nd Level Safety  
2nd Level Safety  
2nd Level Safety  
2nd Level Safety  
2nd Level Safety  
Charge Control  
Charge Control  
Charge Control  
Charge Control  
Charge Control  
Charge Control  
Charge Control  
Charge Control  
Charge Control  
Charge Control  
Charge Control  
Charge Control  
Charge Control  
Charge Control  
Charge Control  
Charge Control  
Charge Control  
SBS Configuration  
SBS Configuration  
SBS Configuration  
SBS Configuration  
SBS Configuration  
SBS Configuration  
SBS Configuration  
2
Temperature  
Voltage  
8
OT Dsg Recovery  
SOV Threshold  
SOV Time  
I2  
0
1200  
20000  
240  
550  
18000  
0
0.1°C  
mV  
16  
16  
16  
16  
16  
16  
16  
17  
17  
17  
17  
18  
18  
18  
18  
19  
20  
32  
32  
33  
33  
33  
33  
34  
34  
34  
34  
36  
36  
36  
36  
37  
38  
38  
48  
48  
48  
48  
48  
48  
48  
0
I2  
0
Voltage  
2
U1  
I1  
0
Sec  
mA  
Voltage  
3
Cell Imbalance Current  
Cell Imbalance Fail Voltage  
Cell Imbalance Time  
Battery Rest Time  
PFIN Detect Time  
SOC Chg  
0
200  
5
Voltage  
4
I2  
0
5000  
240  
1000  
0
mV  
Voltage  
6
U1  
U2  
U1  
I2  
0
Sec  
Sec  
Sec  
mA  
Voltage  
7
0
65535  
240  
1800  
0
Voltage  
9
0
Current  
0
0
30000  
240  
10000  
0
Current  
2
SOC Chg Time  
SOC Dsg  
U1  
I2  
0
Sec  
mA  
Current  
3
0
30000  
240  
10000  
0
Current  
5
SOC Dsg Time  
SOT Chg  
U1  
I2  
0
Sec  
0.1°C  
Sec  
0.1°C  
Sec  
Sec  
Temperature  
Temperature  
Temperature  
Temperature  
FET Verification  
AFE Verification  
Charge Inhibit Cfg  
Charge Inhibit Cfg  
Pre-Charge Cfg  
Pre-Charge Cfg  
Pre-Charge Cfg  
Pre-Charge Cfg  
Fast Charge Cfg  
Fast Charge Cfg  
Fast Charge Cfg  
Fast Charge Cfg  
Termination Cfg.  
Termination Cfg.  
Termination Cfg.  
Termination Cfg.  
Cell Balancing Cfg  
Charging Faults  
Charging Faults  
Data  
0
0
1200  
240  
650  
0
2
SOT Chg Time  
SOT Dsg  
U1  
I2  
0
3
0
1200  
240  
750  
0
5
SOT Dsg Time  
FET Fail Time  
U1  
U1  
U1  
I2  
0
2
0
240  
0
1
AFE Fail Limit  
0
255  
10  
0
Chg Inhibit Temp Low  
Chg Inhibit Temp High  
Pre-chg Current  
Pre-chg Temp  
-400  
1200  
1200  
2000  
1200  
20000  
20000  
10000  
20000  
1200  
1200  
1000  
1000  
100  
0
0.1°C  
0.1°C  
mA  
2
I2  
-400  
450  
250  
120  
3000  
3100  
4000  
16800  
-50  
0
I2  
0
2
I2  
-400  
0.1°C  
mV  
4
Pre-chg Voltage  
Recovery Voltage  
Fast Charge Current  
Charging Voltage  
Suspend Low Temp  
Suspend High Temp  
Taper Current  
I2  
0
6
I2  
0
mV  
0
I2  
0
mA  
2
I2  
0
mV  
6
I2  
-400  
0.1°C  
0.1°C  
mA  
8
I2  
-400  
550  
250  
300  
95  
2
I2  
0
6
Taper Voltage  
I2  
0
mV  
10  
12  
0
TCA Clear %  
I1  
-1  
%
FC Clear %  
I1  
-1  
100  
98  
%
Min Cell Deviation  
Over Charge Capacity  
Charge Fault Cfg  
Rem Cap Alarm  
Rem Energy Alarm  
Rem Time Alarm  
Init Battery Mode  
Design Voltage  
Spec Info  
U2  
I2  
0
65535  
4000  
0x02  
700  
1750  
300  
0x00  
300  
432  
10  
Sec/mAh  
mAh  
13  
21  
0
0
H1  
I2  
0x00  
0
mAh  
Data  
2
I2  
0
1000  
30  
10mWh  
min  
Data  
4
U2  
H2  
I2  
0
Data  
6
0x0000  
7000  
0x0000  
0
0xffff  
18000  
0xffff  
65535  
0x0081  
14400  
0x0031  
0
Data  
8
mV  
Data  
10  
12  
H2  
U2  
Data  
Manuf Date  
Day +  
Mo*32 +  
(Yr  
-
1980)*256  
SBS Configuration  
SBS Configuration  
SBS Configuration  
SBS Configuration  
SBS Configuration  
SBS Configuration  
48  
48  
48  
48  
48  
48  
Data  
Data  
Data  
Data  
Data  
Data  
14  
16  
18  
21  
22  
24  
Ser. Num.  
H2  
U2  
I2  
0x0000  
0xffff  
0x0001  
0
Cycle Count  
0
65535  
32767  
100  
CC Threshold  
CF MaxError Limit  
Design Capacity  
Design Energy  
100  
0
4400  
100  
mAh  
%
U1  
I2  
0
65535  
65535  
4400  
6336  
mAh  
0.1Wh  
I2  
0
13  
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bq20z70-V110  
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SLUS742–OCTOBER 2006–REVISED OCTOBER 2006  
Table 3. DATAFLASH VALUES (continued)  
Class  
Subclass  
ID  
Subclass  
Data  
Offset  
Name  
Data  
Type  
Min  
Value  
Max  
Value  
Default  
Value  
Units  
ASCII  
ASCII  
SBS Configuration  
SBS Configuration  
48  
26  
Manuf Name  
Device Name  
S12  
-
-
-
-
Texas  
Inst.  
48  
Data  
38  
S8  
bq20z70-  
V110  
SBS Configuration  
SBS Configuration  
SBS Configuration  
SBS Configuration  
SBS Configuration  
SBS Configuration  
SBS Configuration  
SBS Configuration  
System Data  
48  
49  
49  
49  
49  
49  
49  
49  
58  
Data  
46  
0
Device Chemistry  
TDA Set %  
S5  
I1  
-
-
LION  
ASCII  
%
Configuration  
Configuration  
Configuration  
Configuration  
Configuration  
Configuration  
Configuration  
Manufacturer Info  
-1  
-1  
-1  
-1  
0
100  
100  
100  
100  
16800  
240  
16800  
6
1
TDA Clear %  
I1  
8
%
2
FD Set %  
I1  
2
%
3
FD Clear %  
I1  
5
%
4
TDA Set Volt Threshold  
TDA Set Volt Time  
TDA Clear Volt  
Manuf. Info  
I2  
5000  
0
mV  
Sec  
mV  
6
U1  
I2  
0
7
0
5500  
0
S9  
01234567 ASCII  
89abcdef0  
123  
Configuration  
Configuration  
Configuration  
Configuration  
Configuration  
Power  
64  
64  
64  
64  
64  
68  
68  
68  
68  
80  
80  
80  
80  
80  
80  
80  
81  
Registers  
Registers  
Registers  
Registers  
Registers  
Power  
0
Operation Cfg A  
Operation Cfg B  
Operation Cfg C  
Permanent Fail Cfg  
Non-Removable Cfg  
Flash Update OK Voltage  
Shutdown Voltage  
Charger Present  
Wake Current Reg  
Load Select  
H2  
H2  
H2  
H2  
H2  
I2  
0x0000  
0x0000  
0x0000  
0x0000  
0x0000  
6000  
5000  
0
0x033b  
0x3eff  
0x0001  
0x4dff  
0x3027  
20000  
20000  
23000  
0xff  
0x033b  
0x2440  
0x0000  
0x0000  
0x0000  
2
4
6
8
0
7500  
7000  
3000  
0x00  
3
mV  
mV  
mV  
Power  
Power  
2
I2  
Power  
Power  
5
I2  
Power  
Power  
16  
0
H1  
U1  
U1  
I2  
0x00  
0
Gas Gauging  
Gas Gauging  
Gas Gauging  
Gas Gauging  
Gas Gauging  
Gas Gauging  
Gas Gauging  
Gas Gauging  
IT Cfg  
255  
IT Cfg  
1
Load Mode  
0
255  
0
IT Cfg  
45  
60  
62  
64  
66  
0
Term Voltage  
-32768  
-9000  
-14000  
0
32767  
-2000  
-3000  
9000  
12000  
0
mV  
IT Cfg  
User Rate-mA  
I2  
mA  
IT Cfg  
User Rate-mW  
I2  
0
0.1W  
mAh  
0.1Wh  
mA  
IT Cfg  
Reserve Cap-mAh  
Reserve Cap-mWh  
Dsg Current Threshold  
I2  
0
IT Cfg  
I2  
0
14000  
2000  
0
Current  
I2  
0
50  
Thresholds  
Gas Gauging  
Gas Gauging  
81  
81  
Current  
Thresholds  
2
4
Chg Current Threshold  
Quit Current  
I2  
I2  
0
0
2000  
1000  
25  
10  
mA  
mA  
Current  
Thresholds  
Gas Gauging  
Gas Gauging  
Gas Gauging  
Gas Gauging  
Gas Gauging  
Gas Gauging  
Gas Gauging  
Ra Table  
82  
82  
82  
82  
82  
82  
82  
88  
88  
88  
88  
88  
88  
88  
88  
88  
State  
State  
State  
State  
State  
State  
State  
R_a0  
R_a0  
R_a0  
R_a0  
R_a0  
R_a0  
R_a0  
R_a0  
R_a0  
0
Qmax Cell0  
Qmax Cell1  
Qmax Cell2  
Qmax Cell3  
Qmax Pack  
Update Status  
Delta Voltage  
Cell0 R_a flag  
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  
I2  
I2  
I2  
I2  
I2  
H1  
I2  
H2  
I2  
I2  
I2  
I2  
I2  
I2  
I2  
I2  
0
65535  
65535  
65535  
65535  
65535  
0x03  
4400  
4400  
4400  
4400  
4400  
0x00  
0
mAh  
mAh  
mAh  
mAh  
mAh  
2
0
4
0
6
0
8
0
12  
25  
0
0x00  
-32768  
32767  
0xffff  
mV  
0x0000  
0xff55  
160  
Ra Table  
2
0
0
0
0
0
0
0
0
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
Ra Table  
4
166  
Ra Table  
6
153  
Ra Table  
8
151  
Ra Table  
10  
12  
14  
16  
145  
Ra Table  
152  
Ra Table  
176  
Ra Table  
204  
14  
Submit Documentation Feedback  
bq20z70-V110  
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SLUS742–OCTOBER 2006–REVISED OCTOBER 2006  
Table 3. DATAFLASH VALUES (continued)  
Class  
Subclass  
ID  
Subclass  
Offset  
Name  
Data  
Type  
Min  
Value  
Max  
Value  
Default  
Value  
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  
88  
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  
R_a0  
R_a0  
R_a0  
R_a0  
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  
18  
20  
22  
24  
26  
28  
30  
0
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  
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  
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  
I2  
I2  
I2  
I2  
I2  
I2  
I2  
I2  
I2  
I2  
0
32767  
32767  
32767  
32767  
32767  
32767  
32767  
0xffff  
222  
254  
315  
437  
651  
1001  
1458  
0xff55  
160  
166  
153  
151  
145  
152  
176  
204  
222  
254  
315  
437  
651  
1001  
1458  
0xff55  
160  
166  
153  
151  
145  
152  
176  
204  
222  
254  
315  
437  
651  
1001  
1458  
0xff55  
160  
166  
153  
151  
145  
152  
176  
204  
222  
254  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
0
0
0
0
0
0
0x0000  
2
0
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
0xffff  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
4
0
6
0
8
0
10  
12  
14  
16  
18  
20  
22  
24  
26  
28  
30  
0
0
0
0
0
0
0
0
0
0
0
0
0x0000  
2
0
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
0xffff  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
4
0
6
0
8
0
10  
12  
14  
16  
18  
20  
22  
24  
26  
28  
30  
0
0
0
0
0
0
0
0
0
0
0
0
0x0000  
2
0
0
0
0
0
0
0
0
0
0
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
4
6
8
10  
12  
14  
16  
18  
20  
15  
Submit Documentation Feedback  
bq20z70-V110  
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SLUS742–OCTOBER 2006–REVISED OCTOBER 2006  
Table 3. DATAFLASH VALUES (continued)  
Class  
Subclass  
ID  
Subclass  
Offset  
Name  
Data  
Type  
Min  
Value  
Max  
Value  
Default  
Units  
Value  
315  
437  
651  
1001  
1458  
0xffff  
160  
166  
153  
151  
145  
152  
176  
204  
222  
254  
315  
437  
651  
1001  
1458  
0xffff  
160  
166  
153  
151  
145  
152  
176  
204  
222  
254  
315  
437  
651  
1001  
1458  
0xffff  
160  
166  
153  
151  
145  
152  
176  
204  
222  
254  
315  
437  
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  
91  
91  
91  
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  
R_a3  
22  
24  
26  
28  
30  
0
Cell3 R_a 10  
Cell3 R_a 11  
Cell3 R_a 12  
Cell3 R_a 13  
Cell3 R_a 14  
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  
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  
I2  
I2  
I2  
I2  
I2  
I2  
I2  
I2  
I2  
I2  
I2  
I2  
0
32767  
32767  
32767  
32767  
32767  
0xffff  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
R_a3  
0
R_a3  
0
R_a3  
0
R_a3  
0
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  
0x0000  
2
0
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
0xffff  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
4
0
6
0
8
0
10  
12  
14  
16  
18  
20  
22  
24  
26  
28  
30  
0
0
0
0
0
0
0
0
0
0
0
0
0x0000  
2
0
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
0xffff  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
4
0
6
0
8
0
10  
12  
14  
16  
18  
20  
22  
24  
26  
28  
30  
0
0
0
0
0
0
0
0
0
0
0
0
0x0000  
2
0
0
0
0
0
0
0
0
0
0
0
0
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
4
6
8
10  
12  
14  
16  
18  
20  
22  
24  
16  
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bq20z70-V110  
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SLUS742–OCTOBER 2006–REVISED OCTOBER 2006  
Table 3. DATAFLASH VALUES (continued)  
Class  
Subclass  
ID  
Subclass  
Offset  
Name  
Data  
Type  
Min  
Value  
Max  
Value  
Default  
Value  
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  
PF Status  
94  
94  
94  
95  
95  
95  
95  
95  
95  
95  
95  
95  
95  
95  
95  
95  
95  
95  
95  
96  
R_a2x  
R_a2x  
R_a2x  
R_a3x  
R_a3x  
R_a3x  
R_a3x  
R_a3x  
R_a3x  
R_a3x  
R_a3x  
R_a3x  
R_a3x  
R_a3x  
R_a3x  
R_a3x  
R_a3x  
R_a3x  
R_a3x  
26  
28  
30  
0
xCell2 R_a 12  
xCell2 R_a 13  
xCell2 R_a 14  
xCell3 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  
PF Flags 1  
I2  
I2  
I2  
H2  
I2  
I2  
I2  
I2  
I2  
I2  
I2  
I2  
I2  
I2  
I2  
I2  
I2  
I2  
I2  
H2  
0
32767  
32767  
32767  
0xffff  
651  
2^-10ohm  
2^-10ohm  
2^-10ohm  
0
1001  
1458  
0xffff  
160  
0
0x0000  
2
0
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
0x4dff  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
2^-10ohm  
4
0
166  
6
0
153  
8
0
151  
10  
12  
14  
16  
18  
20  
22  
24  
26  
28  
30  
0
0
145  
0
152  
0
176  
0
204  
0
222  
0
254  
0
315  
0
437  
0
651  
0
1001  
1458  
0x0000  
0
Device Status  
Data  
0x0000  
PF Status  
96  
Device Status  
Data  
28  
PF Flags 2  
H2  
0x0000  
0x0dff  
0x0000  
Calibration  
Calibration  
104  
104  
Data  
Data  
0
4
CC Gain  
CC Delta  
F4  
F4  
0.1  
4
0.9419  
29826  
1193046 280932.62  
5
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  
104  
104  
104  
104  
105  
105  
105  
105  
105  
105  
105  
105  
105  
106  
106  
106  
106  
106  
106  
106  
106  
106  
Data  
8
Ref Voltage  
I2  
0
65536  
65536  
32767  
32767  
127  
24500  
22050  
-1667  
0
50uV  
Data  
12  
14  
16  
18  
19  
20  
0
AFE Pack Gain  
CC Offset  
I2  
0
µV/cnt  
Data  
I2  
-32768  
-32768  
-128  
-128  
-128  
0
Data  
Board Offset  
Int Temp Offset  
Ext1 Temp Offset  
Ext2 Temp Offset  
CC Current  
I2  
Data  
I1  
0
Data  
I1  
127  
0
Data  
I1  
127  
0
Config  
I2  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
32767  
3000  
16800  
2980  
250  
32  
mA  
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
mV  
Config  
4
I2  
0
0.1K  
mSec  
mSec  
mSec  
mSec  
mSec  
Sec/128  
Sec  
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  
-32768  
-32768  
-32768  
-32768  
-32768  
-32768  
-32768  
-32768  
-32768  
2
Ext Coef 2  
I2  
Sec  
4
Ext Coef 3  
I2  
Sec  
6
Ext Coef 4  
I2  
Sec  
8
Ext Min AD  
I2  
Sec  
10  
12  
14  
16  
Ext Max Temp  
Int Coef 1  
I2  
4012  
0
Sec  
I2  
Sec  
Int Coef 2  
I2  
0
Sec  
Int Coef 3  
I2  
-11136  
Sec  
17  
Submit Documentation Feedback  
bq20z70-V110  
www.ti.com  
SLUS742–OCTOBER 2006–REVISED OCTOBER 2006  
Table 3. DATAFLASH VALUES (continued)  
Class  
Subclass  
ID  
Subclass  
Offset  
Name  
Data  
Type  
Min  
Value  
Max  
Value  
Default  
Units  
Value  
5754  
0
Calibration  
Calibration  
Calibration  
Calibration  
Calibration  
Calibration  
106  
106  
106  
107  
107  
107  
Temp Model  
Temp Model  
Temp Model  
Current  
18  
20  
22  
0
Int Coef 4  
Int Min AD  
Int Max Temp  
Filter  
I2  
-32768  
32767  
32767  
32767  
255  
Sec  
Sec  
Sec  
I2  
-32768  
I2  
-32768  
5754  
239  
3
U1  
U1  
U1  
0
0
0
Current  
1
Deadband  
CC Deadband  
255  
mA  
Current  
2
255  
34  
294 nV  
Application Schematic  
The application schematic is on the following page.  
18  
Submit Documentation Feedback  
PACKAGE OPTION ADDENDUM  
www.ti.com  
26-Aug-2013  
PACKAGING INFORMATION  
Orderable Device  
Status Package Type Package Pins Package  
Eco Plan Lead/Ball Finish  
MSL Peak Temp  
Op Temp (°C)  
Device Marking  
Samples  
Drawing  
Qty  
(1)  
(2)  
(3)  
(4/5)  
BQ20Z70PW-V110G4  
BQ20Z70PWR-V110  
OBSOLETE  
NRND  
TSSOP  
TSSOP  
PW  
20  
20  
TBD  
Call TI  
Call TI  
-40 to 85  
-40 to 85  
20Z70PW  
PW  
2000  
2000  
Green (RoHS  
& no Sb/Br)  
CU NIPDAU  
Level-1-260C-UNLIM  
20Z70PW  
BQ20Z70PWR-V110G4  
NRND  
TSSOP  
PW  
20  
Green (RoHS  
& no Sb/Br)  
CU NIPDAU  
Level-1-260C-UNLIM  
-40 to 85  
20Z70PW  
(1) The marketing status values are defined as follows:  
ACTIVE: Product device recommended for new designs.  
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.  
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.  
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.  
OBSOLETE: TI has discontinued the production of the device.  
(2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability  
information and additional product content details.  
TBD: The Pb-Free/Green conversion plan has not been defined.  
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that  
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.  
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between  
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.  
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight  
in homogeneous material)  
(3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.  
(4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.  
(5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation  
of the previous line and the two combined represent the entire Device Marking for that device.  
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information  
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and  
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.  
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.  
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.  
Addendum-Page 1  
PACKAGE OPTION ADDENDUM  
www.ti.com  
26-Aug-2013  
Addendum-Page 2  
IMPORTANT NOTICE  
Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other  
changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest  
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supplied at the time of order acknowledgment.  
TI warrants performance of its components to the specifications applicable at the time of sale, in accordance with the warranty in TI’s terms  
and conditions of sale of semiconductor products. Testing and other quality control techniques are used to the extent TI deems necessary  
to support this warranty. Except where mandated by applicable law, testing of all parameters of each component is not necessarily  
performed.  
TI assumes no liability for applications assistance or the design of Buyers’ products. Buyers are responsible for their products and  
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