HY2122-EB1A [HYCON]
2-Cell LiFePO4;
| 型号： | HY2122-EB1A |
| 厂家： | 
HYCON Technology Corporation |
| 描述： | 2-Cell LiFePO4 |
| 文件： | 总23页 (文件大小：1263K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
HY2122
Data Sheet
2-Cell LiFePO4
Battery Packs Protection ICs
.
© 2012-2015 HYCON Technology Corp.
www.hycontek.com
DS-HY2122-V03_EN
HY2122
2-Cell LiFePO4 Battery Packs Protection ICs
Table of Contents
1.
GENERAL DESCRIPTION .......................................................................................................................4
2.
FEATURES ...............................................................................................................................................4
APPLICATIONS........................................................................................................................................4
BLOCK DIAGRAM....................................................................................................................................5
ORDERING INFORMATION.....................................................................................................................6
MODEL LIST.............................................................................................................................................6
Delay Time Code-Parameter Option of Delay Time..............................................................................7
Characteristic Code-Other function Option...........................................................................................7
PIN CONFIGURATION AND PACKAGE MARKING INFORMATION .....................................................7
ABSOLUTE MAXIMUM RATINGS...........................................................................................................8
ELECTRICAL CHARACTERISTICS ........................................................................................................9
Electrical Characteristics (Except Delay Time Parameter) ...................................................................9
Delay Time Combination.....................................................................................................................10
3.
4.
5.
6.
6.1.
6.2.
7.
8.
9.
9.1.
9.2.
10. BATTERY PROTECTION IC CONNECTION EXAMPLE....................................................................... 11
11. DESCRIPTION OF OPERATION............................................................................................................13
11.1. Normal Status......................................................................................................................................13
11.2. Overcharge Status ..............................................................................................................................13
11.3. Overdischarge Status..........................................................................................................................13
.
11.4. Discharge Overcurrent Status (Discharge Overcurrent & Short Circuit).............................................14
11.5. Charge Overcurrent Status .................................................................................................................15
11.6. 0V Battery Charging Function “Available”...........................................................................................15
11.7. 0V Battery Charging Function “Unavailable” ......................................................................................16
12. CHARACTERISTICS (TYPICAL DATA).................................................................................................17
13. PACKAGE INFORMATION.....................................................................................................................20
13.1. SOT-23-6.............................................................................................................................................20
14. TAPE & REEL INFORMATION...............................................................................................................21
14.1. Tape & Reel Information---SOT-23-6 (Type 1)....................................................................................21
14.2. Tape & Reel Information---SOT-23-6 (Type 2)....................................................................................22
15. REVISION RECORD...............................................................................................................................23
© 2012-2015 HYCON Technology Corp
www.hycontek.com
DS-HY2122-V03_EN
page2
HY2122
2-Cell LiFePO4 Battery Packs Protection ICs
Attention：
1.
HYCON Technology Corp. reserves the right to change the content of this datasheet without further
notice. For most up-to-date information, please constantly visit our website:
http://www.hycontek.com .
2.
3.
HYCON Technology Corp. is not responsible for problems caused by figures or application circuits
narrated herein whose related industrial properties belong to third parties.
Specifications of any HYCON Technology Corp. products detailed or contained herein stipulate the
performance, characteristics, and functions of the specified products in the independent state. We
does not guarantee of the performance, characteristics, and functions of the specified products as
placed in the customer’s products or equipment. Constant and sufficient verification and evaluation
is highly advised.
4.
Please note the operating conditions of input voltage, output voltage and load current and ensure
the IC internal power consumption does not exceed that of package tolerance. HYCON Technology
Corp. assumes no responsibility for equipment failures that resulted from using products at values
that exceed, even momentarily, rated values listed in products specifications of HYCON products
specified herein.
5.
6.
Notwithstanding this product has built-in ESD protection circuit, please do not exert excessive static
electricity to protection circuit.
.
Products specified or contained herein cannot be employed in applications which require extremely
high levels of reliability, such as device or equipment affecting the human body, health/medical
equipments, security systems, or any apparatus installed in aircrafts and other vehicles.
Despite the fact that HYCON Technology Corp. endeavors to enhance product quality as well as
reliability in every possible way, failure or malfunction of semiconductor products may happen.
Hence, users are strongly recommended to comply with safety design including redundancy and
fire-precaution equipments to prevent any accidents and fires that may follow.
7.
8.
Use of the information described herein for other purposes and/or reproduction or copying without
the permission of HYCON Technology Corp. is strictly prohibited.
© 2012-2015 HYCON Technology Corp
www.hycontek.com
DS-HY2122-V03_EN
page3
HY2122
2-Cell LiFePO4 Battery Packs Protection ICs
1. General Description
The series of HY2122 ICs is best created for 2-cell LiFePO4 battery protection and it also comprises
high-accuracy voltage detectors and delay circuits.
These ICs are suitable for protecting 2-cell LiFePO4 battery packs against the problems of overcharge,
overdischarge and overcurrent.
2. Features
The features that whole series of HY2122 comprised are as follows:
(1) High-accuracy voltage detection circuit
● Overcharge detection voltage VCUn (n＝1,2)
● Overcharge release voltage VCRn (n＝1,2)
3.60 to 4.00V
3.40 to 4.00V
1.80 to 2.20V
1.80 to 2.50V
(by option)
Accuracy ±25mV
Accuracy ±50mV
Accuracy ±80mV
Accuracy ±100mV
● Overdischarge detection voltage VDLn (n＝1,2)
● Overdischarge release voltage VDRn (n＝1,2)
● Discharge overcurrent detection voltage
● Charge overcurrent detection voltage
● Short-circuiting detection voltage
(by option)
Accuracy ±30mV
Accuracy ±0.4V
1.0V(fixed)
(2)Delay times are generated by an internal circuit (external capacitors are unnecessary).
● Overcharge delay time
1000ms typ.
110ms typ.
10ms typ.
7ms typ.
● Overdischarge delay time
● Discharge overcurrent delay time
● Charge overcurrent detection voltage
● Short circuit delay time
.
250μs typ.
(3) Low current consumption (Products with Power-down Function)
● Operation mode
5.0μA typ., 9.0μA max. (VDD=6.4V)
0.1μA max.
● Ultra low power-down current at
(4) High-withstanding-voltage device is used for charger connection pins
(CS pin and OC pin : Absolute maximum rating = 33 V)
(5) 0 V battery charge function “available” / “unavailable” are selectable
(6) Wide operating temperature range −40°C to +85 °C
(7) Small package
SOT-23-6
(8) The HY2122 series are Halogen-free, green package
3. Applications
2-cell LiFePO4 rechargeable battery packs
© 2012-2015 HYCON Technology Corp
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DS-HY2122-V03_EN
page4
HY2122
2-Cell LiFePO4 Battery Packs Protection ICs
4. Block Diagram
Oscillator
Counter
VDD
VDD
Overcharge
detector 1
short circuit
detector
overdischarge
detector 1
discharge
overcurrent detector
Control
Logic
VC
Overcharge
detector 2
VSS
charge overcurrent
detector
.
overdischarge
detector 2
CS
VSS
VSS
VSS
© 2012-2015 HYCON Technology Corp
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DS-HY2122-V03_EN
page5
HY2122
2-Cell LiFePO4 Battery Packs Protection ICs
5. Ordering Information
Product name define
HY2122 #%$&
Characteristic code
Alphabetically set from A to Z
Delay time code
Sequentially set from 1 to 9
Package type
B: SOT-23-6
Serial code
Alphabetically set from A to Z
6. Model List
Table 1 Model list
Over-
charge
detection
voltage
VCU
Over-
Over-
Over-
Discharge
Charge
Delay
Time
Code
charge discharge discharge overcurrent overcurrent
Characteristic
Code
Model
release
voltage
VCR
detection
voltage
VDL
release
detection
voltage
VDIP
detection
voltage
VCIP
.
voltage
VDR
-
-
HY2122-AB1A
HY2122-AB1B
HY2122-BB1A
HY2122-EB1A
3.65V
3.65V
3.75V
3.95V
3.45V
3.45V
3.25V
3.50V
2.00V
2.00V
1.80V
2.20V
2.50V
2.50V
2.30V
2.50V
200mV
200mV
200mV
200mV
-200mV
-200mV
-200mV
-200mV
1
1
1
1
A
B
A
A
Remark: 1. Table 1 lists out typical value of every electrical parameter. Please refer to Table 6 for
detailed electrical characteristics.
2. Table 2 lists out delay time parameters of every corresponding delay time code. Table 3 lists out
characteristic function of every corresponding characteristic code.
3. Please contact our sales office for the products with detection voltage value other than those
specified above.
© 2012-2015 HYCON Technology Corp
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DS-HY2122-V03_EN
page6
HY2122
2-Cell LiFePO4 Battery Packs Protection ICs
6.1. Delay Time Code-Parameter Option of Delay Time
Table 2 Delay Time Code- Delay Time Parameter Option
Discharge
Charge
Overcurrent
Overcharge
Overdischarge
Short Circuit
Delay Time
Overcurrent
Delay Time
Code
Delay Time
Delay Time
Delay Time
Delay Time
TCIP
TOC
TOD
TDIP
TSIP
1
1000ms
110ms
10ms
7ms
250μs
Remark:
1. Table 2 lists out typical value of every delay time parameters, for detailed delay time combination
2. please refer to Table 7.
6.2. Characteristic Code-Other function Option
Table 3 Characteristic Code-Other function Option
Power-down Function/
Characteristic Code
0 V Battery Charge Function
Auto Overdischarge Recovery Function
With power-down Function
A
B
C
Available
Available
With auto overdischarge recovery function
With auto overdischarge recovery function
Unavailable
7. Pin Configuration and Package Marking Information
.
Table 4
Pin No.
Symbol
Description
1
OD
MOSFET gate connection pin for discharge control
2
3
4
5
6
OC
CS
MOSFET gate connection pin for charge control
Input pin for current sense, charger detect pin
Input pin of the center voltage between two-cell
Power supply pin
VC
VDD
VSS
Ground pin
22: Product Name.
#: Serial code. Alphabetically set from A to Z.
&: Characteristic code. Alphabetically set from A to Z.
XXXX: Date code.
© 2012-2015 HYCON Technology Corp
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DS-HY2122-V03_EN
page7
HY2122
2-Cell LiFePO4 Battery Packs Protection ICs
8. Absolute Maximum Ratings
Table 5 Absolute Maximum Ratings (VSS=0V, Ta=25°C unless otherwise specified)
Item
Input voltage between VDD and VSS pin
OC output pin voltage
Symbol
VDD
Rating
Unit
V
VSS-0.3 to VSS+10
VDD-33 to VDD+0.3
VSS-0.3 to VDD+0.3
VDD-33 to VDD+0.3
-40 to +85
VOC
V
OD output pin voltage
VOD
V
CS input pin voltage
VCS
V
Operating Temperature Range
Storage Temperature Range
TOP
°C
°C
TST
-40 to +125
Power dissipation
PD
250
mW
.
© 2012-2015 HYCON Technology Corp
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page8
HY2122
2-Cell LiFePO4 Battery Packs Protection ICs
9. Electrical Characteristics
9.1. Electrical Characteristics (Except Delay Time Parameter)
Table 6 Electrical Characteristics (VSS=0V, Ta=25°C unless otherwise specified)
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
SUPPLY POWER RANGE
Operating voltage between
VDD pin and VSS pin
Operating voltage between
VDD pin and CS pin
VDSOP1
VDSOP2
-
-
1.5
1.5
-
-
10
33
V
V
INPUT CURRENT(with Power-down Function)
Supply Current
Power-Down Current
IDD
IPD
VDD=6.4V
-
-
5.0
-
9.0
0.1
μA
μA
INPUT CURRENT(with Auto Overdischarge Recovery Function)
Supply Current
Power-Down Current
IDD
IPD
VDD=6.4V
-
-
5.0
5.0
9.0
9.0
μA
μA
DETECTION VOLTAGE
Overcharge Detection
Voltage cell n (*1)
Overcharge Release
Voltage cell n (*1)
3.6V to 4.0V
adjustable
3.4V to 4.0V
adjustable
1.8V to 2.2V
adjustable
VCUn
VCRn
VDLn
VDRn
VDIP
VSIP
VCIP
V
CUn-0.025
VCUn
VCRn
VDLn
VDRn
VDIP
1.0
VCUn+0.025
VCRn +0.05
VDLn +0.08
VDRn +0.10
VDIP +30
1.4
V
V
VCRn -0.05
VDLn -0.08
VDRn -0.10
VDIP -30
0.6
Overdischarge
Detection
V
Voltage cell n (*1)
Overdischarge
Release
1.8V to 2.5V
V
Voltage cell n (*1)
adjustable
.
Discharge
Overcurrent
mV
V
Detection Voltage
Short Circuit Detection
Voltage
VDD-VSS=6.0V
Charge
Overcurrent
VCIP -30
VCIP
VCIP +30
mV
Detection Voltage
CONTROL OUTPUT VOLTAGE(OD&OC)
OD Pin Output “H” Voltage
OD Pin Output “L” Voltage
OC Pin Output “H” Voltage
OC Pin Output “L” Voltage
VDH
VDL
VCH
VCL
VDD-0.1
VDD-0.02
0.2
VDD-0.02
0.2
V
V
V
V
0.5
0.5
VDD-0.1
0V BATTERY CHARGE FUNCTION
Charger
voltage(available 0V battery
charge function)
start
Available
battery
function
0V
charge
V0CH
1.2
-
-
-
-
V
V
Unavailable 0V
Battery voltage(unavailable
0V battery charge function)
V0IN
battery
charge
0.5
function
NOTE:
*1. n=1,2。
© 2012-2015 HYCON Technology Corp
www.hycontek.com
DS-HY2122-V03_EN
page9
HY2122
2-Cell LiFePO4 Battery Packs Protection ICs
9.2. Delay Time Combination
Table 7 Delay Time Parameter Combination of Delay Time Code: 1
Item
Overcharge Delay Time
Symbol
TOC
Min.
700
70
Typ.
1000
110
10
Max.
1300
150
14
Unit
ms
ms
ms
ms
μs
Overdischarge Delay Time
TOD
Discharge Overcurrent Delay Time
Charge Overcurrent Delay Time
Short Circuit Delay Time
TDIP
6
TCIP
4
7
10
TSIP
150
250
400
.
© 2012-2015 HYCON Technology Corp
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page10
HY2122
2-Cell LiFePO4 Battery Packs Protection ICs
10.Battery Protection IC Connection Example
Symbol Device Name
Purpose
Min.
Typ.
Max.
Remark
Resistor
limit current, stabilize VDD and
strengthen ESD protection
100Ω
470Ω
*1
R1
330Ω
.
Resistor
limit current, stabilize VC and
100Ω
470Ω
*1
R2
330Ω
strengthen ESD protection
Resistor
limit current
1 kΩ
4kΩ
*2
*3
*3
*4
*5
R3
C1
C2
M1
M2
2kΩ
Capacitor
Capacitor
N-MOSFET
N-MOSFET
Filter, stabilize VDD
Filter, stabilize VDD
Discharge control
Charge control
0.01μF
1.0μF
0.1μF
0.01μF
1.0μF
0.1μF
-
-
-
-
-
-
*1. If R1 or R2 connects with an over-spec resistor, battery accuracy may be influenced due to R1 or R2
voltage drop that caused by current consumption. When a charger is connected in reversed, the
current flows from the charger to the IC. At this time, if R1 or R2 is too high, the voltage between VDD
pin and VSS pin may exceed the absolute maximum rating.
*2. If R3 connects with an over-spec resistor, the charging current may not be cut off when a
high-voltage charger is connected. Please select as large a resistor as possible to control current
when a charger is connected in reversed.
*3. C1 & C2 can stabilize the supply voltage of VDD, the value of C1 & C2 should be equal to or more
than 0.01μF.
*4. If a MOSFET with a threshold voltage that is the same or more than overdischarge detection voltage
is applied, discharging may be stopped before overdischarge is detected.
*5. If the withstanding voltage between the gate and source is lower than the charger voltage, the FET
may be destroyed.
© 2012-2015 HYCON Technology Corp
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page11
HY2122
2-Cell LiFePO4 Battery Packs Protection ICs
Caution：
1. The above constants may be changed without notice, please download the most up-to-date datasheet
on our website. http://www.hycontek.com
2. It is advised to perform thorough evaluation and test if peripheral devices need to be amended.
.
© 2012-2015 HYCON Technology Corp
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DS-HY2122-V03_EN
page12
HY2122
2-Cell LiFePO4 Battery Packs Protection ICs
11. Description of Operation
11.1.Normal Status
This IC monitors the voltage of the battery connected between the VDD pin and VSS pin and the
voltage difference between the CS pin and VSS pin to control charging and discharging.
When the cell1 and cell2 voltage is in the range from overdischarge detection voltage (VDLn) to
overcharge detection voltage (VCUn), and the CS pin voltage is in the range from the charge
overcurrent detection voltage (VCIP) to discharge overcurrent detection voltage (VDIP), the IC turns
both the charging and discharging control MOSFET on. This condition is called the normal status.
Under this condition, charging and discharging can both be carried out freely.
Notice: Discharging may not be enacted when the battery is first time connected. To regain
normal status, CS and VSS PIN must be shorted or the charger must be connected.
11.2.Overcharge Status
The normal state of the battery voltage between VDD pin and VC pin (the voltage of Cell 1) and the
voltage between VC pin and VSS pin (the voltage of Cell2), if either voltage becomes equal or more
than the overcharge detector voltage (VCUn), and continued exceed overcharge delay time (TOC) an
external charge control Nch MOSFET turns off with OC pin being at "L" level.
To reset the overcharge and make the OC pin level to "H" again after detecting overcharge, in such
conditions that a time when the both Cell1 and Cell2 are down to a level lower than overcharge
.
voltage, by connecting a kind of load to VDD after disconnecting a charger from the battery pack.
Then, the output voltage of OC pin becomes "H", and it makes an external Nch MOSFET turn on,
and charge cycle is available. In other words, once overcharge is detected, even if the supply
voltage becomes low enough, if a charger is continuously connected to the battery pack, recharge is
not possible.
Further, either or both voltage of Cell1 and Cell2 is higher than the overcharge detector threshold, if
a charger is removed and some load is connected, OC outputs “L”, however, load current can flow
through the parasitic diode of the external charge control Nch MOSFET. After that, when the VDD
pin voltage becomes lower than the overcharge detector threshold, OC becomes “H”.
Internal fixed output delay times for overcharge detection. If either or both of the voltage of Cell1 or
Cell2 keeps its level more than the overcharge detector threshold, and output delay time passes,
overcharge voltage is detected. Even when the voltage of Cell1 or Cell2 level becomes equal or
higher level than overcharge detection voltage (VCUn) if these voltages would be back to a level
lower than the overcharge detector threshold within a time period of the output delay time, the
overcharge is not detected.
11.3.Overdischarge Status
Batteries under normal operation mode, voltage of cell 1 that connected to VDD and VC pin or voltage
of cell 2 that connected to VC and VSS pin drops lower than overdischarge detection voltage (VDLn
)
and the mode continues longer than overdischarge detection delay time (TOD) during discharging,
© 2012-2015 HYCON Technology Corp
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HY2122
2-Cell LiFePO4 Battery Packs Protection ICs
HY2122 series will turn the OD pin output voltage from high level to low level and turn the discharging
control MOSFET off (OD pin) so as to stop discharging. This condition is called the “Overdischarge
Status”.
11.3.1. Products with Power-down Function
When MOSFET is off, CS pin voltage is pulled up by IC internal resistor to VDD, reducing IC power
consumption value to that of in the sleep mode (<0.1uA ). This condition is called the “Sleep Mode”.
The overdischarge status will be leased by two following cases. OD pin output voltage turns from low
level to high level, conducting discharge control MOSFET.
(1) If CS pin voltage lowers than charge overcurrent detection voltage (VCIP) when charger is
connected, voltage of cell 1 and cell 2 goes higher than overdischarge detection voltage（VDLn）, the
overdischarge status is released and back to normal operation mode.
(2) If CS pin voltage is higher than charge overcurrent detection voltage (VCIP) when charger is
connected, voltage of cell 1 and cell 2 goes higher than overdischarge release voltage (VDRn), the
overdischarge status is released and back to normal operation mode.
11.3.2. Products with Auto Overdischarge Recovery Function
The overdischarge status will be released by three cases:
(1) When CS pin voltage is equal to or lower than the charge overcurrent detection voltage (VCIP) by
charging and the VDD pin voltage is higher than the overdischarge detection voltage (VDL).
.
(2) When CS pin voltage is equal to or higher than the charge overcurrent detection voltage (VCIP) by
charging and the VDD pin voltage is higher than the overdischarge release voltage (VDR).
(3) Without connecting a charger, if the VDD pin voltage is higher than overdischarge release voltage
(VDR), the overdischarge status will be released, namely Auto Overdischarge Recovery Function.
Notice：
① When voltage of cell 1 and cell 2 lowers than overdischarge detection voltage (VDLn) and stayed
within overdischarge detection delay time (TOD), the voltage of cell 1 and cell 2 increases higher
than overdischarge detection voltage (VDLn), it will not enter into overdischarge protection mode.
② The output type of OD pin is having "H" level of VDD and "L" level of VSS.
11.4.Discharge Overcurrent Status (Discharge Overcurrent & Short Circuit)
The IC continuously monitor discharge current by examining CS pin voltage when batteries under
normal operation. Once the voltage of CS pin exceeds that of discharge overcurrent detection
voltage (VDIP) and this status lasts longer than discharge overcurrent delay time (TDIP), and voltage
output of OD pin changes from high potential to low potential, the MOSFET (OD pin) is disabled and
discharge stopped. This status is called “Discharge Over-current Status”.
When CS pin voltage excels short circuit detection voltage (VSIP) and this status lasts longer than
short circuit delay tome (TSIP), voltage output of OD pin changes from high potential to low potential.
At this time, the MOSFET (OD pin) is disabled and discharge stopped. This status is called “Short
Circuit Status”.
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HY2122
2-Cell LiFePO4 Battery Packs Protection ICs
Discharge over-current status and short current status is released while the connected impedance
between PB+ and PB- is larger than 450kΩ (typ.).
Additionally, when charger is connected, even the impedance between PB+ and PB- lowers than
450kΩ (typ.) and CS pin voltage lowers than discharge overcurrent detection voltage (VDIP), the
discharge over-current status or short circuit status will still be released and back to normal
operation mode.
11.5.Charge Overcurrent Status
When CS pin voltage lowers than charge overcurrent detection voltage (VCIP) and this status lasts
longer than charge overcurrent delay time (TCIP) during charge process of batteries under normal
operation, OC pin voltage output will change from high potential to low potential. At this time,
MOSFET (OC pin) is disabled and charge stopped. This status is called “Charge Overcurrent
Status”.
If CS pin voltage increases higher than charge overcurrent detection voltage (VCIP) by disconnecting
charger after enter charge overcurrent status, the charge overcurrent status will be released and
restore to normal operation mode.
11.6.0V Battery Charging Function “Available”
This function is used to recharge a connected battery which voltage is 0V due to self-discharge. When
.
the 0V battery charge starting charger voltage (V0CH) or a higher voltage is applied between the
battery+ (PB+) and battery- (PB-) pins by connecting a charger, the charging control MOSFET gate is
fixed to the VDD pin voltage.
When the voltage between the gate and the source of the charging control MOSFET becomes equal
to or higher than the turn on voltage due to the charger voltage, the charging control MOSFET is
turned on to initiate charging. At this time, the discharging control MOSFET is off and the charging
current flows through the internal parasitic diode in the discharging control MOSFET. When the battery
voltage becomes equal to or higher than overdischarge detection voltage (VDL), the HY2122 series will
enter into the normal status.
Caution
(1) Some battery providers do not recommend charging for a completely self-discharged battery.
Please ask the battery provider to determine whether to enable or prohibit the 0V battery charging
function.
(2) The 0V battery charge function has higher priority than the charge overcurrent detection function.
Consequently, a product in which use of the 0V battery charging function is enabled to forcibly charge
a battery and the charge current cannot be detected when the battery voltage is lower than
overdischarge detection voltage (VDL).
© 2012-2015 HYCON Technology Corp
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DS-HY2122-V03_EN
page15
HY2122
2-Cell LiFePO4 Battery Packs Protection ICs
11.7. 0V Battery Charging Function “Unavailable”
When a battery that is internally short-circuited (0V battery) is connected, the unavailable 0V charging
function will prohibit recharging. When the battery voltage equals to the 0V battery charge inhibition
battery voltage (V0IN) or lower, the charging control MOSFET gate is fixed to the PB- pin voltage to
prohibit charging. When the battery voltage equals to the 0V battery charge inhibition battery voltage
(V0IN) or higher, charging can be implemented.
Caution
(1) Some battery providers do not recommend charging for a completely self-discharged battery.
Please ask the battery provider to determine whether to enable or prohibit the 0V battery charging
function.
.
© 2012-2015 HYCON Technology Corp
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page16
HY2122
2-Cell LiFePO4 Battery Packs Protection ICs
12.Characteristics (Typical Data)
12.1. Overcharge Detection / Release Voltage, Overdischarge Detection / Release
Voltage, Discharge overcurrent Detection Voltage,Short circuit Detection Voltage，
Charge overcurrent Detection Voltage and Delay Time
(1)VCU1 vs. Ta
(3)VDL1 vs. Ta
(5)VCU2 vs. Ta
(2)VCR1 vs. Ta
(4)VDR1 vs. Ta
(6)VCR2 vs. Ta
.
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HY2122
2-Cell LiFePO4 Battery Packs Protection ICs
(7)VDL2 vs. Ta
(8)VDR2 vs. Ta
(9)TOC vs. Ta
(10)TOD vs. Ta
.
(11)VDIP vs. Ta
(12)TDIP vs. Ta
© 2012-2015 HYCON Technology Corp
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DS-HY2122-V03_EN
page18
HY2122
2-Cell LiFePO4 Battery Packs Protection ICs
(13)VCIP vs. Ta
(14)TCIP vs. Ta
(15)TSIP vs. Ta
.
12.2. Current Consumption
(16)IDD vs. Ta
(17)IPD vs. Ta
© 2012-2015 HYCON Technology Corp
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DS-HY2122-V03_EN
page19
HY2122
2-Cell LiFePO4 Battery Packs Protection ICs
13.Package information
13.1.SOT-23-6
NOTE: All dimensions are in millimeters.
ALL DIMENSIONS IN
MILLIMETERS
MINIMUM NOMINAL MAXIMUM
SYM
BOL
.
A
A1
A2
b
b1
b2
c
-
0
1.30
-
1.20
-
0.40
0.40
-
1.40
0.15
1.30
0.50
0.45
0.50
0.22
0.20
0.90
0.30
0.30
0.30
0.08
0.08
c1
D
0.13
2.90 BSC
E
2.80 BSC
E1
e
1.60 BSC
0.95 BSC
e1
L
1.90 BSC
0.30
0.45
0.60
L1
L2
R
R1
θ
0.60 REF
0.25 BSC
0.10
0.10
0°
5°
5°
-
-
4°
-
-
0.25
8°
15°
15°
θ1
θ2
-
© 2012-2015 HYCON Technology Corp
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DS-HY2122-V03_EN
page20
HY2122
2-Cell LiFePO4 Battery Packs Protection ICs
14.Tape & Reel Information
14.1.Tape & Reel Information---SOT-23-6 (Type 1)
Unit : mm.
14.1.1. Reel Dimensions
14.1.2. Carrier Tape Dimensions
.
Reel
Carrier Tape Dimensions
SYMBOLS
Dimensions
A
W1
9.0
A0
B0
K0
P0
P1
P2
E
F
D0
W
Spec.
178
3.30 3.20 1.50 4.00 4.00 2.00 1.75 3.50
1.50
8.00
Tolerance
±0.50 +1.50/-0 ±0.10 ±0.10 ±0.10 ±0.10 ±0.10 ±0.05 ±0.10 ±0.05 +0.1/-0 ±0.20
Note: 10 Sprocket hole pitch cumulative tolerance is ±0.20mm.
14.1.3. Pin1 direction
© 2012-2015 HYCON Technology Corp
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DS-HY2122-V03_EN
page21
HY2122
2-Cell LiFePO4 Battery Packs Protection ICs
14.2.Tape & Reel Information---SOT-23-6 (Type 2)
Unit : mm.
14.2.1. Reel Dimensions
14.2.2. Carrier Tape Dimensions
.
Reel
Carrier Tape Dimensions
SYMBOLS
Spec.
Dimensions
A
W1
9.4
A0
B0
K0
P0
P1
P2
E
F
D0
W
178
3.17 3.23 1.37 4.00 4.00 2.00 1.75 3.50 1.55
8.00
Tolerance ±2.00 ±1.50 ±0.10 ±0.10 ±0.10 ±0.10 ±0.10 ±0.05 ±0.10 ±0.05 ±0.05 +0.30/-0.10
Note: 10 Sprocket hole pitch cumulative tolerance is ±0.20mm.
14.2.3. Pin1 direction
© 2012-2015 HYCON Technology Corp
www.hycontek.com
DS-HY2122-V03_EN
page22
HY2122
2-Cell LiFePO4 Battery Packs Protection ICs
15. Revision record
Major differences are stated thereinafter:
Version Page
Revision Summary
V01
V02
V03
-
First Edition
7
Revise SOT-23-6 package marking rule.
Add in Tape and Reel information.
21-22
.
© 2012-2015 HYCON Technology Corp
www.hycontek.com
DS-HY2122-V03_EN
page23
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