Your location:Home > Products > Lithium Battery Management IC
Lithium Battery Management IC
SIT8992S-Lithium battery protection IC-3 string ultra-small
3 series lithium battery protection series
SIT8992S is a protection chip designed to protect 3 strings of lithium-ion/polymer batteries, which can reduce the risk of battery damage or shortened life due to battery overcharge, overdischarge, overtemperature or overcurrent.
SIT8992S ultra-small SOP8 package and minimal external component requirements make it easy to integrate the chip into a limited battery pack.
SIT8992S ultra-small SOP8 package and minimal external component requirements make it easy to integrate the chip into a limited battery pack.
Hotline:138 2870 3807
Description
1 Overview
SIT8992S is a battery designed to protect 3 strings of lithium ion/polymer batteries.
The battery protection chip can reduce the battery overcharge, overdischarge, overtemperature or overcurrent
And the risk of battery damage or shortened life.
SIT8992S ultra-small SOP8 package and minimal external components
Demand makes it easy to integrate chips into limited battery packs.
application
Lithium-ion rechargeable battery pack
Lithium polymer rechargeable battery pack
2. Features
Built-in high-precision voltage detection circuit:
◆Overcharge detection voltage
High voltage section: V OV =4.200V to 4.375V; 25mV/step
Low voltage section: V OV =3.400V to 3.950V; 50mV/step
Accuracy: ±25mV
◆Overcharge hysteresis voltage:
V OVR =V OV -V △ OV (0~300mV, 100mV/step)
Accuracy: ±50mV
◆Over-discharge detection voltage
High voltage section: V UV =2.300V to 3.000V; 100mV/step
Low voltage section: V UV =1.800V to 2.500V; 100mV/step
Accuracy: ±50mV
◆Over-discharge hysteresis voltage:
V UVR =V UV -V △UV (0~300mV, 100mV/step)
Built-in three-stage discharge overcurrent detection circuit
◆Discharge overcurrent 1 Detection voltage:
V DOC1 =25mV~200mV 25mV/step
Accuracy: ±12.5mV
◆Discharge overcurrent 2 Detection voltage:
V DOC2 =2* V DOC1
Accuracy: ±25mV
◆Load short circuit detection current
V SC =4* V DOC1
Accuracy: ±25mV
Charge overcurrent detection circuit
V COC =20mV~50mV 10mV/step
Accuracy: ±6mV
Temperature protection circuit
◆Discharge temperature protection DOT
◆Charge over-temperature protection COT
Low current consumption:
◆When working: 15μA
◆ Sleep state: <1.5uA
SIT8992S is a battery designed to protect 3 strings of lithium ion/polymer batteries.
The battery protection chip can reduce the battery overcharge, overdischarge, overtemperature or overcurrent
And the risk of battery damage or shortened life.
SIT8992S ultra-small SOP8 package and minimal external components
Demand makes it easy to integrate chips into limited battery packs.
application
Lithium-ion rechargeable battery pack
Lithium polymer rechargeable battery pack
2. Features
Built-in high-precision voltage detection circuit:
◆Overcharge detection voltage
High voltage section: V OV =4.200V to 4.375V; 25mV/step
Low voltage section: V OV =3.400V to 3.950V; 50mV/step
Accuracy: ±25mV
◆Overcharge hysteresis voltage:
V OVR =V OV -V △ OV (0~300mV, 100mV/step)
Accuracy: ±50mV
◆Over-discharge detection voltage
High voltage section: V UV =2.300V to 3.000V; 100mV/step
Low voltage section: V UV =1.800V to 2.500V; 100mV/step
Accuracy: ±50mV
◆Over-discharge hysteresis voltage:
V UVR =V UV -V △UV (0~300mV, 100mV/step)
Built-in three-stage discharge overcurrent detection circuit
◆Discharge overcurrent 1 Detection voltage:
V DOC1 =25mV~200mV 25mV/step
Accuracy: ±12.5mV
◆Discharge overcurrent 2 Detection voltage:
V DOC2 =2* V DOC1
Accuracy: ±25mV
◆Load short circuit detection current
V SC =4* V DOC1
Accuracy: ±25mV
Charge overcurrent detection circuit
V COC =20mV~50mV 10mV/step
Accuracy: ±6mV
Temperature protection circuit
◆Discharge temperature protection DOT
◆Charge over-temperature protection COT
Low current consumption:
◆When working: 15μA
◆ Sleep state: <1.5uA
Tel：138 2870 3807
Wechat：HLECSIT
Address：5 / F, building 1, yibaolai industrial town, Fuyong Fuhai street, Bao'an District, Shenzhen