The CXPR7134A is a protection IC which includes highaccuracy voltage detector and current detector to provide Over-Voltage (OV), Under-Voltage (UV), Over-Current (OC), Short-Circuit (SC), OverTemperature (OT), Under-Temperature (UT) protection for 5-series Li-ion/polymer battery pack used in power-tools, notebook PC applications etc. The CXPR7134A provides a specific CTRL pin to control both charge and discharge FET. When CTRL is floating, the CXPR7134A will enter standby state to save power consumption. Under standby state, discharge FET is turned off while charge FET is turned on. When CTRL is tied to VCC pin, the CXPR7134A works in normal state, however, both charge and discharge FET are turned off. When CTRL is tied to VSS pin, the CXPR7134Aworks in normal state, the state of charge and discharge FET are decided according to safety events.

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产品概述 返回TOP
The CXPR7134A is a protection IC which includes highaccuracy voltage detector and current detector to provide Over-Voltage (OV), Under-Voltage (UV), Over-Current (OC), Short-Circuit (SC), OverTemperature (OT), Under-Temperature (UT) protection for 5-series Li-ion/polymer battery pack used in power-tools, notebook PC applications etc. The CXPR7134A provides a specific CTRL pin to control both charge and discharge FET. When CTRL is floating, the CXPR7134A will enter standby state to save power consumption. Under standby state, discharge FET is turned off while charge FET is turned on. When CTRL is tied to VCC pin, the CXPR7134A works in normal state, however, both charge and discharge FET are turned off. When CTRL is tied to VSS pin, the CXPR7134Aworks in normal state, the state of charge and discharge FET are decided according to safety events. The CXPR7134Aintegrates FET driver. The CXPR7134Acan drive the N-type charge FET and N-type discharge FET at the PACK- side directly. The CXPR7134Aconsumes less than 30uA in normal state from VCC, and it reduces to less than 3uA in standby state and less than 1uA in power-down state. Furthermore, the CXPR7134Acan be powered from a switched supply, providing a technique to reduce battery stack current draw to zero. This device is packaged in a 16-pin TSSOP package.
产品特点 返回TOP
High Accuracy Voltage Detection Over-Voltage Protection
o VOVP: 3.6V~4.35V (50mV/step)
o Accuracy: ±25mV
o Hysteresis voltage: 0V or 0.1V to 0.3V in 50mV/step Under-Voltage Protection
o VUVP: 2.0V~3.0V (100mV/step) o Accuracy: ±80mV
o Hysteresis voltage: 0V to 1V in 100mV/step 3-Levels Over-Current Detection Level-1 Over-Current Protection:
o VOCP1: 25mV~350mV (25mV/step)
o Accuracy: ±10mV Level-2 Over-Current Protection:
o VOCP2=3*VOCP1
o Accuracy: ±30mV Short-Circuit Protection
o VSCP=5*VOCP1
o Accuracy: ±50mV
OC/SC release conditions: Charger-Connected OR Load-Opened
Built-in Over-Temperature Protection
Built-in Under-Temperature Protection
Delay times are set by external capacitors
Low-power Operating States:
Normal State: < 30uA
Standby State: < 3uA
Power-down State: < 1uA Hardware
Shut-down State:<0.1uA
16-Lead TSSOP Package APPLICAT
应用范围 返回TOP
Power-Tools
Notebook PC/Tablet PC
UPS Backup Battery Systems
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产品封装图 返回TOP
电路原理图 返回TOP
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2节锂电保护IC |
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型号 |
工作电压 |
工作电流 |
过充 电压 |
过充释 放电流 |
过放 电压 |
过放释 放电压 |
过放自 恢复 |
过流 保护 |
短路 保护 |
封装 |
1.5-10V |
5uA |
4.28V |
4.08V |
2.9V |
3.0V |
NO |
OK |
OK |
SOT-26 |
|
1.5-10V |
5uA |
4.28V |
4.08V |
2.9V |
3.0V |
OK |
OK |
OK |
SOT-26 |
|
1.5-12V |
12uA |
4.20V |
4.10V |
2.9V |
3.0V |
OK |
OK |
OK |
SOT-26 |
|
3-4节锂电保护IC |
||||||||||
型号 |
工作电压 |
工作电流 |
过充 电压 |
过充释 放电流 |
过放 电压 |
过放释 放电压 |
过放自 恢复 |
过流 保护 |
短路 保护 |
封装 |
3--24V |
16uA |
4.35V |
2.7V |
NO |
OK |
OK |
TSSOP16 |
|||
3--26V |
15uA |
4.25V |
2.7V |
NO |
OK |
OK |
TSSOP16 |
|||
3-5节/可以级联锂电保护IC |
||||||||||
型号 |
工作电压 |
工作电流 |
过充 电压 |
过充释 放电流 |
过放 电压 |
过放释 放电压 |
过放自 恢复 |
过流 保护 |
短 路保护 |
封装 |
3--26V |
25uA |
4.25V |
2.7V |
NO |
OK |
OK |
TSSOP24 |
|||
3--20V |
20uA |
4.25V |
4.15V |
2.7V |
3.0V |
NO |
OK |
OK |
TSSOP16 |