Protection IC for 5 Cells Li-ion Battery Pack The CXPR7134A is a protection IC which includes highaccuracy voltage detector and current detector to provide Over-Voltage (OV), Under-Voltage (UV), Over

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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TOPyD4嘉泰姆

High Accuracy Voltage Detection Over-Voltage Protection yD4嘉泰姆

o VOVP: 3.6V~4.35V (50mV/step) yD4嘉泰姆

o Accuracy: ±25mV yD4嘉泰姆

o Hysteresis voltage: 0V or 0.1V to 0.3V in 50mV/step Under-Voltage Protection yD4嘉泰姆

o VUVP: 2.0V~3.0V (100mV/step) o Accuracy: ±80mV yD4嘉泰姆

o Hysteresis voltage: 0V to 1V in 100mV/step
3-Levels Over-Current Detection Level-1 Over-Current Protection: yD4嘉泰姆

o VOCP1: 25mV~350mV (25mV/step) yD4嘉泰姆

o Accuracy: ±10mV Level-2 Over-Current Protection: yD4嘉泰姆

o VOCP2=3*VOCP1 yD4嘉泰姆

o Accuracy: ±30mV Short-Circuit Protection yD4嘉泰姆

o VSCP=5*VOCP1 yD4嘉泰姆

o Accuracy: ±50mV
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OC/SC release conditions: Charger-Connected OR Load-OpenedyD4嘉泰姆

 
Built-in Over-Temperature ProtectionyD4嘉泰姆

 
Built-in Under-Temperature ProtectionyD4嘉泰姆

 
Delay times are set by external capacitorsyD4嘉泰姆

 
Low-power Operating States: yD4嘉泰姆

 Normal State: < 30uA yD4嘉泰姆

 Standby State: < 3uA yD4嘉泰姆

 Power-down State: < 1uA Hardware yD4嘉泰姆

Shut-down State:<0.1uA
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16-Lead TSSOP Package APPLICATyD4嘉泰姆

   应用范围 返回TOPyD4嘉泰姆

Power-ToolsyD4嘉泰姆

 
Notebook PC/Tablet PCyD4嘉泰姆

 
UPS Backup Battery SystemsyD4嘉泰姆

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