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ISL9212B

Renesas
Part Number ISL9212B
Manufacturer Renesas
Description Charging System Safety Circuit
Published Jun 18, 2019
Detailed Description ISL9212B Charging System Safety Circuit The ISL9212B is an integrated circuit (IC) optimized to provide a Li-ion batter...
Datasheet PDF File ISL9212B PDF File

ISL9212B
ISL9212B

Overview
ISL9212B Charging System Safety Circuit The ISL9212B is an integrated circuit (IC) optimized to provide a Li-ion battery redundant safety protection from failures of a charging system.
The IC monitors the input voltage, the battery voltage, and the charge current.
When any of the three parameters exceeds its limit, the IC turns off an internal P-Channel MOSFET to remove the power from the charging system.
In addition to the above protected parameters, the IC also monitors its own internal temperature and turns off the P-Channel MOSFET when the die temperature exceeds +140°C.
Together with the battery charger IC and the protection module in a battery pack, the charging system using the ISL9212B has triple-level protection and is two-fault tolerant.
The IC is designed to turn on the internal PFET slowly to avoid inrush current at power-up but will turn off the PFET quickly when input overvoltage is detected in order to remove the power before any damage occurs.
The ISL9212B has a logic...


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