ISL9209B Datasheet (Renesas) - Charging System Safety Circuit

ISL9209B, Charging System Safety Circuit

DATASHEET ISL9209B Charging System Safety Circuit The ISL9209B is an integrated circuit (IC) optimized to provide a redundant safety protection to a Li-ion battery 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

ISL9209B Features

* Fully Integrated Protection Circuit for Three Protected Variables

* High Accuracy Protection Thresholds

* User Programmable Overcurrent Protection Threshold

* Input Overvoltage Protection in Less than 1s

* High Immunity of False Triggering Under Transients