ISL9211B Datasheet - Renesas

ISL9211B Charging System Safety Circuit

SYMBOL VIN GND NC FAULT EN VB ILIM OUT PAD PIN NUMBER DESCRIPTION 1 The input power source. VIN can withstand 24V input. 2 System ground reference. 3 No connection, and must be left floating. 4 FAULT is an open-drain logic output that turns LOW when any protection event occurs. 5 IC .

ISL9211B Charging System Safety Circuit The ISL9211B is an integrated circuit (IC) optimized to provide a redundant safety protection to a Li-ion battery charging system. The IC monitors input voltage, battery voltage, and charge current. When any of these parameters exceeds its limit, the IC turns off an internal N-channel MOSFET to remove power from the charging system to the battery. The IC also monitors its own internal temperature and turns off the N-channel MOSFET when the temperature exce.

ISL9211B Features

* 24V Max Input Voltage

* Supports Up To 2.0A Input Current

* Fully Integrated Protection Circuit for Three Protected Variables

* High Accuracy Protection Thresholds

* User Programmable Overcurrent Protection Threshold

* Responds to Input Overvoltage i

ISL9211B-Renesas.pdf