ZHCS477K September 2011 – August 2022 BQ294502 , BQ294504 , BQ294506 , BQ294512 , BQ294522 , BQ294524 , BQ294532 , BQ294533 , BQ294534 , BQ294582 , BQ294592
PRODUCTION DATA
OVERVOLTAGE mode is detected if any of the cell voltages exceeds the overvoltage threshold, VOV for the configured OV delay time, tDELAY. The OUT pin pulls high internally. An external FET then turns on, shorting the fuse to ground, which enables the battery or charger power to blow the fuse. When all of the cell voltages fall below (VOV–VHYS), the device returns to NORMAL mode.