JAJSLR5E december 2011 – april 2021 BQ2946
PRODUCTION DATA
OVERVOLTAGE mode is detected if the cell voltage exceeds the overvoltage threshold, VOV, for configured OV delay time. The OUT pin is activated, internally pulled high, after a delay time, tDELAY. An external FET then turns on, shorting the fuse to ground, which allows the battery and/or charger power to blow the fuse. When the cell voltages fall below (VOV – VHYS), the device returns to NORMAL mode.