SLUSE99C September 2021 – January 2023 BQ25180
PRODUCTION DATA
Refer to the PDF data sheet for device specific package drawings
Input overvoltage protection protects the device and downstream components connected to SYS, and BAT against damage from overvoltage on the input supply. When VIN > VIN_OVP, a VIN overvoltage condition is determined to exist. During the VIN overvoltage condition, the device turns the input FET OFF, battery discharge FET ON, sends a single 128-μs pulse on INT, and the fault bit (VIN_OVP_FAULT_FLAG) is updated over I2C. The VIN_PGOOD_STAT bit also is affected by the VIN overvoltage condition as the VIN powergood condition will fail. Once the VIN overvoltage condition is removed (VIN ≤ VIN_OVP - VIN_OV_HYS ), the VIN_OVP_STAT bit is cleared and the device returns to normal operation. Thereafter, a VIN powergood condition is determined if VIN > VBAT + VSLEEPZ and VIN > VIN_UVLO.