SLVSGV4A October 2022 – March 2023 TPS62992-Q1
PRODUCTION DATA
The purpose of the discharge function is to make sure there is a defined down-ramp of the output voltage when the device is being disabled, and to also keep the output voltage close to 0 V when the device is off. This can be especially useful for applications with a system wide EN function that removes the output load in conjunction with disabling the power supply.
The output discharge feature is only active after the TPS62992-Q1 has been enabled at least once since the supply voltage was applied (VVIN > UVLO). The internal discharge resistor is connected to the VOS pin. The discharge function is enabled as soon as the device is disabled, in thermal shutdown, or in undervoltage lockout. The minimum supply voltage required for the discharge function to remain active typically is 2 V.