JAJSJZ1B August 2022 – February 2024 TPS543B22
PRODUCTION DATA
When the TPS543B22 is enabled, but the high-side FET and low-side FET are disabled due to a fault condition, the output voltage discharge mode is enabled, turning on the discharge FET from SW to PGND to discharge the output voltage. The discharge FET is turned off when the converter is ready to resume switching, either after the fault clears or after the wait time before hiccup is over.
The output voltage discharge mode is activated by any of the following fault events: