SLLSFQ7 November 2023 MCF8329A
PRODUCTION DATA
If at any time the voltage on the GVDD pin falls lower than the VGVDD_UV threshold voltage for longer than the tGVDD_UV_DG time, the device detects a GVDD undervoltage event. After detecting the GVDD_UV undervoltage event, all of the gate driver outputs are driven low to disable the external MOSFETs, the charge pump is still running and nFAULT pin is driven low.
The device can be configured in a latched fault state or retry mode upon a GVDD_UV condition using the GVDD_UV_MODE bit. With GVDD_UV_MODE = 0b, normal operation resumes after the GVDD_UV condition is cleared and a clear fault command is issued through the CLR_FLT bit. With GVDD_UV_MODE = 1b, normal operation resumes after the GVDD_UV condition is cleared and a time period of tLCK_RETRY is elapsed.