I am using a S12 ZVML31 for a sensorless BLDC application. When the voltage drops down to 5.8V I do not get a GDUF error due to low voltage. Instead the signals on high side are switched with the low side for 400us.
Please find attache a scope screenshot.
purple - HD pin
blue - high side gate
yellow - low side gate
green - can be ignored
The voltage drop on HD is due to an active short on the lowside, for breaking.
Does anyone know this Problem?
all the best,