SNVSC22A October 2023 – March 2024 LM51772
ADVANCE INFORMATION
This over voltage protection monitors the voltage of the FB-pin
As this threshold is referenced to the V(REF) the OVP1 is still working if one of the tracking features has changed the Vo target value. The OVP protection can be disabled during the Vochange of one of the Vo tracking features.
The converter maintains in regulation even the OVP1 threshold triggers.
The OVP1 is disabled during uSleep to avoid additional leakage current. The OVP signal gets masked that no fault is indicated from this signal during the uSleep operation.
This protection is disabled during the soft-start procedure and if the iFB is used instead of the ext. FB