Notification 678 – FWD Pin Rating Exceeded

CATEGORY

ISSUE / RESULT

FIX / REFERENCE(S)

Error

The worst case peak inverse voltage stress (PIVS) on the main output is above the FWD pin voltage rating.  This might result in incorrect operation and damage to the device.

The PIVS on the main output can be decreased by using a higher VOR, which corresponds to a lower transformer turns ratio.