Part Number: UCC28070
One customer is evaluating pin to pin short test, but test result was NG because PFC output became overvoltage and Electric capacitor open valve.
Please let me know about three points below for over voltage protection;
Reference circuit is attached below;
①When either RA or RB occur open or short for any accident, is there any protection circuit?
（It is NG for Cout open valve）
②When either RA or RB occur open or short for any accident, I think that Vvsense voltage is not increase (start OVP).
Is there OVP function for PFC output side?(the other than VSENSE pin's OVP)
③Is there any protection function in the condition of pin to pin short testing?
※Above tests are need to request the safety standard.
Best regards,
Satoshi