Hi team,
When the failure event occur, the device have two performances, one is Vin=Vout and the other is Vout =0V.
Could you kindly explain under what situation will cause theses two different performance?
Thanks and best regards,
Jamie
This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
Hi team,
When the failure event occur, the device have two performances, one is Vin=Vout and the other is Vout =0V.
Could you kindly explain under what situation will cause theses two different performance?
Thanks and best regards,
Jamie
Hi Jamie,
Usually when any buck converter is damaged due to too much voltage, the HS FET and/or LS FET is becomes damaged causing a short. If the HS FET is damaged, you would see VIN=VOUT. If the LS FET is damaged you would see SW = 0V and through the inductor you would also see VOUT = 0V. Sometimes both FETs are damaged and you would see VIN=VOUT=0V.
Best Regards,
Anthony