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Innoswitch failure reasons

Posted by: MANASA on

Hi, we r designing an smps of 5V,3A based on der471 application note . Frequently InnoSwitchTM-CE INN2124K is prone to fail by shorting the BPP and the source pin . Please help me in finding the reson behind it.

Comments

Submitted by PI-AP on 04/12/2017

Hi Manasa,

 

Please elaborate the fautl condition , send the corresponding waveforms beore and at the time of fault condition, schematic details and transformer design so that we can analyse the situation.

 

PI-AP