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ADUM140x failure mode (by EOS, maybe)

Question asked by Tak32161 on Mar 27, 2018
Latest reply on Aug 7, 2018 by Tak32161

Hello.

 

A ADUM1400 has failed.

Regardless of input voltage, only one channel outputs high level.

The other three channels are operating normally.

I suspect the cause is that the input voltage has exceeded the absolute maximum rating or ESD.

Does ADUM1400 break down due to a large voltage or ESD?

 

Thank you.

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