AnsweredAssumed Answered

Failure Analysis of ADuM3201

Question asked by starraytheon on Jul 8, 2013
Latest reply on Jul 8, 2013 by DaveC

Dear Experts,

 

I have used ADuM3201 for basic interface isolation.

 

I made a mistake when I was testing the board in the field.

 

So that the overvoltage stress had been appeared in second side.

 

Then, the ADuM3201 was failure, the pin6 had a special output.

 

The pin3 input was whatever high or low, the pin6 of ADuM3201 had a fixed continuous 1us width pulse output.

 

I think the Watchdog circuit has been damaged, is it correct?

 

I think the ADuM3201 is a good part.

 

I just want to know that how about the failure happens, and what need I do in this status?

 

Add some devices for protection?

 

Thanks!

 

 

Yours Sincerely,

Tom

Outcomes