Find files to check ADuM7441 reliability - test isolation.

The customer performs the ADuM7441 chip isolation test, and some chips fail (3 out of 100). Under what conditions are these tests carried out at the ADI plant to isolate the ADuM7441? Can I get confirmation files?

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  • Hi:

    Could you please share more about how customer perform the isolation test?

    ADuM744x is proof tested according to UL1577. Before the test,pins on side 1 and side2 are tied together separately. Then 1200Vrms insulation voltage is applied across isolation barrier for 1 sec. leakage current is monitored and threshold is 5uA.

    Regards

    Chris

Reply
  • Hi:

    Could you please share more about how customer perform the isolation test?

    ADuM744x is proof tested according to UL1577. Before the test,pins on side 1 and side2 are tied together separately. Then 1200Vrms insulation voltage is applied across isolation barrier for 1 sec. leakage current is monitored and threshold is 5uA.

    Regards

    Chris

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