Hi Team,
Customers feedback they used DC 3500V (60 second) to test ISO7721DR's Maximum transient isolation and they found some chip had been broken. (Test 120 chip, 8 chip is broken, broken is VCC short with GND)
I can't see the Maximum transient isolation DC voltage Vdc in the datasheet. I just saw the Vpk=4242V, which is Maximum transient isolation voltage
Do you have any suggestions for this case? Why have some chips been broken? Can it stand DC 3500V/60 second?
Thanks for your help!