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ADM1278 power TVS layout guidance

Question asked by AllenChang on Jun 9, 2017
Latest reply on Jun 19, 2017 by Marcus

Dear Sir:

We have a layout question about ADM1278 

After we checked the voltage of ADM1278 Vcc pin from HSC side in the simulation SW, still can see spike voltage, so the TVS should be near to HSC to decrease the effect of stray inductance and make sure can clamp spike voltage on HSC.  Would you please confirm if the TVS should be near to PSU…

 

 

Thanks a lot 

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