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ADA4870 and short circuit immediately after power up

Question asked by Mochi on Nov 16, 2017
Latest reply on Dec 11, 2017 by iamPhil

Hi

My customers are suffering from cases where the ADA4870 encounters a short circuit shortly after power up.
After initial power-up, the ON pin must be pulled low to ensure that the is is turned on.
At that time, the short circuit burns the ADA4870 during the power on sequence.

 

If the ON pin is left floating, will the ADA4870 be able to notify the short circuit immediately after turning on the power supply?
Or is it impossible to notify the short circuit unless the control circuit pulls ON pin once to low level?

 

 

Best regards

Outcomes