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STPA003CD-48X Short circuits and open circuit operation

Question asked by Tatsuyuki Kurosawa on Mar 2, 2018
Latest reply on Apr 16, 2018 by mauro gatti

Hello, team.

 

My customer is using STPA003CD-48X and developing new H/W.

In the datasheet (5.3.1 Short circuits and open circuit operation),

 

>In case of short circuit to ground or Vcc, the amplifier exits from the three-state condition

>only when the output returns inside the limits imposed by an internal voltage comparator.

Could you please explain more details like concrete method to detect the short?

 

>When a short across the load is present, the power stage sees an over-current and is

>brought in protection mode for 100 μs.

What is the threshold current to detect the short?

 

Regards, Kurosawa

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