Other Parts Discussed in Thread: PMP8803
We have a POE design based off PMP8803. We are currently failing the conducted emissions testing.
We have found the cause to be down to the slew rate of the main switching FET and increasing R13 on PMP8803 from 10R to a 33R brings us back within an acceptable conducted emissions limit.
The testing + verification for this design was effectively signed off already until we hit this issue and so I'm trying to determine the implications of this change - do we need to re-run bode, transient, startup and other PSU testing or is this change sufficiently minimal that it's unlikely to affect performance?
Any advice you have would be greatly appreciated.