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PMP20878: 2nd side driver IC and transformer for ACF design

Part Number: PMP20878
Other Parts Discussed in Thread: PMP21318

Dear team,

I am looking for PoE 12Vout/24Vout, and found we have PMP20878 and PMP21318.

We would like to use the same transformer in both two different output design.


May I know is that possible to do? 

Per my understood, share the same xfmer cannot optimize efficiency at this two different output.


Could you recommend a 2nd side driver IC for ACF 2nd side FET driving?



  • Hi Ben,

    Sorry for the slow reply. Our PoE expert is on vacation this week and will be back on Monday and can help address these questions. I see an email chain has been started on this topic, so I will close this thread and continue the discussion on email.