MPX2002 multiple independent outputs and synchronous rectification

DC-DC Power Converters
1

Hi. Humour a diy’er here.

I’ve designed an MPX2002-based flyback converter with 4 outputs.

Unfortunately, it turns out that the 4 outputs need to be independent – no common earth.

The lack of a common earth precludes synchronous rectification.

Can the MPX2002 be used without the SR? If so, what needs to be done to the SRD pin?

Thanks.

2

Hello @dhanslip,

I have reached out to our team and will get back with a response to your query.

3

Hello @dhanslip,

Thank you for your patience. I confirmed with out internal team that MPX2002 cannot be used without the SR MOS as this will trigger SGOP or SR Gate open protection, when a diode is used.