Help identify this ic

[abdolah]

a74j01 is an ic in PSU
The PSU MODEL IS : evga supernova nex650g
I CAN'T find the service manual or schematic for it
Leg number 5 & 6 are shorted internally in the ic it makes the PSU
START on it's own not waiting for the pson signal to come

[CDaniel]

https://www.fsp-group.com/en/knowledge-wpr-22.html#thirteen

More than this I can't find , 6601 is basically the code

[magic]

I have no idea where I found this...

As you see, it's a synchronous rectification controller for 12V/5V output forward topology with added regulated 3.3V buck controller.

No pin numbers, sorry, you will have to figure it out from the PCB.

[fzabkar]

https://www.fsp-ps.de/de/news-102.html

https://vlab.su/viewtopic.php?f=46&t=122815

https://i.ibb.co/v10SygD/6601.jpg

It looks like pins 5 & 6 are fed by a Sync winding on the transformer.

[abdolah]

Ok thanks I will try to reverse engineering it .

[abdolah]

Yeah that help a lot actually thanks

[abdolah]

Thanks so much for your help .