M51976FP pinout?

alan canning scanning.cc at gmail.com
Tue Aug 10 11:29:06 CDT 2010


This part is a bitch to find. I had the same results as you with the
exception of the following;

Abstract: .. The M51996A is equivalent to the M51976 with externally
resettable OVP overvoltage protection circuit.

Not much help but it is a start.

Best regards, Steven

On 5/29/10, Tony Duell <ard at p850ug1.demon.co.uk> wrote:
> I am looking for a pinout or datasheet for a chip labelled M51976FP. It
> appears to be made by Mitsubishi, it's a SMPSU controller in a 20 pin
> SOIC package.
> I have the data on the M51977, which is similar (I think), but some pins
> are clearly different.
> Looking on datasheetarchiver and digchip didn't find anything. And a
> google search (as ever) found plenty of people who sould sell me 100000
> of them, but nothing else).
> [It's uised in a PSU modile in an HP tape drive that I am working on, so
> it does have som relevance to classic computers0.
> Thanks in advance for any help
> -tony

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