Has any body got the data sheet for this IC
S03525AN
thanks
Barry Wilkins
S03525AN
thanks
Barry Wilkins
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Re: Smpsu ic
Are you sure its not SG3525AN ??Last edited by R_J; 04-02-2018, 03:49 PM. -
Re: Smpsu ic
Hi, you might be right it is very difficult to read because it is on a daughter board standing upright,I was trying to read it with a mirror.
thank you very much for your reply.
BarryComment
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Re: Smpsu ic
Good heavens! I haven't laid eyes on one of those (well, actually its compliment, the SG3527) in (mumble, mumble) years! The two ICs are improved versions of the venerable SG3524. One of the improvements was totem pole output drive pins. Another, IIRC, was improved dead-time control (to prevent destructive cross-conduction). It's a nice mature voltage mode PWM IC.PeteS in CA
Power Supplies should be boring: No loud noises, no bright flashes, and no bad smells.
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Hello everyone. 😀
As per thread title, this unit has a serious SMPSU fault. It blows F1001, which is a 10A M205 in the phase from the mains input.
Very first thing I tried, was simply replacing the fuse, but the replacement ceramic fuse blew immediately.
Looking at the schematic for this PSU, I then removed what I thought was the next likely candidate: D1001 - the HV main bridge rectifier.
This isolated the fault(no longer blows the main fuse), but does not point me to the actual fault.
There are no devices that have exploded or otherwise show signs...
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