|
|
|
|
|||||||
| Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets. |
 |
|
|
Thread Tools |
25th Nov 2020, 12:47 pm
|
#1 |
|
Dekatron
Join Date: Jun 2009
Location: Staffordshire Moorlands, UK.
Posts: 4,188
|
i.d a chip
Just after a second opinion on an SOIC8 chip from an SMPSU.
I think it's a UCC3808 (or chinese clone) but can't be sure. It drives the primary of a push-pull gate drive transformer from pins 6-7. It's too small to photograph but I've reproduced the writing here. 
__________________
Kevin |
|
|
|
25th Nov 2020, 1:45 pm
|
#2 |
|
Hexode
Join Date: Aug 2009
Location: Liverpool, Merseyside, UK.
Posts: 499
|
Re: i.d a chip
Yes I’d agree that’s the one, 3808 pins 6&7 are the outputs so that makes sense.
|
|
|
|
|
25th Nov 2020, 1:48 pm
|
#3 |
|
Nonode
Join Date: Oct 2008
Location: Warsaw, Poland and Cambridge, UK
Posts: 2,117
|
Re: i.d a chip
That looks like the Unitrode logo in the bottom left (the underlined U). I'd say it's a bona fide UCC3808-1. TI bought Unitrode some time ago.
https://www.ti.com/product/UCC3808-1 Chris
__________________
What's going on in the workshop? http://martin-jones.com/ |
|
|
|
|
25th Nov 2020, 8:35 pm
|
#4 |
|
Dekatron
Join Date: Jan 2004
Location: Newcastle upon Tyne, Tyne & Wear, UK.
Posts: 6,447
|
Re: i.d a chip
Yes, quite a useful little chip, app notes should be available on the web
Ed |
|
|
|
25th Nov 2020, 10:36 pm
|
#5 |
|
Dekatron
Join Date: Jun 2009
Location: Staffordshire Moorlands, UK.
Posts: 4,188
|
Re: i.d a chip
thanks folks!
__________________
Kevin |
|
|
|
