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 Post subject: dual 20A mosfet TDSON-8 and smt heatsink attached
PostPosted: 28 Nov 2011, 21:09 
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Joined: 11 Jul 2011, 19:27
Posts: 32
Mosfet: dual n channel 20amp IPG20N
http://www.mouser.com/Semiconductors/Tr ... 0N&FS=True

There are many choices, I narrowed it down to this one as it has low on-resistance and is fully on at 4v gate (3.3v it will peek to 30A)
http://www.mouser.com/ProductDetail/Inf ... h8nw%3d%3d

The SMT heatsink is this one:
http://www.mouser.com/ProductDetail/Wak ... 89NQ%3d%3d
The pattern does not have pads, it just leave a solder mask opening.

This is what you can do with them:
viewtopic.php?p=5011#p5011
notice that I run gate-trace on bottom to max ground plane on top layer to help with cooling.


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