How to route high power S08 ?

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Just curious on how you would route a high powered device like a IRF7389? I`m probably not going to make anything with them anyway, but would be nice to know for the future ;)

http://www.adrirobot.it/datasheet/transistor/pdf/irf7389.pdf

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Just make sure that you don't turn both of them on at the same time. :)

John Samperi

Ampertronics Pty. Ltd.

www.ampertronics.com.au

* Electronic Design * Custom Products * Contract Assembly

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Obviously, but could be fun to watch....

So the traces will survive? I thought 4A required somewhat thicker tracks than that:S

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The tracks can be wider than the pads. 2 mm tracks will take 4A with a 10C temperature rise (1 oz copper).

Leon Heller G1HSM

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Thanks Leon.

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In order to keep in the (ultraconservative) safe side of the life, I use 1mm/A tracks with 1 oz copper (35um, IIRC). So Leon is right about a more normal approach of 0.5mm/A. There are also calculators for this over the net.

Guillem.
"Common sense is the least common of the senses" Anonymous.

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I used the calculator provided with the Pulsonix PCB package.

Leon Heller G1HSM

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This project switched a few amps. Top and bottom shown. Not the best of examples, but perhaps a starting point.

JC

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Thanks for the inputs. I`ll try to design a board and upload it, just for fun :)

Nice board Doc,i have not seen many high current layouts, as you say, good for reference.

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Say, would something like this do? Or should i lose the forks going out of the IC`s?

I thought that if i ever was going to make this, i would most likely do single layer, so the blue is jump-wires...

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