Parralelling L293

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#1
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Hi,

Can I connect a few L293B chips in parrallel, litterally, pin to pin, cause I need a bit more current than one can give me and the board's already done?

Thanks,

David

There are pointy haired bald people.
Time flies when you have a bad prescaler selected.

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Daqq,
I looked at the datasheet and it does look possible. But in my experience if you are looking for serious current requirements or in need of board space then go for a bridge driver that has the nuts to do it all in one package.

Jim

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Atmel Studio6.2/AS7, DipTrace, Quartus, MPLAB, RSLogix user

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Why not L298D? More current, heatsink, popular, but probably expensive.

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

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The board has already been done for a L293. The L293 *SHOULD* suffice, but I'm asking this in case I underestimated the motors.

There are pointy haired bald people.
Time flies when you have a bad prescaler selected.

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IIRC, SN754410 is pin compatible with L293, probably cheaper (at least the offers that I had), and, if my memory serves me well, it has some improvements inside that include better protections against underestimated loads.

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

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Neither of my parts distributors have that chip in their catalogs. :-(

For now, the system works OK, no problems so far, I'll see when I apply the full voltage if the bridge explodes :-D

There are pointy haired bald people.
Time flies when you have a bad prescaler selected.