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DPRG: Re: Supplier for SN754410

Subject: DPRG: Re: Supplier for SN754410
From: Jim Brown jbrown at cyberramp.net
Date: Sat Mar 13 07:32:15 CST 1999

At 10:21 PM 3/12/99 -0800, you wrote:
>I don't see anyone using the Texas Instruments SN754410 driver but it
>looks ideal to drive a 0.5 amp stepper as it is rated at 1 amp load or 2
>amp max.  I wonder who is a good supplier.  Quest has it but with a
>shipping charge of $9 and Alllied has it with a minimum order of $25. 
>Both are possible but I would like a cheaper source.  I am being nickel
>and dimed to death.  I have current Tech America and Jade catalogs; also
>last years Digikey, Circuit Specialist, and Jameco.  Ideas? Thanks.
>P.S. I want to drive a 0.5 amp bipolar stepper with it.

I haven't looked at the specs on the TI Part, but have you looked
at the L298 chip?  You can get them locally for $2.50 at Tanners, and
at most other places for around that.  I think the TI part was much
more?  Also the L298 chip is supposed to handle 1-2amps, and maybe
2.5-3 amp peak or something like that.  Also, we have a nice "etch-
your-own-board" pattern on our web page.  Maybe someone else on our
email list will be able to comment better on the TI Part.
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