Re: [CAD_CAM_EDM_DRO] Questions on allegro uln5804 for my project......

As these driver chips are only rated for 1.25A/phase, why not use the
Allegro 3977 chip instead (up to 2.5A/phase)? This is also a chopper
design, which the 5804 is not.

Regards,
Tony

At 22:42 24/04/2003 +0000, you wrote:

>I am going to use this to drive my stepper motor. My motor is rated
>at 3.72 VDC and 2.5 AmpsDC and the chip is
>
>http://www.allegromicro.com/datafile/5804.pdf
>
>Which is rated at what seems like 1.5 Amps and (the part I am unsure
>about) 35 VDC. If it is really 35 VDC and 1.5 A then it is set, but
>if it is 1.5 A regardless of voltage, then ohhh well.....
>
>Another question, I saw no input for a clock signal on the chip. I
>am assuming the step input would be oscillating since there is no
>dedicated clock input and one shot for a single step. Thanks for any
>help, Gabe.
>
>
>
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Regards,
Tony