Homebrew PCBs

Tony,
I agree, the L298N has an absolute Max V or 50... That doe snot mean it
will work at 50V all day everyday !
http://www.futurlec.com/StepperMotorController.html
However even though they are liberal with interpretation of the spec's.
for $18.00 it is a very good price.

This fall I'm planning to re-do my design and will make it a 5 Amp
output stage and include my  "Smart Current Monitor" and RPM meter in
the same design.

for $18.. it's s steal... but keep the Voltage at 35-40V and expect the
current to be about 2Amps.

Hans W


Tony Jeffree wrote:

>  At 07:56 12/06/2002 -0700, you wrote:
> >I also saw a link for:
> http://www.futurlec.com/StepperMotorController.html
> >which are 4A bipolar stepper drivers for only $18 ea. I haven't used
> them,
> >so can't comment on their capabilities. You should be able to use
> your
> >unipolar motors in a bipolar fashion.
>
> I believe the spec of this board to be a little misleading - the L298
> (which this board uses as its output stage) is rated at 2A/phase
> continuous. You won't be able to drive a 4A/phase motor with this!
> Also,
> you would be well advised to keep the voltage below 50V.
>
> Check the L298 spec sheets out on the SGS Thompson site:
>
> http://us.st.com/stonline/index.shtml
>
> Use the product search on "L298" to find the datasheets.
>
>
> Regards,
> Tony
>
>
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