How to determine resister and capacitor values for a STK672-series stepper motor driver?

Thread Starter


Joined Aug 13, 2019
I have a number of STK672-110, STK672-532 and STK672-540 components that originally drove various stepper and servo motors in two different optical scanning machines (sort of antique scanners but large format, hardware was c.2008 vintage).

Datasheet for the -110 is here:
the -532 is here:
and the -540 is here:

I am hoping someone can walk me through the steps of deciding what values to use for the other components, as I am totally new to doing this stuff and can't make sense of what to do to make them work again. Any input and elaboration on how to approach the problem is needed.