Motor driver design ideas
January 25, 2011
I've decided to rebuild my L239D based motor controller a bit since A) it looks like crap and B) it uses to many pins and C) can't handle larger loads.
The plan is to piggyback two SN754410 instead of one L239D and add a tristate switch with transistors for the HIGH/LOW part.
The first question I have now is although the SN754410 is pin compatible with L239D, can I just mount two on top of each other and get 2x1A?
And to the second question; will I need protection diodes and which do you recommend in that case?
Or do you have some other completely different idea? I want a really good motor driver. I intend to build two or maybe three to use in future projects.