Back-EMF protection on 18V15 controllers


Apologies if this is a regular question but I searched the forum and did not see any immediate answers.

I am wondering if there is back-EMF protection built into the 18V15 motor controllers. I have bought four of them and I’m wondering if I need to add some suppression circuitry myself before I try to drive some pumps? I could not find any circuit diagram for the controller (is it posted somewhere?) so thought that I would ask here instead.

All the best,


The datasheets for the output MOSFETs are posted on the product page. They have integral diodes that will provide flyback protection.