Part Number:DRV8881
My customer is using the DRV8881 to drive (2) small motors. They have the following question:
"To protect the motors I’ve limited the current to them by changing the sense resistors to 7.5 ohms instead of the other settings.
The motors aren’t performing as expected. This could be a motor problem and I’m working towards getting setup to measure the actual current going to them, but figured I would ask if perhaps the DRV8881 has a maximum current sense resistor size? Perhaps too large a value upsets something in the feedback loop and instead I should be adjusting the reference voltage, decay, etc."
Thanks,
Brian