I am using the DRV8231DSGR in my design to drive an actuator which contains a drive motor inside it.....
As soon as my actuator draws more than 1.8A in current, the DRV8231 internal over current protection gets tripped and I have no idea why.
My RSENSE resistor value is 90mΩ which according to your own datasheet should allow VREF = 3.3V / (10X0.09) = 3.6A. I specifically picked this value as I wasn't sure if the device would protect itself under extreme situations.
In anycase - why is the OCP tripping almost 50% below its rated threshold?
Can somebody please respond!!
Thanks,
Cole