Part Number:DRV8886AT
I am using the DRV8886AT to drive a Sure Step STP-MTR-23055D : 2.8A rated Bipolar Stepper.
With other Stepper Controllers I can run this motor at 2.8A with a 24V supply. With the DRV8886AT, I am only able to get 600mA maximum with a 24V supply.
I am using 15k for RREF, TRQ 100%, 1/8 step size, and DECAY is floating. I have tried various Decay modes and haven't noticed a significant difference.
My Circuit board has 1.25 mm wide 1 oz copper traces that are 35mm long.
Any thoughts on why I cannot get more current supplied to the motor with this driver?