SLOSE51A June 2020 – December 2020 DRV8428E
ADVANCE INFORMATION
The regulated current (IREG) is set by the VREFx analog voltage. When starting a brushed-DC motor, a large inrush current may occur because there is no back-EMF. Current regulation will act to limit this inrush current and prevent high current on startup. The regulated current (IREG) can be calculated as IREG (A) = VREFx (V) / KV (V/A) = VREFx (V) / 3 (V/A).