The MBDC050-024031 driver is designed to drive DC brush motors at peak currents of up to 3.0A and 35V. An optional external potentiometer (10K) or external voltage (0.5-5VDC) can be used to control the speed as well. The direction of the motor can be preset by the direction control input. To disable energy from the motor, their is a Freewheel input that can be grounded. The fault protection is set for a cycle by cycle motor turn-off. Cycle by cycle over current limiting is done by monitoring the peak motor current and upon an over current of 3A, the motor phases are immediately turned off and held off for the remainder of the internal PMW oscillation.