UDN2916B Datasheet PDF - Allegro MicroSystems

The UDN2916B, UDN2916EB, and UDN2916LB motor drivers are designed to drive both windings of a bipolar stepper motor or bidirectionally control two dc motors. Both bridges are capable of sustaining 45 V and include internal pulse-width modulation (PWM) control of the output current to 750 mA. The outputs have been optimized for a low output saturation voltage drop (less than 1.8 V total source plus sink at 500 mA).

●For PWM current control, the maximum output current is determined by the user’s selection of a reference voltage and sensing resistor. Two logic-level inputs select output current limits of 0, 33, 67, or 100% of the maximum level. A PHASE input to each bridge determines load current direction.

●FEATURES

●■ 750 mA Continuous Output Current

●■ 45 V Output Sustaining Voltage

●■ Internal Clamp Diodes

●■ Internal PWM Current Control

●■ Low Output Saturation Voltage

●■ Internal Thermal Shutdown Circuitry

●■ Similar to Dual PBL3717, UC3770