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2916
UDN2916B
OUT 1A OUT 2A E2 SENSE 2 OUT 2B GROUND GROUND I
02
DUAL FULL-BRIDGE PWM MOTOR DRIVER
VBB LOAD SUPPLY E1 SENSE 1 OUT 1B I 01 GROUND GROUND I 11 PHASE 1 V REF 1 RC 1 LOGIC SUPPLY
1 2 3 4 5 6 7 8 2
24 23
1
22 21 20 19 18 17
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.