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3955
FULL-BRIDGE PWM MICROSTEPPING MOTOR DRIVER
PFD REF RC GROUND GROUND LOGIC SUPPLY PHASE D2 1 2 3 4 LOGIC 5 6 7 8 VCC 12 11 10 9 GROUND SENSE OUTA D1 VBB 16 15 14 13 LOAD SUPPLY OUTB D0 GROUND
Data Sheet 29319.41
The A3955SB and A3955SLB are designed for driving one winding of a bipolar stepper motor in a microstepping mode. The outputs are rated for continuous output currents to ±1.5 A and operating voltages to 50 V. Internal pulse-width modulated (PWM) current control combined with an internal three-bit nonlinear digital-to-analog converter allows the motor current to be controlled in full-, half-, quarter-, or eighth-step (microstepping) modes. Nonlinear increments minimize the number of control lines necessary for microstepping.
3955 Datasheet
