A3955 - FULL-BRIDGE PWM MICROSTEPPING MOTOR DRIVER

Product Overview

Allegro MicroSystems

Part number	A3955
Manufacturer	Allegro MicroSystems
File Size	355.27 KB
Description	FULL-BRIDGE PWM MICROSTEPPING MOTOR DRIVER
Datasheet	A3955 Datasheet
Additional preview pages of the A3955 datasheet.

The A3955 is designed to drive one winding of a bipolar stepper motor in a microstepping mode.

±1.5 A continuous output current.
50 V output voltage rating.
Internal PWM current control.
3-bit nonlinear DAC.
Fast, mixed fast/slow, and slow current-decay modes.
Internal transient-suppression diodes.
Internal thermal shutdown circuitry.
Crossover-current and UVLO protection Packages: Package B, 16-pin DIP with exposed tabs Package LB, 16-pin SOIC with internally fused pins Not to scale.

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Published: Mar 23, 2005 |