Datasheet Details
| Part number | A3955 |
|---|---|
| Manufacturer | Allegro MicroSystems |
| File Size | 355.27 KB |
| Description | FULL-BRIDGE PWM MICROSTEPPING MOTOR DRIVER |
| Datasheet |
 A3955 Datasheet
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General Description
The A3955 is designed to drive 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 50V.
Key Features
- ±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.