Datasheet Details
| Part number | A4988 |
|---|---|
| Manufacturer | Allegro MicroSystems |
| File Size | 1.18 MB |
| Description | DMOS Microstepping Driver |
| Datasheet |
 A4988 Datasheet
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General Description
The A4988 is a complete microstepping motor driver with built-in translator for easy operation.
It is designed to operate bipolar stepper motors in full-, half-, quarter-, eighth-, and sixteenth-step modes, with an output drive capacity of up to 35 V and ±2 A.
Key Features
- Low Rds(on) outputs.
- Automatic current decay mode detection/selection.
- Mixed and slow current decay modes.
- Synchronous rectification for low power dissipation.
- Internal UVLO.
- Crossover-current protection.
- 3.3 and 5 V compatible logic supply.
- Thermal shutdown circuitry.
- Short-to-ground protection.
- Shorted load protection.
- Five selectable step modes: full, 1/2, 1/4, 1/8, and 1/16.