Datasheet Details
| Part number | A5977 |
|---|---|
| Manufacturer | Allegro |
| File Size | 1.03 MB |
| Description | Microstepping DMOS Driver |
| Datasheet |
 A5977 Datasheet
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General Description
The A5977 is a complete microstepping motor driver with built-in translator.
It is designed to operate bipolar stepper motors in full-, half-, quarter-, and eighth-step modes, with output drive capability of 40 V and ±2.8 A.
Key Features
- ±2.8 A, 40 V output rating.
- Low RDS(on) outputs, 0.22 Ω source, 0.15 Ω sink typical.
- Automatic current decay mode detection/selection.
- 3 to 5.5 V logic supply voltage range.
- Mixed, fast, and slow current decay modes.
- Home output.
- Synchronous rectification for low power dissipation.
- Internal UVLO and thermal shutdown circuitry.
- Crossover-current protection.
- Short-to-ground protection.
- Short-to-VBB.