Description
The A3979 is a complete microstepping motor driver with built-in translator, designed as a pin-compatible replacement for the successful A3977, with enhanced microstepping (1/16 step) precision.
Features
- ±2.5 A, 35 V output rating.
- Low RDS(On) outputs: 0.28 Ω source, 0.22 Ω sink, typical.
- Automatic current decay mode detection/selection.
- 3.0 to 5.5 V logic supply voltage range.
- Slow, Fast or Mixed current decay modes.
- Home output.
- Synchronous rectification for low power dissipation.
- Internal UVLO and thermal shutdown circuitry.
- Crossover-current protection.
A3979 Datasheet
