Datasheet Details
| Part number | A3973 |
|---|---|
| Manufacturer | Allegro MicroSystems |
| File Size | 782.44 KB |
| Description | Dual DMOS Full-Bridge Microstepping PWM Motor Driver |
| Datasheet |
 A3973 Datasheet
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General Description
Designed for pulse-width modulated (PWM) current control of bipolar microstepping stepper motors, the A3973 is capable of continuous output currents to ±1 A and operating voltages to 35 V.
Key Features
- ±1 A, 35 V Continuous Output Rating.
- Low RDS(on) DMOS Output Drivers.
- Optimized Microstepping via 6-Bit Linear DACs.
- Programmable Mixed, Fast, and Slow Current Decay Modes.
- 4 MHz Internal Oscillator for Digital Timing.
- Serial-Interface Controls Chip Functions.
- Synchronous Rectification for Low Power Dissipation.
- Internal UVLO and Thermal Shutdown Circuitry.
- Crossover-Current Protection.
- Precision 2 V Reference.
- Inputs Compatible with 3.3 or.