Brush DC Drivers
DMOS Driver with Integrated Translator for Bipolar Stepper Motors
A3977
Markets Served
The A3977 simplifies microstepping motor control with its integrated translator, eliminating the need for complex phase-sequence tables. Offers smooth, quiet operation with selectable current decay modes and synchronous rectification.
Product Details
Product Details
Top Features
- ±2.5 A, 35 V output rating
- Low rDS(ON) outputs, 0.45 Ω source, 0.36 Ω sink typical
- Automatic current decay mode detection/selection
- 3.0 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
Target Application
