Pololu High-Power Stepper Motor Driver 36v4

A compact, high-performance breakout for the TI DRV8711 gate driver with external MOSFETs, driving one bipolar stepper at 8 V to 50 V. It handles up to 4 A per phase continuous with no heat sink or forced airflow, and up to 6 A with added cooling. Nine step resolutions from full-step down to 1/256 microstepping, adjustable current limiting, configurable decay modes and adaptive blanking give smooth, quiet motion. Configured over SPI with standard STEP/DIR control; a Pololu Arduino library with example sketches is available.

• Motor supply: 8 V to 50 V
• Up to 4 A/phase continuous (6 A with extra cooling)
• Step modes: full through 1/256 microstepping
• SPI configuration plus STEP/DIR inputs
• Logic compatible with 1.8 V, 3.3 V and 5 V
• Protections: reverse-voltage, under-voltage, over-current
• Back-EMF feedback and stall detection
• Pololu item #3730