This is an AMIS-30543 Stepper Motor Driver Carrier. This stepper motor driver lets you control one bipolar stepper motor at up to 3 A output current per coil. This is a breakout board for ON Semiconductors AMIS-30543 micro-stepping bipolar stepper motor driver, which features SPI-adjustable current limiting, 11 step modes (from full-step through 1/128-step), back-EMF feedback that can be used for stall detection or optional closed-loop control, and over-current and over-temperature protection. The board operates from 6 V to 30 V and can deliver up to approximately 1.8 A per phase without a heat sink or forced air flow (it is rated for 3 A per coil with sufficient additional cooling).

Note: For more technical data kindly refer to the attached datasheet

Features:

1. Standard step and direction control interface
2. SPI interface for configuring settings (e.g. step mode, current limit, sleep) and reading status registers
3. Speed and load angle output that can be used for stall detection or closed-loop control of the torque and speed based on the load angle
4. Eleven different step modes: full-step (uncompensated, compensated 1-phase, or compensated 2-phase), half-step (uncompensated or compensated), 1/4-step, 1/8-step, 1/16-step, 1/32-step, 1/64-step, and 1/128-step
5. SPI-programmable current control (from 132mA to 3A) enables your microcontroller to adjust the peak-current limit on the fly as more or less torque or speed is needed
6. Intelligent chopping control that automatically selects the correct current decay mode (fast decay or slow decay)
7. Low-EMI PWM with SPI-selectable voltage slopes

Package Includes:

1 x Pololu AMIS-30543 Stepper Motor Driver Carrier