3PCS A4988 Stepper Motor Driver Module with Heat Sink for Arduino for 3D Printer CNC Machine and for Robotics

Key features

• The A4988 is a DMOS microstep driver with converter and overcurrent protection. It is suitable for driving stepper motors with less than 8V~35V 2A. It can operate bipolar stepper motors in full, half, 1/4, 1/8, and 1/16 stepping modes.
• The A4988 includes a fixed off-time current regulator that can operate in slow or mixed decay modes.
• The converter is the key to the easy implementation of the A4988. Simply input a pulse at the "step" input to drive the motor to generate microsteps. No phase sequence tables, high frequency control lines, or complex interface programming are required.
• The A4988 interface is very suitable for applications where complex microprocessors are not available or are overloaded.
• The adjustable potentiometer allows you to adjust the maximum current output to obtain a better step rate. Automatic current decay mode detection selection. High heat resulting Circuit disconnection, undervoltage lockout, crossover current protection. Ground short protection and load short protection.

Features: 1. Suitable for driving stepper motors under 8V~35V 2A. 2. Very simple step direction control interface. 3. Five different stepped modes: full, half, 1/4, 1/8 and 1/16. 4. Adjustable potentiometer can adjust the maximum current output to get better step rate. 5. Automatic current decay mode detection selection. 6. High heat resulting circuit disconnection, undervoltage lockout, crossover current protection. 7. Ground short protection and load short protection. 8.Mixed with slow current decay modes. 9.Synchronous rectification for low power dissipation. 10.Adjustable current control lets you set the maximum current output with a potentiometer. 11.The drive current: 2A (best to install the heat sink). Specifications: 3.3 and 5 V compatible logic supply Size: 20 x 15 x 11mm Heat sink: 9 x 9 x 5mm Color: Red Applications: Widely used in Stepper motors, 3D printer, small CNC machines, engraving machines, Supported 3d printers like Prusa Mendel, ultimaker, printbot and so on. Package contains: 3PCS A4988 Stepper Motor Driver

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