3D Stepper Motor Driver Module for Arduino Projects

Build your own 3D Printer with this Motor Driver Module

This A4988 equipped board is a micro stepper motor driver with a built-in converter. The product can be in full, half, 1/4, 1/8 and 1/16 step mode operation bipolar stepper motor with an output driving performance up to 35 V and + / - 2 A. A4988 includes a fixed current regulator close time, the voltage stabilizer can work in a slow or mixed decay modes. A4988 interface is very suitable for the application of complex microprocessor is unavailable or overload.

In micro step setting, the chopping control for A4988 can automatically select current attenuation mode (slow or mixed). In hybrid damping mode, the initial setting for device is fast attenuation and then changes to slow attenuation. Mix or decaying current control scheme can reduce motors noise and increase the precision stepper and reduce power consumption. Provide internal synchronous rectifier control circuit, in order to improve the pulse width modulation (PWM) operation of power consumption. Internal circuit protection removes overheating lag, under-voltage lockout (UVLO) and crossover current protection.

A4988 QFN package (ES) surface installation is adopted, the size is 5 mm x 5 mm, on the surface layer contains the radiator, and with cooling plate for better heat dissipation. 

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