ماژول کنترلر استپر موتور A4988:

ماژول کنترلر استپر موتور A4988 یک ماژول کامل برای راه اندازی انواع استپرموتورهای دو قطبی می باشد. این ماژول می تواند موتورهایی با ولتاژ کاری تا 35 ولت و جریان 2 آمپر را راه اندازی نماید. مشخصات و ویژگی های این ماژول تقریبا مشابه ماژول DRV8825 است. A4988 با انواع میکروکنترلرها قابل راه اندازی بوده و کاملا با بردهای RepRap نیز سازگار می باشد.

A4988 is a complete micro-stepping motor driver with built-in translator for easy operation. It includes a fixed off-time current regulator, the regulator in slow or mixed decay modes. A4988 converter is the key to the easy implementation. As long as the “step” input inputting one pulse drives the motor one micro-step. There are no phase sequence tables, high frequency control lines, or complex interfaces to program. A4988 interface is very suitable for complex microprocessor is unavailable or is overburdened.

Features:

Simple step and direction control interface, short-to-ground and shorted-load protection.
Five different step resolutions: full-step, half-step, quarter-step, eighth-step, and sixteenth-step.
Intelligent chopping control that automatically selects the correct current decay mode (fast decay or slow decay).
Over-temperature thermal shutdown, under-voltage lockout, and crossover-current protection.
Adjustable current control lets you set the maximum current output with a potentiometer, which lets you use voltages above your stepper motor’s rated voltage to achieve higher step rates.
Internal synchronous rectification control circuitry is provided to improve the pulse-width modulation (PWM) operation power consumption

Specifications:

Step Mode: Full, half, 1/4, 1/8 and 1/16

Output Driver Capacity: 35V, ±2A

Driver Size: 20 x 15mm / 0.78 x 0.59″

Heat Sink Size: 5 x 5mm / 0.19 x 0.19″

Package Includes:
1 x Driver module
1 x Heat Sink

https://components101.com/modules/a4988-stepper-motor-driver-module