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DQ542MA Stepper Motor Driver

(3 reviews) Write a Review
  • DQ542MA Stepper Motor Driver
  • DQ542MA Stepper Motor Driver
  • DQ542MA Stepper Motor Driver
  • DQ542MA Stepper Motor Driver
  • DQ542MA Stepper Motor Driver
  • DQ542MA Stepper Motor Driver


The DQ542MA Stepper Motor Driver is a type of two-phase hybrid stepping motor driver. It is designed for use with 2-phase hybrid stepper motor of all kinds with 42mm to 86mm outside diameter and less than 4.0A phase current.  

This high power driver is widely used in middle and big size numerical control devices such as curving CNC machine, Computer embroider machine, packing machines and so on.

"The circuit that it adopts is similar to the circuit of a servo controller which enables the motor to run smoothly almost without noise and vibration!"

Product Features

  • Average current control, 2-phase sinusoidal output current drive
  • Opto-isolated signal I/O
  • Overvoltage, under voltage, overcorrect, phase short circuit protection
  • 15 channels subdivision and automatic idle-current reduction
  • 8 channels output phase current setting
  • Offline command input terminal
  • Motor torque is related with speed, but not related with step/revolution
  • High start speed & High holding torque under high speed


What is Included

  • (1) DQ542MA Stepper Motor Driver


Product Specifications

  • Input Voltage: 18-50 VDC
  • Input Current: < 4A
  • Output Current: 1.0A~4.2A
  • Consumption: 80W; Internal Insurance: 6A
  • Working Temperature: -10℃~45℃
  • Stocking Temperature: -40℃~70℃
  • Humidity: Not condensation, no water droplets
  • Gas: Prohibition of combustible gases and conductive dust
  • Weight: 200G 

Assembly / Support / Documentation:

Easy follow along assembly video – top notch awesome community support – open source files and documentation and examples.

Assembly Support

3D Model Resources:

Free 3D models of the OpenBuilds Component Library.

Sketchup Files CAD Files
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Product license information available here

3 Reviews

  • 5

    Posted by Unknown on Jun 5th 2019


  • 5
    Motor driver

    Posted by John OBrien on Apr 14th 2019

    This motor driver has a built in fuse that comes in handy if you mess things up. Excellent product that I have used for my build and would recommend it to anyone using open build NEMA 23 motors.

  • 5
    Good 5 volts driver

    Posted by Thibaut on Sep 13th 2018

    Ordered 4 of those, one was malfunctioning out of the box but Openbuilds sent a new one rightaway with no fees $0.00 THANKS OPENBUILDS

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