The Dual Channel 3A DC Motor Driver is an excellent entry point for anyone looking to work with robot motors or begin experimenting with motor control . This compact yet capable driver supports two brushed DC motors or one bipolar/unipolar stepper motor, operating within a 4V16V range. Built with a discrete MOSFET Hbridge, it can deliver 3A continuous current per channel without requiring an additional heatsink.

To simplify testing, the module includes two sets of onboard test buttons , each corresponding to an independent motor channel. These allow you to verify motor operation without connecting a controller, making initial setup and troubleshooting far more convenient. The board also provides a 4V5V regulated output, enabling direct power supply to your controller.

The driver supports a wide input voltage range of 1.8V12V and is compatible with popular development platforms such as Arduino and Raspberry Pi. It also features reverse polarity protection , reducing the risk of damage caused by wiring mistakes and ensuring more reliable operation.

Features

• Bidirectional control for two brushed DC motors.
• Control one unipolar or bipolar stepper motor.
• Operating Voltage: DC 4V to 16V
• Maximum Motor Current: 3A continuous, 5A peak
• Buckboost regulator providing 5V output (200mA max).
• Onboard buttons for quick testing.
• LED indicators for motor output state.
• Logic input compatibility: 1.8V / 3.3V / 5V / 12V (Arduino, Raspberry Pi, PLC, etc.).
• PWM frequency up to 20kHz (output frequency matches input).
• Reverse polarity protection

Interface

Input Logic & Stepper Interface

Certification