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The DFRobot DRI0042 is a compact, high-current DC motor driver capable of continuously driving a single motor at up to 15A (with heatsink) from a 12–36V supp...

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The DFRobot DRI0042 is a compact, high-current DC motor driver capable of continuously driving a single motor at up to 15A (with heatsink) from a 12–36V supply. The onboard LM2575 regulator provides a 5V 500mA output for powering an Arduino or other controller, and all control signal inputs include ESD protection.

Direction is controlled via IN1/IN2 logic pins (3.3V/5V compatible) and speed is regulated using a PWM input. The board features under-voltage lockout (UVLO) protection to safeguard your system, and uses pluggable screw terminals for easy wiring.

Note: Before switching motor direction, brake first by setting IN1 and IN2 to LOW, especially at full speed. A 20A fuse is recommended on the power input.

Key Features

  • High Current Output – 12A continuous (no heatsink), 15A (with heatsink), 20A (with active cooling); 110A peak
  • Wide Voltage Range – 12–36V supply (6.5–40V absolute limit)
  • 3.3V/5V Logic Compatible – Works directly with Arduino, Raspberry Pi, and other microcontrollers
  • 5V Regulated Output – 500mA output to power your controller from the motor supply
  • Full Protection – UVLO (under-voltage lockout) and ESD-protected control inputs
  • Compact Size – 55 × 55 × 20 mm

Specifications

  • Supply Voltage – 12–36V DC (limit: 6.5–40V)
  • Continuous Current – 12A (no heatsink) / 15A (with heatsink) / 20A (with cooling system)
  • Peak Current – 110A
  • Control Signal – High: 2.0–5.5V, Low: 0–0.8V
  • Speed Control – PWM (min pulse width: 200 ns)
  • 5V Output – 500mA max
  • Operating Temperature – -25°C to 85°C
  • Mounting Holes – M3
  • Dimensions – 55 × 55 × 20 mm
  • Weight – 42g

Ideal For

  • Mobile robots and autonomous platforms
  • High-current DC motor control in compact spaces
  • PWM speed-controlled motor applications
  • Projects requiring integrated 5V power for a controller

Package Contents

  • 1× 15A single DC motor driver (DRI0042)

Resources

Jargon buster

Plain-language definitions for the technical terms used above.

ESD protection
ESD protection helps protect electronics from damage caused by static electricity discharges. It is useful on development boards because cables, sensors and modules are often plugged and unplugged during prototyping.
motor driver
An electronic circuit that lets a low-power controller switch and control a motor that needs more current than the controller pins can safely provide. Checking motor driver support matters because pumps and motors usually cannot be connected directly to a microcontroller output.
PWM
Pulse Width Modulation is a way for a digital pin to simulate variable output power by switching on and off very quickly. It matters for controlling things like LED brightness, motor speed, or servo-style signals from a microcontroller pin.

Supplier page — dfrobot.com

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