Adafruit
Adafruit DRV8871 DC Motor Driver Breakout Board - 3.6A Max
The Adafruit DRV8871 is a single-channel brushed DC motor driver breakout capable of delivering up to 3.6 A peak current with a wide 6.5–45V motor voltage ra...
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The Adafruit DRV8871 is a single-channel brushed DC motor driver breakout capable of delivering up to 3.6 A peak current with a wide 6.5–45V motor voltage range. Its resistor-set current limiting and built-in PWM support make it straightforward to use with virtually any brushed DC motor.
The board includes a 30K current-limiting resistor (pre-set to ~2 A), which can be removed or changed to adjust the limit. Built-in protections include undervoltage lockout, overcurrent protection, and thermal shutdown. Simply connect your motor to the output terminals, supply 6.5–45V DC, and control direction/speed via two logic inputs.
Key Features
- 3.6 A Peak Current – Powerful enough for larger brushed DC motors
- 6.5–45V Motor Voltage – Wide input range for diverse applications
- Up to 5.5V Logic – Compatible with 3.3V and 5V microcontrollers
- Resistor-Set Current Limiting – Default ~2 A, adjustable without inline sense resistor
- PWM Control – Built-in PWM support on IN1/IN2 inputs
- Built-In Protections – Undervoltage lockout, overcurrent, and thermal shutdown
- 565 mΩ Typical RDS(on) – Low resistance for efficient operation
Also Available
- DRV8833 DC/Stepper Motor Driver – Dual H-bridge, 2.7–10.8V (lower voltage, dual channel)
Ideal For
- Robotics with higher-power DC motors
- Motorised mechanisms and actuators
- 12V–24V motor control applications
- Projects requiring adjustable current limiting
Package Contents
- 1× DRV8871 motor driver breakout board (fully assembled and tested)
- 2× 2-pin terminal blocks
- 1× Header strip (soldering required)
Jargon buster
Plain-language definitions for the technical terms used above.
- breakout
- A breakout board carries a small or fine-pitched component and brings its connections out to standard, breadboard- and header-friendly pins. Describing a part as a breakout means it can be wired into a project without soldering directly to the component's tiny contacts.
- DC
- DC means direct current, where electricity flows in one constant direction, as supplied by batteries, USB ports and many plug-pack power supplies. When a product specifies DC, it runs from a DC supply rather than mains AC, so you need to provide the correct voltage and polarity.
- Headers
- Rows of connector contacts on a fixed pitch (commonly 2.54 mm) used to link a board to a breadboard, jumper wires, or another board. They come as male pin headers and female socket headers; when a module ships with pre-soldered headers it can be used straight away, whereas bare pads require soldering the pins yourself.
- 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.
- Terminal block
- A terminal block is a connector that joins wires together in a neat, removable, or serviceable way, usually clamping each wire under a screw or spring instead of soldering. It makes it easier to connect, change, or service wiring without permanent joints.
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