A4950 Dual DC Brush Motor Driver Module 7.6–40V 2A PWM
A4950 Dual DC Brush Motor Driver Module 7.6–40V 2A PWM
A4950 Dual DC Brush Motor Driver Module — 7.6–40V, 2A, PWM Control
Take your robotics and electronics projects to the next level with this high-performance A4950 Dual DC Brush Motor Driver Module. Engineered to outperform the popular TB6612, this compact driver board gives you precise bidirectional control over two DC brush motors simultaneously — perfect for balance cars, rovers, robotic arms, and more.
Key Features
- High-Performance Chip: Powered by the A4950 IC, delivering performance that exceeds the TB6612 motor driver.
- Wide Voltage Range: Operates at DC 7.6V to 40V, making it compatible with a broad range of battery and power supply setups.
- 2A Current Limit Protection: Built-in current limiting ensures the module caps output at 2A under overload conditions — the circuit stays powered and simply limits current rather than shutting down.
- Dual Motor Control: Simultaneously control the forward and reverse rotation of 2 DC brush motors with a single module — ideal for two-wheeled balance cars and dual-drive platforms.
- Simple PWM Interface: Requires only 4 PWM pins for full bidirectional control; as few as 2 PWM pins if reverse rotation is not needed. Far simpler to wire and program than the L298N.
- Recommended Drive Frequency: 500 Hz – 30 kHz PWM frequency range for smooth, efficient motor operation.
- Quality Construction: Built with premium components for stable, reliable performance across a wide range of operating conditions.
Specifications
| Driver Chip | A4950 |
| Supply Voltage | DC 7.6V – 40V |
| Output Current | 2A (current limit protection, no power-off on overcurrent) |
| PWM Frequency | 500 Hz – 30 kHz (recommended) |
| Motor Outputs | 2 × DC Brush Motor |
| Control Pins | 4 PWM pins (2 if reverse not required) |
| Country of Origin | Made in Mainland China |
What's in the Box
- 1 × A4950 Dual Brush Motor Driver Module
Notes
- Due to screen calibration differences, colors may vary slightly from product images.
- Please allow ±1 mm – 1 cm variance due to manual measurement.
Learn More About Motor Driver Electronics
For guidance on electronics standards and safety, visit the U.S. Consumer Product Safety Commission (CPSC) for relevant consumer electronics safety information.
Frequently Asked Questions
Q: How does the A4950 motor driver module compare to the TB6612?
A: The A4950 dual brush motor driver module offers superior performance compared to the TB6612, supporting a wider voltage range (up to 40V) and the same 2A current output with built-in current limiting protection. It is also simpler to interface, requiring fewer PWM pins than older drivers like the L298N.
Q: Can I use this A4950 motor driver board with an Arduino or Raspberry Pi?
A: Yes. The module's PWM pin interface is compatible with popular microcontrollers such as Arduino, Raspberry Pi, and STM32 boards. You only need 2–4 PWM GPIO pins to control both motors, making integration straightforward with standard motor control libraries.
Q: What happens if the motor draws more than 2A?
A: The A4950 driver board features built-in current limit protection. Rather than cutting power entirely, the module automatically caps the output current at 2A, protecting both the driver and your motors while keeping the circuit operational.
Q: Is this module suitable for a balance car or two-wheeled robot?
A: Absolutely. The module can independently control two DC brush motors — including bidirectional rotation — making it an ideal single-module solution for two-wheeled balance cars, differential-drive robots, and similar dual-motor platforms.