S4950 Dual Channel H-Bridge DC Brush & Stepper Motor Driver Module
S4950 Dual Channel H-Bridge DC Brush & Stepper Motor Driver Module
S4950 Dual Channel H-Bridge High-Power Motor Driver Module
The S4950 Dual Channel H-Bridge Motor Driver Module is a versatile, high-power drive board designed for makers, engineers, and electronics enthusiasts. Capable of driving two DC brush motors or a single stepper motor, this compact module delivers reliable, precise motor control for robotics, automation projects, CNC machines, and more.
Key Specifications
- Working Voltage: DC 8V – 40V
- Working Current: 3A continuous
- Switch Frequency: 40 kHz
- Channels: Dual channel H-Bridge (Full Bridge / Needle configuration)
- Compatible Motors: DC Brush Motors (×2) or Stepper Motor (×1)
Why Choose the S4950 Motor Driver?
- Dual Motor Control: Independently drive two DC brush motors or combine channels to control a bipolar stepper motor — all from one compact board.
- Wide Voltage Range: Supports DC 8–40V input, making it compatible with a broad range of power supplies and battery configurations.
- Hardware Overcurrent Protection: Built-in overcurrent, overvoltage, and undervoltage hardware protection safeguards both the module and your connected motors.
- Advanced Logic Control: Utilizes a specialized logical control method for smooth, accurate motor direction and speed management.
- 40 kHz Switching Frequency: High-frequency operation minimizes audible noise and improves efficiency in demanding applications.
- Compact & Robust Design: Engineered for easy integration into custom PCB layouts, breadboards, or enclosures.
Ideal Applications
- DIY Robotics & Automation
- CNC & 3D Printer Builds
- RC Vehicles & Drones
- Industrial Control Projects
- Electronics Prototyping & Maker Projects
Package Includes
- 1× S4950 Dual Channel H-Bridge Motor Driver Module
Made in Mainland China.
Note: Due to lighting and screen differences, product color may vary slightly from images. Please allow 1–10 mm variance due to manual measurement.
For guidance on electrical safety and working with motor driver circuits, refer to resources from the U.S. Occupational Safety and Health Administration (OSHA) – Electrical Safety.
Frequently Asked Questions
Q: Can the S4950 motor driver module control a stepper motor?
A: Yes! The S4950 dual channel H-bridge module can be configured to drive a single bipolar stepper motor by combining both channels, or it can independently drive two DC brush motors simultaneously.
Q: What voltage and current does the S4950 motor driver support?
A: The module operates on a wide input voltage range of DC 8V to 40V and supports a continuous working current of 3A, making it suitable for a wide variety of DC brush and stepper motor applications.
Q: Does this motor driver board have any built-in protection features?
A: Yes. The S4950 driver board features hardware-level overcurrent protection, overvoltage protection, and undervoltage protection, helping to keep both the module and your connected motors safe during operation.
Q: What is the switching frequency of the S4950 module?
A: The S4950 operates at a switching frequency of 40 kHz. This high-frequency switching helps reduce audible motor noise and improves overall drive efficiency.