Description
The Cytron 3A Dual-Channel DC Motor Driver (MDD3A) is a versatile, high-efficiency motion control solution designed for mobile robotics and compact automation systems. Featuring a discrete MOSFET H-Bridge architecture, the MDD3A supports independent control of two brushed DC motors or one bipolar/unipolar stepper motor, sustaining 3A of continuous current per channel without the need for external heat sinks.
Engineered for seamless integration, the MDD3A includes an onboard buck-boost regulator that provides a stable 5V output (up to 200mA) to power host controllers directly from input voltages as low as 4V. The driver is compatible with logic levels ranging from 1.8V to 12V, ensuring full interoperability with Arduino, Raspberry Pi, and industrial PLCs. With robust reverse-polarity protection and integrated manual test buttons for real-time diagnostics, the MDD3A is a dependable, user-friendly choice for both educational projects and professional prototyping.
Key Features
- Flexible Motor Control: Bi-directional control for two brushed DC motors or one stepper motor, ideal for complex robotic drive-trains.
- Integrated Power Regulation: Onboard buck-boost regulator outputs 5V (200mA), simplifying power management for your host microcontroller.
- Wide Logic Compatibility: Accepts 1.8V, 3.3V, 5V, and 12V logic signals, facilitating direct connection to various control architectures.
- Enhanced Safety: Built-in reverse-polarity protection prevents hardware failure from accidental wiring errors.
- On-Site Diagnostics: Dedicated manual test buttons and LED output status indicators allow for immediate system commissioning without firmware.
- High-Frequency Support: Supports PWM frequencies up to 20kHz for smooth, quiet, and responsive motor velocity control.
Benefits for Industrial Integration
- Simplified Power Distribution: Eliminates the need for external voltage regulators by powering the controller directly from the motor supply.
- Deployment Reliability: Robust electrical protections and thermal-efficient MOSFET design ensure consistent performance in high-duty environments.
- Compact Form Factor: Optimized PCB layout minimizes physical footprint in space-constrained mobile platforms.
- Reduced Troubleshooting Time: Manual buttons allow technicians to isolate mechanical faults from logic errors instantly.
Applications
- Mobile Robotics: Drive solution for AGVs, autonomous rovers, and small-scale mobile platforms.
- Precision Actuation: Stepper motor control for 3D printers, scanners, and custom automated assembly jigs.
- Automated Fixtures: Perfect for bench-top testing rigs requiring responsive brushed DC motor positioning.
- Educational Prototyping: An ideal, fail-safe platform for learning motion control logic and mechatronics.
Package Includes
- 1 x Cytron 3A Dual-Channel DC Motor Driver (MDD3A)
Specifications
| Parameter | Specification |
|---|---|
| Item Type | Dual-Channel DC/Stepper Motor Driver |
| Operating Voltage | 4V to 16V DC |
| Continuous Current | 3A per channel |
| Peak Current | 5A (< 5 seconds) |
| Logic Interface | 1.8V to 12V PWM/DIR |
| Dimensions | 48 (L) x 42 (W) x 13.6 (H) mm |
