Cytron MD30C DC Motor Driver 30Amp 5V-30V
The MD30C is a compact, fully NMOS H-bridge DC motor driver engineered to control a single brushed DC motor. It focuses on efficient switching and thermal-friendly operation so that external heatsinks or fans are generally unnecessary. Built-in protections and flexible input options make the board practical for hobbyist and embedded projects. Its compact footprint and simple connectors make it easy to integrate into builds.
In standalone mode the board offers onboard switches and a speed potentiometer, with jumper-selectable inputs that let users choose internal or external control sources. Visual indicators and manual test buttons provide quick feedback and allow diagnostic checks without extra tools. The layout supports both terminal and soldered connections for different current-handling needs. This design reduces setup time and simplifies field adjustments during testing.
When used with a microcontroller, the MD30C accepts standard logic-level control signals and supports multiple PWM control strategies for smooth motor behavior. Thoughtful jumper configurations and startup recommendations help ensure predictable motor states such as braking or rotation direction. Clear documentation and jumper labels guide correct configuration so beginners can get reliable results. Overall, the MD30C presents a user-friendly balance of control flexibility and robust protection and reliability.
Features:
- Bi-directional control for one brushed DC motor.
- Motor voltage support (range selectable via manual).
- Maximum continuous and peak current handling (as noted in manual).
- Reverse polarity protection.
- 3.3V and 5V logic-level input compatibility.
- Fully NMOS H-Bridge design (improved efficiency, typically no heatsink required).
- Onboard PWM generator with switches and potentiometer for standalone operation.
- Support for both locked-antiphase and sign-magnitude external PWM operation.
Board Layout:
- Power Terminal Block
- Input
Pin No. Pin Name Description 1 GND Ground 2 PWM PWM input for speed control 3 DIR Direction Input - PWM Source Selector
PWM Source JP4 Setting JP6 Setting Internal Potentiometer INT POT INT PWM External Potentiometer EXT POT INT PWM External PWM Signal X (Don’t Care) EXT PWM - Internal PWM Potentiometer
- External PWM Potentiometer Port
- Test Button A
- Test Button B
- Motor Terminal Block
- Red LED A.
- Red LED B
- Green Power LED
Specifications:
| Parameter (as listed) | Min | Typical | Max | Unit |
|---|---|---|---|---|
| Power Input Voltage (Motor supply voltage): | 5 | — | 30 | V |
| IMAX (Maximum Continuous Motor Current): | — | — | 30 | A |
| IPEAK (Peak Motor Current): | — | — | 80 | A |
| IIDLE (Idle Current): | — | — | 100 | mA |
| VIOH (Logic Input – High Level): | 3 | — | 5.5 | V |
| VIOL (Logic Input – Low Level): | 0 | — | 0.5 | V |
| Maximum PWM Frequency: | — | — | 20 | kHz |
Dimension:
Applications:
- Robotic Vehicle Mobility Systems.
- High-Torque Industrial Automation Actuators.
- Electric Scooter and Bike Wheel Controllers.
- Precision CNC Machine Feed Drives.
- Automated Agricultural Machinery Controls.
- Heavy-Duty Conveyor Belt Speed Regulation.
- Winch and Hoist Lifting Mechanisms.
- Animatronic Prop Movement Systems.
Package Contents:
- 1x MD30C 30A DC Motor Driver (REV 2.0)
- 4x plastic spacer
- 1x 2510 PCB Connector – 3 Ways (Female)
- 3x 2510 Terminal Pin
| Datasheet: | MD30C User’s Manual | |||
| Certificate: | UKCA_EMC | UKCA RoHS | FCC | CE, ROHS, FCC |
| Official Reseller: | Makers Electronics |
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