Cytron MDD20A - two-channel motor driver 30V/20A

Product description: Cytron MDD20A - DC 30 V / 20 A dual channel motor controller

Dual channel DC motor controller. Supply voltage ranges from 6 V to 30 V, maximum current per channel is 20 A for continuous operation and60 A of instantaneous current. The controller can operate with logic voltages of 1.8 V; 3.3 V; 5 V and 12 V making it compatible with most modules such asArduino, Raspberry Pi,PLC driversetc. The module has over temperature protection,undervoltage switchandover current protectionwith active limit. The controller is equipped with a button for fast motor testing. On the board there are LEDs signaling work of individual motors.

MDD20A dual channel controller.

Leads of the Cytron Maker Nano module.

Pinouts of MDD20A dual channel motor controller

The controller is equipped with 6 screw terminals from which it receives information from the microcontroller about the direction and speed of rotation of the motors, and 6 screw terminals to which the motors and power supply are connected. TheCytron MDD20Acan be controlled viaPWMinputs. The logic voltage is1.8V, 3.3V, 5Vor12V, compatible with most controllers such asArduino,Raspberry Pi, PLC.

Motor connector Description Controller connector Description M1 Output A Connector for the first motor, output A. DIR 1 Direction of rotation of M1 motor. M1 Output B Connector for the first motor, output B. PWM 1 Speed of rotation of M1 motor. VB+ Positive electrode - power supply to the module. DIR 2 Direction of rotation of motor M2. VB- Negative electrode - power supply to the module. PWM2 Speed of rotation of the M2 motor. M2 Output A Second motor connector, output A. GND System ground. M2 Output B Connector for second motor, output B. GND GND of the circuit.

The truth table shows how to feed the signal to the pins to control the motor.

PWM DIR Output A Output B Sinik Low X (any state) Low Low Stands High Low High Low Forward movement High High Low High Reverse motion

Cytron MDD20A specification - DC 30 V / 20 A dual channel motor controller

• Supply voltage: from 6 V to 30 V
• Logic part voltage: 1.8 V, 3.3 V, 5 V, 12 V
• Current per channel: 20 A (momentary 60 A)
• Number of channels: 2
• PWM speed control frequency: up to 20 kHz
• Full H NMOS bridge for better performance without heat sinks
• 2 buttons for quick testing
• Dimensions: 88.9 x 78.7 mm

MDD20A motor controller.

Useful links

• Cytron MDD20A manufacturer website
• Documentation of the module
• Arduino library with examples
• CAD files