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3Amp 4V-16V DC Motor Driver (2 Channels)

3Amp 4V-16V DC Motor Driver (2 Channels)

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  • Product Code: MDD3A
  • Warranty Period: 12 months
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Looking for a motor driver for your mobile robot? Want to drive a stepper motor? Worry not! MDD3A is able to control two brushed DC motors or single bipolar/unipolar stepper motor from 4V to 16V. With discrete MOSFETs H-Bridge design, this motor driver is able to support 3 Amp per channel continuously without any additional heatsink.

The onboard test buttons and motor output LEDs allow functional test of the motor driver in a quick and convenient way without hooking up the host controller. Buck-boost regulator which produces 5V output from input as low as 4V can be used to power the host controller.

MDD3A can be controlled with wide input logic voltage range from 1.8V to 12V, it’s compatible with a wide variety of host controller (e.g. Arduino, Raspberry Pi, PLC).

To prevent the motor driver from damaged by reverse voltage if the battery is connected in the wrong polarity, it is equipped with reverse polarity protection. This is a very common mistake done by a lot of makers even for the very experienced one.


  • Bidirectional control for two brushed DC motor.
  • Control one unipolar/bipolar stepper motor.
  • Operating Voltage: DC 4V to 16V
  • Maximum Motor Current: 3A continuous, 5A peak
  • Buck-boost regulator to produce 5V output (200mA max).
  • Buttons for quick testing.
  • LEDs for motor output state.
  • Inputs compatible with 1.8V, 3.3V, 5V and 12V logic (Arduino, Raspberry Pi, PLC, etc).
  • PWM frequency up to 20kHz (Output frequency is the same as input frequency).
  • Reverse polarity protection

Example Application: Small size mobile robot for competition or school projects. 





Packing List:

  • 1 x 3Amp 4V-16V DC Motor Driver (2 Channels)
Will the MDD3A work with 3.3v logic? ( Bruce Stringer, 26/10/2020 )

Hi. Yes, it input compatible with 1.8V, 3.3V, 5V and12V logic. Thanks :)

Is the coding for this motor driver is different from l298n motor driver when interfacing with arduino board ? ( NUR DINI BINTI FADHIL LATIFFI , 10/09/2020 )

There are 2 ways of interfacing with L298:
1. Connect PWM signal to EN and control motor direction with IN1 and IN2 for each channel.
2. Connect PWM signal to IN1 and IN2, EN is short to high for each channel.

MDD3A is using method 2 which needs 2 PWM signals for 1 channel. Thanks.

Hi. Can Cytron provide schematic design for this motor driver? Thanks. ( Shahmi, 15/08/2020 )
I'm sorry that we cannot provide the schematic as this product is not open-sourced. Thanks.
Hi, can I use Cytron-Shield2AMotor library with this? ( Narang, 06/08/2020 )
Yes, you can. However, it can only be used with PWM_PWM mode. Please refer to example PWM_PWM_DUAL.ino. Thanks.
Can I use this device to control motor input voltage (4 to 16 V) from Arduino Uno PWM pins? ( Vinod, 22/07/2020 )
Hi, yes you may do so. Thanks :)
Hi, Is it suitable for adapter 12V 5A as a supply?
And Is the board able to supply for DC motor 12V 3.35A??
( Ariff, 24/06/2020 )
Hi, it can be used with the 12V 5A adapter. However, the rated current for the motor is over the continuous current of the motor driver. We will recommend to use a higher current motor driver such as the MDD10A instead. Thanks :)
IS it suitable for Spg50-180k dc motor?
Can I ask what battery is suitable for 3amp 4V-16V DC Motor Driver?
( 繢訢 黄, 24/03/2020 )
Hi, you can use LiPo battery or 18650 battery with that motor. But, beware of the load applied. Thanks :) 
Is it suitable to drive the brush 12V DC geared motor(Model: 33GB-520-18.7)? ( Pan Shun Wong , 16/03/2020 )
Hi, yes it is suitable. Thanks :)
Is ths motor driver capable of driving a dc motor with a stall current of 3.2amps? ( Alex Neo, 25/02/2020 )
Hi, no, it is not capable of driving a DC motor with a stall current of 3.2 amps. Thanks :)
DO you have cad file for this motor driver? ( Lam, 06/11/2019 )
Hi, we have uploaded on the CAD file. You may check this out. Thanks :)

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