DFRobot DC Motor Driver 2x15A Lite

The DFRobot DC Motor Driver 2x15A Lite is a powerful driver that can get your medium sized robot rolling.

As your robot building skills improve, you may find yourself building bigger and bigger robots. This motor driver is great for your medium sized robots. Using four industrial strength BTS7960 high current half bridge motor drivers, this board can drive two channels with up to 15 amps at 13.8 volts of power each.

The 2x15A Lite has built in short circuit, overheating and over- heating protection. It supports up to 25 kHz PWM and active freewheeling. This board has two heat sinks mounted on the bottom to manage heat dissipation. Screw terminals are provided for connection to the motors and motor power supply. Each motor channel has two LED indicators help with debugging.

Controlling each motor only requires a few digital pins from your robot's microcontroller: one to selection the direction of rotation and another to provide PWM speed control. Each motor channel also provides two optional outputs to allow your microcontroller to detect fault conditions and sense the current as needed.

DC Motor Driver 2x15A Lite Interface Table

Pin	Description
+5V	5 volt logic power supply input
GND	Common ground
M1_PWM	Motor 1 PWM speed control input
M1_EN	Motor 1 direction control input
LA_IS	Motor 1 current sense and diagnostic output 1
RA_IS	Motor 1 current sense and diagnostic output 2
M2_PWM	Motor 2 PWM speed control input
M2_EN	Motor 2 direction control input
LB_IS	Motor 2 current sense and diagnostic output 1
RB_IS	Motor 2 current sense and diagnostic output 2

Documentation

• Motor Driver Schematic
• BTS7960 High Current Half Bridge Datasheet

Downloads

• Arduino Demo Code

Motor Driver Features
Motor Driver	BTS7960
Motor Voltage	4.8-13.8 V
Motor Channels	2
Continuous Current per Channel	15 A
Peak Current per Channel	20 A
Current Sense	Yes
Maximum PWM Frequency	25 kHz
Power Supply and Consumption
Operating Voltage	5 V
Dimensions
Size	73 x 68 x 14 mm

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