Datasheet

This versatile motor driver is intended for a wide range of users, from beginners who just want a plug-
and-play motor control solution for their Arduinos (and are okay with a little soldering) to more
advanced users who want a dual MC33926 carrier that requires fewer I/O pins to control. The Arduino
pin mappings can all be customized if the defaults are not convenient, and the simplified MC33926
control lines are broken out along the left side of the board, providing a convenient interface point for
other microcontroller boards (see the right connection diagram below). This versatility, along with an
option to power the Arduino directly from the shield, sets this board apart from similar competing
motor shields.
For a higher-power alternative to this shield, please consider the Pololu dual VNH5019 motor driver
shield, which can deliver a continuous 12 A per channel.
Features
 Wide operating voltage range: 5 – 28 V 1
 Output current: 3 A continuous (5 A peak 2) per motor
 Inputs compatible with both 5 V and 3.3 V systems
 PWM operation up to 20 kHz, which is ultrasonic and allows for quieter motor operation
 Current sense voltage output proportional to motor current (approx. 525 mV/A)
 Motor indicator LEDs show what the outputs are doing even when no motor is connected
 Can be used with an Arduino or Arduino clone (through shield headers) or other microcontroller
boards (through 0.1″ header along the left side)
 When used as a shield, the motor power supply can optionally be used to power the Arduino
base as well
 Arduino pin mappings can be customized if the default mappings are not convenient
 Arduino library makes it easy to get started using this board as a motor driver shield
 Detailed user’s guide
 Reverse-voltage protection on motor supply 3