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RB-Pol-197

Pololu Dual MC33926 Motor Driver Shield for Arduino

Description

This shield makes it easy to control two brushed DC motors with your Arduino or Arduino-compatible

board. Its dual MC33926 motor drivers operate from 5 to 28 V and can deliver a continuous 3 A per

motor. These great drivers also offer current-sense feedback and accept ultrasonic PWM frequencies for

quieter operation. The Arduino pin mappings can all be customized if the defaults are not convenient,

and the motor driver control lines are broken out along the left side of the shield for general-purpose

use without an Arduino.

Overview

This motor driver shield and its corresponding Arduino library make it easy to control two bidirectional,

brushed DC motors with an Arduino or Arduino clone. The board features a pair of Freescale MC33926

motor drivers, which operate from 5 to 28 V and can deliver a continuous 3 A per channel, and includes

current sense circuitry, protection resistors, a FET for reverse battery protection, and logic gates to

reduce the required number of I/O pins. It ships fully populated with its SMD components, including the

two MC33926 ICs, as shown in the picture to the right; stackable Arduino headers and terminal blocks

for connecting motors and motor power are included but are not soldered in (see the Included

Hardware section below).

Summary of content (4 pages)

PAGE 1
RB-Pol-197 Pololu Dual MC33926 Motor Driver Shield for Arduino Description This shield makes it easy to control two brushed DC motors with your Arduino or Arduino-compatible board. Its dual MC33926 motor drivers operate from 5 to 28 V and can deliver a continuous 3 A per motor. These great drivers also offer current-sense feedback and accept ultrasonic PWM frequencies for quieter operation.
PAGE 2
This versatile motor driver is intended for a wide range of users, from beginners who just want a plugand-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.
PAGE 3
 o o o o o Robust drivers: Transient operation up to 40 V Over-current limiting via internal PWM Over-temperature shutdown and hysteresis Under-voltage shutdown Output short-to-ground and short-to-Vcc protection 1 The board supports transient (< 500 ms) operation up to 40V. Operation from 5-8 V reduces maximum continuous output current (driver performance is derated in this range). 2 Internal peak-current limiting gracefully reduces the output power at load currents above 6.5 A ± 1.5 A.
PAGE 4
A 0.1″ shorting block (for optionally supplying shield power to Arduino) is also included. You can solder the terminal blocks to the six large through-holes to make your motor and motor power connections, or you can break off a 12×1 section of the 0.1″ header strip and solder it into the smaller through-holes that border these larger holes. You can also solder wires directly to the board. When not using this board as an Arduino shield, you can solder the 0.