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JeeLabs DC Motor Plug jcw

A small board containing two H-bridges to drive small DC motors or a stepper

jeelabs.net/projects/hardware/wiki/DC_Motor_Plug

Recent activity:

  • 9600 updated7 years ago
  • 9600 pushed7 years ago
  • psd pushed7 years ago
  • 9600 pushed7 years ago

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Description

The board uses an I2C I/O expander to support the two motor drivers as well as 4 freely available I/O pins.

The motor drivers are based on the TC4424 chip, which is mainly intended for driving MOSFET chips, but which happens to also work well to drive small motors forward or backward. Motors with stall currents up to about 1.5A @ 4.5..18V should work just fine.

An I2C bus running at 3.3V is used for I/O, with all the power and signal lines brought out to to both sides of the board to allow daisy-chaining with other I2C-conformant boards.

Schematic

Board

Bill of Materials

Designator Value Description
C1 0.1µ Capacitor
C2 Capacitor
C3 Capacitor
IC1 TC4424A DUAL LOW SIDE DRIVER
IC2 MCP23008T I2C-Bus Remote 8-bit I/O expander
IC3 TC4424A DUAL LOW SIDE DRIVER
PORT1 JEEPORT PIN HEADER
PORT2 JEEPORT PIN HEADER
SJ1 Solder Jumper
SV1 PIN HEADER

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This project is © Jean-Claude Wippler, and is published under the terms of the Creative Commons Attribution 3.0 Unported licence.