January 2009

Rev 2

1/9

AN2759

Application note

EVAL6227QR demonstration board using a dual full-bridge L6227Q

for motor control applications

Introduction

This application note describes the demonstration board of the DMOS dual full-bridge

L6227Q designed for motor control applications. The board implements a typical application

that can be used as a reference design to drive two-phase bipolar stepper motors with

currents up to 1A DC, multiple DC motors and a wide range of inductive loads.

Thanks to the small footprint of the L6227Q (QFN 5 x 5 mm, 32-lead) the PCB is very

compact (27 x 32 mm).

Figure 1.

EVAL6227QR demonstration board

www.st.com