UM1691 datasheet(1/41 Pages) STMICROELECTRONICS

Part #	UM1691

Description	The EVAL6470H-DISC can be used together

PDF	41 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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1 / 41 page

April 2015

DocID025486 Rev 2

1/41

41

UM1691

User manual

EVAL6470H-DISC: fully integrated stepper motor driver based on

the L6470 and STM32™

Introduction

The EVAL6470H-DISC can be used together with the STM32™ firmware library V1.0 and

constitutes a complete motor control evaluation and a development platform.

It is a demonstration board for motor control applications in the range of 8 V to 45 V of DC

bus voltage using the STM32F105RB microcontroller with an internal 128 kB Flash size and

a 64 kB internal RAM and the L6470 fully integrated solution suitable for driving two-phase

bipolar stepper motors up to 1/128 microstepping.

The L6470 integrates a dual DMOS full bridge with all of the power switches equipped with

an accurate on-chip current sensing circuitry suitable for non dissipative current control and

overcurrent protection.

With dedicated hardware evaluation features, the EVAL6470H-DISC board is designed to

help developers evaluate the device and develop their own applications.

Figure 1. Board image

www.st.com

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