AN4460 datasheet(1/54 Pages) STMICROELECTRONICS

Part #	AN4460

Description	The STEVAL-ILL057V1 demonstration board is a complete

PDF	54 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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April 2014

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AN4460

Application note

STEVAL-ILL057V1: four independent high brightness LED

Ambrogio D’Adda

Introduction

The STEVAL-ILL057V1 demonstration board is a complete and configurable solution to

manage four independent high brightness LED channels using the STLUX385A digital

controller, which embeds advanced peripherals tailored to generate high resolution PWM

signals. The LED current is independently regulated by the fixed-off-time (FOT) principle on

each channel.

This document describes how to use the STEVAL-ILL057V1 board, the hardware and the

firmware implemented on the board as well as the relevant measurements. The

STLUX385A shipped with this board has already been programmed with firmware tailored

for the STEVAL-ILL057V1 application and the source code is available.

Figure 1 gives an overview of the demonstration board diagram.

Figure 1. Demonstration board diagram

Channel 1

Channel 2

Channel 3

Buttons

DALI

STATUS

UART

-

+

SWIM

STLUX

Channel 0

Power in

AM16703v1

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