January 2016

DocID028832 Rev 1

1/8

For further information contact your local STMicroelectronics sales

office

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STEVAL-ILL073V1

RGB LED driver for automotive lighting based on ALED1642GW

and STM8A

Data brief

Features



High brightness 4 x 4 RGB LED matrix



Complete hardware and software package



Various preconfigured and programmable

patterns



Open / short error simulation and real-time

detection



6 to 28 V DC polarity-independent power

supply



GUI for advanced driver configuration



USB-UART bridge for PC connection



RoHS compliant

Description

The STEVAL-ILL073V1 is a high brightness,

RGB LED array driver system evaluation board

with local dimming and diagnostics based on the

ALED1642GW independent PWM LED driver

controlled through an STM8A microcontroller SPI

interface.

A 16 RGB LED matrix is driven by three

ALED1642GW LED drivers, one for each

channel; i.e., Red, Green and Blue.

The on-board A7986A DC-DC converter,

accepting standard adapter input voltages,

provides the voltages and power for the overall

operation of the board. The STEVAL-ILL073V1

includes a USB-UART daughterboard bridge for

communication with a PC.

The evaluation board is also equipped with

jumpers to simulate LED open circuit and LED

short circuit faults, and a 4-pin SWIM connector

to debug and to develop the STM8

microcontroller firmware.

The STEVAL-ILL073V1 has two modes of

operation: in standalone mode, the evaluation

board is controlled via on-board buttons and a

potentiometer; in GUI mode, a Graphical User

Interface is provided to represent the drivers.

When connected to PC, the evaluation board

enters GUI mode and the GUI has control of the

board.