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STEVAL-ILL067V1: 6-Ch 70mA @ 36V (Max), 6 ~ 32V in, Boost

Summary

The purpose of this evaluation board is to provide an application example of a six-channel, medium-current LED driver using the ALED7707 chip. The monolithic boost converter provides the required LED supply voltage starting from a single supply rail, while the brightness of the LED strings connected to the six outputs is controlled through a PWM signal.

Open LED and LED short-circuit fault conditions are detected and managed.

The board has been designed to provide a compact reference solution for automotive applications involving several LEDs arranged in multiple strings (e.g. interior lighting, infotainment LCD backlighting, etc.).

Specifications

Manufacturer STMicroelectronics
Category Lighting
Sub-Category LED Drivers - DC In
Eval Board Part Number 497-15864-ND
Eval Board Supplier STMicroelectronics
Eval Board Normally In Stock
Voltage In 6 ~ 32 V
Topology Step Up
Current Out 70 mA (x6 channels)
Voltage Out (Max) 36 V
Outputs and Type 6 Non-Isolated
Efficiency @ Conditions >88%, 16 Vin, 17 ~ 32 Vout
>87%, 12 Vin, 14.2 ~ 32 Vout
>85%, 8 Vin, 11.5 ~ 29 Vout
Features Current Limit (Adj. or Fixed)
Dimming Control
Open Circuit Protection
Over Voltage Protection
PWM Interface
Short Circuit Protection
Shutdown, Enable, Standby
Soft Start
Synchronizable
Thermal Protection
Switching Frequency 250 kHz ~ 1 MHz
Component Count + Extras 47 + 19
Design Author STMicroelectronics
Application / Target Market Automotive
LCD Backlighting
Main I.C. Base Part ALED7707
Date Created By Author 2015-06
Date Added To Library 2019-09

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