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January 2015

DocID024269 Rev 2

1/4

STEVAL-ILL048V1

Single-channel LED driver for automotive day-time running lights

(DTRL) and front lights based on ALED6001 and STM32F103C6T6

Data brief

Features

• Wide DC input voltage range: from 6 to 24 V

• Integrated boost converter with adaptive output

voltage for minimum power dissipation

• Up to 92% boost converter efficiency

• Single output LED driver with programmable

current capability up to 350 mA

• High-side current sensing feedback

• External dimming MOSFET driver for superior

dimming performance

• PWM and analog LED brightness control

• Up to 60 V output (16 white LEDs)

• On-board STM32 microcontroller for simple

device evaluation

• USB connection for device control through

dedicated PC GUI

• RoHS compliant

Description

The STEVAL-ILL048V1 demonstration board

showcases ST's new LED driver chip, the

ALED6001. The demonstration also includes an

on-board microcontroller that permits full control

of the device through a USB connection and

dedicated PC GUI. The ALED6001 has been

specifically designed to supply a string of

medium/high current (50 -1000 mA) LEDs starting

from a single low-voltage rail or a car battery. It

integrates a boost controller, high-side current

sensing feedback circuitry and an external

dimming MOSFET controller for superior dimming

performance. The boost controller regulates the

output voltage adaptively, based on the

requirements of the LEDs, resulting in improved

overall efficiency. The maximum output voltage of

the boost converter is 60 V, allowing the device to

drive up to 16 white LEDs in series.

The brightness of the LEDs is controlled by using

both PWM modulation and analog current control

(analog dimming).

The device includes dedicated pins to lock

synchronization with other devices for switching

noise reduction in multi-device applications.

The ALED6001 implements basic protection

features (OVP, OCP and thermal shutdown) in

addition to LED array protection (load

disconnection, feedback disconnection, and LED

overcurrent).

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