Features

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AEC-Q100 grade 1 qualified

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8 constant current output channels controlled by four switch inputs

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Output enable input for global dimming

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Output current: from 5 mA to 100 mA

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Current programmable through external resistor

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Supply voltage: 3 V to 5.5 V

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Thermal shutdown

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19 V current generator rated voltage

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Available in high thermal efficiency HTSSOP exposed pad package

Applications

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Automotive LED interior and exterior lighting

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Clusters

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LCD back-light

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Ambient light

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Dome light

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Rear combination light

Description

The ALED8102S is a monolithic, low voltage, 8 low-side channels LED driver.

The ALED8102S guarantees up to 19 V output driving capability allowing users to

connect several LEDs in series. In the output stage, 8 regulated current sources

provide from 5 mA to 100 mA constant current to drive the LEDs. Current is

programmed through a single external resistor.

The ALED8102S is equipped with a thermal management that protects the device

forcing it in shutdown (typically: power-off at 170 °C with 15 °C hysteresis to restart).

The thermal protection switches OFF the output channels only.

The operative supply voltage range is between 3 V and 5.5 V. The output control

is provided by four switch inputs, providing an on/off toggle action suitable also for

local dimming. Moreover, on all active output LEDs brightness can be adjusted with a

global PWM signal applied to the output enable pin (OE). Outputs can be connected

in parallel, or left unconnected if not used, as required by the application.

HTSSOP16

(Exposed pad)

Maturity status link

ALED8102S

Device summary

Order code

ALED8102SXTTR

Package

HTSSOP16

Packing

2500 parts per reel

Automotive 8-channel LED driver with direct switch control

ALED8102S

Datasheet

DS12430 - Rev 2 - May 2022

For further information contact your local STMicroelectronics sales office.

www.st.com