ALED8102S集成電路（IC）的LED驅(qū)動(dòng)器規(guī)格書(shū)PDF中文資料

ALED8102S屬于集成電路（IC）的LED驅(qū)動(dòng)器。由意法半導(dǎo)體集團(tuán)制造生產(chǎn)的ALED8102SLED 驅(qū)動(dòng)器器件屬于 LED 驅(qū)動(dòng)器電源管理集成電路 (PMIC) 系列，可通過(guò)標(biāo)稱固定電壓的電源為負(fù)載（通常為發(fā)光二極管）提供電流，并且電流可控。它與用于電壓調(diào)節(jié)的類似產(chǎn)品的主要區(qū)別在于，這類器件提供較低的反饋電壓（以提高系統(tǒng)能效），而且通?？蓪?duì)器件工作點(diǎn)進(jìn)行外部控制，可在照明應(yīng)用中用于實(shí)現(xiàn)調(diào)光功能。

Features

? AEC-Q100 grade 1 qualified

– Operating temperature range: -40 °C < TJ < +150 °C

? 8 constant current output channels controlled by four switch inputs

? Output enable input for global dimming

? Output current: from 5 mA to 100 mA

? Current programmable through external resistor

? Supply voltage: 3 V to 5.5 V

? Thermal shutdown

? 19 V current generator rated voltage

? Available in high thermal efficiency HTSSOP exposed pad package

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.

? Automotive LED interior and exterior lighting

– Clusters

– LCD back-light

– Ambient light

– Dome light

– Rear combination light