Datasheet > ALED7709

ALED7709

更新时间： 2023-12-20 18:44:29

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		/
页数	文件大小	规格书
64页	11048K
描述
Automotive LED driver 4-channel 200 mA with a DC-DC controller

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ALED7709 数据手册

ALED7709

Datasheet

Automotive LED driver 4-channel 200 mA with a DC-DC controller

Features

•

AEC-Q100 Grade1 qualified

Operating temperature range -40 °C < T_J< 150 °C

4.5 V to 42 V operating input voltage range

–

Up to 60 V tolerant for load dump @ 24 V battery

Supports battery cranking events down to 4 V supply

QFN24L (5x5 mm)

•

Simultaneous or exclusive control by PWMI and I²C interface

Switching controller section

–

Low shutdown current: I_SHDN< 15 µA

Fixed frequency peak current-mode controller

Cycle-by-cycle power switch OCP

Adjustable (250 kHz to 2.2 MHz) switching frequency with optional

spread spectrum

Product status link

ALED7709

–

Synchronized boost and SEPIC topologies support

Line switch control for standby power saving and inrush current

protection

–

Input overvoltage and output short-circuit protection

•

LED strings control section

–

4 x 40 V rated constant current outputs

Adjustable up to 200 mA per channel

±2 % typ. output current accuracy

Mixed PWM and Analog dimming

100 Hz to 12.8 kHz dimming frequency

Dimming ratio 10000:1 at 100 Hz

LED temperature sensor (NTC) management

Selectable channels phase-shifting and adjustable Rise/Fall time for

reducing EMI

–

Open channel, LED short-circuit detection

Two versions available: ALED7709A and ALED7709B

Applications

•

Automotive lighting and backlighting for:

–

Cluster / Infotainment display

Head-Up Display (HUD)

Instrument lighting system

Ambient light

DS14214 - Rev 4 - June 2023

For further information contact your local STMicroelectronics sales office.

www.st.com

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