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Features

? AEC-Q100 Grade1 qualified

– Operating temperature range -40 °C < TJ < 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

? Simultaneous or exclusive control by PWMI and I2C interface

? Switching controller section

– Low shutdown current: ISHDN < 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

– 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