A8504 Datasheet - Allegro

A8504, WLED/RGB Backlight Driver

A8504 WLED/RGB Backlight Driver for Medium Size LCDs .
The A8504 is a multi-output WLED driver for medium display backlighting.

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A8504-Allegro.pdf

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Datasheet Details

Part number:

A8504

Manufacturer:

Allegro

File Size:

448.55 KB

Description:

WLED/RGB Backlight Driver

Features

* ▪ Active current sharing among 8 LED strings for ±1.3% typical current matching ▪ ±1.2% typical current accuracy ▪ Drive up to 11 series × 8 parallel = 88 LEDs (Vf = 3.5 V, If = 40 mA) ▪ External PWM control for LED dimming ▪ An external resistor for LED current setting ▪ Boost converter with integr

Applications

* The boost converter is a constant frequency current-mode converter. Each LED channel can sink 45 mA, and channels can be paralleled for higher currents. LED current can be controlled with external PWM duty cycle. The A8504 is available in a 26 pin, 4 mm × 4 mm QFN/MLP package that is only 0.75 mm n

A8504 Distributors

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A8504 WLED RGB Backlight Driver Allegro

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