A8503 Datasheet - Allegro

A8503, WLED/RGB Driver

A8503 High Efficiency 6-Channel, 2 MHz, WLED/RGB Driver for Medium Displays, with Integrated 55 V Power Switch .
The A8503 is a multi-output WLED/RGB LED driver for medium-size LCD backlighting.

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A8503-Allegro.pdf

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Datasheet Details

Part number:

A8503

Manufacturer:

Allegro

File Size:

704.80 KB

Description:

WLED/RGB Driver

Features

* ▪ Active current sharing between LED strings for ±0.6% accuracy and matching ▪ Drives up to 12 series × 6 parallel = 72 LEDs (Vf = 3.2 V, If = 20 mA) at 5 V ▫ Each individual current sink is capable of 35 mA ▫ Adjustable overvoltage protection (OVP) ▪ 600 kHz to 2 MHz adjustable switching frequency

Applications

* ▪ Notebook and sub-notebook displays ▪ LCD monitors ▪ LCD panels Typical Application VBAT 5 to 27 V VIN 4.3 to 5.5 V CBAT 4.7 µF 35 V VIN D1 L1 10 µH ROVP COUT 2.2 µF SW SW OVP RPULLUP FAULT CIN 0.1 µF RFSET CCOMP 1 µF EN Shutdown Enable FAULT FSET COMP EN MODE A8503 PAD LED1 LED2 LED3

A8503 Distributors

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A8503 WLED RGB Driver Allegro

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