A8509 High Efficiency 4-Channel Fault Tolerant LED Driver

Allegro

Description

A8509 Wide Input Voltage Range, High Efficiency 4-Channel Fault Tolerant LED Driver .
The A8509 is a multi-output white LED driver for backlighting LCD panels.

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Datasheet Specifications

Part number: A8509
Manufacturer: Allegro
File Size: 4.97 MB
Datasheet: A8509-Allegro.pdf
Description: High Efficiency 4-Channel Fault Tolerant LED Driver

Features

* Four integrated high current sinks for LED strings; can be tied together for even higher currents
* Fixed frequency current mode control with integrated gate driver / boost controller; powerful gate driver to drive an external N-channel MOSFET allows significant scaling capability

Applications

* section) A8509-DS, Rev. 4 MCO-0000858 Typical Application CDR CDD RFSET RISET VIN L1 D1 VDD R1 VIN FAULT CIN COUT Q1 RSENSE GATE SENP SENN PWM EN VDR VDD FSET/SYNC ISET COMP RZ A8509 PAD VOUT ROVP OVP LED1 LED2 LED3 LED4 CZ CP MODE AGND PGND September 12, 2024 A8509 Wide Input V

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A8509 High Efficiency 4-Channel Fault Tolerant LED Driver Allegro

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