A8509 Datasheet - Allegro

A8509, High Efficiency 4-Channel Fault Tolerant LED Driver

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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A8509-Allegro.pdf

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Datasheet Details

Part number:

A8509

Manufacturer:

Allegro

File Size:

4.97 MB

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

A8509 Distributors

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A8509 High Efficiency 4-Channel Fault Tolerant LED Driver Allegro

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