A8509 - High Efficiency 4-Channel Fault Tolerant LED Driver

Product Overview

Allegro

Part number	A8509
Manufacturer	Allegro
File Size	4.97 MB
Description	High Efficiency 4-Channel Fault Tolerant LED Driver
Datasheet	A8509 Datasheet
Additional preview pages of the A8509 datasheet.

The A8509 is a multi-output white LED driver for backlighting LCD panels.

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 on the number of LEDs per string.
Parallel operation with one boost controller (master) and up to three additional slave controllers; can run up to 16 strings of LEDs while populating only a.

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Published: Jan 8, 2025 |