A8512 - LED Backlight Driver

Description

The A8512 is a multi-output WLED/RGB driver for backlighting LCD monitors and televisions.

It integrates a boost controller to drive external MOSFET, and six internal currentsinks.

The boost converter operates in constant frequency (programmable) current mode control.

Features

Six integrated high current sinks.
Fixed frequency current mode control with integrated gate driver.
300 kHz to 1 MHz adjustable switching frequency.
Controlled startup using options of Enable, PWM signal, or battery voltage ramp.
Parallel operation with one boost controller (master) and up to five slave controllers.
Active current sharing between LED strings for ±0.6% accuracy and matching.
No audible MLCC noise during PWM dimming.
Adjustable overvoltage.

Allegro Micro Systems

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Datasheet Details

Part number	A8512
Manufacturer	Allegro Micro Systems
File Size	2.01 MB
Description	LED Backlight Driver
Datasheet	A8512 Datasheet
Additional preview pages of the A8512 datasheet.

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Full PDF Text Transcription

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A8512 LED Backlight Driver for LCD Monitors and Televisions FEATURES AND BENEFITS ▪ Six integrated high current sinks ▪ Fixed frequency current mode control with integrated gate driver ▪ 300 kHz to 1 MHz adjustable switching frequency ▪ Controlled startup using options of Enable, PWM signal, or battery voltage ramp ▪ Parallel operation with one boost controller (master) and up to five slave controllers ▪ Active current sharing between LED strings for ±0.

Published: Jul 3, 2010 |