A8500 Datasheet Flexible WLED/RGB Backlight Driver

Manufacturer: Allegro MicroSystems

Datasheet Details

Part number	A8500
Manufacturer	Allegro MicroSystems
File Size	834.87 KB
Description	Flexible WLED/RGB Backlight Driver
Download	A8500 Download (PDF)

The A8500 is a multi-output WLED driver for medium display backlighting.

The A8500 integrates a boost converter and eight current-sinks to provide a flexible WLED/RGB backlight driver.

The boost converter can provide output voltage up to 47 V.

A8500 Flexible WLED/RGB Backlight Driver for Medium Size LCDs.

Active current sharing between LED strings for ±1.5% typical current matching and ±1.2% typical accuracy.
Drive up to 12 series × 8 parallel = 96 LEDs (Vf = 3.2 V, If = 20 mA).
Flexible dimming, using alternative methods: ▫ LED duty cycle control (PWM pin) ▫ DC current using serial programming (EN pin) ▫ DC current using external PWM signal (APWM pin) ▫ An external resistor.
Boost converter with integrated 50 V, 2 A DMOS.
LED sinks rated for 25 mA.
200 kHz to 2 MHz.

Part Number	Description
A8501	4 Channel x 100 mA WLED/RGB Driver
A8530	Ultracompact 6-Channel Backlight and Flash/Torch White LED Driver