Datasheet4U Logo Datasheet4U.com

A8504 Datasheet WLED/RGB Backlight Driver

Manufacturer: Allegro MicroSystems

📥 Download Datasheet

General Description

The A8504 is a multi-output WLED driver for medium display backlighting.

The A8504 integrates a boost converter and eight current-sinks to provide a WLED/RGB backlight driver.

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

Overview

A8504 WLED/RGB Backlight Driver for Medium Size LCDs.

Key Features

  • Active current sharing among 8 LED strings for ±1.3% typical current matching.
  • ±1.2% typical current accuracy.
  • Drive up to 11 series × 8 parallel = 88 LEDs (Vf = 3.5 V, If = 40 mA).
  • External PWM control for LED dimming.
  • An external resistor for LED current setting.
  • Boost converter with integrated 50 V, 2 A DMOS.
  • LED sinks rated for 45 mA.
  • 200 kHz to 2 MHz switching frequency.
  • Open LED disconnect.
  • Boost current limit, thermal shutdown, and soft s.

More Datasheets from Allegro MicroSystems

Part Number Description
A8502 High Efficiency Fault Tolerant LED Driver
A8503 WLED/RGB Driver
A8508 8-Channel Fault Tolerant LED Driver
A8509 High Efficiency 4-Channel Fault Tolerant LED Driver
A8510 High Efficiency Fault Tolerant LED Driver
A8511 4-Channel x 150 mA WLED/RGB Driver
A8514 High Efficiency Fault Tolerant LED Driver
A8515 Fault Tolerant LED Driver
A8517 Multi-Channel LED Driver
A8518 Fault-Tolerant LED Driver