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AAT2405 Datasheet Six-Channel White LED Driver

Manufacturer: Skyworks Solutions

General Description

The AAT2405 is a highly integrated, high efficiency white LED backlight solution for large size LCD panels used in LCD TVs.

This device operates from a wide 10.8V to 28V DC power source, making it ideal for operation with common 12V to 24V AC-DC power supplies used in LCD TV panels.

By controlling external power MOSFETs (such as the Skyworks' AAT2490 high-voltage TrenchDMOS array), the AAT2405 facilitates 6 current sink channels to provide precision constant-current drive for strings of white LEDs, where the number of series-connected LEDs per string is only limited by the system LED voltage supply.

Overview

PRODUCT SUMMARY AAT2405 Six-Channel White LED Driver for LCD TV Edge Lighting.

Key Features

  • VIN Range: 10.8V.
  • 28V.
  • 6 LED Current Sinks up to 250mA/ch.
  • ±1.5% Accuracy @ 25°C (100mA).
  • ±1.5% Matching @ 25°C (100mA).
  • Maximum LED Current Set Resistor.
  • Linear Current Sink Calibration Input.
  • External PWM Dimming.
  • PWM Input Defined Period.
  • 50Hz to 20kHz PWM Input Frequency Range.
  • Wide PWM Dimming Range.
  • Cascade Multiple ICs:.
  • PWM Signal Feed Through: PWMIN / PWMOUT.
  • Chip to Chip Phase Del.