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AAT2403B - Sixteen-Channel White LED Driver Solution

General Description

The AAT2403B is a highly integrated, high efficiency white LED backlight solution for large size LCD panels used in LCD TVs.

The device operates from a wide 10.8V to 28V DC power supply.

16 precision current sinks provide constant current drive for up to 160 white LEDs.

Key Features

  • VIN Range: 10.8V.
  • 28V.
  • 16 LED Current Sinks up to 150mA/ch.
  • ±1.5% Accuracy @ 25°C (61mA).
  • ±2.0% Matching @ 25°C (61mA).
  • SPI Interface.
  • Digitally Programmable Individual Channels.
  • Up to 30MHz Clock Speed.
  • Read/Write Registers.
  • High Resolution Digital Control for Individual Channels.
  • 12-Bit Resolution Grayscale PWM Brightness.
  • 12-Bit Resolution Phase Delay.
  • 8-Bit Resolution Current Setting (Dot Correction).

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Other Datasheets by Skyworks Solutions

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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PRODUCT SUMMARY AAT2403B Sixteen-Channel White LED Driver Solution with Full LED Current and Timing Control General Description The AAT2403B is a highly integrated, high efficiency white LED backlight solution for large size LCD panels used in LCD TVs. The device operates from a wide 10.8V to 28V DC power supply. 16 precision current sinks provide constant current drive for up to 160 white LEDs. A wide range of series LEDs is possible because the current sinks can withstand 35V. A SPI compatible interface operates up to 30MHz, allowing fast, independent digital control of each current sink. Full scale LED current is programmed from 20mA to 150mA using an external resistor.