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AAT2404 - Voltage-Variable Current Sourcing Boost Controller

General Description

The AAT2404 is a highly integrated high-efficiency variable voltage current sourcing boost controller for white LED backlight applications intended for use in large size LCD panels and LCD TVs.

Key Features

  • VIN Range: 10.8V.
  • 28.0V.
  • Maximum VLED: 100V.
  • Up to 95% Boost Conversion Efficiency.
  • Integrated Current Sense Eliminates Need for Ballast Resistors.
  • Switching Frequency Options.
  • 400KHz Nominal.
  • Adjustable Range from 100kHz to 800kHz.
  • Adjustable Regulation Voltage.
  • Analog Input from LED Driver.
  • User Adjustable for Fixed Output.
  • Integrated Low Impedance Gate Drive = VCC.
  • Flexible Curren.

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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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DATA SHEET AAT2404 Voltage-Variable Current Sourcing Boost Controller For LED Lighting Applications General Description The AAT2404 is a highly integrated high-efficiency variable voltage current sourcing boost controller for white LED backlight applications intended for use in large size LCD panels and LCD TVs. To accommodate various LED backlighting configurations in both direct and edge lighting applications, the device uses a high voltage external power MOSFET. The AAT2404 contains an integrated current sense architecture eliminating the need for an expensive low resistance/high accuracy sense resistor. The device operates ideally from a regulated 12V or 24V DC power supply, but can also operate over a 10.8V to 28V range.