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AAT2400 - Sixteen-Channel White LED Driver Solution

General Description

The AAT2400/2401 is a highly integrated, high efficiency white LED backlight solution for large size LCD panels used in LCD TVs.

To accommodate power requirements, the solution consists of two devices, a master device (AAT2400) and a slave device (AAT2401).

Key Features

  • VIN Range: 10.8V.
  • 28V.
  • Integrated Boost Converter.
  • VOUT(MAX): 40V.
  • IOUT(MAX): 1.6A.
  • Up to 95% Efficiency.
  • Switching Frequency Options.
  • 600 kHz.
  • Sync to External Clock (optional).
  • 16 LED Current Sinks up to 100mA/ch.
  • ±2.5% Accuracy (60mA).
  • ±2.0% Matching (60mA).
  • SPI Interface.
  • Digitally Programmable Individual Channels.
  • Up to 30MHz Clock Speed.
  • Read/Write Registers.

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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 AAT2400/2401 Sixteen-Channel White LED Driver Solution with Full LED Current and Timing Control General Description The AAT2400/2401 is a highly integrated, high efficiency white LED backlight solution for large size LCD panels used in LCD TVs. To accommodate power requirements, the solution consists of two devices, a master device (AAT2400) and a slave device (AAT2401). The devices operate from a regulated 24V DC power supply. The master device supplies a 40V rail to drive 10 series LEDs with a typical VF of 3.6V. 16 precision current sinks split evenly between the master and slave devices provide constant current drive for up to 160 white LEDs. A SPI compatible interface operates up to 30MHz, allowing fast, independent digital control of each current sink.