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AAT1274 - 1.5A Single Flash LED Driver IC

General Description

The AAT1274 is a high-efficiency, 1.5A high-current boost converter for LED photo flash applications.

It maintains output current regulation by switching the internal high-side and low-side switch transistors, pulsewidth modulated at a fixed frequency of 2MHz.

Key Features

  • Input Voltage Range: 2.7V to 5.5V.
  • Single Channel Flash Output.
  • Up to 1.5A Regulated Output Current.
  • Up to 88% Efficiency.
  • 2 MHz Switching Frequency.
  • Separate Flash Enable.
  • Single Resistor Sets Flash and Movie Mode Current.
  • AS2Cwire Single Wire Programming:.
  • Movie Mode Current.
  • Flash/Movie Mode Current Ratio.
  • True Load Disconnect.
  • Soft-Start and Input Current Limit.
  • Over-Voltage (Ope.

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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 AAT1274 1.5A Single Flash LED Driver IC General Description The AAT1274 is a high-efficiency, 1.5A high-current boost converter for LED photo flash applications. It maintains output current regulation by switching the internal high-side and low-side switch transistors, pulsewidth modulated at a fixed frequency of 2MHz. The high switching frequency allows the use of a small external inductor and output capacitor, making the AAT1274 ideally suited in all single cell, Li-ion-powered applications. Skyworks' proprietary AS2Cwire™ (Advanced Simple Serial Control™) serial digital interface is used to enable, disable, configure, and program the operation of the AAT1274.