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AAT1274 - 1.5A Single Flash LED Driver IC

Datasheet Summary

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.

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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Datasheet preview – AAT1274

Datasheet Details

Part number AAT1274
Manufacturer Skyworks Solutions
File Size 856.26 KB
Description 1.5A Single Flash LED Driver IC
Datasheet download datasheet AAT1274 Datasheet
Additional preview pages of the AAT1274 datasheet.

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Full PDF Text Transcription

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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.
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