AAT3104 Low Cost 1x/2x Four-Channel Charge Pump WLED Driver

The AAT3104 is a step-up single channel LED driver with an input voltage range of 2.7V to 5.5V. The wide input voltage range, small solution size, advanced dimming features and high efficiency is suitable for LED backlight solutions for single cell Li-ion based equipment. A precision, high voltage current sink maintains the maximum LED current set by an external resistor from 10 to 31mA. The high switching frequency supports ultra small, low cost filtering components. Two dimming controls are available; 32 dimming steps using the S2Cwire™ interface, and filtered PWM control. The frequency range of the PWM dimming extends up to 100 kHz eliminating audible noise and suitable for CABC (Content Adaptive Brightness Control) applications. The device includes over-temperature protection and programmable over-voltage protection and recovers automatically when the faults are removed. The AAT3104 is available in a 10-pin wafer-level chip scale package (WLCSP) and is rated over the -40°C to +85°C temperature range.

技术特性
  • Drives up to 4 LEDs at up to 31mA each
  • Automatic Switching Between 1x and 2x Modes
  • 1MHz Switching Frequency
  • Linear LED Output Current Control
  • Single-wire, S2Cwire Interface
    AAT3104-1: 16-step
    AAT3104-2: 32-step
  • ±10% LED Output Current Accuracy
  • ±3% LED Output Current Matching
  • Low-current Shutdown Mode
  • Built-in Thermal Protection
  • Automatic Soft-start
  • Available in 2x2mm SC70JW-10 Package
订购信息 Ordering Information
  • AAT3104

 

应用领域 APPLICATION
  • Cordless Phone Handsets
  • Digital Cameras
  • Mobile Phone Handsets
  • MP3 and PMP Players
AAT3104 典型应用

AAT3104 典型应用

应用技术支持与电子电路设计开发资源下载 版本信息 大小
AAT3104 数据资料DataSheet下载:pdf Rev.V2 2 页