AAT3103-1 Three-Channel Charge-Pump LED Driver

The AAT3103-1 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 AAT3103-1 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

Source WLED Driver, up to 3 LEDs at up to 30mA, each
Automatic Switching Between 1x and 2x Modes
900KHz Switching Frequency
Linear LED Output Current Control
Single-wire, S2Cwire Interface
 AAT3103-1: 16-step
 AAT3103-2: 8-step
ON/OFF or PWM Interface
 AAT3103-4
±10% LED Output Current Accuracy
±3% LED Output Current Matching
Low-current Shutdown Mode
Built-in Short Circuit and Thermal Protection
Automatic Soft-start
2 x 2.2mm SC70JW-10 Package

订购信息 Ordering Information

AAT3103-1

应用领域 APPLICATION

Cordless Phone Handsets
Mobile Phone Handsets
MP3 and PMP Players
Digital Cameras

AAT3103-1 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
AAT3103-1 数据资料DataSheet下载:pdf	Rev.V2	2 页