AAT3103 Overview
The AAT3103 is a constant frequency charge-pump based current-source white LED driver capable of driving one to three LEDs up to 30mA, each. The charge pumps automatically switch between 1x mode and 2x mode to maintain the highest efficiency and optimal LED current accuracy and matching. A low external parts count (one 1μF flying capacitor, two small 1μF capacitors at IN and OUT and one current setting resistor)...
AAT3103 Key Features
- Source WLED Driver, up to 3 LEDs at up to 30mA, each Automatic Switching Between 1x and 2x Modes 900KHz Switching Freque
- 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 Circ
