AAT1239-1 Overview
The AAT1239-1 is a high frequency, high efficiency constant current boost converter capable of driving up to ten (10) series-connected white LEDs or 40V. It is an ideal power solutions for backlight applications with up to ten white LEDs in series. The input voltage is 2.7V to 5.5V for single-cell lithium-ion/polymer (Li-ion) based portable devices.
AAT1239-1 Key Features
- Input Voltage Range: 2.7V to 5.5V
- Maximum Continuous Output 40V @ 30mA
- Drives up to 10 LEDs in Series
- Constant LED Current with 3.5% Accuracy Over Temperature and Input Voltage Range
- Digital Control with S2Cwire Single Wire Interface
- 26 Discrete Steps
- No PWM Control Required
- No Additional Circuitry
- Up to 82% Efficiency
- Up to 2MHz Switching Frequency Allows Small External Chip Inductor and Capacitors
AAT1239-1 Applications
- Input Voltage Range: 2.7V to 5.5V