AAT1409中文资料8 Channel LED Backlight Driver with Integrated Boost and High Frequency Direct PWM Dimming数据手册Skyworks规格书

描述 Description

The AAT1409 is a high efficiency eight LED strings backlight driver optimized for notebook computers, monitors and portable TVs. The integrated boost converter and precision current sinks operate from DC inputs, cigarette lighter adapters, or multi-cell Li-ion batteries over the 4.5V to 26V voltage range. The AAT1409 drives up to 88 LEDs at 45mA per string for 360mA total LED current. The high (100 kHz) PWM frequency ensures silent operation.

特性 Features

·Up to 92% Efficiency over Wide Input Voltage Range

简介

AAT1409属于集成电路（IC）的LED驱动器。由制造生产的AAT1409LED 驱动器器件属于 LED 驱动器电源管理集成电路 (PMIC) 系列，可通过标称固定电压的电源为负载（通常为发光二极管）提供电流，并且电流可控。它与用于电压调节的类似产品的主要区别在于，这类器件提供较低的反馈电压（以提高系统能效），而且通常可对器件工作点进行外部控制，可在照明应用中用于实现调光功能。