驱动四个白色 LED ADM8843 白色 LED 背光驱动器的典型应用。 ADM8843 使用
电荷泵技术来提供驱动多达四个 LED 的电源。 LED 用于为彩色 LCD
显示器提供背光,该显示器已调节
恒定电流以实现均匀的亮度强度。主显示屏最多可使用 3 个 LED,副显示屏最多可使用 1 个 LED。 CTRL1和CTRL2数字输入控制引脚控制关机操作以及主、副显示屏的亮度
说明
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Driving Four White LEDs Typical Application for ADM8843 White LED Backlight Driver. The ADM8843 uses charge pump technology to provide the power to drive up to four LEDs. The LEDs are used for backlighting a color LCD display that has regulated constant current for uniform brightness intensity. The main display can use up to three LEDs, and the sub display uses one LED. The CTRL1 and CTRL2 digital input control pins control the shutdown operation and the brightness of the main and sub displays