AIC1647CV LED驱动电源IC PWM，升压 背光 1.2MHz 2.7V ~ 5.5V SOT-153/SOT23-5 1647 高效率高/固定频率电流模式PWM操作
| 恒流Constant Current | |
| 恒压Constant Voltage | |
| 拓扑Topology | PWM，升压（升压） PWM, Step-Up (Boost) |
| 输出数Number of Outputs | 3 |
| 内部驱动器Internal Driver | |
| 初级类型Type - Primary | 背光 Backlight |
| 次级类型Type - Secondary | 白色 LED White LED |
| 频率Frequency | 1.2MHz |
| 电源电压Voltage - Supply | 2.7V ~ 5.5V |
| 输出电压Voltage - Output | |
| Description & Applications | FEATURES • White LED Step-Up Converter in SOT23 •1.2MHz Fixed Frequency Current-Mode PWM Operation. • Efficiency Up to 84% at VIN=4.2V, 3LEDs, ILED=20mA • Drives Up to 6LEDs in series • Low Supply Current: 70µA • Matches LED Current • Require Tiny Inductors and Capacitors • Tiny SOT23-5 Package Applications • Cellular Phones • PDAs • Digital Still Cameras Handheld Devices • White LED Display Backlighting |
| 描述与应用 | 特点 •白光LED升压型转换器，SOT23封装 •1.2MHz固定频率电流模式PWM操作。 •效率高达84％VIN= 4.2V，三灯，电流为20mA •驱动多达串联6LEDs •低电源电流：70μA •LED电流匹配 •需要微小的电感器和电容器 •微型SOT23-5封装 应用 •蜂窝电话 •掌上电脑 •数码相机手持设备 •白光LED背光显示 |
| 规格书PDF |
