AAT2845AIML-EE-T1 恒流LED驱动电源IC 背光 1MHz 2.7V ~ 5.5V 4.7V TQFN34-20 YEV 热保护/自动软启动
| 恒流Constant Current | 是 YES |
| 恒压Constant Voltage | |
| 拓扑Topology | |
| 输出数Number of Outputs | 4 |
| 内部驱动器Internal Driver | 是 YES |
| 初级类型Type - Primary | 背光 Backlight |
| 次级类型Type - Secondary | RGB 白色 LED RGB White LED |
| 频率Frequency | 1MHz |
| 电源电压Voltage - Supply | 2.7V ~ 5.5V |
| 输出电压Voltage - Output | 4.7V |
| Description & Applications | FEATURES • Four-Channel Backlight Driver with Dual LDOs • Input Voltage Range: 2.7V to 5.5V • Four-Channel LED Driver: — Tri-Mode Charge Pump — Up to 20mA/Channel — Easy Control with Single Wire Interface — 16 Current Levels — Four Low Current Settings Down to 50µA — Low IQ (50µA) for Low Current Mode — >90% Peak Efficiency • Dual 200mA LDOs • Automatic Soft-Start • Over-Temperature Protection • Available in 3x4mm TQFN34-20 Package • -40°C to +85°C Temperature Range Applications • Camera Function Power Supplies • Camera Phone Displays • LCD Modules • White LED Backlighting |
| 描述与应用 | 特点 •四通道背光驱动器，带有双LDO •输入电压范围：2.7V至5.5V •四通道LED驱动器： - 三模式电荷泵 - 最多20mA/Channel - 易于控制单线接口 - 16个电流水平 - 四种低电流设置低至50μA - 低智商低电流模式（50μA） - >90％的峰值效率 •双200毫安的LDO •自动软启动 •过温保护 •可在3x4mm TQFN34-20包装 •-40°C至+85°C温度范围 应用 •相机功能电源 •相机手机显示 •液晶显示模块 •白光LED背光 |
| 规格书PDF |
