AAT2847IML-EE-T1 LED驱动电源IC 背光 1MHz 2.7V ~ 5.5V 可调 TQFN34-20 YLV 热保护
| 恒流Constant Current | |
| 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 | 白光LED White LED |
| 频率Frequency | 1MHz |
| 电源电压Voltage - Supply | 2.7V ~ 5.5V |
| 输出电压Voltage - Output | 可调 |
| Description & Applications | FEATURES • Four-Channel Backlight Driver with Dual LDOs • Input Supply Voltage Range: 2.7V to 5.5V • Tri-Mode (1X/1.5X/2X) Charge Pump: — Delivers up to 120mA of Output Current • Integrated LCD Display Solution: — Four-Channel WLED Backlight • User-Programmable WLED Current Scales: 30mA, 20mA and 15mA. — Sixteen Programmable Current Level Settings • User Selectable Low Level Current Scale — Four Programmable Current Level Settings — Dual 200mA LDOs (w/Separate Enables) • Single-Wire AS2C wire Serial Interface for Configuration/Control — Four Addressable Registers — Fast, 1MHz Serial Interface • > 90% Peak Efficiency • LDO Output Voltages: — AAT2847-EE: User-Programmable — AAT2847-QG: 2.8V and 1.5V — AAT2847-QI: 2.8V and 1.8V • Over-Temperature Protection • Available in 3x4x0.75mm 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 •输入电源电压范围：2.7V至5.5V •三模式的1x/1.5x/2x电荷泵： - 提供高达120mA的输出电流 •集成的液晶显示解决方案： - 四通道WLED背光 •用户可编程WLED电流尺度电流：30mA，20mA和15毫安。 - 16个可编程电流级别设置 •用户可选择的低等级单位本期秤 - 四个可编程电流级别设置 - 双200mA的LDO的（瓦特/独立启用） •单线AS2C的配置/控制线串行接口 - 四寻址寄存器 - 快速，1MHz串行接口 •90％的峰值效率 •LDO输出电压： - AAT2847-EE：用户可编程 - AAT2847-QG：2.8V和1.5V - AAT2847-QI：2.8V和1.8V •过温保护 •可在3x4x0.75mm 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 |
