AAT2846INJ-EE-T1 LED驱动电源IC 背光 2MHz 2.7V ~ 5.5V 1.2V ~ 5.5V TQFN44-28 UPV 两个线性稳压器/热保护/自动软启动
| 恒流Constant Current | |
| 恒压Constant Voltage | |
| 拓扑Topology | |
| 输出数Number of Outputs | 6 |
| 内部驱动器Internal Driver | |
| 初级类型Type - Primary | 背光 Backlight |
| 次级类型Type - Secondary | 闪光 LED Flash LED |
| 频率Frequency | 2MHz |
| 电源电压Voltage - Supply | 2.7V ~ 5.5V |
| 输出电压Voltage - Output | 1.2V ~ 5.5V |
| Description & Applications | FEATURES • High Current Charge Pump with Dual LDO for Backlight and Flash Applications • Input Voltage Range: 2.7V to 5.5V • Tri-Mode Charge Pump: ▪ Drives up to Six Backlight LEDs and Two Flash LEDs ▪ 32 Programmable Backlight Current Settings Ranging from 95µA to 30mA ▪ 16 Programmable Flash Current Settings ▪ Maximum Flash LED Current Programmable using External Resistor ▪ 2MHz Switching Frequency • Two Linear Regulators: ▪ 200mA Output Current ▪ 200mV Dropout Voltage ▪ Output Voltage Adjustable from 1.2V to VBATTERY ▪ Output Auto-Discharge for Fast Shutdown ▪ Individual LDO Enable Inputs • Built-In Thermal Protection • Automatic Soft Start • -40°C to +85°C Temperature Range • TQFN44-28 Package Applications • Camera-Enabled Mobile Devices • Digital Still Cameras • Multimedia Mobile Phones |
| 描述与应用 | 特点 •高电流电荷泵背光和闪光应用的双路LDO •输入电压范围：2.7V至5.5V •三模式电荷泵： ▪驱动多达6个背光LED和两个闪光LED ▪32个可编程背光电流设置范围从95μA到30mA ▪16个可编程的闪光灯电流设置 ▪最大闪光LED电流可编程使用外部电阻 ▪2MHz的开关频率 •两个线性稳压器： ▪200mA输出电流 ▪200mV压差电压 ▪可调从1.2V到VBATTERY的输出电压 ▪输出自动放电快速关机 ▪个人LDO使能输入 •内置热保护 •自动软启动 •-40°C至+85°C温度范围 •TQFN44-28包装 应用 •相机功能的移动设备 •数码相机 •多媒体手机 |
| 规格书PDF |
