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  • Model：AAT1235IRN-T1
  • Manufacturer：HUABAN
  • Date Code：07NOPB
  • Standard Package：1500
  • Min Order：10
  • Mark/silk print/code/type：TKV
  • Package：TDFN34-16

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
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		2MHz
电源电压
Voltage - Supply		2.7V ~ 5.5V
输出电压
Voltage - Output		24V
Description & ApplicationsFEATURES • High Efficiency White LED Drivers for Backlight and Keypad • Input Supply Voltage Range: 2.7V to 5.5V • Maximum Boost Output Drive: Up to 24V at 100mA • Up to 85% Efficient Operation • Up to 2MHz Switching Frequency with Small Inductor • User-Programmable Full-Scale LED Current, Up to 30mA • Single-Wire AS2Cwire Serial Interface — Five Addressable Registers • Independent LED Current Control by Group — Backlight Group B1-B2, 16 Settings — Auxiliary Group A1-A3, 16 Settings • Independent LED ON/OFF Control — Fast, 1MHz Serial Interface • Non-Pulsating, High-Performance LED Current Drive for Uniform Illumination — 10% Absolute Accuracy — 2% Channel-to-Channel Matching • Over-Voltage and Over-Temperature Protection • Automatic Soft-Start Minimizes Large Inrush Current at Startup • Available in 3x4mm TDFN34-16 Package Applications • Digital Still Cameras (DSCs) • Keypad Backlight • Large Panel Displays • Mobile Handsets • Personal Media Players • PDAs and Notebook PCs • White LED Backlight
描述与应用特点 •高效率白光LED驱动器背光和键盘 •输入电源电压范围：2.7V至5.5V •最大升压输出驱动高达24V100mA时 •高达85％的高效运行 •高达2MHz的开关频率与小型电感器 •用户可编程的满量程LED电流高达30mA •单线AS2Cwire串行接口 - 五寻址寄存器 •独立的LED电流控制集团 - 背光集团B1，B2，16种设置 - 辅助组A1-A3，16的设置 •独立的LED ON / OFF控制 - 快速，1MHz串行接口 •非脉动，高性能的LED电流驱动器用于均匀照明 - 10％的绝对精度 - 2％的通道至通道匹配 •过电压和过温保护 •自动软启动降低大浪涌电流启动 •可在3x4mm TDFN34-16包装 应用 •数码相机（DSC） •键盘背光 •大型显示器 •移动手机 •个人媒体播放器 •PDA和笔记本电脑 •白光LED背光

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