AAT2801IXN-4.5-T1 LED驱动电源IC 背光 1MHz 2.7V ~ 5.5V 4.5V TDFN44-16 MSV 自动软启动/无电感器/低噪声恒定频率
| 恒流Constant Current | |
| 恒压Constant Voltage | |
| 拓扑Topology | |
| 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 | 1MHz |
| 电源电压Voltage - Supply | 2.7V ~ 5.5V |
| 输出电压Voltage - Output | 4.5V |
| Description & Applications | FEATURES • Multi-Mode Charge Pump for White LED Backlight and Flash Applications • VIN Range: 2.7V to 5.5V • Dual Charge Pump — Flash: Charge Pump Doubler — Backlight: Tri-Mode Charge Pump • Drives Low-VF and High-VF LEDs • Up to Four 30mA Outputs • 32-Position Logarithmic Scale with Digital Control • Low Noise Constant Frequency Operation • 1MHz Switching Frequency • AutoBias Technology • Regulated 4.5/5.0 Volts VOUT_FLASH • Up to 250mA of Current for Flash • Automatic Soft Start • No Inductors • IQ <1µA in Shutdown • Available in 16-pin TDFN44 Package Applications • Display Modules • Mobile Phones • PDAs • Smart Phones |
| 描述与应用 | 特点 •多模电荷泵白光LED背光和闪光应用 •VIN范围：2.7V至5.5V •双电荷泵 - 闪光灯：电荷泵倍增 - 背光：三模式电荷泵 •低VF和高VF的LED驱动 •高达四30MA输出 •32位置数刻度与数字控制 •低噪声恒定频率操作 •1MHz开关频率 •AutoBias技术 •稳压4.5/5.0伏特VOUT_FLASH •高达250mA的电流为Flash •自动软启动 •无电感器 •IQ停机时<1uA •可提供16引脚TDFN44包装 应用 •显示模块 •手机 •掌上电脑 •智能手机 |
| 规格书PDF |
