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AAT3156ISN-T1 Constant Current LED Driver Switched Capacitor Backlight, Flash/Torch 1MHz 2.7V ~ 5.5V 4.3V TDFN44-16 NMV High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications
| 恒流 Constant Current | 是 YES |
| 恒压 Constant Voltage | |
| 拓扑 Topology | 切换式电容器（充电泵） Switched Capacitor (Charge Pump) |
| 输出数 Number of Outputs | 6 |
| 内部驱动器 Internal Driver | 是 YES |
| 初级类型 Type - Primary | 背光，闪灯/白光 Backlight, Flash/Torch |
| 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 | 4.3V |
| Description & Applications | FEATURES • High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications • VIN Range: 2.7V to 5.5V • Fully Programmable Current with Single Wire — 16-Step Logarithmic Scale — 15/20/30mA Max Current — Four Low Current Settings Down to 50µA — Low IQ (50µA) for Low Current Mode • Tri-Mode 1X, 1.5X, and 2X Charge Pump for Maximum Efficiency and VF Coverage • Drives Six Channels of LEDs • Individual Main/Sub-Group Control • No Inductors, Low Noise Operation • 1MHz Constant Switching Frequency • Small Application Circuit • Built-In Thermal Protection • Built-In Auto-Disable For Open Circuit • Automatic Soft Start • IQ <1µA in Shutdown • Thermally-Enhanced QFN44-16 Package Applications • Color (RGB) Lighting • Programmable Current Sinks • White LED Backlighting • White Photo Flash for Digital Still Cameras |
| 描述与应用 | 特点 •高效率1X/1.5X/2X电荷泵白光LED应用 •VIN范围：2.7V至5.5V •完全可编程的电流，单线 - 16级对数刻度 - 15/20/30mA最大电流 - 四种低电流设置低至50μA - 低智商低电流模式（50μA） •三模式1X，1.5X和2X电荷泵最高的效率和VF覆盖 •驱动6个通道的LED •个人主/子集团控制 •无需电感，运行噪音低 •1MHz恒定开关频率 •小应用电路 •内置热保护 •内置自动禁用开路 •自动软启动 •IQ停机时<1uA •耐热增强型QFN44-16包装 应用 •彩色（RGB）照明 •可编程电流源 •白光LED背光 •黑白照片闪光灯数码相机 |
