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AAT3152IWP-T1 LED Driver PMIC Backlight, Flash/Torch 1MHz 2.7V ~ 5.5V TDFN33-12L NQF High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications
恒流 Constant Current | |
恒压 Constant Voltage | |
拓扑 Topology | |
输出数 Number of Outputs | 1~4 |
内部驱动器 Internal Driver | |
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 | |
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 — Eight-Step Current: 20mA to 50µA — Individual Main-Sub Group Control — Low IQ (50µA) at Light Load • Tri-Mode 1X, 1.5X, and 2X Charge Pump for Maximum Efficiency and VF Coverage • Drives 1-4 Channels of LEDs • No Inductors, Low Noise Operation • 1MHz Constant Switching Frequency • Small Application Circuit • Built-In Thermal Protection • Built-In Auto-Disable for Short-Circuit • Automatic Soft Start • IQ <1µA in Shutdown • Thermally-Enhanced 3x3mm 12-Pin TDFN 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 - 八步电流:20mA到50μA - 个人主子组控制 - 低IQ(50μA)在轻负载 •三模式1X,1.5X和2X电荷泵最高的效率和VF覆盖 •驱动1-4个通道的LED •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 •内置自动禁用短路 •自动软启动 •IQ停机时<1uA •耐热增强型采用3x3mm12引脚TDFN封装 包 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 |