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AAT3123ITP-20-T1 Constant Current LED Driver backlight 1MHz 2.7V ~ 5.5V TSOPJW-12 IRG

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Product description
恒流
Constant Current
是 YES
恒压
Constant Voltage
拓扑
Topology
输出数
Number of Outputs
4
内部驱动器
Internal Driver
初级类型
Type - Primary
背光 Backlight
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 & ApplicationsFEATURES • High Efficiency 1X/1.5X Fractional Charge Pump for White LED Applications • VIN Range: 2.7V to 5.5V • Dual Mode 1X and 1.5X Charge Pump for Maximum Efficiency • Drives Low-VF and High-VF Type LEDs • Up to Six 20mA Outputs (AAT3124) • Up to Four 20mA Outputs (AAT3123/23A) • 32-Position Logarithmic Scale with Digital Control • Simple Serial Control (S2C wire) Interface • Low Noise Constant Frequency Operation • 1MHz Switching Frequency • Small Application Circuit • Regulated Output Current • Automatic Soft Start • No Inductors • IQ <1μA in Shutdown • Temperature Range: -40°C to +85°C • 12-Pin TSOPJW Package (AAT3123/23A) • 16-Pin 4x4mm QFN and 14-Pin TSOPJW Packages (AAT3124) Applications • Color (RGB) Lighting • Programmable Current Source • White LED Backlighting • White Photo Flash for DSCs
描述与应用特点 •高效率1X/1.5X分数电荷泵白光LED应用 •VIN范围:2.7V至5.5V •双模式1X和1.5X电荷泵的最大效率 •驱动低VF和高VF类型灯 •高达60020mA输出(AAT3124) •最多四个20mA输出(AAT3123/23A) •32位置数刻度与数字控制 •简易串行控制(S2C线)接口 •低噪声恒定频率操作 •1MHz开关频率 •小应用电路 •稳定的输出电流 •自动软启动 •无电感器 •IQ停机时<1uA •温度范围:-40°C至+85°C •12引脚TSOPJW包装(AAT3123/23A) •16引脚的4x4mm QFN和14引脚TSOPJW软件包 (AAT3124) 应用 •彩色(RGB)照明 •可编程电流源 •白光LED背光 •黑白照片数码相机的闪存
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