AAT2805IXN-4.5-T1 LED驱动电源IC 背光 1MHz 2.7V ~ 5.5V 4.5V TDFN44-16 NIV 低噪声/自动软启动/无电感器
| 恒流Constant Current | |
| 恒压Constant Voltage | |
| 拓扑Topology | |
| 输出数Number of Outputs | 2 |
| 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 • Dual High Efficiency Charge Pump for White LED and Flash Applications • VIN Range: 2.7V to 5.5V • Dual Charge Pump to Support Backlight and Flash LEDs • Backlight Charge Pump: — Regulated Current — Four Current Sink Inputs — AS2Cwire Brightness Control — Tri-Mode Charge Pump — Maximum 30mA of Current Per Input — Low IQ (50µA) in Light Load Mode • Flash Charge Pump: — Regulated Output Voltage — Up to 250mA of Pulsed Current • Independent Backlight/Flash Control • Low Noise 1MHz Constant Frequency Operation • Automatic Soft-Start • No Inductors • Available in TDFN44-16 Package Applications • Color (RGB) Lighting • White LED Backlighting • White LED Photo Flash |
| 描述与应用 | 特点 •双通道高效率电荷泵白光LED和Flash应用 •VIN范围：2.7V至5.5V •双电荷泵来支持背光和闪光LED灯 •背光电荷泵： - 调节电流 - 四灌电流输入 - AS2Cwire亮度控制 - 三模式电荷泵 - 最大30mA的电流每输入 - 低IQ（50μA）在轻负载模式 •闪存电荷泵： - 稳压输出电压 - 高达250mA的脉冲电流 •独立背光/闪光控制 •低噪声1MHz恒定频率工作 •自动软启动 •无电感器 •可在TDFN44-16包装 应用 •彩色（RGB）照明 •白光LED背光 •白光LED闪光灯 |
| 规格书PDF |
