AAT2803ISK-4.5-T1 LED驱动电源IC 背光 1MHz 2.7V ~ 5.5V 4.5V TDFN44-24 OF 四种低电流设置/热保护
| 恒流Constant Current | |
| 恒压Constant Voltage | |
| 拓扑Topology | |
| 输出数Number of Outputs | 6 |
| 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 • Six-Channel White LED Backlight Charge Pump with Flash • VIN Range: 2.7V to 5.5V • Dual Charge Pump: — Flash: Charge Pump Doubler — Backlight: Tri-Mode Charge Pump • Backlight Charge Pump: — Programmable Current With Single GPIO — 16 Current Steps — 15/20/30mA Max Current — Four Low Current Settings — Individual Main/Sub-Group Control — Low IQ (50μA) for Low-Current Mode — Drives Six Channels of LEDs • Flash Charge Pump: — Regulated VOUT_FL 4.5/5.0 Volts — Up to 300mA of Current for Flash • 1MHz Constant Switching Frequency • Independent Backlight/Flash Control • Built-In Thermal Protection • Built-In Auto-Disable for Open Circuit • Automatic Soft Start • IQ <1μA in Shutdown • Available in QFN44-24 Package Applications • Color (RGB) Lighting • Programmable Current Sink • White LED Backlighting • White Photo Flash for Digital Still Cameras |
| 描述与应用 | 特点 •六通道白光LED背光电荷泵与Flash •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 •背光电荷泵： - 可编程电流与单GPIO - 16当前步骤 - 15/20/30mA最大电流 - 四种低电流设置 - 个人主/子集团控制 - 低智商低电流模式（50μA） - 驱动6个通道的LED •闪存电荷泵： - 稳压VOUT_FL4.5/5.0伏特 - 高达300mA的电流为Flash •1MHz恒定开关频率 •独立背光/闪光控制 •内置热保护 •内置自动禁用开路 •自动软启动 •IQ停机时<1uA •提供QFN44-24封装 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 |
| 规格书PDF |
