AAT2842IBJ-EE-T1 LED驱动电源IC 背光 2MHz 2.7V ~ 5.5V 1.2V ~ 5.5V TQFN44-28 UWV/TG 热保护/自动软启动/静态电流
| 恒流Constant Current | |
| 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 | 闪光 双LDO Flash Dual LDO |
| 频率Frequency | 2MHz |
| 电源电压Voltage - Supply | 2.7V ~ 5.5V |
| 输出电压Voltage - Output | 1.2V ~ 5.5V |
| Description & Applications | FEATURES • High-Current Charge Pump with S2Cwire™ Control and Dual LDO for Backlight and Flash • VIN Range: 2.7V to 5.5V • Tri-Mode Charge Pump: — Drives up to Four Backlight/Keypad and Four Flash LEDs — Separate S2Cwire Control for Backlight/Keypad and Flash Currents — Backlight/Keypad and Flash Current Set by Separate External Resistors — Flash Timer Set with External Capacitor — Up to 2MHz Switching Frequency • Two Linear Regulators: — 200mA Output Current — 200mV Dropout — Output Voltage Adjustable from 1.2V to VBATTERY — Output Auto-Discharge for Fast Shutdown — 85µA Quiescent Current • Built-In Thermal Protection • Automatic Soft Start • -40°C to +85°C Temperature Range • Available in 4x4mm TQFN44-28 Package Applications • Camera-Enabled Mobile Devices • Digital Still Cameras • Multimedia Mobile Phones |
| 描述与应用 | 特点 •高电流电荷泵S2Cwire™背光和闪光控制和双LDO •VIN范围：2.7V至5.5V •三模式电荷泵： - 驱动多达4个背光/键盘和四个闪光LED - 独立的S2Cwire控制背光/键盘和闪光电流 - 背光/键盘和闪光电流由独立的外部电阻设置 - 闪光计时器设置与外部电容 - 高达2MHz的开关频率 •两个线性稳压器： - 200mA输出电流 - 200mV压差 - 输出电压可调从1.2V到VBATTERY的 - 输出自动放电快速关机 - 85μA静态电流 •内置热保护 •自动软启动 •-40°C至+85°C温度范围 •提供的4x4mm TQFN44-28包装 应用 •相机功能的移动设备 •数码相机 •多媒体手机 |
| 规格书PDF |
