AAT2842IBJ-EE-T1 数据手册 - AnalogicTech

●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