EUP3611-1A电荷泵Flash LED驱动器 DataSheet

概述
EUP3611是一款适用于相机模组Flash LED的电荷泵驱动芯片。相比采用电感升压的方式，EUP3611驱动方案只需一个充电电容，并具有更好的EMI性能。它可工作在闪光灯和手电筒两种工作模式下。在闪光灯模式下最大能输出1A电流，并内置了安全保护时间，以防止LED过热烧毁。
EUP3611采用TDFN-10和WCSP-12的封装。

特点
•输入3.6V时，闪光灯模式能输出最大1A电流
•具有闪光灯模式和手电筒模式
•闪光灯模式下具有安全保护时间
•1倍和2倍模式自由切换
•输入电压2.7V～5.5V
•通过Flash管脚能实现驱动与相机模组同步
•内置短路保护、过压保护、过流保护和过温保护功能
•具有软启动功能
•采用3mm×3mm的TDFN-10封装和1.2mm×1.6mm的WCSP-12封装
•符合RoHS规范及Pb-Free

应用
•移动手机相机模组
•数位相机
•具有照相功能的便携设备

EUP3611-1A Charge Pump LED Driver 

Description
The EUP3611 is a large-current charge pump designed specifically for white LEDs used in camera flash applications. Only one small bucket capacitor is required to develop the output drive, providing a low EMI solution compared with inductive boost regulators.
The EUP3611 has two operation modes: Flash mode and Movie mode. In Flash mode, the EUP3611 is capable of delivering up to 1A. A safety timer is also included to ensure the LED can not be on indefinitely and overheat.
The EUP3611 is available in a 10-pin TDFN and WCSP-12 packages.

Feature
•Flash mode - output current up to 1A at VIN=3.6V
•Flash and movie - two able modes
•Built in flash mode safety timer protection
•1X and 2X automatic mode for high efficiency
•Input range – 2.7V to 5.5V
•External flash control pin for synchronization to a camera module or graphics controller
•Short-circuit, over-voltage, over-current and over-temperature protection
•Soft-start functionality
•3mm 3mm TDFN-10 and 1.2mm 1.6mm WCSP-12 Packages
•RoHS compliant and 100% lead (Pb)-free Halogen-Free

Application
•Mobile Camera Phones
•Digital Cameras
•PDAs with Built-In Cameras