目录

1.产品概述       2.产品特点     HQ2嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）HQ2嘉泰姆

5.产品封装       6.电路原理图  HQ2嘉泰姆

7.相关产品HQ2嘉泰姆

   产品概述 返回TOPHQ2嘉泰姆

The CXUS65171 is a charge pump for high-current white LED driving used in camera flash applications. The architecture of two bucket capacitors is used to decrease the output ripple and provides low EMI solution compared to inductive DC-DC regulators. The CXUS65171 has independent flash/torch/shutdown modes. The CXUS65171 is capable to output 500mA of regulated current in flash mode for the duration greater than 500ms. While driving 700mA output current, the reduced duration is limit by CXUS65171’s over-temperature protection. There is a one second safety timer in this mode to avoid LED damage caused by overheat. The CXUS65171 can outputs 20% of flash mode current continuously in torch mode. The flash mode has priority over the torch mode. A resistor connected to ISET pin, which is in series with the LED, is to set the current. The ISET voltage is 250mV and 50mV in flash and torch mode respectively. The GCXUS65171is available in tiny 10-pin 3x3mm TDFN package.

   产品特点 返回TOPHQ2嘉泰姆

„ Independent flash/torch/shutdown modes HQ2嘉泰姆

„ Up to 700mA drive current HQ2嘉泰姆

„ Flash timeout protection HQ2嘉泰姆

„ Torch mode set to 20% of flash current HQ2嘉泰姆

„ 1X/2X mode for torch mode to maximize efficiency HQ2嘉泰姆

 „ Wide input voltage range from 3V to 5.5V HQ2嘉泰姆

„<1μA shutdown current HQ2嘉泰姆

„ Input/Output over-voltage protection HQ2嘉泰姆

„ Short-circuit protection HQ2嘉泰姆

„ Over-temperature protection HQ2嘉泰姆

„ Tiny TDFN3X3-10 packageHQ2嘉泰姆

   应用范围 返回TOPHQ2嘉泰姆

„ Cellular camera phone HQ2嘉泰姆

„ Digital still camera HQ2嘉泰姆

„ PDA camera HQ2嘉泰姆

„ Camcorder torch lampHQ2嘉泰姆

   技术规格书（产品PDF) 返回TOP HQ2嘉泰姆

     需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！HQ2嘉泰姆

 HQ2嘉泰姆

产品封装图 返回TOPHQ2嘉泰姆

HQ2嘉泰姆

电路原理图 返回TOPHQ2嘉泰姆

HQ2嘉泰姆

相关芯片选择指南 返回TOP                           更多同类产品......

 HQ2嘉泰姆