• [ CXLE87120 ]

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目录

1.产品概述       2.产品特点     dA0嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）dA0嘉泰姆

5.产品封装       6.电路原理图  dA0嘉泰姆

7.相关产品dA0嘉泰姆

   产品概述 返回TOPdA0嘉泰姆

The CXLE87120 is a current-regulated charge pump ideal for powering high brightness LEDs for camera flash applications. The charge pump can be set to regulate two current levels for Flash and Torch modes.

The CXLE87120 automatically switches modes between step-up and step-down ensuring that LED current does not depend on the forward voltage. It switches at 2.2MHz, allowing the use of tiny components. The supply voltage ranges from 2.7V to 5.5V and is ideally suited for all applications powered by a single Li-ion battery cell or three to four NiCd, NiMH, or Alkaline battery cells.dA0嘉泰姆

The CXLE87120 also features a very low shutdown current, an automatic soft-start mode to limit inrush current, as well as over-current, over-voltage and over-temperature thermal shutdown control. A low current-sense reference voltage (47mV) allows the use of small 0603 current sensing resistors.dA0嘉泰姆

The CXLE87120 is available in Green TDFN-3×3-10L package and is specified over an ambient temperature range of -40℃ to +85℃.dA0嘉泰姆

   产品特点 返回TOPdA0嘉泰姆

• Output Current Up to 500mAdA0嘉泰姆
• Up to 90% Efficiency in Torch ModedA0嘉泰姆
• Adjustable Flash Mode CurrentdA0嘉泰姆
• Automatic Buck/Boost Mode SwitchoverdA0嘉泰姆
• Input Voltage Range: 2.7V to 5.5VdA0嘉泰姆
• Minimum External Components: No InductorsdA0嘉泰姆
• High Frequency Operation: 2.2MHzdA0嘉泰姆
• Low 47mV Reference for Low Loss SensingdA0嘉泰姆
• I_Q < 1μa in shutdowndA0嘉泰姆
< 1μa in shutdowndA0嘉泰姆
< 1μa in shutdowndA0嘉泰姆
< 1μa in shutdowndA0嘉泰姆
< shutdown
< 1μa in shutdowndA0嘉泰姆
< 1μa in shutdowndA0嘉泰姆
< 1μa in shutdowndA0嘉泰姆
< 1μa in shutdowndA0嘉泰姆
< shutdowndA0嘉泰姆
< shutdowndA0嘉泰姆
< shutdown
• Automatic Soft-Start Limits Inrush CurrentdA0嘉泰姆
• Low Input and Output Ripple and Low EMIdA0嘉泰姆
• Output Over-Voltage ProtectiondA0嘉泰姆
• Over-Current and Over-Temperature ProtectiondA0嘉泰姆
• Available in Green TDFN-3×3-10L PackagedA0嘉泰姆

   应用范围 返回TOPdA0嘉泰姆

White LED Torch, Flash for CelldA0嘉泰姆
Phones, DSCs and CamcordersdA0嘉泰姆
White LED BacklightingdA0嘉泰姆
Generic Lighting, Flash and Strobe ApplicationsdA0嘉泰姆
General Purpose High Current BoostdA0嘉泰姆

   技术规格书（产品PDF) 返回TOP dA0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！dA0嘉泰姆

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产品封装图 返回TOPdA0嘉泰姆

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电路原理图 返回TOPdA0嘉泰姆

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