• [ CXLE8289 ]"

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1.产品概述       2.产品特点     Kbw嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）Kbw嘉泰姆

5.产品封装       6.电路原理图  Kbw嘉泰姆

7.相关产品Kbw嘉泰姆

   产品概述 返回TOPKbw嘉泰姆

     The CXLE8289 is a step-down constant current LED driver. When the input voltage down to lower than LED forward voltage, then CXLE8289 run into LDO mode.The CXLE8289 supports a range of input voltages from 2.5V to 6.0V,allowing the use of a single Li+/Li-polymer cell, 3AA or 4AA cell, USB,and other standard power sources.The FB voltage is only 0.1V to achieve high efficiency.CXLE8289 employ internal power switch and synchronous rectifier to minimize external part count and realize high efficiency.During shutdown, the input is disconnected from the output and the shutdown current is less than 1μA. Other key features include under voltage lockout to prevent deep battery discharge of the Li+ battery. 

 CXLE8289是一款高效率1A降压1-5W白光LED驱动器。当输入电压下降到LED的正向电压，CXLE8289运行到LDO模式.CXLE8289支持从2.5V-6.0V输入电压范围内,让单节锂离子电池,3AA或4AA电池,USB和其他标准电源使用.实现高效率FB电压只有0.1V.

产品特点 返回TOPKbw嘉泰姆

• Efficiency up to 93%Kbw嘉泰姆

• 180μA(typ) Quiescent CurrentKbw嘉泰姆

• Output Current: Up to 1AKbw嘉泰姆

• Internal Synchronous RectifierKbw嘉泰姆

• 1.5MHz Switching FrequencyKbw嘉泰姆

• Soft-StartKbw嘉泰姆

• Under-Voltage LockoutKbw嘉泰姆

• Short LED ProtectionKbw嘉泰姆

• Open LED ProtectionKbw嘉泰姆

• Thermal ShutdownKbw嘉泰姆

• 5-Pin Small TSOT25 PackagesKbw嘉泰姆

• Pb-Free PackageKbw嘉泰姆

   应用范围 返回TOPKbw嘉泰姆

• 3AA or 4AA Batteries Powered FlashlightKbw嘉泰姆

• 1 Cell Li-Ion Battery Powered FlashlightKbw嘉泰姆

   技术规格书（产品PDF) 返回TOP Kbw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！Kbw嘉泰姆

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产品封装图 返回TOPKbw嘉泰姆

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电路原理图 返回TOPKbw嘉泰姆

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◀ Previous:Cxle8288 is a LED function driver chip which can switch the control function of light touch switch. It can directly drive 1-5wled ed. It adopts a very small SOT23-6 package form. Only one capacitor is needed

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Next▶: CXLE8290 is a single-stage，primary side control AC-DC LED driver with active power factor integrates on-chip PFC circuit operates in critical conduction mode to achieve high power factor and reduce the correction