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首页 > Products > Led Driver > LED flashlight IC > LED Flashlight IC >Cxle8701 is a constant current driver chip for LED with voltage rise and fall, which is especially suitable for the power supply of lithium battery or three dry batteries LED lamps
Cxle8701 is a constant current driver chip for LED with voltage rise and fall, which is especially suitable for the power supply of lithium battery or three dry batteries LED lamps

When the power supply voltage is lower than the on voltage of the LED lamp, cxle8701 works in the boost state; when the power supply voltage is higher than the on voltage of the LED lamp, cxle8701 works in the linear step-down state.
The working voltage of cxle8701 is between 2.4V and 5.5V, the working current is less than 500mA, and the efficiency is up to 90%. The LED current is set by the external resistance, and the current accuracy is within 5%.
Cxle8701 also provides 2.4V undervoltage protection and 5V open circuit protection

Cxle8701 is a constant current driver chip for LED with voltage rise and fall, which is especially suitable for the power supply of lithium battery or three dry batteries LED lamps
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                          目录0P2嘉泰姆

   1.产品概述      2.产品特点      3.应用范围     4.技术规格书下载(PDF文档)0P2嘉泰姆

   5.产品封装      6.电路原理图     7.相关产品0P2嘉泰姆

一.产品概述0P2嘉泰姆


   CXLE8701是一款升降压型LED恒流驱动芯片,特别适合于锂电池或三节干电池供电的LED灯具。当电源电压低于LED灯的导通电压时,CXLE8701工作于升压状态;当电源电压高于LED灯的导通电压时,CXLE8701工作于线形降压状态。0P2嘉泰姆
   CXLE8701工作电压在2.4V至5.5V,工作电流小于500mA,效率高达90%,LED电流大小由外接电阻设定,电流精度在5%以内。0P2嘉泰姆
   CXLE8701还提供2.4V的欠压保护和5V的开路保护功能。0P2嘉泰姆
   CXLE8701采用SOP8封装。  
0P2嘉泰姆

二.产品特点0P2嘉泰姆


工作电压:2.4V~5.5V

LED电流:小于500mA0P2嘉泰姆

LED电流由外接电阻设定0P2嘉泰姆
效率:高达90%0P2嘉泰姆
欠压保护电压:2.4V0P2嘉泰姆
开路保护电压:5V0P2嘉泰姆
电流精度:±5%

三.应用范围0P2嘉泰姆


锂电池供电的LED灯具0P2嘉泰姆

三节干电池供电的 LED 灯具    0P2嘉泰姆

四.技术规格书(产品PDF)0P2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!0P2嘉泰姆

 QQ截图20160419174301.jpg0P2嘉泰姆

五.产品封装图0P2嘉泰姆


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六.电路原理图0P2嘉泰姆


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七.相关芯片选择指南0P2嘉泰姆


LED手电筒专用IC
产品型号 输入电压 输出电压 输出电流 工作效率 产品封装 备注
CXLE8701 2.4-5.5V 升降压 ≦500mA 90% SOP8 升降压型,内置MOS管,电流精度±5%
CXLE8702 0.8-4V 升压 100-800mA ≧80% SOT-89-3 内置MOS管,适用于大功率LED手电筒
CXLE8703 2-6V 升压 200mA ≦85% SOT23、SOT23-5、TO92 可用在升压、降压应用电路,电流可扩展到2.0A
CXLE8704 1.6-3.2V 高于输入电压 250mA 80 SOT23-3 TO-92 升压恒流
CXLE8705 0.9-3.2V 高于输入电压 3~6个20mA LED灯 80 SOT23-3 升压恒流