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首页 > Products > Led Driver > LED flashlight IC > LED Flashlight IC >Cxle8689 is a high efficiency, boost high brightness LED constant current driver chip. Cxle8689 sets the output current through the external resistance, and the maximum current can reach 850mA
Cxle8689 is a high efficiency, boost high brightness LED constant current driver chip. Cxle8689 sets the output current through the external resistance, and the maximum current can reach 850mA

Cxle8689 adopts the peak current control mode with fixed frequency and its working frequency is 1MHz, which can reduce the volume of external inductance and filter capacitance, improve efficiency and save PCB area. The feedback voltage of 95 MV makes the loss of RS resistor very small, so it has higher efficiency. A 2a, 100m Ω NMOS switch is built in the chip to ensure high efficiency during heavy load

Cxle8689 is a high efficiency, boost high brightness LED constant current driver chip. Cxle8689 sets the output current through the external resistance, and the maximum current can reach 850mA
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                          目录CiZ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)CiZ嘉泰姆

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

一.产品概述CiZ嘉泰姆


  CXLE8689是一款高效率,升压型高亮度LED灯恒流驱动芯片。 CXLE8689通过外接电阻设置输出电流,最大电流可达850mA。CXLE8689采用固定频率的峰值电流控制方式,其工作频率为1MHz,可使外部电感和 滤波电容体积减小,效率提高,节省PCB面积。95mV的反馈电压使得RS电阻上的损耗很小,从而具有更高的效率。芯片内置2A,100mΩ NMOS开关从而保证重载时的高效率。CXLE8689采用SOT23-6封装。CiZ嘉泰姆

二.产品特点CiZ嘉泰姆


 工作电压:0.9-4.2VCiZ嘉泰姆

  高效率:可达 90%CiZ嘉泰姆

  工作频率:1MHzCiZ嘉泰姆

  最大输出电流:850mACiZ嘉泰姆

  采样电阻反馈电压:95mVCiZ嘉泰姆

  内置 100mΩ MOSCiZ嘉泰姆

  过压保护CiZ嘉泰姆

  SOT23-6 封装CiZ嘉泰姆

三.应用范围CiZ嘉泰姆


  LED手电筒CiZ嘉泰姆

  其他LED灯    CiZ嘉泰姆

四.技术规格书(产品PDF)CiZ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!CiZ嘉泰姆

 QQ截图20160419174301.jpgCiZ嘉泰姆

五.产品封装图CiZ嘉泰姆


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六.电路原理图CiZ嘉泰姆


 blob.png  CiZ嘉泰姆

七.相关芯片选择指南    更多同类产品......CiZ嘉泰姆


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0.9V~5VCiZ嘉泰姆

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SOT89-3,SOT23-3/5CiZ嘉泰姆

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