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首页 > Products > Led Driver > LED flashlight IC > LED Flashlight IC >Cxle8722 is a constant current driver chip for LED with voltage rise and fall which is especially suitable for LED lamps powered by lithium battery or three dry batteries
Cxle8722 is a constant current driver chip for LED with voltage rise and fall which is especially suitable for LED lamps powered by lithium battery or three dry batteries

When the power supply voltage is lower than the on voltage of the LED lamp, cxle8722 works in the step-up state; when the power supply voltage is higher than the on voltage of the LED lamp, cxle8722 works in the step-down state. The working voltage range of cxle8722 is 2.4V to 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%. Cxle8722 provides 2.4V undervoltage protection and 5V open circuit protection

Cxle8722 is a constant current driver chip for LED with voltage rise and fall which is especially suitable for LED lamps powered by lithium battery or three dry batteries
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   产品概述 返回TOPY0q嘉泰姆


CXLE8722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,CXLE8722工作于升压状态;当电源电压高于LED灯的导通电压时,CXLE8722工作于降压状态。 CXLE8722工作电压范围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。 CXLE8722提供2.4V的欠压保护和5V的开路保护功能。 CXLE8722用SOP8 封装。Y0q嘉泰姆

   产品特点 返回TOPY0q嘉泰姆


 工作电压:2.4V~5.5V Y0q嘉泰姆

 LED 电流:小于 500mA Y0q嘉泰姆

 LED 电流由外接电阻设定 Y0q嘉泰姆

 效率:高达 90% Y0q嘉泰姆

 欠压保护电压:2.4V Y0q嘉泰姆

 开路保护电压:5V Y0q嘉泰姆

 电流精度:±5%Y0q嘉泰姆

   应用范围 返回TOPY0q嘉泰姆


 锂电池供电的 LED 灯具 Y0q嘉泰姆

 三节干电池供电的 LED 灯具Y0q嘉泰姆

   技术规格书(产品PDF) 返回TOP Y0q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!Y0q嘉泰姆

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产品封装图 返回TOPY0q嘉泰姆


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电路原理图 返回TOPY0q嘉泰姆


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支持对0V电池充电|温升自动降低充电电流|带LED指示状态,带充电指示与放电欠压指示功能| 有全亮/半亮/微亮/暴闪/SOS工作状态,通过按键循环|带电池反接保护/LED开路/短路/过流/过热等保护功能|可驱动1-多个大功率LED灯并联|适合单节锂电池LED手电筒应用Y0q嘉泰姆