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首页 > Products > Led Driver > Streetlight Spotlight Loghting Desk-lamp Lawn-lamp > Solar Lamp Controller >Cxle8874 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
Cxle8874 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, cxle8874 works in the step-up state; when the power supply voltage is higher than the on voltage of the LED lamp, cxle8874 works in the step-down state.
The working voltage range of cxle8874 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%.
Cxle8874 also provides 2.4V undervoltage protection and 5V open circuit protection.

Cxle8874 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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1.产品概述       2.产品特点     m20嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)m20嘉泰姆

5.产品封装       6.电路原理图  m20嘉泰姆

7.相关产品m20嘉泰姆

   产品概述 返回TOPm20嘉泰姆


CXLE8874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,CXLE8874工作于升压状态;当电源电压高于 LED 灯的导通电压时,CXLE8874工作于降压状态。 m20嘉泰姆

CXLE8874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。 

CXLE8874还提供2.4V的欠压保护和5V的开路保护功能。 

CXLE8874采用SOP8封装。

   产品特点 返回TOPm20嘉泰姆


 工作电压:2.4V~5.5V m20嘉泰姆

 LED 电流:小于 500mA m20嘉泰姆

 LED 电流由外接电阻设定 m20嘉泰姆

 效率:高达 90% m20嘉泰姆

 欠压保护电压:2.4V m20嘉泰姆

 开路保护电压:5V m20嘉泰姆

 电流精度:±5%m20嘉泰姆

   应用范围 返回TOPm20嘉泰姆


 锂电池供电的 LED 灯具 m20嘉泰姆

 三节干电池供电的 LED 灯具m20嘉泰姆

   技术规格书(产品PDF) 返回TOP m20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!m20嘉泰姆

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产品封装图 返回TOPm20嘉泰姆


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电路原理图 返回TOPm20嘉泰姆


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升降压型LED射灯驱动IC
型号 工作电压范围 输出电流 输出电流精度 效率 工作频率 调光功能 封装 
CXLE8870 2.5V-30V 内置3A MOS 2% 90% 460KHz 模拟调光/PWM调光 ESOP-8
CXLE8871 2.5V-40V 内置3A MOS 2% 92% 460KHz 模拟调光/PWM调光 ESOP-8
CXLE8872 2.5V-40V 外置MOS扩流 2% 90% 460KHz 模拟调光/PWM调光 SOP-8
CXLE8873 2.2V-5.0V 0.7A 3% 95% 1.15MKHz PWM调光 MSOP-10
CXLE8874 2.4V-5.5V 0.5A         SOP-8