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首页 > Products > Led Driver > Streetlight Spotlight Loghting Desk-lamp Lawn-lamp > LED Flashing Lights >Cxle87100 is a boost DC-DC voltage regulator with adjustable output current The chip works at a constant switching frequency of 1.0mhz allowing the use of small external inductors and ceramic capacitors
Cxle87100 is a boost DC-DC voltage regulator with adjustable output current The chip works at a constant switching frequency of 1.0mhz allowing the use of small external inductors and ceramic capacitors

The cxle87100 uses two alkaline batteries to drive up to 1a load current. LED current can be programmed by external current detection resistor, RS is connected between feedback pin (FB) and ground. 95 MV low feedback voltage reduces the loss of RS for better efficiency. The built-in 2a, 100m Ω NMOS switch enables the chip to provide high efficiency under heavy load

Cxle87100 is a boost DC-DC voltage regulator with adjustable output current The chip works at a constant switching frequency of 1.0mhz allowing the use of small external inductors and ceramic capacitors
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   产品概述 返回TOPY4t嘉泰姆


CXLE87100是一款提供可调节输出电流的升压型DC-DC稳压器,芯片工作于1.0MHz恒定的开关频率,允许 使用小型的外部电感和陶瓷电容。CXLE87100使用两节碱性电池可以驱动高达1A负载电流。LED电流可以通 过外部电流检测电阻来编程,Rs连接在反馈引脚(FB)和地之间。95mV低反馈电压降低了Rs的损耗以获 得更好效率。内置2A,100mΩ NMOS开关管,使芯片在重负载下也能提供高效率。在关断模式,反馈电 阻Rs和负载完全断开,消耗电流减小到1uA以下。CXLE87100采用SOT-23-6L封装。Y4t嘉泰姆

   产品特点 返回TOPY4t嘉泰姆


LED电源效率:高达90% Y4t嘉泰姆
电流精度:5%(Vin=3.6V~1.8V@Vf=3.7V) Y4t嘉泰姆
低启动电压:0.9V(ILED=270mA) Y4t嘉泰姆
低保持电压:0.75V(ILED=200mA) Y4t嘉泰姆
1MHz开关频率 Y4t嘉泰姆
使用微型外部原件 Y4t嘉泰姆
低RDS(ON):100mA(典型值) Y4t嘉泰姆
 过温保护 Y4t嘉泰姆
小型SOT-23-6L封装 
Y4t嘉泰姆

   应用范围 返回TOPY4t嘉泰姆


白光LED手电 Y4t嘉泰姆

白光LED相机闪光灯 Y4t嘉泰姆

手机摄像头闪光灯 Y4t嘉泰姆

PDA相机闪光灯 Y4t嘉泰姆

摄像机闪光灯Y4t嘉泰姆

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