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首页 > Products > Led Driver > LED flashlight IC > LED Flashlight IC >Cxle87128 is a multifunctional constant current LED flashlight special chip which works from 2.5V to 5.5V It has constant current output and adjustable current
Cxle87128 is a multifunctional constant current LED flashlight special chip which works from 2.5V to 5.5V It has constant current output and adjustable current

Two pins opt1 and OPT2 provide four different working modes for selection. The power transistor is integrated inside the chip, and the flashlight function is very simple on the periphery. The chip is also integrated with state register and oscillator circuit. Under the control of flashlight key, cxle87128 can control the led to cycle between full light, half light, weak light, burst light and SOS in turn, which is very suitable for flashlight application. The current of cxle87128 is fixed internally for about 1A; the current of cxle87128b is less than 1.4A, and the current is adjustable externally; if more current is needed, two cxle87128 are used in parallel.

Cxle87128 is a multifunctional constant current LED flashlight special chip which works from 2.5V to 5.5V It has constant current output and adjustable current
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1.产品概述       2.产品特点     wgl嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)wgl嘉泰姆

5.产品封装       6.电路原理图  wgl嘉泰姆

7.相关产品wgl嘉泰姆

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     CXLE87128是一款工作于2.5V到5.5V的多功能恒流LED手电筒专用芯片,恒定电流输出,并且电流可以调整,可以用来驱动包括白光发光二极管在内的各类发光二极管。两个引脚OPT1和OPT2提供4种不同的 工作模式进行选择,芯片内部集成有功率晶体管,手电筒功能上外围非常简单。芯片内部还集成有状态寄 存器和振荡器电路,在手电筒按键的控制下,CXLE87128可以控制LED在全亮、半亮、弱光、爆闪和SOS等状态之间依次循环,非常适合手电筒的应用。CXLE87128 电流内部固定约 1A;CXLE87128B 小于 1.4A,并且电流外部 可调;需要更大电流的采用 2 颗 CXLE87128 并联。

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输出驱动能力:恒流 0.1~1.4Awgl嘉泰姆

OPT1 和 OPT2 组成 4 种不同的工作模式wgl嘉泰姆

工作电压 2.5V~5.5Vwgl嘉泰姆

芯片内部集成 NMOS 功率管wgl嘉泰姆

外围电路简单wgl嘉泰姆

输出电流精度 5%(3.4V~4.4V)wgl嘉泰姆

输出电流可调 wgl嘉泰姆

具有全亮、半亮、弱光、爆闪和 SOS 功能wgl嘉泰姆

可驱动大功率 LED 灯具wgl嘉泰姆

软启动功能wgl嘉泰姆

过温保护wgl嘉泰姆

欠压保护wgl嘉泰姆

LED 短路保护wgl嘉泰姆

封装型式:SOP8L、ESOP8wgl嘉泰姆

   应用范围 返回TOPwgl嘉泰姆


LED 手电筒、台灯和矿灯wgl嘉泰姆

手电筒移动电源wgl嘉泰姆

   技术规格书(产品PDF) 返回TOP wgl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!wgl嘉泰姆

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