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首页 > Products > Led Driver > Non isolated LED Driver > Non Isolated linear Constant Current LED driver >Cxle86161 is a single channel high voltage linear constant current LED driver chip with switch section dimming function. Cxle86161 adopts built-in non-volatile memory technology
Cxle86161 is a single channel high voltage linear constant current LED driver chip with switch section dimming function. Cxle86161 adopts built-in non-volatile memory technology

Cxle86161 is a single channel high voltage linear constant current LED driver chip with switch section dimming function. Cxle86161 adopts built-in non-volatile memory technology, which can realize many different switch dimming functions by configuring non-volatile memory; cxle86161 also has brightness memory function, after a long-time switch off, power on again, and return to the last brightness state before the switch off; cxle86161 switch time detection is accurate, with error less than 5%, to ensure the dimming synchronization of multiple lamps in parallel; cxle861 Using linear constant current technology, the maximum driving current of LED light string is set through external resistance

Cxle86161 is a single channel high voltage linear constant current LED driver chip with switch section dimming function. Cxle86161 adopts built-in non-volatile memory technology
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1.产品概述       2.产品特点     i8J嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)i8J嘉泰姆

5.产品封装       6.电路原理图  i8J嘉泰姆

7.相关产品i8J嘉泰姆

   产品概述 返回TOPi8J嘉泰姆


       CXLE86161是一款具有开关分段调光功能的单通道高压线性恒流LED驱动芯片。CXLE86161采用内置非易失存储器技术,通过配置非易失存储器可以实现多种不同的开关调光功能;CXLE86161并且具有亮度记忆功能,长时间关断开关后,再次上电,恢复为关断前最后的亮度状态;CXLE86161开关时间检测准确,误差<5%,保证多个灯具并联时调光同步;CXLE86161采用线性恒流技术,通过外部电阻设定LED灯串的最大驱动电流。

   产品特点 返回TOPi8J嘉泰姆


n  内置16 Bytes 非易失存储器i8J嘉泰姆

     保存期限:3年,i8J嘉泰姆

擦写次数:100,000次i8J嘉泰姆

n  亮度记忆功能i8J嘉泰姆

n  2~8级分段,调亮度i8J嘉泰姆

n  每级32档亮度独立配置i8J嘉泰姆

n  开关检测时间可配置,误差<5%,i8J嘉泰姆

最小关断时间和最大关断时间可独立配置i8J嘉泰姆

n  输出恒流设置5~40mAi8J嘉泰姆

n  芯片间恒流精度偏差<+/-4%i8J嘉泰姆

n  具有温度补偿和过热保护功能i8J嘉泰姆

n  应用方案无EMI问题i8J嘉泰姆

n  ESOP8封装i8J嘉泰姆

   应用范围 返回TOPi8J嘉泰姆


n  LED日光灯管 T5/T8等规格i8J嘉泰姆

n  LED 吸顶灯i8J嘉泰姆

n  LED 球泡灯、筒灯i8J嘉泰姆

n  LED灯丝灯i8J嘉泰姆

   技术规格书(产品PDF) 返回TOP i8J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!i8J嘉泰姆

 QQ截图20160419174301.jpgi8J嘉泰姆

产品封装图 返回TOPi8J嘉泰姆


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引脚定义i8J嘉泰姆

引脚 编号i8J嘉泰姆

引脚  命名i8J嘉泰姆

引脚  类型i8J嘉泰姆

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VDDi8J嘉泰姆

电源i8J嘉泰姆

内部电源,外接滤波电容到地i8J嘉泰姆

2i8J嘉泰姆

TESTi8J嘉泰姆

数字双向i8J嘉泰姆

非易失存储器读写控制脚i8J嘉泰姆

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GNDi8J嘉泰姆

电源i8J嘉泰姆

芯片地i8J嘉泰姆

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CSi8J嘉泰姆

模拟双向i8J嘉泰姆

最大驱动电流设置,外接采样电阻到地i8J嘉泰姆

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DOUTi8J嘉泰姆

模拟输出i8J嘉泰姆

高压恒流输出,接LED灯串i8J嘉泰姆

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FLTi8J嘉泰姆

模拟双向i8J嘉泰姆

电流控制信号滤波,外接滤波电容到地i8J嘉泰姆

7i8J嘉泰姆

VDTi8J嘉泰姆

模拟输入i8J嘉泰姆

VAC电压检测输入i8J嘉泰姆

8i8J嘉泰姆

VCCi8J嘉泰姆

电源i8J嘉泰姆

30V外部输入电源i8J嘉泰姆

电路原理图 返回TOPi8J嘉泰姆


blob.pngi8J嘉泰姆

如图9.1所示,为CXLE86161开关调光LED驱动芯片的开关调节亮度的应用电路。R1、R2组成VAC分压电路,用于检测VAC波形;R3、D1、C1组成CXLE86161的供电电路,C1负责在开关断开时给芯片供电,C1取值根据最关断时间Tswmax选取;C2为内部VDD的滤波电容;R4设置电流源最大输出电流;C3为电流控制信号FLT滤波电容。i8J嘉泰姆

最大电流计算公式:   Imax=600(mV)/R4(Ω)i8J嘉泰姆

C1取值计算公式:    C1=2(uA/V)*Tswmax(ms)i8J嘉泰姆

blob.png

如图9.2所示,为CXLE86161开关调光LED驱动芯片的开关调节亮度的带填谷电容的应用电路。与图9.1比较,图9.2增加D2和C4,C4的取值与最大电流相关,可实现无频闪。i8J嘉泰姆

C4取值计算公式: C4=154(ms/V)*Imax(mA)i8J嘉泰姆

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