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首页 > Products > Led Driver > LED Driver Chip > High PF No Strobe >Cxle8678 is a high power factor linear constant current LED driver chip with switch dimming function, which is applied in the field of LED lighting with mains input.
Cxle8678 is a high power factor linear constant current LED driver chip with switch dimming function, which is applied in the field of LED lighting with mains input.

Cxle8678 is a high power factor linear constant current LED driver chip with switch dimming function, which is applied in the field of LED lighting with mains input.
In the first power on, the output current is 100% of the normal setting current; in the second power on, the output current is 50% of the normal setting current; in the third power on, the output current is 50% of the normal setting current
At the second power on, the output current is 20% of the normal setting current, and at the fourth power on, a new cycle will start again, that is, the output current is set to normal again
100% of the constant current, cycling in turn. Internal chip integrated with high voltage start circuit and high voltage power MOS tube, with the maximum withstand voltage of 700V, which can be directly connected and integrated
The application circuit of 110V or 220V AC mains power after the current flow is very simple, without electrolytic capacitor and inductance, and the system has no EMI problem during operation
It has the characteristics of high power factor and low harmonic distortion. The chip uses the special linear constant current control technology, which makes the current precision between chips less than 5%.

Cxle8678 is a high power factor linear constant current LED driver chip with switch dimming function, which is applied in the field of LED lighting with mains input.
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目录K5Z嘉泰姆

1.产品概述       2.产品特点     3.应用范围      4.技术规格书下载(产品PDF文档) K5Z嘉泰姆
5.产品封装图   6.电路原理图  7.功能概述      8.相关产品
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 K5Z嘉泰姆

一,产品概述(General Description)      K5Z嘉泰姆


   CXLE8678 是一款带开关调光功能的高功率因数线性恒流LED 驱动芯片,应用于市电输入的 LED 照明领域。K5Z嘉泰姆
第一次上电时,输出电流为正常设定电流的 100%,第二次上电时,输出电流为正常设定电流的 50%,第三K5Z嘉泰姆
次上电时,输出电流为正常设定电流的 20%,第四次上电时又会重新开始新的循环,即输出电流又为正常设K5Z嘉泰姆
定电流的 100%,依次循环。内芯片集成高压启动电路以及高压功率 MOS 管,最高耐压达 700V,可以直接接整K5Z嘉泰姆
流之后的 110V 或 220V 交流市电,应用电路非常简单,无需电解电容和电感,系统工作时没有EMI 的问题,且具K5Z嘉泰姆
有高功率因数和低谐波失真的特点。芯片使用专有的线性恒流控制技术,使得芯片之间的电流精度控制在 5%以内。K5Z嘉泰姆
芯片具有 LED 开路保护、LED 短路保护以及温度补偿功能,使得应用时系统具有最大程度的安全性。K5Z嘉泰姆
二.产品特点(Features)
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具有开关调光功能K5Z嘉泰姆
集成 700V 高压启动电路以及高压功率 MOSK5Z嘉泰姆
无需电解电容以及电感K5Z嘉泰姆
没有 EMI 问题K5Z嘉泰姆
功率因数:>0.95K5Z嘉泰姆
效率:>0.85K5Z嘉泰姆
具有 LED 开路以及 LED 短路保护K5Z嘉泰姆
120℃高温时输出电流减小K5Z嘉泰姆
最高输出平均电流 40mAK5Z嘉泰姆
单颗最大输出功率 10WK5Z嘉泰姆
封装形式:ESOP8K5Z嘉泰姆
三,应用范围 (Applications)
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LED 日光灯管K5Z嘉泰姆
LED 球泡灯K5Z嘉泰姆
LED 吸顶灯K5Z嘉泰姆
LED 面板灯K5Z嘉泰姆
四.技术规格书下载(产品PDF)
K5Z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!K5Z嘉泰姆

 QQ截图20160419174301.jpgK5Z嘉泰姆

五,产品封装图 (Package)K5Z嘉泰姆


 K5Z嘉泰姆

image.pngK5Z嘉泰姆

管脚号K5Z嘉泰姆

管脚名称K5Z嘉泰姆

描述K5Z嘉泰姆

1K5Z嘉泰姆

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电源输入端K5Z嘉泰姆

2K5Z嘉泰姆

CH1K5Z嘉泰姆

输出通道 1K5Z嘉泰姆

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CH2K5Z嘉泰姆

输出通道 2K5Z嘉泰姆

4K5Z嘉泰姆

CH3K5Z嘉泰姆

输出通道 3K5Z嘉泰姆

5K5Z嘉泰姆

ISETK5Z嘉泰姆

输出电流设置端,外接电阻到 GNDK5Z嘉泰姆

6K5Z嘉泰姆

HOLDK5Z嘉泰姆

断电后维持时间设定端,外接电容到 GNDK5Z嘉泰姆

7K5Z嘉泰姆

GNDK5Z嘉泰姆

芯片地K5Z嘉泰姆

8K5Z嘉泰姆

DIMK5Z嘉泰姆

调光信号检测脚,接受 VIN 断电信号K5Z嘉泰姆

ExposedK5Z嘉泰姆
PAD
K5Z嘉泰姆

-K5Z嘉泰姆

散热底座,为降低芯片温度,散热片须与 PCB 有良好焊接K5Z嘉泰姆

六.电路原理图K5Z嘉泰姆


image.pngK5Z嘉泰姆

七,功能概述K5Z嘉泰姆


参数K5Z嘉泰姆

额定值K5Z嘉泰姆

单位K5Z嘉泰姆

VIN、CH1、CH2、CH3 电压K5Z嘉泰姆

-0.3~+700K5Z嘉泰姆

VK5Z嘉泰姆

ISET、HOLD、DIM 电压K5Z嘉泰姆

-0.3~+6K5Z嘉泰姆

VK5Z嘉泰姆

最大输出电流K5Z嘉泰姆

50K5Z嘉泰姆

mAK5Z嘉泰姆

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10K5Z嘉泰姆

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储存环境温度K5Z嘉泰姆

-50~+150K5Z嘉泰姆

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工作环境温度K5Z嘉泰姆

-40~+85K5Z嘉泰姆

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工作结温范围K5Z嘉泰姆

-40~150K5Z嘉泰姆

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2000K5Z嘉泰姆

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200K5Z嘉泰姆

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八,相关芯片选择指南K5Z嘉泰姆


LED驱动芯片>超高压线性K5Z嘉泰姆

产品名称K5Z嘉泰姆

功率管K5Z嘉泰姆

调光方式K5Z嘉泰姆

封装K5Z嘉泰姆

典型应用K5Z嘉泰姆

最大功率K5Z嘉泰姆

应用领域K5Z嘉泰姆

CXLE8678K5Z嘉泰姆

700VK5Z嘉泰姆

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ESOP8K5Z嘉泰姆

255V/45mAK5Z嘉泰姆

10WK5Z嘉泰姆

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12WK5Z嘉泰姆

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700VK5Z嘉泰姆

不支持K5Z嘉泰姆

SOT89-5/TO252-5K5Z嘉泰姆

255V/45mAK5Z嘉泰姆

15WK5Z嘉泰姆

LED筒灯K5Z嘉泰姆

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700VK5Z嘉泰姆

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SOT89-3/TO252-3K5Z嘉泰姆

280V/36mAK5Z嘉泰姆

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