Product information query
Products News
首页 > Products > Led Driver > Boost and Buck Linear CC LED driver > High Voltage Linear Buck LED Drive >Cxle8679 is a linear constant current LED driver chip with switch dimming function, which is applied in the field of LED lighting with mains input
Cxle8679 is a linear constant current LED driver chip with switch dimming function, which is applied in the field of LED lighting with mains input

Cxle8679 is a linear constant current LED driver chip with switch dimming function, which is applied in the field of LED lighting with mains input. for the first time
When power on, the output current is 100% of the normal setting current; when power on for the second time, the output current is 50% of the normal setting current; when power on for the third time, the output current is 100% of the normal setting current
When the power is on, the output current is 20% of the normal setting current. When the power is on for the fourth time, a new cycle will start again, that is to say, the output current is set as normal again
100% of the current, cycling in sequence. The chip integrates high voltage start circuit and high voltage power MOS tube, with the maximum withstand voltage of 700V, which can be directly connected to the rectifier
After 110V or 220V AC mains power supply, the application circuit is very simple, without inductance, no EMI problem when the system works, no 100Hz frequency
Flash

Cxle8679 is a linear constant current LED driver chip with switch dimming function, which is applied in the field of LED lighting with mains input
Manual
Ordering

Ordering

Product introduction

目录LWc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) LWc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
LWc嘉泰姆

一,产品概述(General Description)    LWc嘉泰姆


   CXLE8679 是一款带开关调光功能的线性恒流 LED 驱动芯片,应用于市电输入的 LED 照明领域。第一次LWc嘉泰姆
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%,第三次上LWc嘉泰姆
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定LWc嘉泰姆
电流的 100%,依次循环。芯片集成高压启动电路以及高压功率 MOS 管,最高耐压达700V,可以直接接整流LWc嘉泰姆
之后的 110V 或 220V 交流市电,应用电路非常简单,无需电感,系统工作时没有 EMI 的问题,没有 100Hz 频LWc嘉泰姆
闪。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。芯片具有 LED 开路保LWc嘉泰姆
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LWc嘉泰姆
二.产品特点(Features)
LWc嘉泰姆


具有开关调光功能LWc嘉泰姆
集成 700V 高压启动电路以及高压功率 MOSLWc嘉泰姆
无需电感LWc嘉泰姆
输入加电容,没有 100Hz 频闪LWc嘉泰姆
输入不加电容,PF>0.9LWc嘉泰姆
没有 EMI 问题LWc嘉泰姆
效率:>0.85LWc嘉泰姆
具有 LED 开路以及 LED 短路保护LWc嘉泰姆
120℃高温时输出电流减小LWc嘉泰姆
最大输出电流 50mALWc嘉泰姆
单颗最大输出功率 12WLWc嘉泰姆
封装形式:ESOP8LWc嘉泰姆
三,应用范围 (Applications)
LWc嘉泰姆


LED 日光灯管LWc嘉泰姆
LED 球泡灯LWc嘉泰姆
LED 吸顶灯LWc嘉泰姆
LED 吸顶灯LWc嘉泰姆
四.技术规格书下载(产品PDF)
LWc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!LWc嘉泰姆

 QQ截图20160419174301.jpgLWc嘉泰姆

五,产品封装图 (Package)LWc嘉泰姆


image.pngLWc嘉泰姆

管脚号LWc嘉泰姆

管脚LWc嘉泰姆
名称
LWc嘉泰姆

描述LWc嘉泰姆

1、2、3、4LWc嘉泰姆

VINLWc嘉泰姆

电源输入与恒流输出通道LWc嘉泰姆

5LWc嘉泰姆

ISETLWc嘉泰姆

输出电流设置端,外接电阻到 GNDLWc嘉泰姆

6LWc嘉泰姆

HOLDLWc嘉泰姆

断电后维持时间设定端,外接电容到 GNDLWc嘉泰姆

7LWc嘉泰姆

GNDLWc嘉泰姆

芯片地LWc嘉泰姆

8LWc嘉泰姆

DIMLWc嘉泰姆

调光信号检测脚,接受 VIN 断电信号LWc嘉泰姆

ExposedLWc嘉泰姆
PAD
LWc嘉泰姆

-LWc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LWc嘉泰姆

六.电路原理图LWc嘉泰姆


image.pngLWc嘉泰姆

七,功能概述LWc嘉泰姆


参数LWc嘉泰姆

额定值LWc嘉泰姆

单位LWc嘉泰姆

VIN 电压LWc嘉泰姆

-0.3~+700LWc嘉泰姆

VLWc嘉泰姆

ISET、HOLD、DIM 电压LWc嘉泰姆

-0.3~+6LWc嘉泰姆

VLWc嘉泰姆

最大输出电流LWc嘉泰姆

50LWc嘉泰姆

mALWc嘉泰姆

最大输出功率LWc嘉泰姆

12LWc嘉泰姆

WLWc嘉泰姆

储存环境温度LWc嘉泰姆

-50~+150LWc嘉泰姆

LWc嘉泰姆

工作环境温度LWc嘉泰姆

-40~+85LWc嘉泰姆

LWc嘉泰姆

工作结温范围LWc嘉泰姆

-40~150LWc嘉泰姆

LWc嘉泰姆

HBMLWc嘉泰姆

2000LWc嘉泰姆

VLWc嘉泰姆

MMLWc嘉泰姆

200LWc嘉泰姆

VLWc嘉泰姆

八,相关芯片选择指南LWc嘉泰姆


LED驱动芯片>超高压线性LWc嘉泰姆

产品名称LWc嘉泰姆

功率管LWc嘉泰姆

调光方式LWc嘉泰姆

封装LWc嘉泰姆

典型应用LWc嘉泰姆

最大功率LWc嘉泰姆

应用领域LWc嘉泰姆

CXLE8678LWc嘉泰姆

700VLWc嘉泰姆

三段开关LWc嘉泰姆

ESOP8LWc嘉泰姆

255V/45mALWc嘉泰姆

10WLWc嘉泰姆

LED日光灯LWc嘉泰姆

CXLE8679LWc嘉泰姆

700VLWc嘉泰姆

三段开关LWc嘉泰姆

ESOP8LWc嘉泰姆

255V/45mALWc嘉泰姆

12WLWc嘉泰姆

LED吸顶灯LWc嘉泰姆

CXLE8680LWc嘉泰姆

700VLWc嘉泰姆

不支持LWc嘉泰姆

SOT89-5/TO252-5LWc嘉泰姆

255V/45mALWc嘉泰姆

15WLWc嘉泰姆

LED筒灯LWc嘉泰姆

CXLE8681LWc嘉泰姆

700VLWc嘉泰姆

不支持LWc嘉泰姆

SOT89-3/TO252-3LWc嘉泰姆

280V/36mALWc嘉泰姆

18WLWc嘉泰姆

LED球泡灯LWc嘉泰姆