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首页 > Products > Led Driver > Isolated LED Driver > Isolated No PFC >Cxle8419 is a constant current driver chip with three section switch dimming function. Suitable for 85vac ~ 265vacFull voltage input range of isolated LED lighting system dimming application
Cxle8419 is a constant current driver chip with three section switch dimming function. Suitable for 85vac ~ 265vacFull voltage input range of isolated LED lighting system dimming application

The CXLE8419 integrates the three section switch dimming function. The output current of LED can be operated at 100% and 50% through the switch of common switch
Switch between and 10%. Cxle8419's dimming mode is simple and convenient. It only needs ordinary switches without additional dimmers, which is simplified
LED lighting system design.
Cxle8419 adopts the control mode of original side feedback, through the information of original side feedback, high-precision LED constant current output can be realized. CXLE8419
Working in the quasi resonant switch mode, the power tube is in the state of zero current conduction. This effectively reduces the switching loss of the power tube and improves the system efficiency. Cxle8419 integrates line voltage compensation and load compensation functions, and the system has excellent line voltage regulation and load regulation. Cxle8419 working
Wide voltage range, suitable for 85vac ~ 265vac full voltage range AC input. At the same time, cxle8419 integrates multiple protection functions to ensure
The system is stable and reliable

Cxle8419 is a constant current driver chip with three section switch dimming function. Suitable for 85vac ~ 265vacFull voltage input range of isolated LED lighting system dimming application
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Product introduction

目录r8s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) r8s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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一,产品概述(General Description)      r8s嘉泰姆


   CXLE8419是一款具有三段式开关调光功能的原边反馈LED恒流驱动芯片。适合于85VAC~265VACr8s嘉泰姆
全电压输入范围的隔离式LED照明系统调光应用r8s嘉泰姆
      CXLE8419集成了三段式开关调光功能。LED输出电流可以通过普通开关的开关动作在100%、50%r8s嘉泰姆
和10%之间进行切换。CXLE8419的调光方式简单方便,只需要普通的开关而不需要额外的调光器,简化r8s嘉泰姆
了LED照明系统的设计。r8s嘉泰姆
     CXLE8419采用原边反馈的控制方式,通过原边反馈的信息即可以实现高精度的LED恒流输出。CXLE8419r8s嘉泰姆
工作在准谐振开关模式,功率管处于零电流状态导通。这有效地减小了功率管的开关损耗,提高了系统效率。CXLE8419集成了线电压补偿和负载补偿功能,系统具有优异的线电压调整率和负载调整率。CXLE8419工作r8s嘉泰姆
电压范围宽,适用于85VAC~265VAC全电压范围的交流输入。同时CXLE8419集成了多种保护功能以保证r8s嘉泰姆
系统的稳定和可靠。包括VCC供电过压保护,VCC供电欠压保护,LED开路、短路保护,芯片过温保护等r8s嘉泰姆
二.产品特点(Features)
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集成三段式开关调光功能r8s嘉泰姆
100%,50%,10%调光亮度r8s嘉泰姆
原边反馈恒流控制,无需次级反馈电路r8s嘉泰姆
准谐振开关模式,开关损耗小r8s嘉泰姆
±3%的 LED 输出电流精度r8s嘉泰姆
优异的线电压调整率和负载调整率r8s嘉泰姆
超低启动电流r8s嘉泰姆
LED 输出开路保护r8s嘉泰姆
LED 输出短路保护r8s嘉泰姆
VCC 供电过压、欠压保护r8s嘉泰姆
自动重启动功能r8s嘉泰姆
芯片过温保护r8s嘉泰姆
采用 SOP8L 封装r8s嘉泰姆
三,应用范围 (Applications)
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LED 球泡灯,LED 射灯r8s嘉泰姆
LED 日光灯,LED 筒灯r8s嘉泰姆
LED 吸顶灯,LED PAR 灯r8s嘉泰姆
其它 LED 照明r8s嘉泰姆
四.技术规格书下载(产品PDF)
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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!r8s嘉泰姆

 QQ截图20160419174301.jpgr8s嘉泰姆

五,产品封装图 (Package)r8s嘉泰姆

image.pngr8s嘉泰姆

管脚编号r8s嘉泰姆

管脚名称r8s嘉泰姆

描述r8s嘉泰姆

1r8s嘉泰姆

COMPr8s嘉泰姆

环路补偿引脚,连接 RC 网络到地r8s嘉泰姆

2r8s嘉泰姆

ZCDr8s嘉泰姆

变压器次级绕组电流过零检测、LED 输出开路保护检测和线电压补偿微调引脚r8s嘉泰姆

3r8s嘉泰姆

CSr8s嘉泰姆

变压器初级绕组电流采样引脚,连接电阻到地r8s嘉泰姆

4r8s嘉泰姆

GNDr8s嘉泰姆

芯片地r8s嘉泰姆

5r8s嘉泰姆

DRVr8s嘉泰姆

外部功率管的栅极驱动引脚r8s嘉泰姆

6r8s嘉泰姆

VCCr8s嘉泰姆

芯片电源引脚r8s嘉泰姆

7r8s嘉泰姆

VHDr8s嘉泰姆

开关调光电路电源引脚,连接电容到地r8s嘉泰姆

8r8s嘉泰姆

DIMr8s嘉泰姆

开关调光控制引脚r8s嘉泰姆

六.电路原理图r8s嘉泰姆


image.pngr8s嘉泰姆

七,功能概述r8s嘉泰姆


参数r8s嘉泰姆

额定值r8s嘉泰姆

单位r8s嘉泰姆

VCC, DRV 到 GND 电压r8s嘉泰姆

-0.3~+25r8s嘉泰姆

Vr8s嘉泰姆

CS, COMP, ZCD, VHD, DIM 到 GND 电压r8s嘉泰姆

-0.3~+6r8s嘉泰姆

Vr8s嘉泰姆

VCC 引脚电源电流r8s嘉泰姆

5r8s嘉泰姆

mAr8s嘉泰姆

功率损耗r8s嘉泰姆

0.6r8s嘉泰姆

Wr8s嘉泰姆

储存环境温度r8s嘉泰姆

-50~+150r8s嘉泰姆

r8s嘉泰姆

工作结温范围r8s嘉泰姆

-40~+150r8s嘉泰姆

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ESD 水平(HBM)r8s嘉泰姆

2000r8s嘉泰姆

Vr8s嘉泰姆

ESD 水平(MM)r8s嘉泰姆

200r8s嘉泰姆

Vr8s嘉泰姆

八,相关芯片选择指南r8s嘉泰姆


LED驱动芯片>隔离不带PFCr8s嘉泰姆

产品名称r8s嘉泰姆

功率管r8s嘉泰姆

调光方式r8s嘉泰姆

封装r8s嘉泰姆

典型应用r8s嘉泰姆

最大功率r8s嘉泰姆

应用领域r8s嘉泰姆

CXLE8419r8s嘉泰姆

外置r8s嘉泰姆

三段开关r8s嘉泰姆

SOP8r8s嘉泰姆

5~36Wr8s嘉泰姆

40Wr8s嘉泰姆

LED日光灯r8s嘉泰姆

CXLE8420r8s嘉泰姆

650V/4Ωr8s嘉泰姆

不支持r8s嘉泰姆

SOP8r8s嘉泰姆

36V/300mAr8s嘉泰姆

12Wr8s嘉泰姆

LED日光灯r8s嘉泰姆

CXLE8421r8s嘉泰姆

外置r8s嘉泰姆

不支持r8s嘉泰姆

SOT23-6r8s嘉泰姆

5~36Wr8s嘉泰姆

40Wr8s嘉泰姆

LED吸顶灯r8s嘉泰姆

CXLE8422r8s嘉泰姆

650V/10Ωr8s嘉泰姆

三段开关r8s嘉泰姆

SOP8r8s嘉泰姆

23V/300mAr8s嘉泰姆

7Wr8s嘉泰姆

LED筒灯r8s嘉泰姆

CXLE8423r8s嘉泰姆

650V/10Ωr8s嘉泰姆

不支持r8s嘉泰姆

SOP8r8s嘉泰姆

23V/300mAr8s嘉泰姆

7Wr8s嘉泰姆

LED球泡灯r8s嘉泰姆

CXLE8424r8s嘉泰姆

650V/17Ωr8s嘉泰姆

不支持r8s嘉泰姆

SOP8r8s嘉泰姆

16V/300mAr8s嘉泰姆

5Wr8s嘉泰姆

LED蜡烛灯r8s嘉泰姆

CXLE8425r8s嘉泰姆

650V/23Ωr8s嘉泰姆

不支持r8s嘉泰姆

SOP8r8s嘉泰姆

10V/300mAr8s嘉泰姆

3Wr8s嘉泰姆

GU10射灯r8s嘉泰姆