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首页 > Products > Led Driver > Isolated LED Driver > Isolated No PFC >Cxle8420 is a kind of LED constant current driver chip with high precision primary side feedback and flyback. It is suitable for the isolated LED lighting system with 85vac ~ 265vac full voltage input range
Cxle8420 is a kind of LED constant current driver chip with high precision primary side feedback and flyback. It is suitable for the isolated LED lighting system with 85vac ~ 265vac full voltage input range

The cxle8420 adopts the control mode of original side feedback, through the information of original side feedback, high-precision LED constant current output can be realized, without optocoupler, secondary feedback and other circuits. At the same time, the cxle8420 became a 650V power tube. This simplifies the peripheral components, saves the cost and volume of the system, and simplifies the design of LED lighting system. Cxle8420 has become a line voltage compensation and load compensation function. The system has excellent line voltage regulation and load regulation. Cxle8420 is in quasi resonant switch mode, and the power tube is in zero current state. This effectively reduces the switching loss of the power tube, improves the system efficiency, and improves the EMI characteristics of the system.

Cxle8420 is a kind of LED constant current driver chip with high precision primary side feedback and flyback. It is suitable for the isolated LED lighting system with 85vac ~ 265vac full voltage input range
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   产品概述 返回TOPDdz嘉泰姆

CXLE8420是一款集成功率管的高精度原边反馈反激型LED恒 流驱动芯片。适合于85VAC~265VAC全电压输入范围的隔 离式LED照明系统应用。 CXLE8420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,并不需要光耦、次级反馈 等电路。同时,CXLE8420成了650V功率管。这精简了外围 元件,节约了系统的成本和体积,简化了LED照明系统的设 计。 CXLE8420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。CXLE8420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,同时也改善了系统的EMI 特性。 CXLE8420作电压范围宽,适用于85VAC~265VAC全电压 范围的交流输入。同时CXLE8420成了多种保护功能以保证 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。

   产品特点 返回TOPDdz嘉泰姆


 内部集成 650V 功率管 Ddz嘉泰姆

 原边反馈恒流控制,无需次级反馈电路 Ddz嘉泰姆

 准谐振开关模式,开关损耗小 Ddz嘉泰姆

 ±3%的 LED 输出电流精度 Ddz嘉泰姆

 优异的线电压调整率和负载调整率 Ddz嘉泰姆

 超低启动电流 Ddz嘉泰姆

 LED 输出开路保护 Ddz嘉泰姆

 LED 输出短路保护 Ddz嘉泰姆

 VCC 供电过压保护 Ddz嘉泰姆

 VCC 供电欠压保护 Ddz嘉泰姆

 自动重启动功能 Ddz嘉泰姆

 芯片过温保护 Ddz嘉泰姆

 采用 SOP7L 封装Ddz嘉泰姆

   应用范围 返回TOPDdz嘉泰姆


 LED 球泡灯,LED 射灯 Ddz嘉泰姆

 E17/E27 LED 蜡烛灯 Ddz嘉泰姆

 其它 LED 照明Ddz嘉泰姆

   技术规格书(产品PDF) 返回TOP Ddz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!Ddz嘉泰姆

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产品封装图 返回TOPDdz嘉泰姆


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电路原理图 返回TOPDdz嘉泰姆


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LED驱动芯片>隔离不带PFC
产品名称 功率管 调光方式 封装 典型应用 最大功率 应用领域
CXLE8419 外置 三段开关 SOP8 5~36W 40W LED日光灯
CXLE8420 650V/4Ω 不支持 SOP8 36V/300mA 12W LED日光灯
CXLE8421 外置 不支持 SOT23-6 5~36W 40W LED吸顶灯
CXLE8422 650V/10Ω 三段开关 SOP8 23V/300mA 7W LED筒灯
CXLE8423 650V/10Ω 不支持 SOP8 23V/300mA 7W LED球泡灯
CXLE8424 650V/17Ω 不支持 SOP8 16V/300mA 5W LED蜡烛灯
CXLE8425 650V/23Ω 不支持 SOP8 10V/300mA 3W GU10射灯