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首页 > Products > Led Driver > Non isolated LED Driver >  Non Isolation No PFC >Cxle83156a cxle83156b cxle83156c is a high-precision LED constant current control chip which works in zero current on and peak current off critical conduction mode non isolated step-down LED
Cxle83156a cxle83156b cxle83156c is a high-precision LED constant current control chip which works in zero current on and peak current off critical conduction mode non isolated step-down LED

The critical conduction mode ensures that the cxle83156a cxle83156b cxle83156c can control the power switch to open when the inductance current is zero, reduces the switching loss of the power tube, and ensures that the system has a peak efficiency of more than 95%. The critical conduction mode with zero inductance current Valley ensures the high precision of output LED current, and has good linear regulation and load regulation. It is not sensitive to the change of inductance. I-type inductance can be used. The chip is integrated with high-voltage power MOS tube, which uses JFET to supply power without starting resistance. The peripheral circuit is simple and the system cost is low. Cxle83156a cxle83156b cxle83156c has wide working voltage, which is suitable for full range AC input voltage or 60V - 400V DC voltage input

Cxle83156a cxle83156b cxle83156c is a high-precision LED constant current control chip which works in zero current on and peak current off critical conduction mode non isolated step-down LED
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1.产品概述       2.产品特点     sjX嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)sjX嘉泰姆

5.产品封装       6.电路原理图  sjX嘉泰姆

7.相关产品sjX嘉泰姆

   产品概述 返回TOPsjX嘉泰姆


            CXLE83156A CXLE83156B CXLE83156C是一款工作于零电流导通,峰值电流关断 的临界导通模式(CRM,Critical Conduction Mode) 高精度LED恒流控制芯片,主要应用于非隔离降压 型LED电源系统。 临界导通模式确保了CXLE83156A CXLE83156B CXLE83156C可以控制功率开关 在电感电流为零时刻开启,减小了功率管的开关损 耗,确保了系统具有95%以上的峰值效率。电感电 流谷值为零的临界导通模式确保了输出LED电流 的高精度,并且具有良好的线性调整率和负载调整 率。对电感量变化不敏感,可以使用工字电感。 芯片内部集成高压功率MOS管,使用JFET供电, 无需启动电阻,外围电路简单,系统成本低。 CXLE83156A CXLE83156B CXLE83156C工作电压宽,适合全范围交流输入电压或 是60V - 400V直流电压输入。CXLE83156A CXLE83156B CXLE83156C时实现了 各种保护功能,包括逐周期过流保护(OCP)、LED 短路保护(SCP)和芯片温度过热调节功能等,以确 保系统可靠地工作。

   产品特点 返回TOPsjX嘉泰姆


 临界导通模式,对电感不敏感 sjX嘉泰姆

 最高95%以上的峰值效率 sjX嘉泰姆

 高精度LED恒流电流 sjX嘉泰姆

 逐周期峰值电流控制 sjX嘉泰姆

 LED短路保护 sjX嘉泰姆

 前沿消隐控制 sjX嘉泰姆

 欠压锁定保护(UVLO) sjX嘉泰姆

 过热调节功能 sjX嘉泰姆

 TO-92封装sjX嘉泰姆

   应用范围 返回TOPsjX嘉泰姆


 LED球泡灯,日光灯,信号灯,景观灯等 sjX嘉泰姆

 LED舞台灯,蜡烛灯,玉米灯等 sjX嘉泰姆

 其他LED驱动应用及通用恒流源sjX嘉泰姆

   技术规格书(产品PDF) 返回TOP sjX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!sjX嘉泰姆

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产品封装图 返回TOPsjX嘉泰姆


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电路原理图 返回TOPsjX嘉泰姆


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