• [ CXLE8949 ]

样品申请

目录

1.产品概述    2.产品特点     Suv嘉泰姆

3.应用范围    4.技术规格书下载（PDF文档）Suv嘉泰姆

5.产品封装    6.电路原理图  Suv嘉泰姆

     7.相关产品Suv嘉泰姆

产品概述                                             

返回TOP

CXLE8949 CXLE8950 is a controller for driving external NMOSFET to remove the 100/120Hz LED current Suv嘉泰姆

ripple on AC/DC power by a capacitor between removing LED  VC and GND.The adaptive technology of CXLE8950 ensures current ripple.Suv嘉泰姆

         CXLE8949 CXLE8950 clamps the input voltage on VIN pin by 30V. Only one resistor is needed when the output voltage of AC/DC power is higher than 31V.Suv嘉泰姆

      CXLE8949 CXLE8950 allows user to setup maximum LED current by the sensing resistor between theSuv嘉泰姆

source of NMOSFET and ground, which protects NMOSFET from being damaged when LED shortSuv嘉泰姆

connected or hot-plug.By sensing the drain voltage of NMOSFET via a resistor between the drain and VLMT  pin,Suv嘉泰姆

     CXLE8949 CXLE8950 allows user to setup the maximum cathode voltage of LED string, which could helpSuv嘉泰姆

limit the power dissipation on chip.It is considered that LED is shorted  when the cathode voltage of LED isSuv嘉泰姆

 higher than short connecting threshold and remains over 60us CXLE8950 shuts down NMOSFET whenSuv嘉泰姆

 LED is shorted and recovers after 13ms.Suv嘉泰姆

       CXLE8949 CXLE8950 provides over thermal protection. When the temperature of CXLE8950 exceed 135 , OTP is trigged. CXLE8950 shuts down NMOSFET until the temperature decrease to 110Suv嘉泰姆

产品特点 返回TOP

Controller for adaptive 100/120Hz current ripple remover

Built-in zener diode for input voltage clampingSuv嘉泰姆

VG output voltage high to 10VSuv嘉泰姆

Parameters Subject to Change Without NoticeSuv嘉泰姆

Programmable amplitude of LED current rippleSuv嘉泰姆

Programmable maximum cathode voltage of LEDSuv嘉泰姆

Programmable maximum LED current Short protectionSuv嘉泰姆

Over temperature protectionSuv嘉泰姆

SOT23-6 PackageSuv嘉泰姆

应用范围                                             返回TOP

LED lighting

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！Suv嘉泰姆

 Suv嘉泰姆

产品封装图                                               返回TOP

电路原理图                                               返回TOP

相关芯片选择指南                                      返回TOP

◀ 上一篇:CXLE8948驱动LED串自适应100/120Hz电流纹波消除器可编程LED电流纹波阴极电压LED管脚上的电压超过6V则电流纹波消除功能将被禁用电流内部限制在0.7A

返回顶部

下一篇▶:CXLE8950

共有条评论 用户名: 密码: 验证码: 匿名发表