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首页 > Products > Led Driver > LED Backlight > White Light Backlight Driver >CXLE8168 PWM和Analog两种调光宽输入升降压白光LED驱动器宽输入电压范围为驱动白光LED设计的恒流升压转换器6~25V输入电源可编程的软启动
CXLE8168 PWM和Analog两种调光宽输入升降压白光LED驱动器宽输入电压范围为驱动白光LED设计的恒流升压转换器6~25V输入电源可编程的软启动

CXLE8168是一款具有宽输入电压范围、专为驱动白光LED设计的恒流升压转换器。凭借其特殊的拓扑结构,芯片提供的负载电压既可以高于输入电压,又可以低于输入电压。芯片可以同时对多路串、并联的LED提供精准的电流调制。CXLE8168具有Analog/PWM两种模式的亮度调节功能,只需要在CTRL引脚加入Analog/PWM信号即可对LED亮度进行控制。芯片的工作频率高达1MHz,结合以脉宽调制(PWM)的工作模式,在保证最小输入纹波的情况下允许用户使用较小的输入/输出电容和电感。可编程的软启动能够消除芯片启动时的浪涌电流。

CXLE8168 PWM和Analog两种调光宽输入升降压白光LED驱动器宽输入电压范围为驱动白光LED设计的恒流升压转换器6~25V输入电源可编程的软启动
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1.产品概述       2.产品特点     MLu嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)MLu嘉泰姆

5.产品封装       6.电路原理图  MLu嘉泰姆

7.相关产品MLu嘉泰姆

   产品概述 返回TOPMLu嘉泰姆


      CXLE8168是一款具有宽输入电压范围、专为驱动白光LED设计的恒流升压转换器。凭借其特殊的拓扑结构,芯片提供的负载电压既可以高于输入电压,又可以低于输入电压。芯片可以同时对多路串、并联的LED提供精准的电流调制。CXLE8168具有Analog/PWM两种模式的亮度调节功能,只需要在CTRL引脚加入Analog/PWM信号即可对LED亮度进行控制。芯片的工作频率高达1MHz,结合以脉宽调制(PWM)的工作模式,在保证最小输入纹波的情况下允许用户使用较小的输入/输出电容和电感。可编程的软启动能够消除芯片启动时的浪涌电流。CXLE8168采用8-pin 3mmx3mm TDFN封装。The CXLE8168 is a constant current boost converter specially designed for driving white LEDs with wide input range. The unique converter topology provide a load voltage which can be greater or less than the input voltage. With the tightly regulated load current, the CXLE8168 allows series connection with multiple strings of the white LEDs. The brightness of the LEDs can be adjusted through a voltage level on the CTRL pin or by applying a PWM signal to CTRL pin. 1MHz current-mode, pulse-width modulated (PWM) operation allows for small input and output capacitors and a small inductor while minimizing ripple on the input supply/battery. Programmable soft-start eliminates inrush current during startup. The CXLE8168is available in a space-saving, 8-pin 3mm x 3mm TDFN package.

   产品特点 返回TOPMLu嘉泰姆


• 6~25V输入电源电压MLu嘉泰姆

• 32V过压保护MLu嘉泰姆

• 效率高达90%MLu嘉泰姆

• PWM和Analog两种调光方式MLu嘉泰姆

• 高压功率管内置MLu嘉泰姆

• 1MHz开关频率MLu嘉泰姆

• 小尺寸外围电感、电容MLu嘉泰姆

• 3mm × 3mm TDFN8封装MLu嘉泰姆

• 符合RoHS规范及Pb-FreeMLu嘉泰姆

 6V to 25V Input RangeMLu嘉泰姆

 32V (typ.) Output with Overvoltage ProtectionMLu嘉泰姆

 Up to 90% EfficiencyMLu嘉泰姆

 Flexible Analog or PWM Dimming ControlMLu嘉泰姆

 Internal High Power MOSFET SwitchMLu嘉泰姆

 1MHz PWM OperationMLu嘉泰姆

 Small, Low-Profile Inductors and CapacitorsMLu嘉泰姆

 3mm× 3mm TDFN-8 PackageMLu嘉泰姆

 RoHS Compliant and 100% Lead (Pb)-FreeMLu嘉泰姆

   应用范围 返回TOPMLu嘉泰姆


• 7~10吋白光LED背光显示驱动MLu嘉泰姆

• 12V汽车显示系统MLu嘉泰姆

• PDVD和微型笔记MLu嘉泰姆

• LED照明设备MLu嘉泰姆

 7~10 inch White LED Display BacklightingMLu嘉泰姆

 12V Automotive Display SystemMLu嘉泰姆

 PDVD and SubnotebooksMLu嘉泰姆

 LED LightingMLu嘉泰姆

   技术规格书(产品PDF) 返回TOP MLu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!MLu嘉泰姆

 QQ截图20160419174301.jpgMLu嘉泰姆

产品封装图 返回TOPMLu嘉泰姆


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电路原理图 返回TOPMLu嘉泰姆


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