• [ CXLE8178 ]

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1.产品概述       2.产品特点     dG8嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）dG8嘉泰姆

5.产品封装       6.电路原理图  dG8嘉泰姆

7.相关产品dG8嘉泰姆

   产品概述 返回TOPdG8嘉泰姆

The CXLE8178 low-dropout bias supply for white LEDs is a high-performance alternative to the simple ballast resistors used in conventional white LED designs. It is optimized for low power keypad and portable backlighting applications.The CXLE8178 uses an internal resistor to set the bias current for four LEDs, which are matched to ±5%. The CXLE8178's advantages over ballast resistors include much lower bias variation with supply voltage variation, significantly lower dropout voltage, and in some applications, significantly improved efficiency.The CXLE8178 requires only a 50mV dropout voltage at a 30mA load on each output to match the LED brightness.The CXLE8178 is available in Green SOT-23-6 package. It operates over an ambient temperature range of -40℃ to +85℃.

   产品特点 返回TOPdG8嘉泰姆

• Support up to 4 LEDsdG8嘉泰姆
• Low 50mV Dropout at 30mAdG8嘉泰姆
• Less than ±5% LED Current MatchingdG8嘉泰姆
• Simple LED Brightness ControldG8嘉泰姆
• Low Shutdown CurrentdG8嘉泰姆
• 2.5V to 5.5V Supply Voltage RangedG8嘉泰姆
• Thermal Shutdown ProtectiondG8嘉泰姆
• Operating Temperature Range: -40℃ to +85℃dG8嘉泰姆
• Available in Green SOT-23-6 PackagedG8嘉泰姆

   应用范围 返回TOPdG8嘉泰姆

Wireless HandsetsdG8嘉泰姆
MP3, MP4, and PMPdG8嘉泰姆
Cellular PhonesdG8嘉泰姆
Portable Communication DevicesdG8嘉泰姆
Digital Cameras, CamcordersdG8嘉泰姆
PDAs, Palmtops, and Handy TerminalsdG8嘉泰姆
LED/Display Back Light DriverdG8嘉泰姆
LEDs for Camera FlashdG8嘉泰姆
Battery-Powered EquipmentdG8嘉泰姆

   技术规格书（产品PDF) 返回TOP dG8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！dG8嘉泰姆

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产品封装图 返回TOPdG8嘉泰姆

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电路原理图 返回TOPdG8嘉泰姆

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下一篇▶:120mA四通道电流源自动模式电荷泵高性能白光LED驱动器低漏失电流源CXLE8179每30毫安可驱动多达4个LED通过单个LED亮度控制导线接口16步亮度控制高性能的白色LED驱动程序

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