• [ CXLE8178 ]

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1.产品概述       2.产品特点     kaT嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）kaT嘉泰姆

5.产品封装       6.电路原理图  kaT嘉泰姆

7.相关产品kaT嘉泰姆

   产品概述 返回TOPkaT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TOPkaT嘉泰姆

• Support up to 4 LEDskaT嘉泰姆
• Low 50mV Dropout at 30mAkaT嘉泰姆
• Less than ±5% LED Current MatchingkaT嘉泰姆
• Simple LED Brightness ControlkaT嘉泰姆
• Low Shutdown CurrentkaT嘉泰姆
• 2.5V to 5.5V Supply Voltage RangekaT嘉泰姆
• Thermal Shutdown ProtectionkaT嘉泰姆
• Operating Temperature Range: -40℃ to +85℃kaT嘉泰姆
• Available in Green SOT-23-6 PackagekaT嘉泰姆

   应用范围 返回TOPkaT嘉泰姆

Wireless HandsetskaT嘉泰姆
MP3, MP4, and PMPkaT嘉泰姆
Cellular PhoneskaT嘉泰姆
Portable Communication DeviceskaT嘉泰姆
Digital Cameras, CamcorderskaT嘉泰姆
PDAs, Palmtops, and Handy TerminalskaT嘉泰姆
LED/Display Back Light DriverkaT嘉泰姆
LEDs for Camera FlashkaT嘉泰姆
Battery-Powered EquipmentkaT嘉泰姆

   技术规格书（产品PDF) 返回TOP kaT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！kaT嘉泰姆

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产品封装图 返回TOPkaT嘉泰姆

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电路原理图 返回TOPkaT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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