目录cWm嘉泰姆

1.产品概述                       2.产品特点cWm嘉泰姆
3.应用范围                       4.下载产品资料PDF文档 cWm嘉泰姆
5.产品封装图                     6.电路原理图                   cWm嘉泰姆
7.功能概述                        8.相关产品cWm嘉泰姆

一,产品概述(General Description)         cWm嘉泰姆

      The CXLE8315 are constant current LED regulators with high current accuracy cWm嘉泰姆

which  applies to single stage step-down power factor corrected LED drivers. cWm嘉泰姆

600V power MOSFET is integrated, which can significantly simplify the design cWm嘉泰姆

of LED lighting system.High accuracy of output current is achieved by samplingcWm嘉泰姆

 the output current directly. Critical conduction mode operation reduces the cWm嘉泰姆

switching losses and largely increases the efficiency.The CXLE8315 is supplied cWm嘉泰姆

from the output directly, and auxiliary winding is not needed.The CXLE8315cWm嘉泰姆

 has multi-protection functions which largely enhance the safety and reliabilitycWm嘉泰姆

 of the system, including VDD over-voltage protection, VDD UVLO, short-circuitcWm嘉泰姆

 protection, LED open protection, cycle-by-cycle current limit and over-temperaturecWm嘉泰姆

 protection.cWm嘉泰姆

    The CXLE8315 available in SOP-8 & DIP-7 packages.cWm嘉泰姆
二.产品特点(Features)cWm嘉泰姆

Active PFC for High power factor and low THDcWm嘉泰姆
·No auxiliary windingcWm嘉泰姆
·600V high voltage MOSFET integratedcWm嘉泰姆
·±3% LED output current accuracycWm嘉泰姆
·Excellent line and load regulationcWm嘉泰姆
·Critical conduction modecWm嘉泰姆
System efficiency up to 95%cWm嘉泰姆
·Ultra low start up & operating currentcWm嘉泰姆
·Cycle-by-cycle current limitcWm嘉泰姆
·LED short protectioncWm嘉泰姆
·LED open protectioncWm嘉泰姆
·Over-temperature protectioncWm嘉泰姆
三,应用范围 (Applications)cWm嘉泰姆

LED lightingcWm嘉泰姆
四.下载产品资料PDF文档 cWm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！cWm嘉泰姆

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五,产品封装图 (Package)cWm嘉泰姆

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六.电路原理图cWm嘉泰姆

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七,功能概述cWm嘉泰姆

Functional  DescriptioncWm嘉泰姆

          The CXLE8315 is a constant current LED regulator which applies to non-isolation step-down LEDcWm嘉泰姆

system with power factor correction. 600V power MOSFET is integrated, which can significantly simplify thecWm嘉泰姆
design of LED lighting system. CXLE8315 works in the critical conduction mode can achievecWm嘉泰姆
excellent line and load regulation, high efficiency and low BOM cost.Start Up When system turn on, the capacitor connected to VDD pin is charged up, while the VDD up to threshold voltage,cWm嘉泰姆
the internal circuits start working. The COMP pin voltage is pulled up to 1.5V quickly, then the system startscWm嘉泰姆
switching. The system works at 10kHz frequency at the beginning, the COMP voltage rises up gradually, andcWm嘉泰姆
the inductor peak current also rises up. The LED current hence achieves a soft start without overshoot. After the output voltage is built up, the VCC power is supplied by the output voltage through a diode to save thecWm嘉泰姆
consumption of the system.cWm嘉泰姆
八,相关产品                       更多同类产品......cWm嘉泰姆

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