• [ CXLE8315 ]"

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目录Umu嘉泰姆

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

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

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

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

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

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

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

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

from the output directly, and auxiliary winding is not needed.The CXLE8315Umu嘉泰姆

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

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

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

 protection.Umu嘉泰姆

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

Active PFC for High power factor and low THDUmu嘉泰姆
·No auxiliary windingUmu嘉泰姆
·600V high voltage MOSFET integratedUmu嘉泰姆
·±3% LED output current accuracyUmu嘉泰姆
·Excellent line and load regulationUmu嘉泰姆
·Critical conduction modeUmu嘉泰姆
System efficiency up to 95%Umu嘉泰姆
·Ultra low start up & operating currentUmu嘉泰姆
·Cycle-by-cycle current limitUmu嘉泰姆
·LED short protectionUmu嘉泰姆
·LED open protectionUmu嘉泰姆
·Over-temperature protectionUmu嘉泰姆
三,应用范围 (Applications)Umu嘉泰姆

LED lightingUmu嘉泰姆
四.下载产品资料PDF文档 Umu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！Umu嘉泰姆

 Umu嘉泰姆

五,产品封装图 (Package)Umu嘉泰姆

Umu嘉泰姆
六.电路原理图Umu嘉泰姆

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七,功能概述Umu嘉泰姆

Functional  DescriptionUmu嘉泰姆

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

system with power factor correction. 600V power MOSFET is integrated, which can significantly simplify theUmu嘉泰姆
design of LED lighting system. CXLE8315 works in the critical conduction mode can achieveUmu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,Umu嘉泰姆
the internal circuits start working. The COMP pin voltage is pulled up to 1.5V quickly, then the system startsUmu嘉泰姆
switching. The system works at 10kHz frequency at the beginning, the COMP voltage rises up gradually, andUmu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 theUmu嘉泰姆
consumption of the system.Umu嘉泰姆
八,相关产品                       更多同类产品......Umu嘉泰姆

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