CXLE8315 are constant current LED regulators with high current accuracy which applies to single stage step-down power factor corrected LED drivers. 600V power MOSFET is integrated, which

目录Llz嘉泰姆

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

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

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

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

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

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

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

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

from the output directly, and auxiliary winding is not needed.The CXLE8315Llz嘉泰姆

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

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

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

 protection.Llz嘉泰姆

    The CXLE8315 available in SOP-8 & DIP-7 packages.
二</span>.产品特点(Features)Llz嘉泰姆

Active PFC for High power factor and low THD
·No auxiliary winding
·600V high voltage MOSFET integrated
·±3% LED output current accuracy
·Excellent line and load regulation
·Critical conduction mode
System efficiency up to 95%
·Ultra low start up & operating current
·Cycle-by-cycle current limit
·LED short protection
·LED open protection
·Over-temperature protection
三</span>,应用范围 (Applications)Llz嘉泰姆

LED lighting
四.下载产品资料PDF文档 Llz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</span>！</span>
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五</span>,产品封装图 (Package)Llz嘉泰姆

六</span>.电路原理图</span>
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七</span>,功能概述Llz嘉泰姆

Functional  DescriptionLlz嘉泰姆

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

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

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