CXLE8315高电流精度的恒流单级降压功率因数校正的LED驱动器600V功率MOSFET高功率因数低THD有源PFC临界传导模式超低启动逐周电流限制

CXLE8315是具有高电流精度的恒流LED稳压器适用于单级降压功率因数校正的LED驱动器。
集成了600V功率MOSFET，大大简化了设计LED照明系统。通过采样获得高精度的输出电流
直接输出电流。临界传导模式操作降低开关损耗并大大提高效率。提供CXLE8315直接输出，不需要辅助绕组。CXL8315具有多种保护功能，大大提高了安全可靠性系统，包括VDD过电压保护、VDD UVLO、短路保护，LED开路保护，逐周电流限制和超温保护。
高功率因数低THD有源PFC
席无辅助绕组
·600V高压MOSFET集成电路
·3%LED输出电流精度
·优良的线路和负载调节
·临界传导模式
系统效率高达95%
·超低启动和运行电流
·逐周电流限制
·LED短路保护
·LED开路保护
·过温保护

目录

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                     6.电路原理图                   
7.功能概述                        8.相关产品

一,产品概述(General Description)         

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      The 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 can significantly simplify the design 

of LED lighting system.High accuracy of output current is achieved by sampling

 the output current directly. Critical conduction mode operation reduces the 

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

from the output directly, and auxiliary winding is not needed.The CXLE8315

 has multi-protection functions which largely enhance the safety and reliability

 of the system, including VDD over-voltage protection, VDD UVLO, short-circuit

 protection, LED open protection, cycle-by-cycle current limit and over-temperature

 protection.

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

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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,应用范围 (Applications)

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LED lighting
四.下载产品资料PDF文档 

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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！

 

五,产品封装图 (Package)

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六.电路原理图

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七,功能概述

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Functional  Description

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

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......

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非隔离降压LED驱动IC
型号	工作电压围	内置MOS	输出功率	输出电流	输出电 流精度	基准电压	PF值	效率	封装	备注
CXLE8311	85Vac-265Vac	500V/0.8A MOS	9W以内	最大255mA	3%	0.4V	0.5	95%	SOP-8
CXLE8312	85Vac-266Vac	500V/1A MOS	18W/28W	最大330mA	3%	0.4V	0.5	95%	SOP8/DIP8
CXLE8313	85Vac-266Vac	500V/2A MOS	36W以内	最大400mA 可调	3%	0.4V	0.5	95%	SOP8/DIP8
CXLE8314	85Vac-265Vac	500V/3A MOS	50W以内	最大490mA 可调	3%	0.4V	0.5	195%	DIP8
CXLE8315	85Vac-265Vac	600V/1.5A MOS	12W以内	可调	3%	0.2V	0.9	95%	SOP8
CXLE8316	85Vac-265Vac	600V/2.0A MOS	20W/30W以内	可调	3%	0.2V	0.9	95%	SOP8
CXLE8317	85Vac-265Vac	外置MOS	60W以内	可调	3%	0.2V	0.9	95%	SOT26
CXLE8318	85Vac-265Vac	500V/0.8A MOS	9W以内	最大255mA 可调	3%	0.4V	0.5	95%	SOP8	通过开关4/3段调光
CXLE8319	85Vac-266Vac	500V/1A MOS	18W以内	最大330mA 可调	3%	0.4V	0.5	95%	SOP8	通过开关4/3段调光
CXLE8320	85Vac-266Vac	500V/2A MOS	36W以内	最大400mA 可调	3%	0.4V	0.5	95%	SOP8/DIP7	通过开关4/3段调光