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href="http://bbs.oecr.com/forum.php?mod=viewthread&tid=255169&extra=&ordertype=2" class="show">正序浏览</a> <span class="pipe show">|</span><a href="javascript:;" onclick="readmode($('thread_subject').innerHTML, 1052452);" class="show">阅读模式</a> </div> </div> </div><div class="pct"><style type="text/css">.pcb{margin-right:0}</style><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_1052452"> DC/DC升压恒流LED驱动IC, XL6001 XL6003 XL6004 XL6005 XL6006<br /> <br /> <br /> XL6003是一颗突破传统<a href="http://electronic.oecr.com" target="_blank" class="relatedlink">电路</a>拓扑结构,结合HVBCD<a href="http://optics.oecr.com" target="_blank" class="relatedlink">工艺</a>,大电流,高压DC/DC升压恒流LED驱动IC,<br /> (1)它具有较宽的直流3.6V到36V输入电压范围(低压可以兼顾锂电供电)<br /> (2)最高升压可到42V,可驱动串联12颗1W LED(同比其它品牌多驱动4~5颗LED)<br /> (3)大电流1050mA持续电流输出,可驱动1W LED12串3并或3W LED12串<br /> (4)EN脚可实现PWM调光,且自带软启动功能<br /> (5)低至0.2V参考电压,可以有效提高系统效率<br /> (6)输出42V过压保护功能<br /> (7)内置过热保护功能<br /> 优势<br /> 宽电压输入，大电流输出，外围电路简单。XL6003应用简单,普通DC/DC升压拓扑结构,效率高达92%,适用于基于LED的汽车、路灯、 <a href="http://solar.oecr.com" target="_blank" class="relatedlink">太阳能</a>灯及LED背光驱动的应用.<br /> 1. 传统的大功率LED路灯电源，大部分是用220V AC~DC后面再用LM358或者三极管来做恒流，此电路恒流<br /> 精度低，并且过温，短路等保护功能没有，输出的可变性不强<br /> 2.XL6003只要前面有标配的AC~DC的电源，24V/12V，XL6003最高有40W的输出功率，<br /> 80W路灯用2个XL6003电路，120W路灯用3个XL6003电路，200W路灯用5个XL6003电路。<br /> 3.XL6003最高可以12个LED灯串联，市场其它最高输出只能够8个LED灯串联。<br /> 4. 还可以用在太阳能灯，汽车尾灯，LED白光阵列，大功率手电筒灯，LED背光驱动<br /> VIN=5V 最大可以点亮 8颗1W LED。 VIN=6V 最大可以点亮 9颗1W LED。<br /> VIN=7V 最大可以点亮 11颗1W LED。 VIN>=8V 最大可以点亮12颗1W LED。<br /> <br /> LED太阳能路灯恒流驱动方案:XL6003 XL6004<br /> <br /> XL6006 演示板 <br /> 介绍 <br /> 此演示板用来演示升压高效率驱动 LED全集成开关型变换器 XL6006。 此设计是在直流<br /> 输入电压为 5V-32V时，最大输出电压可达 60V的 LED驱动；最大开关电流 5A，系统转换<br /> 效率最高可到 90%以上；XL6006 采用 60V 高压制造工艺，内部集成高压功率 MOSFET 开<br /> 关管，具有转换效率高，系统元件少，可靠性高，安全性高等优点。 <br /> 演示板可以演示 XL6006 的若干特性，包括改变 RCS 阻值来实现对于系统恒流控制，<br /> 使用 EN引脚进行系统的开关控制。<br /> <br /> 降压型高效率LED恒流驱动芯片XL8001 XL8002 XL8003 XL8004<br /> XL8002 演示板 <br /> 介绍 <br /> 此演示板用来演示降压直流驱动 LED 系列 XL8002 控制器。此设计是在输入电压为<br /> C12V-DC80V 时；输出可直接串联 1-18 颗 1W LED 管芯结合，系统转换效率高，系统外<br /> 围器件少，应用简单，系统体积小等特点。 <br /> 演示板可以演示 XL8002 的若干特性，包括改变 RCS 阻值来实现对于系统恒流控制，<br /> 过温保护， 输出短路保护； 输出恒流精度在全电压范围 (DC12V~DC80V) 控制在+-5%以内。 <br /> XL8002 降压型1~18 颗LED串联恒流驱动器芯片(高电压型)<br /> 1、最高输出电流：1.0A；<br /> 2、最高输入电压：XL8002为12~80V<br /> 3、输出电压：支持1~18 颗LED串联使用；<br /> 4、输出电流：Adj (0.1V) <br /> 5、振动频率：PFM；<br /> 6、转换效率：80%～95%（不同电压输出时的效率不同）；<br /> 7、封装形式：TO263-5L;<br /> 8、控制方式：PWM； <br /> 9、工作温度范围：-40℃ ～ +125℃<br /> 10、工作模式：低功耗/正常两种模式可外部控制；<br /> 11、工作模式控制：TTL电平兼容；<br /> 12、所需外部元件：只需极少的外围器件便可构成高效稳压电路；外围元件少，低纹波。<br /> 13、器件保护：热关断及电流限,输出短路保护功能；输入电源开关噪声抑制功能；Enanle开关信号的迟滞功能；<br /> 技术特点(广泛使用于LED 电源驱动 应用程序<a href="http://light.oecr.com" target="_blank" class="relatedlink">发光</a>二极管<a href="http://light.oecr.com" target="_blank" class="relatedlink">照明</a>灯具通用照明 )<br /> （1）用于LED 全集成方案，系统成本低，可靠性高；<br /> （2）系统结构简单，设计方便灵活，可以达到很高的效率；<br /> （3）由于大功率开关管内置，功率管的电压，电流，温度都受控；同时，芯片内置软启动电路、环路频率补偿电容、内部固定频率、全内置过压保护、过流保护、过热保护等电路，芯片的可靠性，安全性大大提高<br /> 深圳市诚信联新科技有限公司<br /> 地址：深圳市龙华新区龙华镇龙观东路金龙华广场金龙阁1908<br /> 联系人：古小姐<br /> 电话：0755-86091963 13249827170 <br /> 传真：0755-82725693<br /> Q？：1139196806 1262314675<br /> 贸易通：jjera / vmxnl<br /> </td></tr></table> <div class="ptg mbm mtn"> <a title="led" href="misc.php?mod=tag&id=54" target="_blank">led</a>, <a title="降压" href="misc.php?mod=tag&id=4958" target="_blank">降压</a>, <a title="上海" href="misc.php?mod=tag&id=16" target="_blank">上海</a>, <a title="驱动电源" href="misc.php?mod=tag&id=1630" target="_blank">驱动电源</a></div> </div> <div id="comment_1052452" class="cm"> </div> <div id="post_rate_div_1052452"></div> </div> </div> </td></tr> <tr><td class="plc plm"> <div id="p_btn" class="mtw mbm hm cl"> <a href="http://club.oecr.com/home.php?mod=spacecp&ac=favorite&type=thread&id=255169&formhash=6d4c8e49" id="k_favorite" onclick="showWindow(this.id, this.href, 'get', 0);" onmouseover="this.title = 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