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首页 > 产品中心 > 电源管理 > DC降压型转换器 > 大电流耐高压降压型 >CXDC6581降压式LED驱动器输入电压60V驱动3.3A负载平板显示器背光通用恒流源逐周电流限制
CXDC6581降压式LED驱动器输入电压60V驱动3.3A负载平板显示器背光通用恒流源逐周电流限制
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CXDC6581是专为降压式LED驱动器设计的单片集成电路,能够在不增加晶体管的情况下驱动1.8A-3.3A负载。输入电压范围可达60V,反馈电压为200mV。芯片的工作频率为52kHz。外部关闭功能由开/关引脚上的逻辑电平控制,然后电路进入待机模式,ISTBY~50μa(典型值)。开/关引脚可用于模拟调光。当开关管脚上的电压从0.07V增加到0.67V时,FB管脚上的电压从200mV下降到0。自保护功能包括逐周电流限制和热保护。CXDC6581有标准的TO-263、TO252和PSOP-8,带有电源板组件

CXDC6581降压式LED驱动器输入电压60V驱动3.3A负载平板显示器背光通用恒流源逐周电流限制
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                          目录g6M嘉泰姆

   1.产品概述      2.产品特点      3.应用范围     4.技术规格书下载(PDF文档)g6M嘉泰姆

   5.产品封装      6.电路原理图     7.相关产品g6M嘉泰姆

一.产品概述g6M嘉泰姆


     CXDC6581 is the monolithic IC designed for step-down LED driver capable of driving 1.8A-3.3A load without additional transistor. The input voltage range is up to 60V. Its feedback voltage, VFB, is 200mV. The chip operates at a switching frequency of 52kHz. The external shutdown function is controlled by a logic level on the ON/OFF pin and then the circuit comes into the standby mode with ISTBY~50μA (typ.). The ON/OFF pin may be used for the analog dimming. As the voltage on the ON/OFF pin is increased from 0.07V to 0.67V, the voltage on the FB pin falls from 200mV to 0. The self-protection features include a cycle-by-cycle current limit and a thermal protection. CXDC6581 is available in standard TO-263,TO252 and PSOP-8 with power pad package.  g6M嘉泰姆

二.产品特点g6M嘉泰姆


  DC/DC LED driver applicationsg6M嘉泰姆

  Backlighting for flat panel displaysg6M嘉泰姆

  General purpose constant current sourceg6M嘉泰姆

  52KHZ,no noise to Automotive-CAR audiog6M嘉泰姆

  Chargersg6M嘉泰姆

三.应用范围g6M嘉泰姆


   VIN Max = 60Vg6M嘉泰姆

  VFB = 200mV, Iq < 3mAg6M嘉泰姆

  ILED up to 3.5A with TO263-5Lg6M嘉泰姆

  ILED up to 2.1A with PSOP-8Lg6M嘉泰姆

  ILED up to 2.8A with TO-252-5Lg6M嘉泰姆

  On/Off input may be used for the Analog Dimming , low=ON  Thermal protectiong6M嘉泰姆

  Cycle-by-cycle current limit  g6M嘉泰姆

四.技术规格书(产品PDF)g6M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g6M嘉泰姆

 QQ截图20160419174301.jpgg6M嘉泰姆

五.产品封装图g6M嘉泰姆


 blob.png g6M嘉泰姆

六.电路原理图g6M嘉泰姆


blob.png   g6M嘉泰姆

七.相关芯片选择指南     更多同类产品......g6M嘉泰姆


DC/DC LED驱动
型号 详细说明
CXDC6572 2A同步整流,SOT23-5, 高效率小封装
CXDC6573A 2.2A, ACT4060/MP1410
CXDC6574 3A高效率DC-DC
CXDC6575 超低压差
CXDC6576 36V,3A替代AP1507
CXDC6577 2.5A-3A输出高频高效率高耐压替代MP2490
CXDC6578 3A DC/DC
CXDC6579 high-freq 3A DC/DC
CXDC6580 1.5A DC/DC
CXDC6581 60V高压恒压恒流,替代AP1509,AP1507,XL7005
CXDC6582 60V-30W-恒流-高精度亮度调节
CXDC6583 55V高耐压5A
CXDC6584 90V降压恒压大电流
CXDC6585 85V高耐压MOS内置
CXDC6586 高压600V的恒流LED驱动IC
CXDC6587  
CXDC6588  
CXDC6589  
CXDC6590  
CXDC6591  
CXDC6592