CXDC6581

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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产品简介

                          目录0VJ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)0VJ嘉泰姆

   5.产品封装      6.电路原理图     7.相关产品0VJ嘉泰姆

一.产品概述0VJ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.  0VJ嘉泰姆

二.产品特点0VJ嘉泰姆


  DC/DC LED driver applications0VJ嘉泰姆

  Backlighting for flat panel displays0VJ嘉泰姆

  General purpose constant current source0VJ嘉泰姆

  52KHZ,no noise to Automotive-CAR audio0VJ嘉泰姆

  Chargers0VJ嘉泰姆

三.应用范围0VJ嘉泰姆


   VIN Max = 60V0VJ嘉泰姆

  VFB = 200mV, Iq < 3mA0VJ嘉泰姆

  ILED up to 3.5A with TO263-5L0VJ嘉泰姆

  ILED up to 2.1A with PSOP-8L0VJ嘉泰姆

  ILED up to 2.8A with TO-252-5L0VJ嘉泰姆

  On/Off input may be used for the Analog Dimming , low=ON  Thermal protection0VJ嘉泰姆

  Cycle-by-cycle current limit  0VJ嘉泰姆

四.技术规格书(产品PDF)0VJ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0VJ嘉泰姆

 QQ截图20160419174301.jpg0VJ嘉泰姆

五.产品封装图0VJ嘉泰姆


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六.电路原理图0VJ嘉泰姆


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七.相关芯片选择指南     更多同类产品......0VJ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  

◀ 上一篇:37V输入电压CXDC6580单片控制电路DC-DC转换器内部温度补偿基准比较器带有源限流电路的控制占空比振荡器驱动器和大电流输出开关

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下一篇▶:1A输出电流线性脉宽调制调光能力1MHz的开关频率CXDC6582恒流LED驱动器入电压7V至60V连续传导模式电感降压转换器