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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 >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
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
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CXDC6582是一种连续传导模式电感降压转换器,设计用于从高于LED链总电压的电压源高效驱动单或多个串联LED。该装置由7V至60V之间的输入电源工作,并提供高达1A的外部可调输出电流。根据电源电压和外部组件的不同,CXDC6582可提供最大30瓦的输出功率。
CXDC6582包括电源开关和高压侧输出电流感应电路,该电路使用外部电阻器设置标称平均输出电流,并且专用的调光输入接受直流电压或宽范围的脉冲调光。向仪表板集成模块引脚施加0.3V或更低的电压,关闭输出并将设备切换到低电流待机状态。

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
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产品简介

                          目录r0M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)r0M嘉泰姆

   5.产品封装      6.电路原理图     7.相关产品r0M嘉泰姆

一.产品概述r0M嘉泰姆


    The CXDC6582 is a continuous conduction mode inductive step-down converter, designed for driving single or multiple series connected LED efficiently from a voltage source higher than the total LED chain voltage. r0M嘉泰姆

    The device operates from an input supply between 7V and 60V and provides an externally adjustable output current of up to 1A. Depending upon the supply voltage and external components, the CXDC6582 can provide max. 30 watts of output power. r0M嘉泰姆

    The CXDC6582 includes the power switch and a high-side output current sensing circuit, which uses an external resistor to set the nominal average output current, and a dedicated DIM input accepts either a DC voltage or a wide range of pulsed dimming. Applying a voltage of 0.3V or lower to the DIM pin turns the output off and switches the device into a low current standby state. r0M嘉泰姆

   The CXDC6582 is available in PSOP-8 (ESOP8) with power pad packages. r0M嘉泰姆

二.产品特点r0M嘉泰姆


  Low components countr0M嘉泰姆

  Wide input voltage range: 7V to 60Vr0M嘉泰姆

  Up to 1A output currentr0M嘉泰姆

  Linear and PWM dimming capabilityr0M嘉泰姆

  Up to 1MHz switching frequencyr0M嘉泰姆

  Typical 5% output current accuracyr0M嘉泰姆

  Open/short circuit LED protectionr0M嘉泰姆

  High efficiency (up to 97%)r0M嘉泰姆

  High-Side Current Senser0M嘉泰姆

  Hysteretic Control: No Compensationr0M嘉泰姆

  Constant current LED driverr0M嘉泰姆

三.应用范围r0M嘉泰姆


  DC/DC LED driver applicationsr0M嘉泰姆

  Automotive lightingr0M嘉泰姆

  General purpose constant current sourcer0M嘉泰姆

  LED back-up lightingr0M嘉泰姆

  SELV lightingr0M嘉泰姆

  Backlighting for flat panel displays    r0M嘉泰姆

四.技术规格书(产品PDF)r0M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r0M嘉泰姆

 QQ截图20160419174301.jpgr0M嘉泰姆

五.产品封装图r0M嘉泰姆


 blob.pngr0M嘉泰姆

   出色的调光特性,非常高的效率,宽电压输入,简洁的外围电路。 CXDC6582 专为 LED 背光---车灯---LED 照明的各种恒流应用打造。 r0M嘉泰姆

六.电路原理图r0M嘉泰姆


blob.png r0M嘉泰姆

    The CXDC6582 allow dimming with a PWM signal at the DIM input. A logic level below 0.3V at DIM forces to turn off the LED and the logic level at DIM must be at least 2.5V to turn on the full LED current. The frequency of PWM dimming ranges from 100Hz to more than 20 kHz. The DC voltage is valid from 0.5V to 2.5V. When the dc voltage is higher than 2.5V, the output current keeps constant. Constant LED current : I=100mV/Rs  r0M嘉泰姆

七.相关芯片选择指南       更多同类产品......r0M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