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首页 > Products > Power Management > DC/DC Step-Up Converter > DC Step-Up Converter >Cxsu6325 is a boost DC / DC converter designed to drive white LED with constant current. The device can use a lithium-ion battery to drive two, three or four LEDs in series. The method of LED
Cxsu6325 is a boost DC / DC converter designed to drive white LED with constant current. The device can use a lithium-ion battery to drive two, three or four LEDs in series. The method of LED

Cxsu6325 is a boost DC / DC converter designed to drive white LED with constant current. The device can use a lithium-ion battery to drive two, three or four LEDs in series. The method of LED series connection can provide equal LED current, so that uniform brightness can be obtained without ballast resistor. The switch frequency of the cxsu6325 is 1.2MHz, which allows the use of small external components. Since only 0.22 μ f output capacitors can be used, compared with other solutions, they occupy space and cost
All of them are saved. The 95mv low feedback voltage reduces the power consumption of the current regulation resistor to the maximum extent and improves the efficiency.

Cxsu6325 is a boost DC / DC converter designed to drive white LED with constant current. The device can use a lithium-ion battery to drive two, three or four LEDs in series. The method of LED
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                          目录qbS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)qbS嘉泰姆

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

一.产品概述qbS嘉泰姆


   CXSU6325是一种专为以恒定电流来驱动白光LED而设计的升压型DC/DC变化器。qbS嘉泰姆

该器件能利用一节锂离子电池来驱动 两个、三个或四个串联的LED。采用LED串联qbS嘉泰姆

连接的方法可以提供相等的LED电流,从而能获得均匀的亮度且无需镇流电阻器。 qbS嘉泰姆

CXSU6325的开关频率为1.2MHz,因而允许采用小巧的外部元件。由于可使用数值 qbS嘉泰姆

仅为0.22μF的输出电容器,因此,与其他 的解决方案相比,在占用空间和成本qbS嘉泰姆

上均有所节省。95mV低反馈电压最大限度地降 低了电流调节电阻器的功耗,从而qbS嘉泰姆

提高了效率。  qbS嘉泰姆

二.产品特点qbS嘉泰姆


■ 固有匹配的LED电流 qbS嘉泰姆

■ 高效率:84% (典型值) qbS嘉泰姆

■ 可由一个3.2V电源驱动多达四个LED qbS嘉泰姆

■ 快速1.2MHz开关频率 qbS嘉泰姆

■ 采用高度仅1mm的纤巧型电感器 qbS嘉泰姆

■ 只需0.22μF的输出电容器 qbS嘉泰姆

■ 内置过压保护 qbS嘉泰姆

■ 采用SOT-23-6封装qbS嘉泰姆

三.应用范围qbS嘉泰姆


■ 蜂窝电话 qbS嘉泰姆

■ PDA、手持式电脑 qbS嘉泰姆

■ MP3播放器 qbS嘉泰姆

■ 数码相机 qbS嘉泰姆

■ GPS接收机    qbS嘉泰姆

四.技术规格书(产品PDF)qbS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qbS嘉泰姆

 QQ截图20160419174301.jpgqbS嘉泰姆

五.产品封装图qbS嘉泰姆


  QQ截图20160430102344.jpgqbS嘉泰姆

六.电路原理图qbS嘉泰姆


blob.png   qbS嘉泰姆

七.相关芯片选择指南qbS嘉泰姆


系列名称 输入电压 (V) 输出电压 (V) 最大输出电流 (mA) 振荡频率 封装 特点
最小 最大 最小 标准 最大      
CXSU6324 2.5V  10V   可调     600  1.2MHZ SOT23-6 PWM异步升压恒流LED驱动:效率85%、(串联8灯或3串7并)
CXSU6325 2.5V 6V    可调     1300  1.3MHZ QFN8/SOT23-6 PWM异步升压恒流LED驱动:效率85%、(3串13并)
CXSU6326 2.5V  10   可调     300 1.2MHZ  SOT23-6 PWM异步升压恒流LED驱动:效率85%、(串联4灯)
CXSU6327 2.3 24 2.3 可调  28 1000 1.0MHZ SOT23-6 PWM异步升压恒流LED驱动:效率85%、(串联5灯)
CXSU6323 2.7 10 2.3 可调  36 200 1.2MHZ  SOT23-7 PWM异步升压恒流LED驱动:效率85%、(串联6灯)