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首页 > Products > Led Driver > LED flashlight IC > LED Flashlight IC >Cxle87129 is a linear constant current driver chip with built-in reference voltage source and current driver circuit. Compared with the scheme of inductor boost and charge pump boost
Cxle87129 is a linear constant current driver chip with built-in reference voltage source and current driver circuit. Compared with the scheme of inductor boost and charge pump boost

cxle87129 saves the energy storage devices such as inductor and boost capacitor, avoids the impact of switching noise on the system, greatly reduces the PCB space and simplifies the system design.
    cxle87129 has excellent load and power adjustment rate and minimal output current error. Cxle87129 can make the current of LED very stable, even on large-area light source, when the power supply and load fluctuation range are large, it can make the brightness of LED uniform, and increase the service life of LED.
   in addition to supporting a wide range of power supply voltage, the VCC pin of cxle87129 can be used as an output enabling function, which can cooperate with the digital PWM control circuit to achieve more accurate application of gray-scale current adjustment.

Cxle87129 is a linear constant current driver chip with built-in reference voltage source and current driver circuit. Compared with the scheme of inductor boost and charge pump boost
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1.产品概述       2.产品特点     puE嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)puE嘉泰姆

5.产品封装       6.电路原理图  puE嘉泰姆

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    CXLE87129是一款线性恒流驱动芯片,内建基准电压源及电流驱动电路。CXLE87129相比于电感升压和电荷泵升压的方案,省去了电感和升压电容等储能器件,避免了开关噪声对系统的影响,同时大大缩小了PCB板空间和简化了系统设计。puE嘉泰姆
  CXLE87129具有极好的负载与电源调整率及极小的输出电流误差,CXLE87129能使LED的电流非常稳定,甚至在大面积的光源上,电源及负载波动范围大时都能让LED亮度均匀一致,并增长LED使用寿命。puE嘉泰姆
  除了支援宽广电源电压范围外,CXLE87129的VCC脚可以充当输出使能功能使用,可配合数位PWM控制线路,达到更精确的灰度电流调整应用。

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单通道5mA~90mA线性恒流驱动输出固定电流设计puE嘉泰姆

无需外加电阻设定电流宽电源电压设计puE嘉泰姆

无需另外提供电源电压puE嘉泰姆

电源电压范围1.6V~5.5V,静态电流小于50uApuE嘉泰姆

Vcc脚可做PWM调光使用puE嘉泰姆

高电压应用时芯片可串接使用,负载调整率1%/VpuE嘉泰姆

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     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!puE嘉泰姆

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