CXLE8156

CXLE8156是一种高效率的电荷泵白光LED驱动器;该设备驱动多达四个白光LED,具有恒定的调节电流,以获得均匀的亮度。电源电压范围从2.7伏到5.5伏,是锂离子电池应用的最佳选择。CXLE8156在1x、1.5x和2x电荷泵模式下工作,并根据输入电压自动切换电荷泵模式,以保持高功率效率所需的功率。CXLE8156为每个LED提供高达30毫安的电流,总电流为120毫安,并允许多种方法,例如在CTRL0引脚上提供用于LED调光的脉宽调制信号。三个控制逻辑管脚允许禁用或启用LED组合。在2x模式下,电源电流仅为2mA,EN引脚允许设备以2mA静态电流进入关机模式。CXLE8156开关频率为1MHz,只需要四个1mF陶瓷电容器和一个电阻器,确保低输入电流纹波和EMI

CXLE8156高效率的电荷泵白光LED驱动器设备驱动多达四个白光LED恒定的调节电流以获得均匀的亮度低输入纹波和电磁干扰软启动限制浪涌电流

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1.产品概述       2.产品特点     R1S嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)R1S嘉泰姆

5.产品封装       6.电路原理图  R1S嘉泰姆

7.相关产品R1S嘉泰姆

   产品概述 返回TOPR1S嘉泰姆


The CXLE8156 is a high efficiency charge pump white LED driver; the device drives up to four white LEDs with regulated constant current for uniform intensity. The supply voltage ranges from 2.7V to 5.5V and it is optimized for a Li-ion battery application. The CXLE8156 operates in 1x, 1.5x, and 2x charge pump modes and automatically switches the charge pump modes depend on the input voltage to maintain the required power for high power efficiency. The CXLE8156 provides up to 30mA per LED, for a total of 120mA and allows several methods such as a PWM signal on the CTRL0 pin for LED dimming. Three control logic pins allow to disable or enable a combination of LEDs. The supply current is only 2mA in 2x mode, and the EN pin allows the device to enter shutdown mode with 2mA quiescent current. The CXLE8156 switches at 1MHz frequency and only requires four 1mF ceramic capacitors and one resistor, and ensures low input current ripple and EMI. The CXLE8156 is available in a 16-pin QFN package

   产品特点 返回TOPR1S嘉泰姆


· ±1.5% LED Current Matching R1S嘉泰姆

· High Efficiency Up to 90% Over Li-ion Battery Discharge R1S嘉泰姆

· Output Current Up to 30mA Per LED R1S嘉泰姆

· 2.7V to 5.5V Operating Voltage R1S嘉泰姆

· Allow to Turn On or Off a Combination of LEDs R1S嘉泰姆

· 1x/1.5x/2x Charge Pump Modes R1S嘉泰姆

· Low Shutdown Current: 2mA Maximum R1S嘉泰姆

· Low Input Ripple and EMI R1S嘉泰姆

· Internal Soft-Start Limits Inrush Current R1S嘉泰姆

· Short Circuit Current Limit R1S嘉泰姆

· Thermal Shutdown Protection R1S嘉泰姆

· Output Over-Voltage Protection R1S嘉泰姆

· 16-Pin QFN Package R1S嘉泰姆

· Lead Free and Green Devices Available (RoHS Compliant)R1S嘉泰姆

   应用范围 返回TOPR1S嘉泰姆


· Cellular Phone White LED Back Light R1S嘉泰姆

· Portable Device R1S嘉泰姆

· PDA, Handheld Computer R1S嘉泰姆

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   技术规格书(产品PDF) 返回TOP R1S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R1S嘉泰姆

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产品封装图 返回TOPR1S嘉泰姆


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电路原理图 返回TOPR1S嘉泰姆

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