White LED Driver with PWM Brightness Control in Tiny Package CXLE8144 is a boost converter that drives up to 10 White LEDs in series,With a 40-V rated integrated power switch MOSFET,

                          目录X4c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）</span>X4c嘉泰姆

   5.产品封装      6.电路原理图</strong>     7.相关产品X4c嘉泰姆

一.产品概述X4c嘉泰姆

    With a 40-V rated integrated power switch MOSFET, the CXLE8144 is a boost converter that drives up to 10 White LEDs in series. The CXLE8144 operates at 600kHz fixed switching frequency to reduce output ripple, improve conversion efficiency, and allows for the use of small external components. X4c嘉泰姆

    The default Full-Scale White LED current is set by an external sensor resistor with regulated 200mV feedback voltage, as shown in typical application. During operation, the LED current can be controlled using the Pulse Width Modulation (PWM) signal applied on the EN pin, through which the PWM Duty-Cycle determines the feedback reference voltage and then the White LED current. In PWM mode, the WD3148 does not burst the LED current; therefore, it does not generate audible noises on the ceramic output capacitor. For maximum protection, the device features integrated open LED protection that disables the CXLE8144 to prevent the output voltage from exceeding the absolute maximum ratings during open LED conditions. X4c嘉泰姆

    The CXLE8144 is available in a PCB space saving DFN 2mm x 2mm-6L Package with bottom thermal pad. Standard product is Pb-free and Halogen-free.  X4c嘉泰姆

二.产品特点X4c嘉泰姆

  2.7V~5.5V Input voltage rangeX4c嘉泰姆

  38V Open LED ProtectionX4c嘉泰姆

  200mV Reference VoltageX4c嘉泰姆

  600kHz Switching frequencyX4c嘉泰姆

  Up to 91% EfficiencyX4c嘉泰姆

  PWM Brightness ControlX4c嘉泰姆

  PWM Dimming Duty ranges from 0.3% to 100%X4c嘉泰姆

  Built-in Soft-Start and Over-Current limitX4c嘉泰姆

三.应用范围X4c嘉泰姆

  Smart PhonesX4c嘉泰姆

  TabletsX4c嘉泰姆

  Portable games    X4c嘉泰姆

四.技术规格书（产品PDF)X4c嘉泰姆

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五.产品封装图</span>X4c嘉泰姆

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六.电路原理图</strong>X4c嘉泰姆

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