1.9A Fixed Frequency White LED Driver CXAC85182 is a step-up converter designed for driving up to 8 series white LEDs for backlighting application

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The CXAC85182 is a step-up converter designed for driving up to 8 series white LEDs for backlighting application. The CXAC85182 uses current mode, 1.2MHZ fixed frequency architecture to regulate the LED current, which is set through an external current sense resistor. Its low 300mV feedback voltage reduces power loss and improves efficiency. The OV pin monitors the output voltage and turns off the converter if an over-voltage condition is present due to an open circuit condition. The CXAC85182 includes under-voltage lockout, current limiting and thermal shutdown protection preventing damage in the event of an output overload. The driver is available in small 6-pin SOT-23 package.

   产品特点 返回TOPIy1嘉泰姆

 2.5V to 5.5V operating input voltage range Iy1嘉泰姆

 Drives up to 8 series White LEDs Iy1嘉泰姆

 1.2MHz Fixed Switching Frequency Iy1嘉泰姆

 Wide range for PWM dimming (200Hz to 200KHz) Iy1嘉泰姆

 Internal 1.9A switching current limit Iy1嘉泰姆

 Over Voltage Protection (OVP) Iy1嘉泰姆

 Internal Soft-start Function Iy1嘉泰姆

 Current limit and Thermal shutdown protection Iy1嘉泰姆

 Under voltage Lockout Iy1嘉泰姆

 Available in the 6-pin SOT-23 PackageIy1嘉泰姆

   应用范围 返回TOPIy1嘉泰姆

 Camera Flash White LED Iy1嘉泰姆

 Mobile Phone, Smart Phone LED Backlight Iy1嘉泰姆

 PDA LED Backlight Iy1嘉泰姆

 Digital Still Cameras Iy1嘉泰姆

 CamcorderIy1嘉泰姆

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