High Efficiency, Constant Current, Boost DC/DC White-LEDs Drive CXLE81104 boost converter contains a 0.7Ω internal switch. The IC operates at constant frequency 1MHz, allowing the use of tiny,

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The CXLE81104 boost converter contains a 0.7Ω internal switch. The IC operates at constant frequency 1MHz, allowing the use of tiny, low cost and low height inductors and capacitors. The IC operates from a 2.7V to 5.5V supply voltage. High inrush current at start-up is eliminated using the soft-start function. Constant frequency current mode PWM architecture results in low, predictable output noise. The CXLE81104 includes cycle-by-cycle 850mA current limiting to maximum inductor current and over-temperature protection circuit. The over-voltage protection will be enabled when VOUT exceeds 28V. The current of LED is set by a resistor connected between FB and GND. The CXLE81104 is available in SOT-23-6 & TDFN2X2-8 package.

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Operating Voltage：2.7V to 5.5V KSq嘉泰姆

„ High Operating Frequency：1MHz KSq嘉泰姆

„ High Output Voltage：28V KSq嘉泰姆

„ Shutdown Current：<1μA KSq嘉泰姆

„ Over-Voltage Protection KSq嘉泰姆

„ Digital Dimming Control KSq嘉泰姆

„ Built-in Cycle-by-Cycle Current-Limiting KSq嘉泰姆

„ Soft-Start Function KSq嘉泰姆

„ 0.2V Low Reference Voltage KSq嘉泰姆

„ SOT-23-6 & TDFN2X2-8 PackageKSq嘉泰姆

   应用范围 返回TOPKSq嘉泰姆

„ LED Module KSq嘉泰姆

„ Compact Back Light Module KSq嘉泰姆

„ Constant Current SourceKSq嘉泰姆

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