Boost White LED Driver with PWM Brightness Control CXLE81105 boost converter contains a 0.46Ω internal switch. The IC operates at constant frequency 600 kHz, allowing the use of tiny, low cost

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The CXLE81105 boost converter contains a 0.46Ω internal switch. The IC operates at constant frequency 600 kHz, allowing the use of tiny, low cost and low height inductors and capacitors. The IC operates from a 2.7V to 7V supply voltage. High inrush current at start-up is eliminated using large compensation capacitor. Constant frequency current mode PWM architecture results in low, predictable output noise. The CXLE81105 includes cycle-by-cycle 700mA current limit to maximize inductor current and over-temperature protection circuit. The over-voltage protection will be enabled when VOUT exceeds 26V. The current of LED is set by a resistor connected between FB and GND. The CXLE81105 is available in TDFN2X2-6 package.

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„ 2.7V to 7V Input Voltage Range kch嘉泰姆

„ 600kHz Operating Frequency kch嘉泰姆

„ 26V High Output Voltage kch嘉泰姆

„ Over-Voltage Protection kch嘉泰姆

„ 5kHz to 100kHz PWM Brightness Control kch嘉泰姆

„ Built-in Cycle-by-Cycle Current Limit kch嘉泰姆

„ 0.2V Low Reference Voltage kch嘉泰姆

„ TDFN2X2-6 Packagekch嘉泰姆

   应用范围 返回TOPkch嘉泰姆

„ Cellular Phone kch嘉泰姆

„ LED Module kch嘉泰姆

„ Compact Back Light Modulekch嘉泰姆

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