HomedatasheetUC2854BN

UC2854BN Datasheet

Power Factor Correction ICs
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Description

The UC2854BN products are pin compatible enhanced versions of the UC3854. Like the UC3854, these products provide all of the functions necessary for active power factor corrected preregulators. The controller achieves near unity power factor by shaping the ac input line current waveform to correspond to the ac input line voltage. To do this the UC2854BN uses average current mode control. Average current mode control maintains stable, low distortion sinusoidal line current without the need for slope compensation, unlike peak current mode control. UC2854BN Features• Controls Boost PWM to Near-Unity Power Factor• World-Wide Operation Without Switches• Accurate Power Limiting• Fixed-Frequency Average Current-Mode Control• Integrated Current- and Voltage-Amplifier Output Clamps• Multiplier Improvements: Linearity, 500 mV VAC Offset (Eliminates External Resistor), 0 V to 5 V Multout Common-Mode Range• UVLO Options (16 V/10 V or 10.5 V/10 V) • 300-µA Start-Up Supply Current,
Features

Parameters

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Manufacturer information

ON SEMICONDUCTOR

ON Semiconductor - ON Semiconductor (Nasdaq: ON) is driving energy efficient innovations, empowering customers to reduce global energy use. The company offers a comprehensive portfolio of energy efficient power and signal management, logic, discrete and custom solutions to help design engineers solve their unique design challenges in automotive, communications, computing, consumer, industrial, LED lighting, medical, military/aerospace and power supply applications. ON Semiconductor operates a responsive, reliable, world-class supply chain and quality program, and a network of manufacturing facilities, sales offices and design centers in key markets throughout North America, Europe, and the Asia Pacific regions.

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