HomedatasheetUC2854DW

UC2854DW Datasheet

Power Factor Correction ICs
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Description

The UC2854DW provides active power factor correction for power systems that otherwise would draw non-sinusoidal current from sinusoidal power lines. This device implements all the control functions necessary to build a power supply capable of optimally using available power-line current while minimizing line-current distortion. To do this,the UC2854DW contains a voltage amplifier, an analog multiplier/divider,a current amplifier, and a fixed-frequency PWM. In addition, the UC2854DW contains a power MOSFET compatible gate driver, 7.5V reference,line anticipator, load-enable comparator, low-supply detector,and over-current comparator. UC2854DW Features &bull; Control Boost PWM to 0.99 Power Factor&bull; Limit Line Current Distortion To <5%&bull; World-Wide Operation Without Switches&bull; Feed-Forward Line Regulation&bull; Average Current-Mode Control&bull; Low Noise Sensitivity&bull; Low Start-Up Supply Current&bull; Fixed-Frequency PWM Drive&bull; Low-Offset Analog Multiplier/Divider&bull; 1A Totem-Pole Gate Driver&bull; Precision Voltage Reference
Features

Parameters

[{"Name":"Switching Frequency","Value":"118 kHz "},{"Name":"Maximum Operating Temperature ","Value":"+ 85 C"},{"Name":"Mounting Style ","Value":"SMD/SMT "},{"Name":"Package / Case ","Value":"SOIC-16 "},{"Name":"Packaging","Value":"Tube "}]

Manufacturer information

SEIKO INSTRUMENTS
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