HomedatasheetUC3854N

UC3854N Datasheet

Power Factor Correction - PFC
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Description

The UC3854N 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 UC3854N contains a voltage amplifier, an analog multiplier/divider,a current amplifier, and a fixed-frequency PWM. In addition, the UC3854N contains a power MOSFET compatible gate driver, 7.5V reference,line anticipator, load-enable comparator, low-supply detector,and over-current comparator. UC3854N 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":"+ 70 C "},{"Name":"Mounting Style","Value":"Through Hole "},{"Name":"Package / Case","Value":"PDIP-16 "},{"Name":"Packaging","Value":"Tube "},{"Name":"Minimum Operating Temperature","Value":"0 C "}]

Manufacturer information

DIODES INCORPORATED

Diodes Incorporated is a leading global manufacturer and supplier of high-quality, application-specific, standard products within the broad discrete, logic and analog semiconductor markets. Diodes Incorporated primarily serves the computing, consumer, communications, industrial and automotive segments. Diodes’ diverse product portfolio includes parts for LCD/LED TVs and displays, desktop, notebook and tablet computing, smartphones and hand-held devices, set-top boxes, power supplies and USB protection as well as many other application areas.

Diodes Incorporated offers a wide array of products including diodes, rectifiers, transistors, MOSFETs, gate drivers, protection devices, function-specific arrays, amplifiers and comparators, Hall-effect sensors and temperature sensors, power management devices including LED drivers, AC-DC converters and controllers, DC-DC switching regulators, linear voltage regulators, current monitors, and voltage reference and shunt regulators, along with special function devices including USB power switches, load switch devices, voltage supervisors and motor controllers.


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