Product category: Power Supply ICs and Controllers
News Release from: Fairchild Semiconductor | Subject: FAN4822
Edited by the Electronicstalk Editorial Team on 8 March 2002
PFC controller chip cuts noise as well
The latest power factor correction controller IC from Fairchild Semiconductor is designed for use in supplies of 500W or more
The FAN4822 is an average-current boost-type device employing zero-voltage switching (ZVS) control circuitry designed for efficient operation at high switching frequencies. The continuous boost architecture allows designs to achieve the high power factor (up to 98%) and the low total harmonic distortion (THD) necessary to comply with "green" initiatives, such as the IEC 1000-3-2 standard for energy efficiency and noise reduction in consumer electronics.
This article was originally published on Electronicstalk on 8 March 2002 at 8.00am (UK)
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The built-in ZVS circuitry allows designers to use smaller, lower cost components to save board space while reducing switching losses and noise caused by electromagnetic interference.
Fairchild's broad portfolio of PFC and PFC/PWM combo chips for medium and high-power supplies is recognised as the market leader in solutions for power factor correction.
The FAN4822 offers exceptional performance and strengthens Fairchild's position in high-power applications, such as servers, routers, power supplies and telecomms switching equipment.
Safety features on the FAN4822 include undervoltage lockout, overvoltage protection (to eliminate output "runaway" due to load removal), peak-current limiting, and input-voltage brownout protection.
The FAN4822 is rated for operation over the -40 to +85C temperature range, and is available now in 14-lead plastic DIP and wide-body 16-lead SOIC packages.
Pricing starts at $3.21 in 1000-off quantities.
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