Error Amplifier simplifies offline power conversions.

Press Release Summary:



Offered with 5,000 VRMS isolation voltage, Model FOD2741 incorporates optocoupler, precision reference, and error amplifier into one 8-pin, white, dual-inline package. Unit provides isolated voltage feedback between secondary and primary sides of power conversion circuits for control and regulation purposes. Amplifier offers 2.5 VREF with 0.5%, 1%, and 2% tolerance options; current transfer ratio of 100% to 200%; and low temperature coefficient of 50 ppm/°C max.



Original Press Release:


Fairchild Adds New Optically Isolated Error Amplifier to Simplify Offline Power Conversion Designs


Single Component Solution Incorporates Optocoupler, Precision Reference, and Error Amplifier with 5,000 VRMS Isolation and VREF Tolerance as Low as 0.5%

San Jose, CA - October 30, 2002 - Fairchild Semiconductor (NYSE: FCS) today announces the introduction of a new Optically Isolated Error Amplifier. The FOD2741 incorporates an optocoupler, precision reference, and error amplifier into an 8-pin white, dual-inline package, making it the functional equivalent of a Fairchild KA431 shunt voltage regulator and a CNY17F-3 optocoupler in a single, space saving device. The FOD2741 features a high 5,000 VRMS isolation voltage that makes it ideal for offline power conversion applications.

The FOD2741 provides isolated voltage feedback between the secondary and primary sides of power conversion circuits for control and regulation purposes. The FOD2741 may be used in conjunction with a Fairchild Power Switch (FPS) and other Fairchild power management devices to simplify switch mode power supply and dc-dc converter designs. In addition to a 5,000 VRMS isolation voltage, the FOD2741 features a 2.5 VREF with 0.5%, 1% and 2% tolerance options, a current transfer ratio (CTR) of 100% to 200%, and a low temperature coefficient of 50 ppm/°C max. Because the FOD2741 provides a single component solution and offers a choice of reference voltage tolerances, engineers can optimize both space and performance to meet their specific power design requirements.

The FOD2741 has UL, CSA, VDE and BSI safety agency certification, and the 8-pin white, dual-inline package is available in through hole or surface mount lead configurations. Both through hole and surface mount lead configurations are available in 50-unit tube packaging. Surface mount devices are also available in tape and reel packaging with a 1,000-unit quantity on a 13-inch (330mm) diameter reel.

Price: US $0.30 each (1,000 pcs)

Availability: Immediate delivery of volume production

For more information, contact Fairchild Semiconductor's Customer Support Center at (888) 522-5372, fax (972) 910-8036.
For general information about this product go to: (http://www.fairchildsemi.com/opto).

A datasheet for the FOD2741 is available at www.fairchildsemi.com/pf/FO/FOD2741A.html.

Fairchild Semiconductor International:

Fairchild Semiconductor International (NYSE: FCS) is a leading global supplier of high performance products for multiple end markets. With a focus on developing leading edge power and interface solutions to enable the electronics of today and tomorrow, Fairchild's components are used in computing, communications, consumer, industrial and automotive applications. Fairchild's 10,000 employees design, manufacture and market power, analog & mixed signal, interface, logic, and optoelectronics products from its headquarters in South Portland, Maine, USA and numerous locations around the world. Please contact us on the web at www.fairchildsemi.com.

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