Product category: Power Supply ICs and Controllers
News Release from: Fairchild Semiconductor | Subject: FOD2741
Edited by the Electronicstalk Editorial Team on 31 October 2002
Single package combines
regulator with optocoupler
A new optically isolated error amplifier incorporates an optocoupler, precision reference, and error amplifier into an 8-pin white, dual-inline package
A new optically isolated error amplifier 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.
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The FOD2741 features a high 5kV RMS 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 convertor designs.
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In addition to a 5kV RMS isolation voltage, the FOD2741 features a 2.5V reference with 0.5, 1 and 2% tolerance options, a current transfer ratio (CTR) of 100 to 200%, and a low temperature coefficient of 50ppm/C maximum.
Because the FOD2741 provides a single component solution and offers a choice of reference voltage tolerances, engineers can optimise 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 1000-unit quantity on a 330mm-diameter reel.
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