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FOD2711AS Datasheet(PDF) 1 Page - Fairchild Semiconductor |
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FOD2711AS Datasheet(HTML) 1 Page - Fairchild Semiconductor |
1 / 15 page ©2003 Fairchild Semiconductor Corporation www.fairchildsemi.com FOD2711 Rev. 1.0.1 August 2008 FOD2711 Optically Isolated Error Amplifier Features ■ Optocoupler, precision reference and error amplifier in single package ■ 1.240V ± 1% reference ■ CTR 100% to 200% ■ 5,000V RMS isolation ■ UL approval E90700, Volume 2 CSA approval 1296837 VDE approval 40002463 BSI approval 8702, 8703 Applications ■ Power supplies regulation ■ DC to DC converters Description The FOD2711 Optically Isolated Amplifier consists of the popular RC431A precision programmable shunt refer- ence and an optocoupler. The optocoupler is a gallium arsenide (GaAs) light emitting diode optically coupled to a silicon phototransistor. The reference voltage toler- ance is 1%. The current transfer ratio (CTR) ranges from 100% to 200%. It is primarily intended for use as the error amplifier/ reference voltage/optocoupler function in isolated AC to DC power supplies and dc/dc converters. When using the FOD2711, power supply designers can reduce the component count and save space in tightly packaged designs. The tight tolerance reference elimi- nates the need for adjustments in many applications. The device comes in a 8-pin dip white package. Functional Bock Diagram Package Outlines 8 8 1 8 1 1 1 2 3 4 5 6 7 8 LED FB COMP GND NC C E NC |
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