Fairchild Semiconductor's FOD2712 optically isolated error amplifier combines an error amplifier, reference voltage and optocoupler in an 8-pin small outline package for use in isolated AC-DC power supplies and DC-DC converters. This allows power supply designers to reduce the component count and save space in tightly packaged designs. The optocoupler is a gallium arsenide (GaAs) light-emitting diode optically coupled to a silicon phototransistor, and provides 25 000 V r.m.s. isolation. The reference voltage is 1,24 V with a ±1% tolerance, the current transfer ratio (CTR) range is 100 to 200%, and the operating temperature range is -40 to +85°C. The FOD2712 comes in an 8-pin small outline package and has CSA and UL safety agency certifications.
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