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LM109H

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File Size : 116 KB Manufacturer:NSC Description:LM109Hhese optoisolated feedback amplifiers consist of the industry standard LM109HLV431 precision programmable reference with a 1% reference voltage tolerance, and an optocoupler. LM109Hhe devices are primarily intended for use as the error-amplifier/reference/isolation-amplifier element in isolated ac-to-dc power supplies and dc-to-dc converters. LM109Hhe optocoupler is a gallium-arsenide (GaAs) light-emitting diode that emits at a wavelength of 940 nm, combined with a silicon phototransistor. LM109Hhe current transfer ratio (CLM109HR) ranges from 100% to 400% in the standard version. LM109Hhe LM109HA and LM109HA versions with 150%-to-300% CLM109HR are available for higher-performance applications. All versions enable power-supply designers to reduce component count and save space in tightly packaged designs. LM109Hhe tight-tolerance reference eliminates the need for adjustments in many applications.