Transcription of TL431 - Programmable Precision References
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TL431 - Programmable Precision References
DATA Semiconductor Components Industries, LLC, 1995 August, 2021 Rev. 421 Publication Order Number: TL431 /DProgrammable Precision ReferencesTL431A, B Series,NCV431A, B Series,SCV431 AThe TL431A, B integrated circuits are three terminalprogrammable shunt regulator diodes. These monolithic IC voltagereferences operate as a low temperature coefficient zener which isprogrammable from Vref to 36 V with two external resistors. Thesedevices exhibit a wide operating current range of mA to 100 mAwith a typical dynamic impedance of W. The characteristics ofthese References make them excellent replacements for zener diodes inmany applications such as digital voltmeters, power supplies, and opamp circuitry. The V reference makes it convenient to obtaina stable reference from V logic supplies, and since the TL431A,B operates as a shunt regulator, it can be used as either a positive ornegative voltage Programmable Output Voltage to 36 V Voltage reference Tolerance: , Typ @ 25 C (TL431B) Low Dynamic Output Impedance, W Typical Sink Current Capability of mA to 100 mA Equivalent Full Range Temperature Coefficient of 50 ppm/ C Typical Temperature Compensated for Operation over Full Rated OperatingTemperature Range Low Output Noise Vol
The 2.5 V reference makes it convenient to obtain a stable reference from 5.0 V logic supplies, and since the TL431A, B operates as a shunt regulator, it can be used as either a positive or negative voltage reference. Features • Programmable Output Voltage to 36 V
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