TL431 - Programmable Precision References

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DATA Semiconductor Components Industries, LLC, 1995August, 2021 Rev. 421Publication Order Number: TL431 /DProgrammable Precision ReferencesTL431A, B Series,NCV431A, B Series,SCV431AThe 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.

amp circuitry. 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 • Voltage Reference Tolerance: ±0.4%, Typ @ 25°C (TL431B)

  Reference, Precision, Voltage, Programmable, Reference voltage, Programmable precision