Transcription of TL431 - Programmable Precision References
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TL431 - Programmable Precision References
Semiconductor Components Industries, LLC, 1995 October, 2016 Rev. 391 Publication Order Number: TL431 /DTL431A, B Series,NCV431A, B Series,SCV431 AProgrammable Precision ReferencesThe 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.
TL431A, B Series, NCV431A, B Series, SCV431A www.onsemi.com 2 1.0 k Cathode (K) 2.5 Vref Anode (A) Reference (R) 4.0 k 150 Figure …
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