TL431A

three-terminal adjustable shunt regulator, TO-92, 1 mA to 100 mA, 0.2Ω, 36 V

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Price:: US $0.10~1.00 / piece [Get Latest Price]

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PartNumber:: TL431A

Brand:: ON Semiconductor - ON | Pack: TO | D/C: 10+

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Products Upload time: 2011-12-27

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Part Number:TL431A
US $0.10 - 1.00
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Product Summary

The TL431A is a three-terminal adjustable shunt regulator, with specified thermal stability over applicable automotive, commercial, and military temperature ranges. The output voltage can be set to any value between Vref (approximately 2.5 V) and 36 V, with two external resistors. The TL431A has a typical output impedance of 0.2Ω. Active output circuitry provides a very sharp turn-on characteristic, making the device excellent replacements for Zener diodes in many applications, such as onboard regulation, adjustable power supplies, and switching power supplies.

Parametrics

TL431A absolute maxing ratings: (1)Cathode voltage, VKA: 37V; (2)Continuous cathode current range, IKA: -100 mA to 150 mA; (3)Reference input current range: -50μA to 10 mA; (4)Operating virtual junction temperature, TJ: 150℃; (5)Storage temperature range, Tstg: -65℃ to 150℃.

Features

TL431A features: (1)Operation From -40℃ to 125℃; (2)Reference Voltage Tolerance at 25℃: 0.5% B Grade; 1% A Grade; 2% Standard Grade; (3)Low Output Noise; (4)0.2-Ω Typical Output Impedance; (5)Sink-Current Capability 1 mA to 100 mA; (6)Adjustable Output Voltage Vref to 36 V.