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TL431LI - Programmable Shunt Regulator

General Description

The TL431LI device 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 2.495 V) and 36 V, with two external resistors.

Key Features

  • 1 Reference Voltage Tolerance at 25°C.
  • 0.5% (B Grade).
  • 1% (A Grade).
  • Minimum Typical Output Voltage: 2.495 V.
  • Adjustable Output Voltage: Vref to 36 V.
  • Operation From.
  • 40°C to +125°C (Q Temp).
  • Maximum Temperature Drift.
  • 10 mV (C Temp).
  • 17 mV (I Temp).
  • 27 mV (Q Temp).
  • 0.3-Ω Typical Output Impedance.
  • Sink-Current Capability.
  • Imin = 1 mA (max).
  • IKA = 15 mA (max).

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Product Folder Order Now Technical Documents Tools & Software Support & Community TL431LI TL432LI SLVSDQ6A – JULY 2018 – REVISED NOVEMBER 2018 TL431LI / TL432LI Programmable Shunt Regulator with Optimized Reference Current 1 Features •1 Reference Voltage Tolerance at 25°C – 0.5% (B Grade) – 1% (A Grade) • Minimum Typical Output Voltage: 2.495 V • Adjustable Output Voltage: Vref to 36 V • Operation From −40°C to +125°C (Q Temp) • Maximum Temperature Drift – 10 mV (C Temp) – 17 mV (I Temp) – 27 mV (Q Temp) • 0.3-Ω Typical Output Impedance • Sink-Current Capability – Imin = 1 mA (max) – IKA = 15 mA (max) • Reference Input Current IREF: 0.4 μA (max) • Deviation of Reference Input Current over Temperature, II(dev): 0.