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TL1431 - Precision Programmable Reference

General Description

The TL1431 device is a precision programmable reference with specified thermal stability over automotive, commercial, and military temperature ranges.

The output voltage can be set to any value between VI(ref) (approximately 2.5 V) and 36 V with two external resistors (see Figure 25).

Key Features

  • 1 0.4% Initial Voltage Tolerance.
  • 0.2-Ω Typical Output Impedance.
  • Fast Turnon (500 ns).
  • Sink Current Capability (1 mA to 100 mA).
  • Low Reference Current (REF).
  • Adjustable Output Voltage (VI(ref) to 36 V) 2.

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Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design TL1431, TL1431M SLVS062N – DECEMBER 1991 – REVISED OCTOBER 2016 TL1431 Precision Programmable Reference 1 Features •1 0.4% Initial Voltage Tolerance • 0.2-Ω Typical Output Impedance • Fast Turnon (500 ns) • Sink Current Capability (1 mA to 100 mA) • Low Reference Current (REF) • Adjustable Output Voltage (VI(ref) to 36 V) 2 Applications • Adjustable Voltage and Current Referencing • Secondary Side Regulation in Flyback SMPSs • Zener Replacement • Voltage Monitoring • Comparator With Integrated Reference 3 Description The TL1431 device is a precision programmable reference with specified thermal stability over automotive, commercial, and military temperature ranges.