Product details

Reference voltage Adjustable Initial accuracy (Max) (%) 0.4 VO adj (Min) (V) 2.5 VO adj (Max) (V) 36 Iz for regulation (Min) (uA) 450 Rating Space Temp coeff (Max) (ppm/ degree C) 114 Operating temperature range (C) -55 to 125, 25 to 25 Iout/Iz (Max) (mA) 100
Reference voltage Adjustable Initial accuracy (Max) (%) 0.4 VO adj (Min) (V) 2.5 VO adj (Max) (V) 36 Iz for regulation (Min) (uA) 450 Rating Space Temp coeff (Max) (ppm/ degree C) 114 Operating temperature range (C) -55 to 125, 25 to 25 Iout/Iz (Max) (mA) 100
CDIP (JG) 8 64 mm² 9.6 x 6.67 CFP (U) 10 50 mm² 6.35 x 6.35
  • QMLV qualified to 100-krad(Si) RHA, 5962R99620
  • 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
  • QMLV qualified to 100-krad(Si) RHA, 5962R99620
  • 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

The TL1431 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. This device has a typical output impedance of 0.2 Ω. Active output circuitry provides a very sharp turnon characteristic, making the device an excellent replacement for Zener diodes and other types of references in applications such as onboard regulation, adjustable power supplies, and switching power supplies.

The TL1431 is characterized for operation over the full military temperature range of –55°C to 125°C.

The TL1431 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. This device has a typical output impedance of 0.2 Ω. Active output circuitry provides a very sharp turnon characteristic, making the device an excellent replacement for Zener diodes and other types of references in applications such as onboard regulation, adjustable power supplies, and switching power supplies.

The TL1431 is characterized for operation over the full military temperature range of –55°C to 125°C.

Download

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 16
Type Title Date
* Data sheet TL1431-SP Class V, Precision Programmable Reference datasheet (Rev. C) PDF | HTML 30 Nov 2020
* Radiation & reliability report TL1431-SP (5962R9962001VHA) Neutron Displacement Damage Characterization 30 Nov 2017
* SMD TL1431-SP SMD 5962-99620 08 Jul 2016
* Radiation & reliability report TL1431-RHA TID Report 12 Nov 2014
Application note Heavy Ion Orbital Environment Single-Event Effects Estimations (Rev. A) PDF | HTML 17 Nov 2022
Application note Single-Event Effects Confidence Interval Calculations (Rev. A) PDF | HTML 19 Oct 2022
Application note Analog Front-End Design With Texas Instruments’ Tooling Landscape PDF | HTML 07 Mar 2022
Selection guide TI Space Products (Rev. I) 03 Mar 2022
Application note Space-Grade, 100-krad, Linear Thermoelectric Cooler (TEC) Driver Circuit (Rev. A) PDF | HTML 11 Jan 2022
Circuit design Space-Grade, 100-krad, Window Comparator Circuit PDF | HTML 13 Apr 2021
Circuit design Space-Grade, 50-krad, 1.25-V, Low-Noise Voltage Reference Circuit PDF | HTML 19 Oct 2020
Application note DLA Standard Microcircuit Drawings (SMD) and JAN Part Numbers Primer 21 Aug 2020
Application note Hermetic Package Reflow Profiles, Termination Finishes, and Lead Trim and Form PDF | HTML 18 May 2020
Application note Failure Containment in Spacecraft Point-of-Load Power Supplies 30 Apr 2020
More literature TI Engineering Evaluation Units vs. MIL-PRF-38535 QML Class V Processing 17 Jun 2019
E-book Radiation Handbook for Electronics (Rev. A) 21 May 2019

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Reference designs

PMP22680 — 40-W, ±15-V flyback with magnetic feedback reference design

This reference design generates an isolated ±15 V at 40 W from a 70-V to 120-V DC input voltage. The design uses a magnetic feedback circuit to replace the function of an optocoupler.
Test report: PDF
Reference designs

PMP23033 — 40-W 5-V single-switch forward converter with magnetic feedback reference design

This reference design generates an isolated 5-V at 40-W from a 60-V to 120-V DC-input voltage. The design uses a magnetic feedback circuit to replace the function of an optocoupler.
Test report: PDF
Package Pins Download
CDIP (JG) 8 View options
CFP (U) 10 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos