Texas Instruments TL1431 Data Sheet

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PRECISION PROGRAMMABLE REFERENCE SLVS062F – DECEMBER 1991 – REVISED JANUARY 2000

0.4% Initial Voltage Tolerance D PACKAGE (TOP VIEW)

0.2-Ω Typical Output Impedance Fast Turnon 500 ns CATHODE REF

Sink Current Capability 1 m A to 100 m A ANODE ANODE ANODE ANODE

Low Reference Current (REF)

NC NC

Adjustable Output Voltage VI(ref) to 36 V

NC – No internal connection

description

ANODE terminals are connected internally.

The TL1431 is a precision programmable

LP PACKAGE

reference with specified thermal stability over

(TOP VIEW)

automotive, commercial, and military temperature ranges. The output voltage can be

CATHODE

set to any value between VI(ref) (approximately 2.5 V) and 36 V with two external resistors (see ANODE Figure 16). 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 KTP PACKAGE zener diodes and other types of references in (TOP VIEW)

applications such as onboard regulation,

CATHODE

adjustable power supplies, and switching power

supplies. ANODE ANODE REF

The TL1431C is characterized for operation over the commercial temperature range of 0°C to

The ANODE terminal is in electrical contact with the

70°C. The TL1431Q is characterized for

mounting base.

operation over the full automotive temperature range of –40°C to 125°C. The TL1431M is characterized for operation over the full military

temperature range of –55°C to 125°C. FK PACKAGE (TOP VIEW)

JG PACKAGE (TOP VIEW)

CATHODE REF NC NC NC ANODE NC NC NC NC NC NC

NC NC

NC – No internal connection

NC ANODE NC NC

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

Copyright  2000, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments On products compliant to MIL-PRF-38535, all parameters are tested standard warranty. Production processing does not necessarily include unless otherwise noted. On all other products, production testing of all parameters. processing does not necessarily include testing of all parameters.

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