TL431BQLPR datasheet(2/78 Pages) TI1

2 / 78 page

Table of Contents

1 Features............................................................................1

2 Applications..................................................................... 1

3 Description.......................................................................1

4 Revision History.............................................................. 2

5 Device Comparison Table...............................................3

6 Pin Configuration and Functions...................................4

7 Specifications.................................................................. 5

7.1 Absolute Maximum Ratings........................................ 5

7.2 ESD Ratings............................................................... 5

7.3 Thermal Information....................................................5

7.4 Recommended Operating Conditions.........................5

7.5 Electrical Characteristics, TL431C, TL432C............... 6

7.6 Electrical Characteristics, TL431I, TL432I.................. 7

7.7 Electrical Characteristics, TL431Q, TL432Q...............8

7.8 Electrical Characteristics, TL431AC, TL432AC.......... 9

7.9 Electrical Characteristics, TL431AI, TL432AI........... 10

7.10 Electrical Characteristics, TL431AQ, TL432AQ...... 11

7.11 Electrical Characteristics, TL431BC, TL432BC...... 12

7.12 Electrical Characteristics, TL431BI, TL432BI......... 13

7.13 Electrical Characteristics, TL431BQ, TL432BQ......14

7.14 Typical Characteristics............................................ 15

8 Parameter Measurement Information.......................... 19

8.1 Temperature Coefficient............................................19

8.2 Dynamic Impedance................................................. 20

9 Detailed Description......................................................21

9.1 Overview................................................................... 21

9.2 Functional Block Diagram......................................... 21

9.3 Feature Description...................................................22

9.4 Device Functional Modes..........................................22

10 Applications and Implementation.............................. 23

10.1 Application Information........................................... 23

10.2 Typical Applications................................................ 23

10.3 System Examples................................................... 28

10.4 Power Supply Recommendations...........................31

10.5 Layout..................................................................... 31

11 Device and Documentation Support..........................32

11.1 Device Nomenclature..............................................32

11.2 Related Links.......................................................... 32

11.3 Receiving Notification of Documentation Updates.. 32

11.4 Support Resources................................................. 32

11.5 Trademarks............................................................. 32

11.6 Electrostatic Discharge Caution.............................. 33

11.7 Glossary.................................................................. 33

12 Mechanical, Packaging, and Orderable

Information.................................................................... 33

4 Revision History

Changes from Revision Q (July 2022) to Revision R (August 2023)

Page

• Updated Applications section links..................................................................................................................... 1

• Updated Description section...............................................................................................................................1

• Removed KTP package......................................................................................................................................4

• Added detailed Temperature Coefficient and Dynamic Impedance sections....................................................19

• Updated Applications section........................................................................................................................... 26

• Updated LP package in Device Nomenclature figure....................................................................................... 32

Changes from Revision P (November 2018) to Revision Q (July 2022)

Page

• Updated the numbering format for tables, figures, and cross-references throughout the document................. 1

• Corrected the device names in the Pin Functions table..................................................................................... 4

Changes from Revision O (January 2015) to Revision P (November 2018)

Page

• Added text to the Description section.................................................................................................................1

• Added TL43x Device Comparison Table ........................................................................................................... 3

• Added TL43x Device Nomenclature section.....................................................................................................32

Changes from Revision N (January 2014) to Revision O (January 2015)

Page

• Added Applications, Device Information table, Pin Functions table, ESD Ratings table, Thermal Information

table, Feature Description section, Device Functional Modes, Application and Implementation section, Power

Supply Recommendations section, Layout section, Device and Documentation Support section, and

Mechanical, Packaging, and Orderable Information section.............................................................................. 1

• Added Applications.............................................................................................................................................1

TL431, TL432

SLVS543R – AUGUST 2004 – REVISED OCTOBER 2023

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