Table of Contents

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

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

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

Family Comparison Table.................................................. 1

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

5 Pin Configuration and Functions...................................3

6 Specifications.................................................................. 4

6.1 Absolute Maximum Ratings, TL331-Q1...................... 4

6.2 Absolute Maximum Ratings, TL331B-Q1 and

TL391B-Q1....................................................................4

6.3 ESD Ratings, All Devices............................................4

6.4 Recommended Operating Conditions, TL331-Q1.......5

6.5 Recommended Operating Conditions, TL331B-

Q1 and TL391B-Q1....................................................... 5

6.6 Thermal Information....................................................5

6.7 Electrical Characteristics, TL331B-Q1 and

TL391B-Q1 ...................................................................6

6.8 Switching Characteristics, TL331B-Q1 and

TL391B-Q1 ...................................................................6

6.9 Electrical Characteristics, TL331-Q1.......................... 7

6.10 Switching Characteristics, TL331-Q1........................7

6.11 Typical Characteristics, TL331-Q1............................ 8

6.12 Typical Characteristics, TL331B-Q1 and

TL391B-Q1....................................................................9

7 Detailed Description......................................................15

7.1 Overview................................................................... 15

7.2 Functional Block Diagram......................................... 15

7.3 Feature Description...................................................15

7.4 Device Functional Modes..........................................15

8 Application and Implementation.................................. 16

8.1 Application Information............................................. 16

8.2 Typical Application.................................................... 16

9 Power Supply Recommendations................................18

10 Layout...........................................................................18

10.1 Layout Guidelines................................................... 18

10.2 Layout Example...................................................... 18

11 Device and Documentation Support..........................19

11.1 Documentation Support.......................................... 19

11.2 Receiving Notification of Documentation Updates.. 19

11.3 Support Resources................................................. 19

11.4 Trademarks............................................................. 19

11.5 Electrostatic Discharge Caution.............................. 19

11.6 Glossary.................................................................. 19

12 Mechanical, Packaging, and Orderable

Information.................................................................... 19

4 Revision History

NOTE: Page numbers for previous revisions may differ from page numbers in the current version.

Changes from Revision E (November 2020) to Revision F (January 2021)

Page

• Corrected front page link text to add missing "B"............................................................................................... 1

Changes from Revision D (June 2020) to Revision E (November 2020)

Page

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

• Changed TL331B-Q1 and TL391B-Q1 minimum recommended supply voltage to 2V throughout datasheet... 1

• Corrected supply voltages for all devices in Family Comparison Table..............................................................1

• Added TL331B-Q1 and TLV391B-Q1 Typical Graphs........................................................................................ 9

Changes from Revision C (October 2013) to Revision D (June 2020)

Page

• Added B device. Updated to current TI datasheet format. Modified front page text to highlight B version.........1

• Added Family Comparison Table........................................................................................................................1

• Added Links to Family Table ..............................................................................................................................1

Changes from Revision B (September 2012) to Revision C (October 2013)

Page

Changes from Revision A (July 2010) to Revision B (September 2012)

Page

TL331-Q1, TL331B-Q1, TL391B-Q1

SLVS969F – OCTOBER 2009 – REVISED JANUARY 2021

www.ti.com

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