Table of Contents

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

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

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

4 Pin Configuration and Functions...................................3

5 Specifications.................................................................. 4

5.1 Absolute Maximum Ratings, TL331-Q1,

TL331E-Q1....................................................................4

5.2 Absolute Maximum Ratings, TL331B-Q1 and

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

5.3 ESD Ratings, All Devices............................................4

5.4 Recommended Operating Conditions, TL331-

Q1, TL331E-Q1............................................................. 5

5.5 Recommended Operating Conditions, TL331B-

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

5.6 Thermal Information....................................................5

5.7 Electrical Characteristics, TL331B-Q1 and

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

5.8 Switching Characteristics, TL331B-Q1 and

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

5.9 Electrical Characteristics, TL331-Q1, TL331E-Q1......7

5.10 Switching Characteristics, TL331-Q1, TL331E-

Q1..................................................................................7

5.11 Typical Characteristics.............................................. 8

6 Detailed Description......................................................14

6.1 Overview................................................................... 14

6.2 Functional Block Diagram......................................... 14

6.3 Feature Description...................................................14

6.4 Device Functional Modes..........................................14

7 Application and Implementation.................................. 15

7.1 Application Information............................................. 15

7.2 Typical Application.................................................... 15

7.3 Power Supply Recommendations.............................17

7.4 Layout....................................................................... 17

8 Device and Documentation Support............................18

8.1 Documentation Support............................................ 18

8.2 Receiving Notification of Documentation Updates....18

8.3 Support Resources................................................... 18

8.4 Trademarks...............................................................18

8.5 Electrostatic Discharge Caution................................18

8.6 Glossary....................................................................18

9 Revision History............................................................ 19

10 Mechanical, Packaging, and Orderable

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

TL331-Q1, TL331B-Q1, TL391B-Q1

SLVS969H – OCTOBER 2009 – REVISED JANUARY 2025

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