2

TPS3840

SNVSB03D – DECEMBER 2018 – REVISED JANUARY 2020

www.ti.com

Product Folder Links: TPS3840

Submit Documentation Feedback

Copyright © 2018–2020, Texas Instruments Incorporated

Table of Contents

1

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

2

Applications ........................................................... 1

3

Description ............................................................. 1

4

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

5

Device Comparison ............................................... 3

6

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

7

Specifications......................................................... 5

7.1

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

7.2

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

7.3

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

7.4

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

7.5

Electrical Characteristics........................................... 6

7.6

Timing Requirements ................................................ 7

7.7

Typical Characteristics .............................................. 9

8

Detailed Description ............................................ 16

8.1

Overview ................................................................. 16

8.2

Functional Block Diagram ....................................... 16

8.3

Feature Description................................................. 16

8.4

Device Functional Modes........................................ 19

9

Application and Implementation ........................ 20

9.1

Application Information............................................ 20

9.2

Typical Application ................................................. 20

10

Power Supply Recommendations ..................... 28

11

Layout................................................................... 28

11.1

Layout Guidelines ................................................. 28

11.2

Layout Example .................................................... 28

12

Device and Documentation Support ................. 29

12.1

Device Nomenclature............................................ 29

12.2

Support Resources ............................................... 30

12.3

Trademarks ........................................................... 30

12.4

Electrostatic Discharge Caution ............................ 30

12.5

Glossary ................................................................ 30

13

Mechanical, Packaging, and Orderable

Information ........................................................... 30

4 Revision History

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

Changes from Revision C (August 2019) to Revision D

Page

•

Deleted Device Comparison table .......................................................................................................................................... 3

•

Added Device Nomenclature figure ....................................................................................................................................... 3

•

Changed µF to Farads to fix the units for the delay equation .............................................................................................. 17

Changes from Revision B (July 2019) to Revision C

Page

•

Changed Device Comparison Table ...................................................................................................................................... 3

Changes from Revision A (May 2019) to Revision B

Page

•

Updated Device Comparison Table ....................................................................................................................................... 3

•

Updated Functional Block Diagram ..................................................................................................................................... 16

•

Changed equation 5 and 6 ................................................................................................................................................... 17

•

Updated Application Design #2 ............................................................................................................................................ 22

Changes from Original (December 2018) to Revision A

Page

•

Changed data sheet from Advanced Information to Production Data.................................................................................... 1