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TPS62840

SLVSEC6D – JUNE 2019 – REVISED MARCH 2020

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Copyright © 2019–2020, Texas Instruments Incorporated

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......................................................... 6

7.1

Absolute Maximum Ratings ...................................... 6

7.2

ESD Ratings.............................................................. 6

7.3

Recommended Operating Conditions ....................... 6

7.4

Thermal Information .................................................. 6

7.5

Electrical Characteristics........................................... 7

7.6

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

8

Detailed Description ............................................ 11

8.1

Overview ................................................................. 11

8.2

Functional Block Diagram ....................................... 11

8.3

Feature Description................................................. 12

8.4

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

9

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

9.1

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

9.2

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

9.3

System Example ..................................................... 27

10

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

11

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

11.1

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

11.2

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

12

Device and Documentation Support ................. 30

12.1

Device Support...................................................... 30

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 (November 2019) to Revision D

Page

•

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

•

Added efficiency graphs to the Application Curves .............................................................................................................. 20

Changes from Revision B (August 2019) to Revision C

Page

•

Added SON-8, WCSP-6, and thermally enhanced HVSSOP-8 to Features .......................................................................... 1

•

Added ATEX / Intrinsic safety to Applications ....................................................................................................................... 1

•

Updated Typical Application image to show TPS62842DGR device ..................................................................................... 1

•

Added orderable part number TPS62841DGR to Device Comparison Table ....................................................................... 3

•

Added orderable part number TPS62842DGR to Device Comparison Table ....................................................................... 3

•

Updated Thermal Information values to support TPS62842DGR .......................................................................................... 6

•

Added low-side MOSFET switch current limit to Electrical Characteristics ........................................................................... 8

•

Added TPS62841DGR to Output Voltage Selection ........................................................................................................... 13

•

Updated Efficiency Power Save graphs in Application Curves ............................................................................................ 20

•

Updated Load Transient waveform in Application Curves ................................................................................................... 24

•

Added PCB layout for DGR package ................................................................................................................................... 29

Changes from Revision A (July 2019) to Revision B

Page

•

Changed Advance Information marketing status to Production Data ................................................................................... 1