Table of Contents

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

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

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

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

5 Description (continued).................................................. 3

6 Device Comparison Table...............................................3

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

8 Specifications.................................................................. 5

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

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

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

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

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

8.6 Typical Characteristics................................................ 8

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

9.1 Overview................................................................... 11

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

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

9.4 Device Functional Modes..........................................24

10 Application and Implementation................................ 25

10.1 Application Information........................................... 25

10.2 Typical Application.................................................. 25

10.3 System Examples................................................... 30

11 Power Supply Recommendations..............................34

12 Layout...........................................................................35

12.1 Layout Guidelines................................................... 35

12.2 Layout Examples.................................................... 36

13 Device and Documentation Support..........................38

13.1 Device Support....................................................... 38

13.2 Documentation Support.......................................... 38

13.3 Receiving Notification of Documentation Updates..38

13.4 Support Resources................................................. 38

13.5 Trademarks.............................................................38

13.6 Electrostatic Discharge Caution..............................39

13.7 Glossary..................................................................39

14 Mechanical, Packaging, and Orderable

Information.................................................................... 39

4 Revision History

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

Changes from Revision D (June 2020) to Revision E (January 2021)

Page

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

Changes from Revision C (January 2020) to Revision D (June 2020)

Page

• Removed "TBD" from the title of Figure 9-16 .................................................................................................. 17

Changes from Revision B (July 2019) to Revision C (January 2020)

Page

• Added Functional Safety Capable to Features list..............................................................................................1

Changes from Revision A (December 2018) to Revision B (July 2019)

Page

• Changed from Advance Information to Production Data and added the LM51551-Q1 ..................................... 1

LM5155-Q1, LM51551-Q1

SNVSAY4E – AUGUST 2018 – REVISED JANUARY 2021

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