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.................................................................. 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 Timing Requirements .................................................9

7.7 Timing Diagrams ......................................................10

7.8 Typical Characteristics.............................................. 12

8 Detailed Description......................................................15

8.1 Overview................................................................... 15

8.2 Functional Block Diagram......................................... 15

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

9 Device Functional Modes............................................. 24

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

10.1 Adjustable Voltage Thresholds............................... 25

10.2 Application Information........................................... 26

10.3 Typical Application.................................................. 26

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

11.1 Power Dissipation and Device Operation................28

12 Layout...........................................................................29

12.1 Layout Guidelines................................................... 29

12.2 Layout Example...................................................... 29

12.3 Creepage Distance................................................. 30

13 Device and Documentation Support..........................31

13.1 Device Nomenclature..............................................31

13.2 Support Resources................................................. 32

13.3 Trademarks.............................................................32

13.4 Electrostatic Discharge Caution..............................32

13.5 Glossary..................................................................32

14 Mechanical, Packaging, and Orderable

Information.................................................................... 32

4 Revision History

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

Changes from Revision A (January 2021) to Revision B (September 2021)

Page

• Updated the title of datasheet and removed "x" from the part number...............................................................1

• Edited Device Comparison Table and added DYY package...............................................................................3

• Edited DSK package figure, added DYY package figure and updated Pin Functions Table.............................. 4

• Added SENSEx undervoltage (UV) and overvoltage (OV) timing diagrams.....................................................10

• Updated the typical characteristic curves......................................................................................................... 12

• Updated Functional Block Diagram.................................................................................................................. 15

• Edited both Power Cycle figures (SENSE Outside and With in Nominal Voltage)........................................... 16

• Moved Common Hysteresis Lookup Table to SENSE Hysteresis section and added hysteresis examples.... 18

• Added min and max reset time delay equations...............................................................................................21

• Added min and max sense time delay equations............................................................................................. 22

• Edited manual reset (MR) timing diagram........................................................................................................ 23

• Updated Table 9-2 description from "Undervoltage" to "Overvoltage"..............................................................24

• Added equations to solve for R1 and schematic figure.................................................................................... 25

• Updated layout guidelines and example drawing. Added DYY example drawing............................................ 29

Changes from Revision * (August 2020) to Revision A (January 2021)

Page

• APL Update........................................................................................................................................................ 1

• Added Typical Supply Current vs VDD Curve and modified Description section............................................... 1

• Edited Device Comparison Table........................................................................................................................3

• Edited both Power Cycle figures (SENSE Outside and Within Nominal Voltage)............................................ 16

• Corrected the Hysteresis titles for both Undervoltage figures.......................................................................... 18

• Corrected Channel 1 of TPS37E from Open-Drain Low to Open-Drain High in Output Logic table.................20

• Added reset time delay discharge guideline..................................................................................................... 21

• Added sense time delay discharge guideline................................................................................................... 22

• Added Device Functional Modes tables........................................................................................................... 24

• Added correct Package Outline figure.............................................................................................................. 32

TPS37-Q1

SNVSBD9B – AUGUST 2020 – REVISED SEPTEMBER 2021

www.ti.com

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