Table of Contents

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

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

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

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

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

6 Specifications.................................................................. 7

6.1 Absolute Maximum Ratings........................................ 7

6.2 ESD Ratings............................................................... 7

6.3 Recommended Operating Conditions.........................8

6.4 Thermal Information....................................................9

6.5 Power Ratings.............................................................9

6.6 Insulation Specifications........................................... 10

6.7 Safety-Related Certifications.................................... 12

6.8 Safety Limiting Values...............................................12

6.9 Electrical Characteristics—5-V Supply..................... 14

6.10 Supply Current Characteristics—5-V Supply.......... 14

6.11 Electrical Characteristics—3.3-V Supply.................15

6.12 Supply Current Characteristics—3.3-V Supply....... 15

6.13 Electrical Characteristics—2.5-V Supply ............... 16

6.14 Supply Current Characteristics—2.5-V Supply....... 16

6.15 Switching Characteristics—5-V Supply...................17

6.16 Switching Characteristics—3.3-V Supply................17

6.17 Switching Characteristics—2.5-V Supply................18

6.18 Insulation Characteristics Curves........................... 18

6.19 Typical Characteristics............................................ 20

7 Parameter Measurement Information.......................... 22

8 Detailed Description......................................................23

8.1 Overview................................................................... 23

8.2 Functional Block Diagram......................................... 23

8.3 Feature Description...................................................24

8.4 Device Functional Modes..........................................25

9 Application and Implementation.................................. 26

9.1 Application Information............................................. 26

9.2 Typical Application.................................................... 27

10 Power Supply Recommendations..............................31

11 Layout........................................................................... 32

11.1 Layout Guidelines................................................... 32

11.2 Layout Example...................................................... 32

12 Device and Documentation Support..........................33

12.1 Device Support....................................................... 33

12.2 Documentation Support.......................................... 33

12.3 Receiving Notification of Documentation Updates..33

12.4 Community Resources............................................33

12.5 Trademarks.............................................................33

12.6 Electrostatic Discharge Caution..............................33

12.7 Glossary..................................................................33

13 Mechanical, Packaging, and Orderable

Information.................................................................... 33

4 Revision History

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

Changes from Revision F (April 2023) to Revision G (May 2024)

Page

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

• Updated Thermal Characteristics, Safety Limiting Values, and Thermal Derating Curves to provide more

accurate system-level thermal calculations........................................................................................................ 7

• Updated electrical and switching characteristics to match device performance.................................................7

Changes from Revision E (March 2020) to Revision F (April 2023)

Page

• Changed standard name from: "DIN VDE V 0884-11:2017-01" to: "DIN EN IEC 60747-17 (VDE 0884-17)"

throughout the document....................................................................................................................................1

• Removed standard revision and year references from all standard names throughout the document.............. 1

• Changed test conditions and values of Maximum surge isolation voltage (VIOSM) specification per DIN EN IEC

60747-17 (VDE 0884-17)..................................................................................................................................10

• Added Maximum impulse voltage (VIMP) specification per DIN EN IEC 60747-17 (VDE 0884-17)..................10

• Clarified method b test conditions of Apparent charge (qPD)............................................................................10

• Removed references to standard IEC/EN/CSA 60950-1 throughout the document.........................................12

• Changed working voltage lifetime margin from 87.5% to 50%, minimum required insulation lifetime from 37.5

years to 30 years, and insulation lifetime per TDDB from 135 years to 169 years in Insulation Lifetime per DIN

EN IEC 60747-17 (VDE 0884-17).....................................................................................................................29

• Changed Figure 9-6 per DIN EN IEC 60747-17 (VDE 0884-17)...................................................................... 29

ISO7720, ISO7721

SLLSEP3G – NOVEMBER 2016 – REVISED MAY 2024

www.ti.com

2

Submit Document Feedback

Copyright © 2024 Texas Instruments Incorporated

Product Folder Links: ISO7720 ISO7721