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ISO7720, ISO7721

SLLSEP3C – NOVEMBER 2016 – REVISED JULY 2018

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Copyright © 2016–2018, Texas Instruments Incorporated

Table of Contents

1

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

2

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

3

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

4

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

5

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

6

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

6.1

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

6.2

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

6.3

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

6.4

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

6.5

Power Ratings........................................................... 6

6.6

Insulation Specifications............................................ 7

6.7

Safety-Related Certifications..................................... 8

6.8

Safety Limiting Values .............................................. 9

6.9

Electrical Characteristics—5-V Supply ................... 10

6.10

Supply Current Characteristics—5-V Supply ........ 10

6.11

Electrical Characteristics—3.3-V Supply .............. 11

6.12

Supply Current Characteristics—3.3-V Supply ..... 11

6.13

Electrical Characteristics—2.5-V Supply .............. 12

6.14

Supply Current Characteristics—2.5-V Supply ..... 12

6.15

Switching Characteristics—5-V Supply................. 13

6.16

Switching Characteristics—3.3-V Supply.............. 13

6.17

Switching Characteristics—2.5-V Supply.............. 13

6.18

Insulation Characteristics Curves ......................... 14

6.19

Typical Characteristics .......................................... 15

7

Parameter Measurement Information ................ 17

8

Detailed Description ............................................ 18

8.1

Overview ................................................................. 18

8.2

Functional Block Diagram ....................................... 18

8.3

Feature Description................................................. 19

8.4

Device Functional Modes........................................ 20

9

Application and Implementation ........................ 21

9.1

Application Information............................................ 21

9.2

Typical Application .................................................. 21

10

Power Supply Recommendations ..................... 23

11

Layout................................................................... 23

11.1

Layout Guidelines ................................................. 23

11.2

Layout Example .................................................... 23

12

Device and Documentation Support ................. 24

12.1

Device Support...................................................... 24

12.2

Documentation Support ........................................ 24

12.3

Related Links ........................................................ 24

12.4

Receiving Notification of Documentation Updates 24

12.5

Community Resources.......................................... 24

12.6

Trademarks ........................................................... 24

12.7

Electrostatic Discharge Caution ............................ 25

12.8

Glossary ................................................................ 25

13

Mechanical, Packaging, and Orderable

Information ........................................................... 25

4 Revision History

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

Changes from Revision B (March 2017) to Revision C

Page

•

Added the 8-pin SOIC package (DWV) to the data sheet ..................................................................................................... 1

•

Updated the VDE and CSA certification description throughout the document ..................................................................... 1

•

Changed all certifications to complete for the DW and D packages in the Features section ................................................ 1

•

Changed the climatic category for the D package from 5/125/21 to 55/125/21 .................................................................... 7

•

(respectively) in the Safety-Related Certifications table ......................................................................................................... 8

•

Current graph........................................................................................................................................................................ 15

•

Deleted EN from the Common-Mode Transient Immunity Test Circuit figure ...................................................................... 17

•

Added the Device Support section ....................................................................................................................................... 24

Changes from Revision A (December 2016) to Revision B

Page

•

Added D-8 values for TUV in the Safety-Related Certifications table ................................................................................... 8

•

Changed the minimum CMTI value from 40 kV/μs to 85 kV/μs in all Electrical Characteristics tables................................ 10

•

Added the Receiving Notification of Documentation Updates section ................................................................................. 24

•

Changed the Electrostatic Discharge Caution statement .................................................................................................... 24