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ISO7840, ISO7840F

SLLSEN2B – JULY 2015 – REVISED APRIL 2016

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Copyright © 2015–2016, 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 .............................................. 8

6.9

Electrical Characteristics—5-V Supply ..................... 9

6.10

Supply Characteristics—5-V Supply ....................... 9

6.11

Electrical Characteristics—3.3-V Supply .............. 10

6.12

Supply Current Characteristics—3.3-V Supply ..... 10

6.13

Electrical Characteristics—2.5-V Supply .............. 11

6.14

Supply Current Characteristics—2.5-V Supply ..... 11

6.15

Switching Characteristics—5-V Supply................. 12

6.16

Switching Characteristics—3.3-V Supply.............. 12

6.17

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

6.18

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

6.19

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

7

Parameter Measurement Information ................ 16

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................................................................... 24

11.1

Layout Guidelines ................................................. 24

11.2

Layout Example .................................................... 24

12

Device and Documentation Support ................. 25

12.1

Documentation Support ........................................ 25

12.2

Related Links ........................................................ 25

12.3

Receiving Notification of Documentation Updates 25

12.4

Community Resources.......................................... 25

12.5

Trademarks ........................................................... 25

12.6

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

12.7

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

13

Mechanical, Packaging, and Orderable

Information ........................................................... 26

4 Revision History

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

Changes from Revision A (March 2016) to Revision B

Page

•

Added Features 2.25 V to 5.5 V Level Translation ................................................................................................................ 1

•

Changed the number of years for the isolation barrier life in the Features section .............................................................. 1

•

VDE certification is now complete ......................................................................................................................................... 1

•

Changed the input-to-output test voltage parameter to apparent charge in the Insulation Specifications ............................ 7

•

Changed VCCO to VCCI for the minimum value of the input threshold voltage hysteresis parameter in all electrical

characteristics tables .............................................................................................................................................................. 9

•

Added VCM to the test condition of the common-mode transient immunity parameter in all electrical characteristics tables 9

•

Added the lifetime projection graphs for DW and DWW packages to the Safety Limiting Values section ......................... 14

Changes from Original (July 2015) to Revision A

Page

•

Changed Features From: Industry leading CMTI To: Industry leading CMTI (MIN) ............................................................. 1

•

Changed the Safety and Regulatory Approvals list of Features ............................................................................................ 1

•

Added Features "TUV Certification per EN 61010-1 and EN 60950-1" ................................................................................. 1

•

Changed text in the first paragraph of the Description From: "certifications according to VDE, CSA, and CQC". To:

"certifications according to VDE, CSA, CQC, and TUV." ...................................................................................................... 1

•

Added the DWW pinout image ............................................................................................................................................... 4

•

Added the DWW package to the Thermal Information .......................................................................................................... 6

•

Changed Package Insulation and Safety-Related Specifications, added the 16-DWW Package information....................... 7

•

Added the DWW package information, added "Climatic category", and deleted Note 1 in Insulation Characteristics ......... 7

•

Added Note 1 to Insulation Characteristics ........................................................................................................................... 7