LM3642

SNVS891H – SEPTEMBER 2012 – REVISED SEPTEMBER 2015

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Table of Contents

7.5

Programming........................................................... 12

1

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

7.6

Register Map........................................................... 15

2

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

8

Application and Implementation ........................ 18

3

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

8.1

Application Information............................................ 18

4

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

8.2

Typical Application ................................................. 18

5

Pin Configuration and Functions ......................... 3

9

Power Supply Recommendations ...................... 22

6

Specifications......................................................... 4

10

Layout................................................................... 22

6.1

Absolute Maximum Ratings ...................................... 4

10.1

Layout Guidelines ................................................. 22

6.2

ESD Ratings.............................................................. 4

10.2

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

6.3

Recommended Operating Conditions ....................... 4

11

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

6.4

Thermal Information .................................................. 4

11.1

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

6.5

Electrical Characteristics........................................... 5

11.2

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

6.6

Timing Requirements ................................................ 6

11.3

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

6.7

Typical Characteristics .............................................. 7

11.4

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

7

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

11.5

Electrostatic Discharge Caution ............................ 24

7.1

Overview ................................................................... 9

11.6

Glossary ................................................................ 24

7.2

Functional Block Diagram ......................................... 9

12

Mechanical, Packaging, and Orderable

7.3

Feature Description................................................. 10

Information ........................................................... 24

7.4

Device Functional Modes........................................ 11

4 Revision History

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

Changes from Revision G (December 2014) to Revision H

Page

•

Changed Handling Ratings table to ESD Ratings table per SDS format; move Storage Temp to Abs Max table ............... 4

•

Added "If an I2C command is used to terminate the flash event, TI recommends selecting a flash time-out level 100

ms above the desired flash duration ." to end of Flash Time-Out subsection...................................................................... 10

Changes from Revision F (December 2013) to Revision G

Page

•

Added Pin Configuration and Functions section, Handling Rating table, Feature Description section, Device

Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout

section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information

section ................................................................................................................................................................................... 1

•

Added updated full Thermal Information ............................................................................................................................... 4

Changes from Revision E (May 2013) to Revision F

Page

•

Deleted TX interrupt ............................................................................................................................................................... 9

2

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