Table of Contents

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

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

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

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

5 Family Comparison Table............................................... 3

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

7 Specifications.................................................................. 5

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

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

7.3 Recommended Operating Conditions.........................6

7.4 Thermal Information: LM193.......................................6

7.5 Thermal Information: LM293, LM393, LM2903

(all 'V' and 'A' suffixes)...................................................6

7.6 Thermal Information: LM393B and LM2903B............. 7

7.7 Electrical Characteristics LM393B.............................. 7

7.8 Electrical Characteristics LM2903B............................ 8

7.9 Switching Characteristics LM393B and LM2903B...... 8

7.10 Electrical Characteristics for LM193, LM293,

and LM393 (without A suffix).........................................9

7.11 Electrical Characteristics for LM293A and

LM393A....................................................................... 10

7.12 Electrical Characteristics for LM2903,

LM2903V, and LM2903AV........................................... 11

7.13 Switching Characteristics: LM193, LM239,

LM393, LM2903, all 'A' and 'V' versions...................... 11

7.14 Typical Characteristics, LMx93, LM2903 (all 'V'

and 'A' suffixes)........................................................... 12

7.15 Typical Characteristics, LM393B and LM2903B..... 13

8 Detailed Description......................................................19

8.1 Overview................................................................... 19

8.2 Functional Block Diagram......................................... 19

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

8.4 Device Functional Modes..........................................19

9 Application and Implementation.................................. 20

9.1 Application Information............................................. 20

9.2 Typical Application.................................................... 20

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

12.2 Receiving Notification of Documentation Updates..24

12.3 Support Resources................................................. 24

12.4 Trademarks.............................................................24

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

12.6 Glossary..................................................................24

13 Mechanical, Packaging, and Orderable

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

4 Revision History

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

Changes from Revision AC (February 2020) to Revision AD (October 2020)

Page

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

Changes from Revision AB (December 2019) to Revision AC (February 2020)

Page

• Changed front page Features, Applications and Description text to highlight B version.................................... 1

• Added WSON and SOT-23-8 packages............................................................................................................. 1

• Added Links to Family Table ..............................................................................................................................3

• Added DDF and DSG pkgs to Thermal Table.....................................................................................................7

Changes from Revision AA (September 2019) to Revision AB (December 2019)

Page

• Changed LM393B and LM2903B from Preview to Active status........................................................................ 1

• Added Family Comparison Table........................................................................................................................3

Changes from Revision Z (October 2017) to Revision AA (September 2019)

Page

• Added "B" devices with various text changes throughout datasheet..................................................................1

• Deleted from Device Information old LM193 CDIP and LCCC package references and drawings. These are

on the LM139-MIL datasheet..............................................................................................................................1

• Added "B" devices Thermal Information table.................................................................................................... 7

• Added "B" device electrical tables...................................................................................................................... 7

• Added "B" device graphs ................................................................................................................................. 13

LM393B, LM2903B, LM193, LM293, LM293A, LM393, LM393A, LM2903, LM2903V

SLCS005AD – OCTOBER 1979 – REVISED OCTOBER 2020

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