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

SLCS005AC – OCTOBER 1979 – REVISED FEBRUARY 2020

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Product Folder Links: LM393B LM2903B LM193 LM293 LM293A LM393 LM393A LM2903 LM2903V

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Copyright © 1979–2020, Texas Instruments Incorporated

Table of Contents

1

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

2

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

3

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

4

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

5

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

6

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

6.1

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

6.2

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

6.3

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

6.4

Thermal Information: LM193 ..................................... 5

6.5

Thermal Information: LM293, LM393, LM2903 (all 'V'

and 'A' suffixes).......................................................... 5

6.6

Thermal Information: LM393B and LM2903B ........... 5

6.7

Electrical Characteristics LM393B ............................ 6

6.8

Electrical Characteristics LM2903B .......................... 7

6.9

Switching Characteristics LM393B and LM2903B .... 7

6.10

Electrical Characteristics for LM193, LM293, and

LM393 (without A suffix) ............................................ 8

6.11

Electrical Characteristics for LM293A and

LM393A...................................................................... 9

6.12

Electrical Characteristics for LM2903, LM2903V,

and LM2903AV ........................................................ 10

6.13

Switching Characteristics: LM193, LM239, LM393,

LM2903, all 'A' and 'V' versions ............................... 10

6.14

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

'A' suffixes) .............................................................. 11

6.15

Typical Characteristics, LM393B and LM2903B ... 12

7

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

7.1

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

7.2

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

7.3

Feature Description................................................. 18

7.4

Device Functional Modes........................................ 18

8

Application and Implementation ........................ 19

8.1

Application Information............................................ 19

8.2

Typical Application ................................................. 19

9

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

10

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

10.1

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

10.2

Layout Example .................................................... 22

11

Device and Documentation Support ................. 23

11.1

Related Links ........................................................ 23

11.2

Receiving Notification of Documentation Updates 23

11.3

Support Resources ............................................... 23

11.4

Trademarks ........................................................... 23

11.5

Electrostatic Discharge Caution ............................ 23

11.6

Glossary ................................................................ 23

12

Mechanical, Packaging, and Orderable

Information ........................................................... 23

4 Revision History

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

Changes from Revision AB (December 2019) to Revision AC

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 ................................................................................................................................................. 1

•

Added DDF and DSG pkgs to Thermal Table ........................................................................................................................ 5

Changes from Revision AA (September 2019) to Revision AB

Page

•

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

•

Added Family Comparison Table ........................................................................................................................................... 1

Changes from Revision Z (October 2017) to Revision AA

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. ....................................................................................................................... 5

•

Added "B" device electrical tables .......................................................................................................................................... 6

•

Added "B" device graphs ..................................................................................................................................................... 12