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LM2903-Q1, LM2903B-Q1

SLCS141H – MAY 2003 – REVISED JANUARY 2020

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Product Folder Links: LM2903-Q1 LM2903B-Q1

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Copyright © 2003–2020, 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, LM2903-Q1 and

LM2903E-Q1.............................................................. 4

6.2

Absolute Maximum Ratings, LM2903B-Q1............... 4

6.3

ESD Ratings, LM2903-Q1 and LM2903E-Q1 ........... 4

6.4

ESD Ratings, LM2903B-Q1 ...................................... 4

6.5

Recommended Operating Conditions, LM2903B-

Q1 .............................................................................. 5

6.6

Recommended Operating Conditions, LM2903-Q1.. 5

6.7

Recommended Operating Conditions, LM2903E-

Q1 .............................................................................. 5

6.8

Thermal Information, LM2903-Q1 and LM2903E-

Q1 .............................................................................. 5

6.9

Thermal Information, LM2903B-Q1 .......................... 5

6.10

Electrical Characteristics LM2903B-Q1 .................. 6

6.11

Switching Characteristics LM2903B-Q1 ................. 6

6.12

Electrical Characteristics, LM2903-Q1 and

LM2903E-Q1.............................................................. 7

6.13

Switching Characteristics, LM2903-Q1 and

LM2903E-Q1.............................................................. 7

6.14

Typical Characteristics, LM2903-Q1 and LM2903E-

Q1 Only ...................................................................... 8

6.15

Typical Characteristics, LM2903B-Q1 Only ............ 9

7

Detailed Description ............................................ 15

7.1

Overview ................................................................. 15

7.2

Functional Block Diagram ....................................... 15

7.3

Feature Description................................................. 15

7.4

Device Functional Modes........................................ 15

8

Application and Implementation ........................ 16

8.1

Application Information............................................ 16

8.2

Typical Application ................................................. 16

9

Power Supply Recommendations ...................... 18

10

Layout................................................................... 18

10.1

Layout Guidelines ................................................. 18

10.2

Layout Example .................................................... 18

11

Device and Documentation Support ................. 19

11.1

Related Links ........................................................ 19

11.2

Receiving Notification of Documentation Updates 19

11.3

Support Resources ............................................... 19

11.4

Trademarks ........................................................... 19

11.5

Electrostatic Discharge Caution ............................ 19

11.6

Glossary ................................................................ 19

12

Mechanical, Packaging, and Orderable

Information ........................................................... 19

4 Revision History

Changes from Revision G (November 2018) to Revision H

Page

•

Added LM2903B-Q1 to datasheet .......................................................................................................................................... 1

•

Added Device Information table. ........................................................................................................................................... 1

•

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

•

Added "B" device graphs ....................................................................................................................................................... 9

•

Changed incorrect input text in Feature Description in Apps Section. ................................................................................. 15

Changes from Revision F (May 2018) to Revision G

Page

•

Changed previous Q1 graphs to match new format .............................................................................................................. 8

•

Added LM2903E-Q1 specific graphs...................................................................................................................................... 8

Changes from Revision E (June 2014) to Revision F

Page

•

Added LM2903E-Q1 to datasheet .......................................................................................................................................... 1

•

Changed Thermal Information Table ..................................................................................................................................... 5