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

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

6.6 Switching Characteristics............................................6

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

7 Parameter Measurement Information............................ 9

8 Detailed Description......................................................10

8.1 Overview................................................................... 10

8.2 Functional Block Diagram......................................... 10

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

8.4 Device Functional Modes..........................................13

9 Application and Implementation.................................. 14

9.1 Application Information............................................. 14

9.2 Typical Application.................................................... 14

9.3 Input Surge Stopper Using LM74502, LM74502H.... 17

9.4 Fast Turn-On and Turn-Off High Side Switch

Driver Using LM74502H.............................................. 18

10 Power Supply Recommendations..............................19

11 Layout........................................................................... 19

11.1 Layout Guidelines................................................... 19

11.2 Layout Example...................................................... 20

12 Device and Documentation Support..........................21

12.1 Receiving Notification of Documentation Updates..21

12.2 Support Resources................................................. 21

12.3 Trademarks.............................................................21

12.4 Electrostatic Discharge Caution..............................21

12.5 Glossary..................................................................21

13 Mechanical, Packaging, and Orderable

Information.................................................................... 22

4 Revision History

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

Changes from Revision * (December 2021) to Revision A (May 2022)

Page

• Removed the product preview note from LM74502H throughout the document................................................ 1

• Updated document title.......................................................................................................................................1

• Added LM74502H to the Pin Configuration and Functions section.................................................................... 3

LM74502, LM74502H

SNOSDE5A – DECEMBER 2021 – REVISED MAY 2022

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