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UCC28056

SLUSD37C – OCTOBER 2017 – REVISED FEBRUARY 2018

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Copyright © 2017–2018, 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 .................................................. 4

6.5

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

6.6

Typical Characteristics .............................................. 9

7

Detailed Description ............................................ 12

7.1

Overview ................................................................. 12

7.2

Functional Block Diagram ....................................... 13

7.3

Feature Description................................................. 14

7.4

controller Functional Modes .................................... 23

8

Application and Implementation ........................ 25

8.1

Application Information............................................ 25

8.2

Typical Application ................................................. 25

9

Power Supply Recommendations ...................... 42

10

Layout................................................................... 42

10.1

Layout Guidelines ................................................. 42

10.2

Layout Example .................................................... 42

11

Device and Documentation Support ................. 45

11.1

Custom Design With WEBENCH® Tools ............. 45

11.2

Receiving Notification of Documentation Updates 45

11.3

Community Resources.......................................... 45

11.4

Trademarks ........................................................... 45

11.5

Electrostatic Discharge Caution ............................ 45

11.6

Glossary ................................................................ 45

12

Mechanical, Packaging, and Orderable

Information ........................................................... 45

4 Revision History

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

Changes from Revision B (January 2018) to Revision C

Page

•

Updated Features list ............................................................................................................................................................ 1

•

Updated Description section .................................................................................................................................................. 1

Changes from Revision A (November 2017) to Revision B

Page

•

Updated Simplified Application ............................................................................................................................................... 1

•

Changed document status from Advance Information to Production Data ............................................................................ 1

Changes from Original (October 2017) to Revision A

Page

•

Added WEBENCH links to data sheet ................................................................................................................................... 1