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TUSB1044

SLLSF47B – FEBRUARY 2018 – REVISED APRIL 2018

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Copyright © 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......................................................... 6

6.1

Absolute Maximum Ratings ...................................... 6

6.2

ESD Ratings.............................................................. 6

6.3

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

6.4

Thermal Information .................................................. 6

6.5

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

6.6

Switching Characteristics ........................................ 10

6.7

Timing Requirements .............................................. 11

6.8

Typical Characteristics ............................................ 15

7

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

7.1

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

7.2

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

7.3

Feature Description................................................. 20

7.4

Device Functional Modes........................................ 21

7.5

Programming .......................................................... 34

7.6

Register Maps ........................................................ 36

8

Application and Implementation ........................ 45

8.1

Application Information............................................ 45

8.2

Typical Application ................................................. 45

8.3

System Examples .................................................. 49

9

Power Supply Recommendations ...................... 56

10

Layout................................................................... 57

10.1

Layout Guidelines ................................................. 57

10.2

Layout Example .................................................... 58

11

Device and Documentation Support ................. 59

11.1

Documentation Support ....................................... 59

11.2

Receiving Notification of Documentation Updates 59

11.3

Community Resources.......................................... 59

11.4

Trademarks ........................................................... 59

11.5

Electrostatic Discharge Caution ............................ 59

11.6

Glossary ................................................................ 59

12

Mechanical, Packaging, and Orderable

Information ........................................................... 59

4 Revision History

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

Changes from Revision A (February 2018) to Revision B

Page

•

Changed the Simplified Schematic......................................................................................................................................... 1

Changes from Original (February 2018) to Revision A

Page

•

Changed text in the Detailed Design Procedure From: "This AC-coupling capacitor should be no more than 220 nF."

To: This AC-coupling capacitor should be no smaller than 297 nF. A value of 330 nF is recommended." ......................... 46

•

Changed 220 nF to 330 nF on DRX2P, DRX2N and DRX1P, DRX1N in Figure 36 ........................................................... 47