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TUSB8041

SLLSEE4E – JUNE 2014 – REVISED JUNE 2016

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Table of Contents

1

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

2

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

3

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

4

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

5

Description (Continued) ........................................ 3

6

Pin Configuration and Functions ......................... 4

7

Specifications......................................................... 9

7.1

Absolute Maximum Ratings ..................................... 9

7.2

ESD Ratings.............................................................. 9

7.3

Recommended Operating Conditions ....................... 9

7.4

Thermal Information ................................................ 10

7.5

Electrical Characteristics, 3.3-V I/O ........................ 10

7.6

Timing Requirements, Power-Up ............................ 11

7.7

Hub Input Supply Current ....................................... 11

8

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

8.1

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

8.2

Functional Block Diagram ....................................... 12

8.3

Feature Description................................................. 12

8.4

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

8.5

Register Maps ......................................................... 17

9

Applications and Implementation ...................... 29

9.1

Application Information............................................ 29

9.2

Typical Application .................................................. 29

10

Power Supply Recommendations ..................... 37

10.1

TUSB8041 Power Supply ..................................... 37

10.2

Downstream Port Power ....................................... 37

10.3

Ground .................................................................. 37

11

Layout................................................................... 38

11.1

Layout Guidelines ................................................. 38

11.2

Layout Examples................................................... 39

12

Device and Documentation Support ................. 41

12.1

Community Resources.......................................... 41

12.2

Trademarks ........................................................... 41

12.3

Electrostatic Discharge Caution ............................ 41

12.4

Glossary ................................................................ 41

13

Mechanical, Packaging, and Orderable

Information ........................................................... 41

4 Revision History

Changes from Revision D (January 2016) to Revision E

Page

•

Added SMBUS Programming current to the Hub Input Supply Current table ..................................................................... 11

•

Added Note to the SMBus Slave Operation section ............................................................................................................ 16

Changes from Revision C (July 2015) to Revision D

Page

•

Changed Active High. (PWRCTL_POL = 0) To: Active High. (PWRCTL_POL = 1) in Table 48 ........................................ 30

•

Changed text in the Clock, Reset, and Misc section From: "The PWRCTL_POL is pulled down which results in

active low" To: "The PWRCTL_POL is left unconnected which results in active high"........................................................ 34

•

Deleted R17 from pin 41 of Figure 11 ................................................................................................................................. 34

Changes from Revision A (July 2014) to Revision B

Page

•

Added Note ""Power switching must be supported for battery charging applications"" to pin FULLPWRMGMTz /

SMBA1/SS_UP in the Pin Functions table ............................................................................................................................. 7

•

Added Note "Individual power control must be enabled for battery charging applications" to pin GANGED / SMBA2 /

HS_UP in the Pin Functions table .......................................................................................................................................... 8

•

Changed the Handling Ratings table to the ESD Ratings table ............................................................................................. 9

•

Changed the Timing Requirements, Power-Up table: Deleted text from the td1 description: "There is no timing

relationship between VDD33 and VDD": Added Note 2 to the MIN value ........................................................................... 11

•

Added Note: "An active reset is required.." To the Timing Requirements, Power-Up table................................................. 11

•

Changed text in the Clock, Reset, and Misc section From: "The PWRCTL_POL is pulled down which results in

active high power enable" To: "The PWRCTL_POL is pulled down which results in active low power enable" ................. 34