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TUSB321

SLLSEO6C – JUNE 2015 – REVISED AUGUST 2018

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Copyright © 2015–2018, 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

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

7

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

7.1

Overview ................................................................... 8

7.2

Functional Block Diagram ......................................... 9

7.3

Feature Description................................................... 9

7.4

Device Functional Modes........................................ 11

8

Application and Implementation ........................ 13

8.1

Application Information............................................ 13

8.2

Typical Application .................................................. 13

8.3

Initialization Set Up ................................................ 17

9

Power Supply Recommendations ...................... 17

10

Layout................................................................... 17

10.1

Layout Guidelines ................................................. 17

10.2

Layout Example .................................................... 17

11

Device and Documentation Support ................. 18

11.1

Receiving Notification of Documentation Updates 18

11.2

Community Resources.......................................... 18

11.3

Trademarks ........................................................... 18

11.4

Electrostatic Discharge Caution ............................ 18

11.5

Glossary ................................................................ 18

12

Mechanical, Packaging, and Orderable

Information ........................................................... 18

4 Revision History

Changes from Revision B (September 2016) to Revision C

Page

•

Deleted Feature "Industrial Temperature Range of –40 to 85°C" ......................................................................................... 1

•

Deleted text from the Description: "The TUSB321 device is available in industrial and commercial temperature

ranges." ................................................................................................................................................................................. 1

•

Changed pin VBUS_DET description From: 900-kΩ To: RVBUS in Pin Functions table. ........................................................ 3

•

Changed RVBUS values From: MIN = 891, TYP = 900, MAX = 909 KΩ To: MIN = 855, TYP = 887, MAX = 920 KΩ ........... 6

•

Changed resister value From: 900 kΩ To: To: RVBUS in Figure 3........................................................................................... 8

•

Changed resister value From: 900 kΩ To: To: RVBUS in Functional Block Diagram............................................................... 9

•

Changed From: The system VBUS voltage must be routed through a 900-kΩ resistor to the VBUS_DET pin .. To: The

system VBUS voltage must be routed through a RVBUS resistor to the VBUS_DET pin .. in the VBUS Detection................... 11

•

Added resister RVBUS in Figure 4 .......................................................................................................................................... 14

•

Added row for RVBUS to Table 4 ........................................................................................................................................... 15

•

Changed From: must be connected through a 900-kΩ resistor to VBUS on the Type-C... To: must be connected

through a RVBUS resistor to VBUS on the Type-C .. in the Detailed Design Procedure.......................................................... 15

Changes from Revision A (June 2015) to Revision B

Page

•

Changed pins CC1 and CC2 values From: MIN = –0.3 MAX = VDD + 0.3 To: MIN –0.3 MAX = 6 in the Absolute

Maximum Ratings ................................................................................................................................................................... 4

Changes from Original (June 2015) to Revision A

Page

•

Changed device status from Product Preview to Production Data ....................................................................................... 1