A1

A12

B12

B1

A2

A3

A4

A5

A11

A6

A7

A8

A9

A10

B2

B3

B4

B5

B6

B7

B8

B9

B10

B11

VBUS

DP

DM

CC1

CC2

TUSB320LA

CC1

CC2

VBUS_DET

900K

USB VBUS Switch

(optional BC 1.2 support for legacy)

DM_IN

DP_IN

VOUT

DM_OUT

DP_OUT

VIN

150uF

System VBUS

PORT

100nF

VBAT

USB2

OTG

and

PMIC

4.7K

4.7K

SDA/OUT1

SCL/OUT2

INT_N/OUT3

ID

200K

200K

I2C I/O

1.8V or 3.3V

EN

SCL

SDA

FAULT#

DM

DP

PS_EN

PS_FAULT#

VBUS

ID

INT#

SCL

SDA

1uF

5 V

2.7 - 5 V

CC/Mode

Controller

TUSB320

VDD

CC1

CC2

DP

DM

ID

PORT

Processor

GPIOs

VBUS

VBUS

Legacy TypeA

Switch

I2C

Copyright © 2016, Texas Instruments Incorporated

PMIC

CC/Mode

Controller

TUSB320

VDD

VPH

CC1

CC2

DP

DM

PORT

VBUS

ID

Processor

GPIOs

VBUS

I2C

Copyright © 2016, Texas Instruments Incorporated

21

TUSB320LAI, TUSB320HAI

www.ti.com

SLLSEQ8D – OCTOBER 2015 – REVISED MAY 2017

Product Folder Links: TUSB320LAI TUSB320HAI

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Copyright © 2015–2017, Texas Instruments Incorporated

8 Application and Implementation

NOTE

Information in the following applications sections is not part of the TI component

specification, and TI does not warrant its accuracy or completeness. TI’s customers are

responsible for determining suitability of components for their purposes. Customers should

validate and test their design implementation to confirm system functionality.

8.1 Application Information

The TUSB320 device is a Type-C configuration channel logic and port controller. The TUSB320 device can

detect when a Type-C device is attached, what type of device is attached, the orientation of the cable, and power

capabilities (both detection and broadcast). The TUSB320 device can be used in a source application (DFP), in a

sink application (UFP), or a combination source/sink application (DRP).

8.2 Typical Application

8.2.1 DRP in I2C Mode

Figure 10 and Figure 11 show a Type-C configuration for the DRP mode.

Figure 10. TUSB320 in DRP Mode Supporting Default

Implementation

Figure 11. TUSB320 in DRP Mode Supporting Advanced

Power Delivery

Figure 12 shows the TUSB320 device configured as a DRP in I2C mode.

Figure 12. DRP in I2C Mode Schematic