TUSB320HAI datasheet(24/38 Pages) TI2

24 / 38 page

A12

B12

A11

A10

B10

B11

VBUS

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

VDD_5V

USB2

OTG

and

PMIC

4.7K

SDA/OUT1

SCL/OUT2

INT_N/OUT3

200K

I2C I/O

1.8V or 3.3V

SCL

SDA

FAULT#

PS_EN

PS_FAULT#

VBUS

INT#

SCL

SDA

200K

CC/Mode

Controller

PMIC

TUSB320

VDD

VPH

CC1

CC2

PORT

VBUS

Processor

GPIOs

VBUS

VDD

I2C

CC/Mode

Controller

TUSB320

VDD

CC1

CC2

PORT

Processor

GPIOs

Legacy TypeA

Switch

5 V

VBUS

2.7 - 5 V

VDD

I2C

TUSB320LAI, TUSB320HAI

SLLSEQ8D – OCTOBER 2015 – REVISED MAY 2017

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Product Folder Links: TUSB320LAI TUSB320HAI

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8.2.2 DFP in I2C Mode

Figure 14 and Figure 15 show a Type-C configuration for the DFP mode.

Figure 14. TUSB320 in DFP Mode Supporting Default

Implementation

Figure 15. TUSB320 in DFP Mode Supporting Advanced

Power Delivery

Figure 16 shows the TUSB320 device configured as a DFP in I2C mode.

Figure 16. DFP in I2C Mode Schematic

8.2.2.1 Design Requirements

For this design example, use the parameters listed in Table 15:

Table 15. Design Requirements for DFP in I2C Mode

DESIGN PARAMETER

VALUE

VDD (2.75 V to 5 V)

5 V

Mode (I2C or GPIO)

I2C: ADDR pin must be pulled down or pulled up

I2C address (0x67 or 0x47)

0x47: ADDR pin must be pulled low or tied to GND

Type-C port type (UFP, DFP, or DRP)

DFP: PORT pin is pulled up

Shutdown support

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