CC1

CC2

PORT

VBUS_DET

OUT2

OUT1

VDD

DIR

GND

ID

VBUS

Detection

VCONN

Power Rail

Controller

CURRENT_MODE

VCONN_FAULT

CC Logic

for Mode

Configuration

and Detection

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Folder

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TUSB321AI

SLLSER2 – OCTOBER 2015

TUSB321AI USB Type-C Configuration Channel Logic and Port Control with VCONN

1 Features

3 Description

The TUSB321AI device enables USB Type-C ports

1

•

USB Type-C™ Specification 1.1

with the configuration channel (CC) logic needed for

•

Backward Compatible with USB Type-C

Type-C ecosystems. The TUSB321AI device uses

Specification 1.0

the CC pins to determine port attach and detach,

•

Supports Up to 3 A of Current Advertisement

cable orientation, role detection, and port control for

Type-C current mode. The TUSB321AI device can be

through dedicated Current Mode pin

configured as a downstream facing port (DFP),

•

Mode Configuration

upstream facing port (UFP) or a dual role port (DRP)

–

Host Only – DFP (Source)

making it ideal for any application.

–

Device Only – UFP (Sink)

The TUSB321AI device when configured as a DRP

–

Dual Role Port – DRP

alternates configuration as a DFP or UFP according

to the Type-C Specifications. The CC logic block

•

Channel Configuration (CC)

monitors the CC1 and CC2 pins for pullup or

–

Attach of USB Port Detection

pulldown resistances to determine when a USB port

–

Cable Orientation Detection

has been attached, the orientation of the cable, and

–

Role Detection

the role detected. The CC logic detects the Type-C

current mode as default, medium, or high depending

–

Type-C Current Mode advertisement and

detection (Default, Medium, High)

to determine a successful attach in UFP and DRP

•

modes.

•

VCONN Support for Active Cables

The device operates over a wide supply range and

•

Cable Detection and Direction Control

has low-power consumption. The TUSB321AI device

for External Switches

is available in industrial and commercial temperature

ranges.

•

Supply Voltage: 4.5 V to 5.5 V

•

Low Current Consumption

Device Information(1)

•

Industrial Temperature Range of –40 to 85°C

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TUSB321AI

X2QFN (12)

1.60 mm × 1.60 mm

2 Applications

(1) For all available packages, see the orderable addendum at

•

Host, Device, Dual Role Port Applications

the end of the data sheet.

•

Mobile Phones

•

Tablets and Notebooks

•

USB Peripherals

Simplified Schematic

Sample Application

1

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.