TUSB322I Datasheet, PDF (1/37 Pages) Texas Instruments – Configuration Channel Logic and Port Control

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TUSB322I
SLLSEO5 – OCTOBER 2015
TUSB322I USB Type-C™ Configuration Channel Logic and Port Control with VCONN
1 Features
•1 USB Type-C™ Specification 1.1
• Backward Compatible with USB Type-C
Specification 1.0
• Supports Up to 3 A of Current Advertisement and
Detection
• Mode Configuration
– Host Only – DFP/Source (I²C Mode only)
– Device Only – UFP/Sink (I²C Mode only)
– Dual Role Port – DRP
• Channel Configuration (CC)
– Attach of USB Port Detection
– Cable Orientation Detection
– Role Detection
– Type-C Current Mode (Default, Medium, High)
• V_BUS Detection
• I²C or GPIO Control
• VCONN Support for Active Cables
• Cable Detection and Direction Control
for External Switches
• Role Configuration Control through I²C
• Supply Voltage: 4.5 V to 5.5 V
• Low Current Consumption
• Industrial Temperature Range of –40 to 85°C
2 Applications
• Host, Device, Dual Role Port Applications
• Mobile Phones
• Tablets and Notebooks
• USB Peripherals
Simplified Schematic
VDD
3 Description
The TUSB322I device enables USB Type-C ports
with the configuration channel (CC) logic required for
Type-C ecosystems. The TUSB322I device uses the
CC pins to determine port attach and detach, cable
orientation, role detection, and port control for Type-C
current mode. The TUSB322I device can be
configured as a downstream facing port (DFP),
upstream facing port (UFP), or a dual role port (DRP),
making the TUSB322I device ideal for any
application.
The TUSB322I device alternates configuration as a
DFP or UFP according to the Type-C Specifications.
The CC logic block monitors the CC1 and CC2 pins
for pullup or pulldown resistances to determine when
a USB port has been attached, the orientation of the
cable, and the role detected. The CC logic detects
the Type-C current mode as default, medium, or high
depending on the role detected. V_BUS detection is
implemented to determine a successful attach in UFP
and DRP modes. The TUSB322I will supply VCONN
when an active cable is detected.
The device operates over a wide supply range and
has low-power consumption. The TUSB322I device is
available in industrial temperature ranges.
Table 1. Device Information⁽¹⁾
PART NUMBER
PACKAGE
TUSB322I
X2QFN (12)
BODY SIZE (NOM)
1.60 mm × 1.60 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Sample Applications
VBUS_DET
VBUS
Detection
VCONN
CC Logic
For Mode
Configuration
and Detection
EN_N
ADDR
ID
SDA/OUT1
SCL/OUT2
INT_N/OUT3
Controller
GND
1
CC1 ^CC1
CC2 ^CC2
DIR
GPIO
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.