TUSB320LI USB Type-C Configuration Channel Logic and Port Control | TI.com

TUSB320LI (ACTIVE) USB Type-C Configuration Channel Logic and Port Control


Recommended alternative parts

  • TUSB320LAI  - The device has the SAME FUNCTIONALITY and PINOUT as the compared device but is NOT an exact equivalent.   Latest generation incorporating Type-C 1.1 features. The TUSB320HI/LI is not recommended for DFP or DRP configurations.


The TUSB320LI and TUSB320HI devices (remainder of this document called TUSB320 unless otherwise noted) enables USB Type-C ports with the configuration channel (CC) logic needed for Type-C ecosystems. The TUSB320 devices use the CC pins to determine port attach and detach, cable orientation, role detection, and port control for Type-C current mode. The TUSB320 devices can be configured as a downstream facing port (DFP), upstream facing port (UFP) or a dual role port (DRP) making it ideal for any application.

The TUSB320 devices alternate 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. VBUS detection is implemented to determine a successful attach in UFP and DRP modes.

The devices operate over a wide supply range and have low-power consumption. The TUSB320 is available in two versions of enable: Active low enable called TUSB320LI and active high enable called TUSB320HI. The TUSB320 family of devices are available in industrial temperature ranges.


  • 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)
    • Device Only – UFP (Sink)
    • Dual Role Port – DRP
    • Supports both Try.SRC and Try.SNK
  • Channel Configuration (CC)
    • Attach of USB Port Detection
    • Cable Orientation Detection
    • Role Detection
    • Type-C Current Mode (Default, Medium, High)
  • VBUS Detection
  • I2C or GPIO Control
  • Role Configuration Control Through I2C
  • Supply Voltage: 2.7 V to 5 V
  • Low Current Consumption
  • Industrial Temperature Range of –40 to 85°C

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Part number Order Device type Function Alternate mode Power role Data role Internal power path External power path control Iq (Typ) (uA) Realtime VBUS monitoring Dead battery support USB speed (Mbps) Operating temperature range (C) Rating Configuration Package Group
TUSB320LI Order now CC controller     Type-C     No     DRP
5V 3A Source/Sink     GPIO
70     Yes     Yes     480     -40 to 85     Catalog     Active Low Enable
X2QFN | 12