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Texas Instruments TUSB322IRWBR
- Part No.:
- TUSB322IRWBR
- Manufacturer:
- Texas Instruments
- Category:
- Specialized
- Package:
- 12-XFQFN
- Datasheet:
-
TUSB322IRWBR.pdf
- Description:
- IC INTERFACE SPECIALIZED 12X2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:9,998
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Product details
Overview
TUSB322IRWBR from Texas Instruments is a USB Type-C™ Configuration Channel (CC) logic and port control IC with integrated VCONN power switch, supporting DFP/Source, UFP/Sink, and DRP operation via I2C or GPIO interface. It delivers 3 A current advertisement/detection, cable orientation sensing, role detection, and VBUS monitoring across 4.5–5.5 V supply, operating in –40°C to +85°C industrial temperature range for mobile phone and notebook USB-C port implementation.
For engineers reviewing the TUSB322IRWBR datasheet, TUSB322IRWBR pinout, TUSB322IRWBR application, or TUSB322IRWBR equivalent, key selection considerations include CC1/CC2 voltage threshold accuracy (±0.05 V), VCONN FET on-resistance (1.25 Ω), I2C timing compliance (400 kHz), DIR pin open-drain output behavior, and dual-mode (I2C/GPIO) configurability for USB-C port control in space-constrained designs.
Technical Context
The TUSB322IRWBR implements full USB Type-C Specification 1.1 CC logic including attach/detach detection, plug orientation determination via DIR pin, and role negotiation between DFP/UFP/DRP states. Its internal CC pullup/pulldown resistors (5.1 kΩ Rd, 80 µA Rp typ) and precise voltage thresholds (e.g., VTH_DFP_CC_HIGH = 2.6 V ±0.14 V) enable reliable current mode identification (default/1.5 A/3 A) without external components.
VCONN sourcing is controlled by an internal 1.25 Ω FET with 300 mA current limit and 5.5 V tolerance, activated only upon active cable detection. The device supports both I2C (address 0x47/0x67) and tri-level GPIO configuration modes, with dedicated open-drain outputs (ID, DIR, INT_N/OUT3) for system-level signaling and audio accessory detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - Enables direct connection to standard 5 V USB power rails without LDO. |
| Operating Temperature | –40°C to +85°C - Qualified for industrial and consumer portable electronics environments. |
| Current Advertisement | Up to 3 A - Supports high-power USB-C charging via programmable Rp values (330 µA typ at 3 A). |
| VCONN Output | 4.75–5.5 V, 300 mA max - Powers active cables with integrated e-markers or signal repeaters. |
| I2C Interface | 400 kHz Fast Mode - Compatible with standard microcontroller I2C peripherals; supports dual addresses (0x47/0x67). |
| CC Pin Thresholds | VUFP_CC_HIGH = 1.31–2.04 V - Enables unambiguous 3 A sink detection under varying PCB trace impedance. |
| Shutdown Current | 0.04 µA - Minimizes battery drain in always-on USB-C ports during system sleep. |
Pinout & Package
Package: X2QFN-12 (1.60 mm × 1.60 mm, 0.4 mm pitch, wettable flank). Compact footprint enables placement adjacent to USB-C receptacle with minimal board area.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CC1 / CC2 | Configuration Channel I/O | Dual bidirectional pins for USB-C plug detection, orientation sensing, and role negotiation per spec. |
| VBUS_DET | Analog Input | Monitors system VBUS (4–28 V) via 900 kΩ external resistor; triggers attach confirmation in UFP/DRP modes. |
| DIR | Open-Drain Output | Indicates cable orientation: logic low = Type-C plug position 1; high = position 2 - drives USB3.1 mux direction control. |
| ADDR | Tri-Level Input | Selects I2C address (0x47/0x67) or disables I2C for GPIO-only operation (NC = GPIO mode). |
| INT_N/OUT3 | Configurable Open-Drain | In I2C mode: active-low interrupt on register change; in GPIO mode: audio accessory detect (low = detected). |
| SDA/OUT1 & SCL/OUT2 | Dual-Function I/O | I2C data/clock when ADDR ≠ NC; GPIO outputs indicating current mode (default/medium/high) in UFP mode. |
| ID | Open-Drain Output | Asserted low when port acts as DFP or DRP-in-source-mode - signals host attachment to system controller. |
| EN_N | Active-Low Enable | Hardware reset and power gating control; internal 1.1 MΩ pull-up ensures default enable if left floating. |
Key Features
| Feature | Design Value |
|---|---|
| USB Type-C 1.1 Compliance | Fully implements CC logic per spec - includes Try.SRC/Try.SNK DRP enhancements and legacy adapter support. |
| VCONN Power Switch | Integrated 1.25 Ω FET with 300 mA current limit - eliminates need for external VCONN regulator in active-cable applications. |
| Dual Control Interface | I2C (flexible register programming) or GPIO (pin-strapped simplicity) - supports both complex host control and cost-sensitive embedded designs. |
| Cable Orientation Detection | Dedicated DIR pin with open-drain output - directly controls USB3.1 SuperSpeed mux direction without software intervention. |
| Audio Accessory Support | Detects passive and charge-through adapters via CC pin resistance analysis - enables headset jack emulation in smartphones/tablets. |
Applications
| Mobile Phone USB-C Port | Notebook DRP Implementation |
|---|---|
Use Scenario: Smartphones requiring reversible USB-C connector with fast-charge negotiation and audio accessory support. IC Role / Device Role / Timing Role: TUSB322IRWBR performs CC logic, VBUS detection, and VCONN sourcing while managing DFP/UFP role switching during cable insertion/removal. Use Value: Enables single-chip USB-C port control with <100 ms attach detection latency and 3 A charging capability without external resistors or regulators. | Use Scenario: Ultrabooks implementing dual-role USB-C ports for display/video alternate mode and power delivery negotiation. IC Role / Device Role / Timing Role: TUSB322IRWBR acts as DRP controller, detecting cable orientation (DIR), advertising current mode, and asserting ID pin to trigger system-level policy engine. Use Value: Provides deterministic Try.SRC behavior for consistent host-role assignment when connecting to tablets or peripherals, reducing enumeration failures. |
| USB-C Peripheral Hub | Tablet Charging Port |
Use Scenario: Multi-port USB-C hubs needing robust cable detection, VCONN support for active cables, and I2C-based firmware control. IC Role / Device Role / Timing Role: TUSB322IRWBR serves as upstream-facing port (UFP) with VBUS monitoring and current mode reporting via I2C CURRENT_MODE_DETECT register. Use Value: Delivers accurate 500 mA/1.5 A/3 A sink detection using factory-trimmed CC thresholds - eliminates calibration overhead in production test. | Use Scenario: Tablets requiring compact, low-power USB-C charging input with audio accessory detection for wired headsets. IC Role / Device Role / Timing Role: TUSB322IRWBR operates in UFP mode with GPIO-based audio detection (OUT3 low = accessory present) and VBUS_THR = 3.3 V ±0.35 V validation. Use Value: Reduces BOM count by integrating CC logic, VBUS sense, and audio detect into one 1.6 mm × 1.6 mm package - saves >1.2 mm² PCB area vs discrete solution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB Type-C configuration channel logic applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| FUSB302BMPX | Supports USB PD communication over CC lines; lacks integrated VCONN switch; requires external VCONN FET. | Better suited for PD-enabled systems requiring e-marker or alternate mode negotiation. | Choose FUSB302BMPX when USB Power Delivery protocol stack integration is required beyond basic CC logic. |
| TPS65987D | Full USB PD controller with integrated buck-boost converter, 3.3 V LDO, and hardware PD state machine - significantly higher integration and cost. | Targeted at high-end laptops and docks needing full PD 3.0 compliance and power contract negotiation. | Select TPS65987D only when native PD contract handling, VBUS path control, and multi-rail power management are mandatory. |
Compared with FUSB302BMPX and TPS65987D, the TUSB322IRWBR provides optimal balance of USB-C CC functionality, VCONN integration, and GPIO/I2C flexibility for non-PD applications - delivering lower system cost and smaller footprint where PD communication is unnecessary.
Availability
TUSB322IRWBR is available at Aetrix Electronics and suitable for mobile phones, notebooks, USB peripherals, and tablet charging ports requiring stable component supply and industrial temperature performance.
Supply support for TUSB322IRWBR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor company specializing in analog, embedded processing, and connectivity technologies with broad industrial and consumer design expertise.
The TUSB322IRWBR belongs to TI's USB Type-C interface product line, engineered specifically to simplify USB-C port implementation in space-constrained, cost-sensitive portable devices without requiring full USB Power Delivery capability.
FAQ
What is the primary function of the TUSB322IRWBR in a USB-C system?
The TUSB322IRWBR serves as a dedicated USB Type-C Configuration Channel (CC) logic controller that handles port attach/detach detection, cable orientation sensing, role determination (DFP/UFP/DRP), current mode advertisement (up to 3 A), and VCONN power switching. It enables compliant USB-C port implementation without requiring a full USB Power Delivery controller, making it ideal for cost-optimized mobile and portable designs where PD negotiation is not needed. The TUSB322IRWBR integrates all essential CC functions into a single 1.6 mm × 1.6 mm X2QFN package.
Does the TUSB322IRWBR support USB Power Delivery (PD) communication?
No, the TUSB322IRWBR does not support USB Power Delivery (PD) communication over the CC lines. It implements only the base USB Type-C Specification 1.1 CC logic for role detection, current mode advertisement, and cable orientation - but explicitly excludes PD features such as e-marking, alternate mode negotiation, or structured VDM messaging. For PD-capable systems, designers must select a dedicated PD controller like the TPS65987D or FUSB302BMPX. The TUSB322IRWBR remains fully compatible with PD sources/sinks as a passive CC partner.
How does the TUSB322IRWBR handle VCONN power delivery for active cables?
The TUSB322IRWBR integrates a dedicated VCONN power switch with 1.25 Ω on-resistance, 5.5 V tolerance, and 300 mA current limit. It automatically activates VCONN on the CC pin detecting Ra (resistor for active cable) only after successful DFP attachment and orientation determination. This eliminates the need for external VCONN regulation circuitry. The device monitors VCONN voltage and disconnects the FET if current exceeds 300 mA, protecting against short circuits. VCONN is supplied from the same VDD rail (4.75–5.5 V), simplifying power domain design.
Can the TUSB322IRWBR operate in both I2C and GPIO modes simultaneously?
No, the TUSB322IRWBR operates exclusively in either I2C mode or GPIO mode, selected by the ADDR pin state. When ADDR is pulled high or low, I2C mode is enabled with addresses 0x67 or 0x47 respectively; when ADDR is left unconnected (NC), GPIO mode activates with SDA/OUT1, SCL/OUT2, and INT_N/OUT3 functioning as status outputs for current mode and audio detection. The two modes are mutually exclusive - mixing I2C register access with GPIO output behavior is not supported. Mode selection is fixed at power-up and cannot be dynamically switched during operation.
What are the key thermal characteristics of the TUSB322IRWBR package?
The TUSB322IRWBR uses a 12-pin X2QFN (RWB) package with 1.60 mm × 1.60 mm body size and wettable flanks. Its thermal metrics include a junction-to-ambient resistance (RθJA) of 169.3°C/W and junction-to-board resistance (RθJB) of 83.4°C/W, enabling operation up to +85°C ambient without forced airflow. The package supports reflow soldering per JEDEC J-STD-020, and its low thermal mass allows rapid heat dissipation through the exposed thermal pad to the PCB ground plane. These characteristics ensure reliable performance in thermally constrained mobile enclosures where the TUSB322IRWBR is typically placed adjacent to the USB-C receptacle.
TUSB322IRWBR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 12-XFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- USB
- Interface:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Supplier Device Package:
- 12-X2QFN (1.6x1.6)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
TUSB322IRWBR FAQ
1.How can I place an order for TUSB322IRWBR through Aetrix?
Please submit a Request for Quotation (RFQ) for TUSB322IRWBR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TUSB322IRWBR reliable?
The price and inventory of TUSB322IRWBR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TUSB322IRWBR is usually 5 days.
3.What payment methods are accepted for TUSB322IRWBR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TUSB322IRWBR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TUSB322IRWBR?
TUSB322IRWBR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TUSB322IRWBR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TUSB322IRWBR?
For technical support, including TUSB322IRWBR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TUSB322IRWBR requirements.
6.How does Aetrix verify that TUSB322IRWBR is sourced from the original manufacturer or authorized distributors?
All TUSB322IRWBR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TUSB322IRWBR meets industry standards.
7.What is the process for return or replacement of TUSB322IRWBR?
All TUSB322IRWBR units undergo pre-shipment inspection (PSI). If there is an issue with TUSB322IRWBR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TUSB322IRWBR part is unused and in its original packaging.
Return procedure for TUSB322IRWBR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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