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Texas Instruments TUSB320IRWBR
- Part No.:
- TUSB320IRWBR
- Manufacturer:
- Texas Instruments
- Category:
- Specialized
- Package:
- 12-XFQFN
- Datasheet:
-
TUSB320IRWBR.pdf
- Description:
- IC INTERFACE SPECIALIZED 12X2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:34,522
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Product details
Overview
TUSB320IRWBR from Texas Instruments is a USB Type-C™ Configuration Channel (CC) logic IC for port role detection, cable orientation sensing, and current mode advertisement in DFP/UFP/DRP applications. It supports up to 3 A current detection, operates from 2.7 V to 5 V, features I²C or GPIO control, and functions across –40°C to 85°C for industrial USB 2.0 host/device implementations.
For engineers reviewing the TUSB320IRWBR datasheet, TUSB320IRWBR pinout, TUSB320IRWBR application, or TUSB320IRWBR equivalent, key selection criteria include CC pin voltage thresholds (VTH_DFP_CC_HIGH = 2.46–2.74 V), VBUS_DET input range (2.95–3.80 V), tri-level PORT/ADDR pin configuration, and dual-mode operation (I²C vs. GPIO) for USB Type-C role negotiation in mobile and embedded systems.
Technical Context
The TUSB320IRWBR implements dedicated hardware CC logic that monitors CC1/CC2 pins for pull-up/pull-down resistances to determine attach/detach, cable flip orientation, and port role (DFP/UFP/DRP). Its internal digital controller samples PORT pin state at power-on to lock mode and supports dynamic current mode updates via I²C registers.
VBUS detection uses an external 900-kΩ resistor between system VBUS and VBUS_DET pin with a 2.95–3.80 V threshold; debounce time is fixed at 2 ms. In DRP mode, it alternates DFP/UFP advertisement every 50–100 ms with configurable duty cycle, while UFP mode requires VBUS confirmation before asserting attachment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.7 V to 5 V - enables direct integration with 3.3 V or 5 V USB system rails without LDO |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded and portable electronics |
| Current Detection Range | Default (500/900 mA), Medium (1.5 A), High (3 A) - matches USB Type-C specification 1.1 sink capability tiers |
| VBUS Threshold | 2.95–3.80 V - ensures reliable UFP attachment detection across 4–28 V system VBUS |
| I²C Clock Frequency | 400 kHz - supports fast register access for real-time current mode monitoring and soft reset |
| CC Pin Input Thresholds | VTH_DFP_CC_HIGH = 2.46–2.74 V - defines high-current (3 A) source detection window for robust role negotiation |
| Quiescent Current | 100 µA in active UFP mode - minimizes battery drain in always-on USB peripheral detection |
Pinout & Package
Package: X2QFN-12 (1.60 mm × 1.60 mm, 0.4 mm pitch, wettable flank), thermally enhanced for compact USB-C port designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CC1, CC2 | Configuration Channel I/O | Dual bidirectional pins for USB Type-C cable orientation, attach/detach, and role detection per spec |
| PORT | Tri-level mode select input | H = DFP (source), L = UFP (sink), NC = DRP - sampled once at power-on to fix port role |
| ADDR | Tri-level I²C/GPIO mode select | H = I²C addr 0x61, L = I²C addr 0x60, NC = GPIO mode - disables I²C bus when floating |
| INT_N/OUT3 | Open-drain interrupt/output | I²C mode: active-low interrupt on register change; GPIO mode: audio accessory detect (L = detected) |
| SDA/OUT1, SCL/OUT2 | Dual-function I²C/data pins | I²C mode: standard data/clock; GPIO mode: open-drain outputs indicating detected current mode (UFP only) |
| ID | Open-drain attachment indicator | Asserted low when CC detects device attachment in DFP or DRP-as-source mode |
| VBUS_DET | VBUS sense input | Accepts 4–28 V system VBUS via 900-kΩ external resistor; triggers UFP attachment confirmation |
| EN_N | Active-low enable | Internal 1.1 MΩ pullup; must be held high ≥50 ms after VDD ramp for valid initialization |
Key Features
| Feature | Design Value |
|---|---|
| USB Type-C 1.1 compliance | Fully implements CC logic per spec including cable flip detection, role negotiation, and current mode signaling |
| Tri-level PORT pin configuration | Single-pin hardware mode selection (DFP/UFP/DRP) eliminates firmware dependency for basic port role setup |
| VBUS detection with debounce | 2 ms fixed debounce on VBUS_DET pin prevents false UFP attachment during transient VBUS rise/fall |
| I²C and GPIO dual-control interface | Enables flexible system integration: I²C for full register access, GPIO for simple current mode readout in UFP |
| Industrial temperature support | –40°C to +85°C operation validated for automotive infotainment, industrial tablets, and ruggedized peripherals |
| Low-power unattached mode | 100 µA quiescent current in UFP wait state extends battery life in portable USB-C accessories |
Applications
| Mobile Phone Charging Port | Tablet Dual-Role Docking Interface |
|---|---|
|
Use Scenario: Smartphone acts as UFP when connected to wall charger or laptop, and as DFP when powering accessories like headphones or flash drives. IC Role / Device Role / Timing Role: TUSB320IRWBR performs real-time CC pin monitoring to auto-detect cable insertion, orientation, and source/sink role - enabling seamless plug-and-play without user intervention. Use Value: Eliminates need for microcontroller-based USB-C negotiation firmware; reduces BOM count and boot-time latency for charging and data transfer initiation. |
Use Scenario: Tablet connects to USB-C dock supporting video output, Ethernet, and peripheral expansion while simultaneously charging. IC Role / Device Role / Timing Role: TUSB320IRWBR operates in DRP mode, toggling between DFP and UFP roles every 50–100 ms to negotiate optimal power delivery and data path direction. Use Value: Enables single-port multi-functionality without mechanical switches or complex software arbitration - critical for thin-profile tablet form factors. |
| Notebook USB-C Peripheral Hub | Industrial USB-C Sensor Gateway |
|
Use Scenario: Laptop hub accepts USB-C upstream connection and provides downstream USB-A, HDMI, and SD card slots. IC Role / Device Role / Timing Role: TUSB320IRWBR configured as DFP identifies attached host, confirms VBUS presence, and advertises 3 A current capability using ICC_HIGH_P = 304–356 µA pullup. Use Value: Ensures stable 15 W power delivery to hub ICs and prevents brown-out during simultaneous peripheral enumeration. |
Use Scenario: Ruggedized gateway connects field sensors via USB-C to PLC or edge controller in factory automation. IC Role / Device Role / Timing Role: TUSB320IRWBR in UFP mode detects legacy adapters and audio accessories while maintaining –40°C to +85°C operational reliability. Use Value: Supports mixed-cable environments (Type-C, legacy USB-A-to-C, audio dongles) without requiring thermal derating or external supervision. |
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 via integrated PD PHY; higher pin count (16-pin QFN); requires external PD policy engine | Required for USB Power Delivery negotiation beyond basic CC logic; not drop-in for pure Type-C role detection | Choose FUSB302BMPX only if PD messaging (e.g., 20 V/5 A contracts) is needed - adds complexity and cost over TUSB320IRWBR's simpler CC-only function |
| TUSB320HDBVR | Same die, commercial temp range (0°C to 70°C); identical pinout, electrical specs, and register map | Limited to non-industrial environments; unsuitable for extended temperature deployments | Select TUSB320HDBVR only for cost-sensitive consumer devices where ambient operating temperature stays within 0–70°C |
Compared with FUSB302BMPX and TUSB320HDBVR, the TUSB320IRWBR delivers verified industrial temperature operation and minimal external component count for basic USB Type-C role and current mode detection - making it optimal for cost-constrained, thermally demanding embedded USB-C ports without Power Delivery requirements.
Availability
TUSB320IRWBR is available at Aetrix Electronics and suitable for mobile phone charging ports, tablet docking interfaces, notebook peripheral hubs, industrial sensor gateways, and USB-C accessory detection requiring stable component supply and long-term industrial temperature support.
Supply support for TUSB320IRWBR 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 over 50 years of innovation in power management and interface solutions.
The TUSB320IRWBR belongs to TI's USB Type-C port controller product line, designed specifically to simplify USB-C ecosystem adoption in resource-constrained embedded systems by offloading CC logic from main processors.
FAQ
What is the primary function of the TUSB320IRWBR in a USB Type-C design?
The TUSB320IRWBR serves as a dedicated Configuration Channel (CC) logic IC that handles USB Type-C port attach/detach detection, cable orientation identification, role determination (DFP/UFP/DRP), and Type-C current mode advertisement (default/1.5 A/3 A). It replaces software-based negotiation, reducing MCU load and ensuring spec-compliant behavior without requiring a full USB PD stack. The TUSB320IRWBR executes these functions autonomously using hardware CC logic and tri-level pin configuration.
How does the TUSB320IRWBR support dual-role port (DRP) functionality?
The TUSB320IRWBR supports DRP mode when the PORT pin is left unconnected (NC). In this configuration, it automatically toggles between DFP and UFP states every 50–100 ms, advertising its role on CC1/CC2 accordingly. During DFP intervals, it presents Rp; during UFP intervals, it monitors Rd. VBUS detection confirms successful UFP attachment, and the DRP duty cycle can be adjusted via I²C register. This enables true plug-and-play dual-role behavior in devices like tablets and laptops without external arbitration logic.
Can the TUSB320IRWBR detect audio accessories, and how is this implemented?
Yes, the TUSB320IRWBR supports passive and charge-through audio adapters in DFP and DRP modes. Audio accessory detection is implemented either via I²C register reads (AUDIO_ACCESSORY bit in STATUS register) or through GPIO mode using the INT_N/OUT3 pin - which asserts low when an audio accessory is connected. This dual-path implementation allows simple firmware polling or interrupt-driven detection depending on system architecture, and is fully compliant with USB Type-C Audio Adapter Accessory Mode specifications.
What are the key differences between TUSB320IRWBR and TUSB320HDBVR?
The TUSB320IRWBR and TUSB320HDBVR share identical functionality, pinout, and electrical specifications, but differ in temperature rating: TUSB320IRWBR is rated for –40°C to +85°C (industrial), while TUSB320HDBVR is rated for 0°C to +70°C (commercial). Both use the same X2QFN-12 package and support identical I²C/GPIO modes. The TUSB320IRWBR is the appropriate choice for automotive, industrial, or outdoor applications where extended temperature operation is required - the TUSB320IRWBR ensures reliability where the TUSB320HDBVR would fail.
Does the TUSB320IRWBR require external components for basic USB Type-C operation?
Yes, the TUSB320IRWBR requires three key external components for baseline operation: a 900-kΩ ±1% resistor between system VBUS and the VBUS_DET pin for VBUS sensing; pull-up/pull-down resistors on PORT and ADDR pins to set mode (e.g., 4.7 kΩ pullup for DFP, 10 kΩ pulldown for UFP); and external pullups (typically 2.2–10 kΩ) on SDA/OUT1 and SCL/OUT2 for I²C operation. No external crystal or timing components are needed - all CC timing, debounce, and state machines are fully integrated within the TUSB320IRWBR.
TUSB320IRWBR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 12-XFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- USB
- Interface:
- I2C
- Voltage - Supply:
- 2.7V ~ 5V
- Supplier Device Package:
- 12-X2QFN (1.6x1.6)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
TUSB320IRWBR FAQ
1.How can I place an order for TUSB320IRWBR through Aetrix?
Please submit a Request for Quotation (RFQ) for TUSB320IRWBR 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 TUSB320IRWBR reliable?
The price and inventory of TUSB320IRWBR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TUSB320IRWBR is usually 5 days.
3.What payment methods are accepted for TUSB320IRWBR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TUSB320IRWBR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TUSB320IRWBR?
TUSB320IRWBR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TUSB320IRWBR 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 TUSB320IRWBR?
For technical support, including TUSB320IRWBR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TUSB320IRWBR requirements.
6.How does Aetrix verify that TUSB320IRWBR is sourced from the original manufacturer or authorized distributors?
All TUSB320IRWBR 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 TUSB320IRWBR meets industry standards.
7.What is the process for return or replacement of TUSB320IRWBR?
All TUSB320IRWBR units undergo pre-shipment inspection (PSI). If there is an issue with TUSB320IRWBR, 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 TUSB320IRWBR part is unused and in its original packaging.
Return procedure for TUSB320IRWBR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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