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Texas Instruments TUSB320LIRWBR
- Part No.:
- TUSB320LIRWBR
- Manufacturer:
- Texas Instruments
- Category:
- Power Management - Specialized
- Package:
- 12-XFQFN
- Datasheet:
-
TUSB320LIRWBR.pdf
- Description:
- USB TYPE-C CC LOGIC AND PORT CON
- Quantity:
- Payment:
- Shipping:
Inventory:4,289
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Product details
Overview
TUSB320LIRWBR from Texas Instruments is a USB Type-C™ Configuration Channel (CC) logic and port controller IC designed for role detection, cable orientation sensing, current mode advertisement (default/1.5 A/3 A), and VBUS detection in DFP/UFP/DRP applications. It operates from 2.7 V to 5 V, supports I2C or GPIO control, and features tri-level PORT/ADDR inputs for flexible mode configuration. Used in mobile phones, tablets, and notebooks to enable compliant USB-C connectivity.
For engineers reviewing the TUSB320LIRWBR datasheet, TUSB320LIRWBR pinout, TUSB320LIRWBR application, or TUSB320LIRWBR equivalent, key selection considerations include CC pin voltage thresholds (e.g., VTH_UFP_CC_HIGH = 1.23 V typ), VBUS_DET threshold (3.30 V typ), DRP toggle timing (75 ms typ), I2C soft reset duration (49 ms typ), and industrial temperature range (–40°C to 85°C).
Technical Context
The TUSB320LIRWBR implements USB Type-C Specification 1.1 CC logic with dual CC1/CC2 I/O pins for attach/detach, orientation, and role detection. Its internal pulldown (RCC_D = 5.1 kΩ typ) and pullup (ICC_HIGH_P = 330 µA typ) resistors comply with USB-C current mode requirements. The device samples PORT and ADDR at power-on or after I2C_SOFT_RESET to configure DFP/UFP/DRP behavior.
VBUS detection uses an external 887 kΩ resistor between system VBUS and VBUS_DET pin, with internal 95 kΩ pulldown and 3.30 V threshold. In I2C mode (ADDR = H/L), it supports 400 kHz clock, register-based CURRENT_MODE_ADVERTISE and SOURCE_PREF control, and interrupt-driven status reporting via INT_N/OUT3.
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 system rails without level-shifting. |
| Operating Temperature | –40°C to +85°C - Qualified for industrial environments including mobile and embedded host systems. |
| CC Pin Thresholds | VTH_UFP_CC_HIGH = 1.23 V typ - Accurately detects 3 A DFP source capability when configured as UFP. |
| VBUS Detection | VBUS_THR = 3.30 V typ - Ensures reliable UFP attachment confirmation before enabling power path. |
| DRP Toggle Period | tDRP = 75 ms typ - Balances fast role negotiation with stable CC line settling during dual-role operation. |
| I2C Timing | fSCL = 400 kHz - Supports standard-mode I2C for register access without requiring high-speed peripherals. |
| Current Consumption | IACTIVE_UFP = 100 µA typ - Minimizes standby power in battery-powered UFP devices like portable accessories. |
Pinout & Package
The TUSB320LIRWBR is housed in a 12-pin X2QFN (RWB) package measuring 1.60 mm × 1.60 mm with 0.4 mm pitch and wettable flank leads for automated optical inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CC1 / CC2 | Configuration Channel I/O | Dual bidirectional pins for USB-C cable orientation, attach/detach, and role detection per USB Type-C Spec 1.1. |
| PORT | Tri-level Mode Select Input | H = DFP (source), L = UFP (sink), NC = DRP - sampled at power-on or after reset to lock port role. |
| ADDR | Tri-level I2C/GPIO Config Input | H = I2C addr 0x67, L = I2C addr 0x47, NC = GPIO mode - disables I2C bus if left floating. |
| INT_N/OUT3 | Open-Drain Interrupt or Audio Detect Output | In I2C mode: active-low interrupt on register change; in GPIO mode: audio accessory detect (L = detected). |
| SDA/OUT1 & SCL/OUT2 | Dual-function I2C Data/Clock or Current Mode Outputs | In GPIO mode: open-drain outputs indicating detected current mode (e.g., OUT1 = H/H/L for default/medium/high). |
| VBUS_DET | High-Voltage Input (5–28 V) | Monitors system VBUS via external 887 kΩ resistor; triggers UFP attachment only after debounce and threshold crossing. |
| EN_N | Active-Low Enable Input | Must be held low ≥50 ms after VDD stabilization to activate device - internal 1.1 MΩ pullup ensures safe default disable. |
| ID | Open-Drain Attachment Indicator | Asserted low when CC pins detect device attachment in DFP or DRP-as-source mode - used for system wake-up signaling. |
Key Features
| Feature | Design Value |
|---|---|
| USB Type-C 1.1 Compliance | Fully implements CC logic for attach/detach, orientation, role, and current mode per spec - no firmware required. |
| DRP with Try.SRC/Try.SNK | I2C-configurable preference for DFP or UFP role when connecting to another DRP - resolves role ambiguity in dual-role systems. |
| Flexible Control Interface | Supports either I2C (two addresses: 0x47/0x67) or GPIO-only mode - eliminates MCU dependency in simple sink applications. |
| 3 A Current Advertisement | ICC_HIGH_P = 330 µA typ enables 3 A sourcing when VDD ≥ 3.5 V - meets USB-C high-power charging requirements. |
| Low-Power Operation | 100 µA active current in UFP mode - extends battery life in portable accessories and wearables. |
| VBUS-Safe Detection | VBUS_DET input rated to 28 V with internal 95 kΩ pulldown - allows direct connection to system VBUS without external protection. |
Applications
| Mobile Phone Charging Port | Tablet Dual-Role Docking |
|---|---|
|
Use Scenario: Smartphone acts as UFP to receive up to 3 A charging from a USB-C wall adapter or laptop. IC Role / Device Role / Timing Role: TUSB320LIRWBR performs CC line monitoring, VBUS validation, and current mode detection before enabling power delivery path. Use Value: Enables safe, specification-compliant 3 A charging using only hardware logic - no MCU intervention needed for basic sink functionality. |
Use Scenario: Tablet connects to a USB-C dock supporting data, video, and power delivery simultaneously. IC Role / Device Role / Timing Role: TUSB320LIRWBR configures as DRP with Try.SNK enabled to consistently act as UFP for power while negotiating DFP roles for data/video. Use Value: Resolves role conflict with dock by forcing UFP behavior for power, ensuring stable 5 V/3 A input regardless of dock's DRP state. |
| Notebook Host Controller Interface | USB-C Peripheral Adapter |
|
Use Scenario: Laptop functions as DFP to supply power and enumerate peripherals like external SSDs or monitors. IC Role / Device Role / Timing Role: TUSB320LIRWBR advertises default or 3 A current via CC pullup, detects UFP attachment, and signals ID pin for system wake-up. Use Value: Provides hardware-based Type-C port control with <100 µA quiescent current - reduces host CPU load and improves power efficiency. |
Use Scenario: USB-C to legacy USB-A or HDMI adapter requires cable orientation detection and role negotiation. IC Role / Device Role / Timing Role: TUSB320LIRWBR identifies plug orientation and reports attachment status via INT_N/OUT3 to adapter MCU. Use Value: Eliminates need for complex orientation-switching circuitry - simplifies PCB layout and lowers BOM cost in compact adapters. |
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; requires external MCU for PD policy engine; 10-pin QFN. | Required for USB Power Delivery negotiation beyond basic CC logic; not drop-in for pure Type-C role detection. | Select FUSB302BMPX only if USB PD 2.0/3.0 compliance and variable voltage negotiation are needed. |
| TUSB320HIRWBR | Pin-compatible active-high enable (EN) variant; identical electrical specs, package, and feature set except EN polarity. | Direct replacement where system GPIO drives enable signal high-active; no changes to CC, VBUS, or I2C circuitry required. | Choose TUSB320HIRWBR when existing design uses active-high enable control - same footprint and firmware compatibility. |
Compared with TUSB320LIRWBR, FUSB302BMPX adds USB PD PHY but increases system complexity and cost, while TUSB320HIRWBR offers identical functionality with inverted enable polarity - making it the only true hardware-compatible alternative for EN signal redesign.
Availability
TUSB320LIRWBR is available at Aetrix Electronics and suitable for mobile phone charging ports, tablet docking interfaces, notebook host controllers, and USB-C peripheral adapters requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for TUSB320LIRWBR 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 leadership in USB interface solutions and industrial-grade ICs.
The TUSB320 family is designed specifically for USB Type-C ecosystem implementation - delivering hardware-based CC logic, role control, and current mode detection without firmware overhead for host, device, and dual-role applications.
FAQ
What is the function of the PORT pin on the TUSB320LIRWBR?
The PORT pin is a tri-level input that configures the TUSB320LIRWBR's operational mode at power-on or after reset: pulled high to VDD selects DFP (source), pulled low to GND selects UFP (sink), and left unconnected configures DRP (dual-role). This pin directly determines how the device presents pullup/pulldown resistors on CC1/CC2 and handles VBUS detection - no software configuration is needed for basic mode selection.
How does the TUSB320LIRWBR detect 3 A current capability from a connected DFP?
The TUSB320LIRWBR detects 3 A capability by measuring the voltage on CC1 or CC2 against the VTH_UFP_CC_HIGH threshold (1.23 V typical). When a DFP applies its 3 A pullup current (330 µA) through the cable, the resulting voltage at the TUSB320LIRWBR's CC pin exceeds this threshold, triggering recognition of high-current mode. This detection occurs in UFP or DRP-as-sink states and is reported via I2C registers or GPIO outputs SDA/OUT1 and SCL/OUT2.
What external components are required for VBUS detection on the TUSB320LIRWBR?
A single 887 kΩ ±1% resistor is required between the system VBUS rail and the VBUS_DET pin of the TUSB320LIRWBR. This resistor forms a voltage divider with the device's internal 95 kΩ pulldown, ensuring the input sees a valid voltage within the 2.95–3.80 V threshold window when VBUS is present. No additional capacitors, diodes, or regulators are needed - the TUSB320LIRWBR handles debounce and threshold validation internally.
Can the TUSB320LIRWBR operate in I2C mode and GPIO mode simultaneously?
No, the TUSB320LIRWBR operates exclusively in one control mode at a time, determined by the ADDR pin state: ADDR = high or low enables I2C mode with fixed 7-bit addresses (0x67 or 0x47), while ADDR = unconnected (NC) disables I2C and activates GPIO mode. In GPIO mode, SDA/OUT1 and SCL/OUT2 become open-drain outputs reflecting current mode, and INT_N/OUT3 indicates audio accessory presence - all without I2C traffic.
What is the minimum VDD voltage required to advertise 3 A current using the TUSB320LIRWBR?
The TUSB320LIRWBR requires VDD ≥ 3.5 V to reliably advertise 3 A current in DFP or DRP-as-source mode. This requirement ensures sufficient headroom for the internal current source (ICC_HIGH_P = 330 µA typ) to drive the CC line to specification-compliant voltage levels. At VDD < 3.5 V, the device defaults to medium (1.5 A) or default (500 mA) current advertisement - a hardware-enforced safety limit documented in Section 6.5 of the datasheet.
TUSB320LIRWBR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 12-XFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- USB, Type-C Configuration
- Current - Supply:
- -
- Voltage - Supply:
- 2.7V ~ 5V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-X2QFN (1.6x1.6)
TUSB320LIRWBR FAQ
1.How can I place an order for TUSB320LIRWBR through Aetrix?
Please submit a Request for Quotation (RFQ) for TUSB320LIRWBR 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 TUSB320LIRWBR reliable?
The price and inventory of TUSB320LIRWBR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TUSB320LIRWBR is usually 5 days.
3.What payment methods are accepted for TUSB320LIRWBR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TUSB320LIRWBR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TUSB320LIRWBR?
TUSB320LIRWBR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TUSB320LIRWBR 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 TUSB320LIRWBR?
For technical support, including TUSB320LIRWBR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TUSB320LIRWBR requirements.
6.How does Aetrix verify that TUSB320LIRWBR is sourced from the original manufacturer or authorized distributors?
All TUSB320LIRWBR 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 TUSB320LIRWBR meets industry standards.
7.What is the process for return or replacement of TUSB320LIRWBR?
All TUSB320LIRWBR units undergo pre-shipment inspection (PSI). If there is an issue with TUSB320LIRWBR, 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 TUSB320LIRWBR part is unused and in its original packaging.
Return procedure for TUSB320LIRWBR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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