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Texas Instruments TUSB320RWBR
- Part No.:
- TUSB320RWBR
- Manufacturer:
- Texas Instruments
- Category:
- Specialized
- Package:
- 12-XFQFN
- Datasheet:
-
TUSB320RWBR.pdf
- Description:
- IC INTERFACE SPECIALIZED 12X2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,371
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Product details
Overview
TUSB320RWBR from Texas Instruments is a USB Type-C™ Configuration Channel (CC) logic and port control IC designed for role detection, cable orientation sensing, current mode advertisement (default/1.5 A/3 A), and VBUS monitoring in DFP/UFP/DRP applications. It operates from 2.7 V to 5 V, supports I²C or GPIO interface, and delivers industrial-grade reliability across –40°C to 85°C.
For engineers reviewing the TUSB320RWBR datasheet, TUSB320RWBR pinout, TUSB320RWBR application, or TUSB320RWBR equivalent, key selection criteria include CC pin voltage thresholds (VTH_DFP_CC_HIGH = 2.46–2.74 V), tri-level PORT/ADDR pin configuration, VBUS_DET threshold (2.95–3.80 V), and dual-mode operation (I²C/GPIO) with 400 kHz I²C support.
Technical Context
The TUSB320RWBR implements dedicated hardware CC logic that continuously monitors CC1/CC2 for pull-up/pull-down resistances to determine attach/detach, orientation, and role-without host CPU intervention. Its internal digital controller samples PORT and ADDR pins at power-on to lock mode (DFP/UFP/DRP) and address (0x60/0x61), enabling autonomous operation.
VBUS detection uses an integrated comparator with 2.95–3.80 V threshold and 2 ms debounce; CC debouncing is configurable (tCCCB_DEFAULT = 133 ms). The device supports legacy adapters via Rd (5.1 kΩ) and Rp (56 kΩ) compliance, and audio accessory detection via INT_N/OUT3 in GPIO mode.
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 LDO. |
| Operating Temperature | –40°C to +85°C - Qualified for industrial environments including automotive infotainment and ruggedized tablets. |
| CC Detection Thresholds | VTH_DFP_CC_HIGH = 2.46–2.74 V - Ensures reliable 3 A source detection when TUSB320RWBR acts as UFP. |
| VBUS Detection Range | 2.95–3.80 V - Matches USB PD and legacy 5 V VBUS with 900 kΩ external resistor. |
| I²C Clock Frequency | 400 kHz - Supports fast register access for dynamic current mode updates during DRP toggling. |
| Current Consumption | 100 µA in active UFP mode - Minimizes standby power in battery-powered peripherals and mobile accessories. |
| Package | X2QFN-12 (1.6 mm × 1.6 mm) - Ultra-compact footprint ideal for space-constrained USB-C ports on smartphones and dongles. |
Pinout & Package
X2QFN-12 package (1.60 mm × 1.60 mm, 0.4 mm pitch) with wettable flanks for automated optical inspection and robust solder joint reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CC1 / CC2 | Configuration Channel I/O | Dual bidirectional pins for detecting Rp/Rd resistances; determine cable orientation, attach/detach, and role per USB Type-C spec. |
| PORT | Tri-level Mode Select Input | H = DFP, L = UFP, NC = DRP - Sampled at power-on; sets fixed port behavior without runtime reconfiguration. |
| ADDR | Tri-level I²C Address Select | H = 0x61, L = 0x60, NC = GPIO mode - Enables dual-device I²C bus sharing or pin-strapped GPIO-only operation. |
| INT_N/OUT3 | Open-drain Interrupt/Output | In I²C mode: active-low interrupt on register change; in GPIO mode: audio accessory detect (L = detected). |
| SDA/OUT1 & SCL/OUT2 | Dual-function I/O | I²C data/clock when ADDR ≠ NC; open-drain outputs for current mode indication (UFP mode, GPIO only). |
| ID | Attachment Indicator Output | Open-drain output asserted low when CC detects attachment in DFP or DRP-as-source mode. |
| VBUS_DET | Analog VBUS Sense Input | Accepts 5–28 V system VBUS via 900 kΩ resistor; triggers valid attach confirmation after 2 ms debounce. |
| EN_N | Active-low Enable | Internally pulled up; must be held high ≥50 ms after VDD ramp for proper initialization. |
Key Features
| Feature | Design Value |
|---|---|
| Autonomous CC Logic | Hardware-based CC1/CC2 monitoring eliminates MCU polling overhead and ensures sub-100 ms attach response. |
| Tri-level Pin Configuration | Single-pin PORT and ADDR settings enable DFP/UFP/DRP and I²C/GPIO mode selection without external logic or firmware. |
| 3 A Current Advertisement Support | Internal ICC_HIGH_P = 304–356 µA pull-up enables full USB Type-C 3 A sink capability when VDD ≥ 3.5 V. |
| Audio Accessory Detection | Hardware-level audio adapter recognition via INT_N/OUT3 pin (L = passive/charge-through audio accessory attached). |
| Legacy Adapter Compatibility | Supports USB 2.0 Type-C cables, full-featured cables, captive cables, and legacy adapters per USB Type-C 1.1 spec. |
Applications
| Smartphone Charging Port | Tablet Dual-Role Docking |
|---|---|
Use Scenario: Smartphone acting as UFP to negotiate charging current from wall adapter or laptop. IC Role / Device Role / Timing Role: TUSB320RWBR performs UFP role detection, VBUS validation, and 3 A current mode identification via CC pins before enabling power path. Use Value: Enables safe, specification-compliant 3 A charging using only 2 CC pins and one VBUS sense resistor-no additional ADC or GPIO resources required. | Use Scenario: Tablet connects to USB-C dock supporting display, data, and power delivery simultaneously. IC Role / Device Role / Timing Role: TUSB320RWBR operates in DRP mode, toggling between DFP and UFP to establish optimal role based on dock capabilities. Use Value: Achieves <100 ms role negotiation and automatic orientation detection-eliminating user "flip-and-retry" frustration. |
| Notebook Peripheral Hub | USB-C Audio Dongle |
Use Scenario: Compact hub adds USB-A, HDMI, and SD card slots to ultrabook via single USB-C upstream connection. IC Role / Device Role / Timing Role: TUSB320RWBR configured as DFP detects downstream UFP devices and advertises default or 1.5 A current based on system policy. Use Value: Provides guaranteed 1.5 A power delivery to connected peripherals while maintaining full USB 2.0 data bandwidth. | Use Scenario: Passive dongle converts USB-C to 3.5 mm TRRS jack for headphones and microphone. IC Role / Device Role / Timing Role: TUSB320RWBR in DFP mode detects audio accessory via INT_N/OUT3 pin and asserts ID output to enable analog switch path. Use Value: Delivers plug-and-play audio accessory detection without host-side enumeration delay or driver dependency. |
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 BMC; higher pin count (16-pin QFN); requires external VBUS FET control logic. | Required for USB Power Delivery negotiation; not needed for basic CC logic-only designs. | Select FUSB302BMPX only if PD messaging (e.g., voltage scaling, contract negotiation) is mandatory. |
| TPS65987D | Integrated USB PD controller + DC/DC converter; supports 20 V/5 A; includes embedded ARM Cortex-M0+. | Targets full-featured USB-C PD sink/source with programmable power delivery-not suitable for cost-sensitive CC-only use cases. | Choose TPS65987D when combining CC logic, PD policy engine, and power conversion in one chip is required. |
Compared with FUSB302BMPX and TPS65987D, the TUSB320RWBR provides minimal-footprint, low-power, CC-only functionality with zero firmware dependency-ideal for applications where USB PD is unnecessary but strict Type-C 1.1 CC compliance is mandatory.
Availability
TUSB320RWBR is available at Aetrix Electronics and suitable for smartphone charging ports, tablet docking interfaces, notebook peripheral hubs, and USB-C audio dongles requiring stable component supply and industrial temperature operation.
Supply support for TUSB320RWBR 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 leader specializing in analog, embedded processing, and connectivity solutions with over 90 years of innovation in power management and interface ICs.
The TUSB320RWBR belongs to TI's USB Type-C interface product line, engineered specifically to simplify USB-C port implementation by offloading CC logic, role detection, and current mode signaling from the host processor.
FAQ
What is the function of the PORT pin on the TUSB320RWBR?
The PORT pin on the TUSB320RWBR is a tri-level input that configures the device's operational mode at power-on: pulled high to VDD selects Downstream Facing Port (DFP), pulled low to GND selects Upstream Facing Port (UFP), and left unconnected (NC) enables Dual Role Port (DRP) mode. This pin is sampled once during reset and remains latched until the next power cycle or I²C_SOFT_RESET, making TUSB320RWBR suitable for fixed-role or dynamically adaptable USB-C implementations without runtime firmware intervention.
Does the TUSB320RWBR support USB Power Delivery (PD) protocol negotiation?
No, the TUSB320RWBR does not support USB Power Delivery (PD) protocol negotiation. It implements only the USB Type-C Configuration Channel (CC) logic defined in USB Type-C Specification 1.1 for role detection, cable orientation, current mode advertisement (default/1.5 A/3 A), and VBUS monitoring. PD communication requires BMC signaling and a dedicated PD controller such as TI's TPS6598x series or ON Semiconductor's FUSB302 - the TUSB320RWBR is strictly a CC logic companion device.
How does the TUSB320RWBR handle audio accessory detection?
The TUSB320RWBR supports audio accessory detection in DFP and DRP modes through two methods: in GPIO mode (ADDR = NC), the INT_N/OUT3 pin asserts low upon detection; in I²C mode, the AUDIO_ACCESSORY_STATUS bit in the STATUS register indicates presence. This hardware-level detection enables immediate analog switch activation without host enumeration delay, making TUSB320RWBR ideal for USB-C-to-3.5 mm audio dongles and headsets requiring instant plug-and-play functionality.
What is the minimum VDD requirement to advertise 3 A current with the TUSB320RWBR?
The TUSB320RWBR requires VDD ≥ 3.5 V to advertise 3 A current mode. This is specified in the Electrical Characteristics table (Section 6.5, footnote 1): "VDD must be 3.5 V or greater to advertise 3 A current." Below 3.5 V, the device limits current advertisement to default (500 mA/900 mA) or medium (1.5 A) modes. This ensures sufficient gate drive for internal current sources and maintains USB Type-C specification compliance for high-current operation.
Can the TUSB320RWBR operate with legacy USB Type-C 1.0 devices?
The TUSB320RWBR is backward compatible with USB Type-C Specification 1.0 for DFP and UFP roles, but it cannot interoperate with USB Type-C 1.0 Dual Role Ports (DRPs) due to a documented backward compatibility limitation between USB Type-C 1.1 DFP and USB Type-C 1.0 DRP handshake timing. For systems requiring full 1.0 interoperability-including legacy DRP devices-TI recommends verifying physical layer timing margins or selecting alternative solutions with explicit 1.0 DRP support.
TUSB320RWBR 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
TUSB320RWBR FAQ
1.How can I place an order for TUSB320RWBR through Aetrix?
Please submit a Request for Quotation (RFQ) for TUSB320RWBR 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 TUSB320RWBR reliable?
The price and inventory of TUSB320RWBR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TUSB320RWBR is usually 5 days.
3.What payment methods are accepted for TUSB320RWBR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TUSB320RWBR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TUSB320RWBR?
TUSB320RWBR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TUSB320RWBR 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 TUSB320RWBR?
For technical support, including TUSB320RWBR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TUSB320RWBR requirements.
6.How does Aetrix verify that TUSB320RWBR is sourced from the original manufacturer or authorized distributors?
All TUSB320RWBR 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 TUSB320RWBR meets industry standards.
7.What is the process for return or replacement of TUSB320RWBR?
All TUSB320RWBR units undergo pre-shipment inspection (PSI). If there is an issue with TUSB320RWBR, 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 TUSB320RWBR part is unused and in its original packaging.
Return procedure for TUSB320RWBR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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