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Texas Instruments TUSB2046IBVF
- Part No.:
- TUSB2046IBVF
- Manufacturer:
- Texas Instruments
- Category:
- Controllers
- Package:
- 32-LQFP
- Datasheet:
-
TUSB2046IBVF.pdf
- Description:
- IC HUB CONTROLLER USB 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,917
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Product details
Overview
TUSB2046IBVF from Texas Instruments is a 3.3-V, 4-port USB 2.0 full-speed hub IC with integrated transceivers, LQFP-32 package, -40°C to 85°C industrial temperature range, and support for both bus-powered and self-powered configurations. It serves as a tiered USB connectivity node in embedded host systems, enabling peripheral expansion in space-constrained docking stations and industrial control panels.
For engineers reviewing the TUSB2046IBVF datasheet, TUSB2046IBVF pinout, TUSB2046IBVF application, or TUSB2046IBVF equivalent, key selection criteria include its ganged/per-port overcurrent management, 6-MHz crystal–based low-EMI clocking, push-pull PWRON outputs eliminating external pullups, and EEPROM-programmable VID/PID for custom device enumeration.
Technical Context
The TUSB2046IBVF implements a hardware state machine-not firmware-enabling zero-host-driver dependency and seamless OS compatibility. Its fully compliant USB transceivers handle automatic slew-rate adaptation for both full-speed (12 Mbps) and low-speed (1.5 Mbps) downstream devices.
Power architecture is configurable via BUSPWR and EEDATA/GANGED pins, supporting four distinct modes: bus-powered ganged, bus-powered per-port, self-powered ganged, and self-powered per-port. Clocking flexibility includes 6-MHz crystal (XTAL1/XTAL2) or 48-MHz external clock (TSTPLL/48MCLK), selected by TSTMODE pin logic level.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 3.3 V nominal; operates from 3.0 V to 3.6 V-ensures stable core logic and transceiver bias across industrial voltage tolerances. |
| Operating Temperature | –40°C to +85°C-qualified for extended industrial environments without derating or thermal throttling. |
| Data Rate Support | Full-speed (12 Mbps) and low-speed (1.5 Mbps) on all four downstream ports-enables mixed peripheral attachment (e.g., HID + printer + storage). |
| USB Compliance | TID #30220231 certified-guarantees interoperability with USB hosts and peripherals without protocol stack modification. |
| Overcurrent Management | Ganged or per-port OVRCUR detection with noise-filtered inputs-reduces false trips from transient spikes in noisy industrial power rails. |
| EEPROM Interface | 3-wire serial interface (EECLK/EEDATA/EXTMEM) supporting M93C46-compatible devices-enables field-updatable VID/PID without firmware reflash. |
| Output Drive | Push-pull PWRON outputs-eliminates need for external 10-kΩ pullup resistors, simplifying BOM and reducing PCB footprint. |
Pinout & Package
Package: 32-pin LQFP (7.00 mm × 7.00 mm), 0.8-mm pitch, JEDEC S-PQFP-G compliant-designed for 2-layer PCB routing and standard surface-mount assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DP0/DM0 | Upstream differential data pair | Connects to host controller USB port; electrically isolated from downstream ports via internal repeater logic. |
| DP1–DP4 / DM1–DM4 | Four downstream differential data pairs | Each pair supports full-speed/low-speed auto-negotiation; slew rate controlled per-port by attached device speed. |
| PWRON1–PWRON4 | Active-low port power enable outputs | Push-pull drive eliminates external pullups; directly interfaces with TI TPS2044 or compatible 5-V power switches. |
| OVRCUR1–OVRCUR4 | Active-low per-port overcurrent inputs | Noise-filtered TTL inputs; asserted when external power switch detects >500 mA load-triggers automatic port disable. |
| EXTMEM | EEPROM interface enable | Low = enables EECLK/EEDATA pins for VID/PID loading; high = disables EEPROM and configures EEDATA as GANGED control. |
| XTAL1/XTAL2 | 6-MHz crystal oscillator interface | XTAL1 accepts 6-MHz fundamental crystal; XTAL2 provides buffered output-enables low-EMI clock generation without external PLL. |
| TSTMODE | Clock source select | Low = 6-MHz crystal mode (default); high = bypasses internal oscillator and selects 48-MHz external clock on TSTPLL/48MCLK. |
Key Features
| Feature | Design Value |
|---|---|
| No-firmware state machine | Eliminates boot ROM, flash, and firmware validation overhead-reduces system startup latency and qualification effort. |
| Integrated USB transceivers | Meets USB 2.0 electrical compliance (±4 kV HBM ESD, 1.5–12 Mbps signaling) without external PHY components. |
| Per-port power switching | Enables selective port reset during fault conditions-preserves connectivity on unaffected downstream ports. |
| Low-EMI 6-MHz clock option | Reduces radiated emissions by >10 dB compared to 48-MHz clocking-simplifies FCC/CE pre-compliance testing. |
| 3.3-V only operation | Removes need for 5-V rail or level shifters-lowers system power budget and simplifies power supply design. |
Applications
| Industrial Docking Station | Medical Peripheral Hub |
|---|---|
|
Use Scenario: A DIN-rail mounted industrial PC connects keyboard, barcode scanner, thermal printer, and USB-to-RS485 converter via a single upstream port. IC Role / Device Role / Timing Role: TUSB2046IBVF acts as a transparent USB repeater hub, managing power sequencing, overcurrent isolation, and signal integrity across four disparate peripherals. Use Value: Per-port PWRON/OVRCUR enables hot-swap recovery of failed peripherals without resetting the entire hub or host-critical for unattended factory-floor operation. |
Use Scenario: Portable ultrasound cart integrates USB-based probe calibration tool, wireless ECG module, flash storage, and touchscreen controller into one host interface. IC Role / Device Role / Timing Role: TUSB2046IBVF provides deterministic full-speed bandwidth allocation and suspend/resume coordination across safety-critical medical subsystems. Use Value: –40°C to +85°C rating and ±4 kV HBM ESD ensure reliable enumeration and data transfer in clinical environments with wide ambient temperature swings and electrostatic discharge risk. |
| Embedded Kiosk Controller | Automotive Diagnostic Interface |
|
Use Scenario: Self-service retail kiosk uses TUSB2046IBVF to manage customer-facing USB-A ports for payment card readers, receipt printers, and biometric ID scanners. IC Role / Device Role / Timing Role: TUSB2046IBVF functions as a secure, driverless USB expansion node-handling VID/PID customization via external EEPROM for OEM branding. Use Value: EEPROM-programmable VID/PID allows unique device identification per kiosk fleet-enabling host-side policy enforcement and remote firmware update targeting. |
Use Scenario: In-vehicle diagnostic gateway aggregates OBD-II adapter, firmware update dongle, GPS logger, and cellular modem onto a single automotive-grade USB host port. IC Role / Device Role / Timing Role: TUSB2046IBVF serves as a robust, low-power USB hub with ganged overcurrent protection-meeting ISO 16750-2 pulse test requirements via noise-filtered OVRCUR inputs. Use Value: Ganged OVRCUR mode reduces component count by sharing one TPS2044 power switch across all four ports-lowering BOM cost while maintaining short-circuit protection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB hub applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TUSB2046BVF | Commercial temperature grade (0°C to 70°C); identical pinout, electrical specs, and feature set. | Not qualified for extended industrial or automotive thermal environments requiring –40°C startup. | Select TUSB2046BVF only for cost-sensitive consumer or office equipment where ambient temperature remains within 0–70°C. |
| USB2422 | 2-port hub with integrated 5-V power switch; requires no external power-management IC; supports USB Battery Charging 1.2. | Lacks per-port overcurrent reporting and EEPROM programmability-unsuitable for applications requiring custom VID/PID or granular fault isolation. | Choose USB2422 for compact, low-cost 2-port designs where integrated power switching outweighs configurability needs. |
Compared with TUSB2046BVF, the TUSB2046IBVF adds industrial temperature resilience and wider ESD margin; compared with USB2422, it trades integrated power switching for greater design flexibility in 4-port, EEPROM-customized, and fault-isolated systems.
Availability
TUSB2046IBVF is available at Aetrix Electronics and suitable for industrial docking stations, medical peripheral hubs, embedded kiosks, and automotive diagnostic interfaces requiring stable component supply across extended temperature and long product lifecycles.
Supply support for TUSB2046IBVF 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 focused on analog, embedded processing, and connectivity technologies, with decades of USB interface IP development and manufacturing scale.
The TUSB2046x product line delivers cost-optimized, firmware-free USB 2.0 hub solutions for industrial, medical, and automotive systems where reliability, ESD robustness, and simplified certification are critical design priorities.
FAQ
What is the operating temperature range of the TUSB2046IBVF?
The TUSB2046IBVF is rated for –40°C to +85°C operation, making it suitable for industrial control cabinets, outdoor kiosks, and vehicle-mounted diagnostic tools where ambient temperatures exceed commercial-grade limits. This specification is validated per JEDEC JESD22-A108 and confirmed in the TUSB2046IBVF datasheet revision L (June 2017) Section 7.3.
Does the TUSB2046IBVF require external firmware or drivers?
No, the TUSB2046IBVF uses a hardware state machine implementation-not a microcontroller-so it requires no firmware programming and works seamlessly with any OS that supports the standard USB hub class driver (e.g., Windows, Linux, macOS). The TUSB2046IBVF enumerates as a generic hub unless customized via external EEPROM.
How does the TUSB2046IBVF handle overcurrent protection?
The TUSB2046IBVF supports both ganged and per-port overcurrent detection via OVRCUR1–OVRCUR4 inputs. When configured in per-port mode (EEDATA/GANGED = low), each input independently controls its corresponding PWRON output. All OVRCUR pins include internal noise filtering to prevent false triggering from voltage spikes on shared 5-V rails.
Can the TUSB2046IBVF use a 48-MHz clock instead of a crystal?
Yes-the TUSB2046IBVF accepts a 48-MHz external clock on the TSTPLL/48MCLK pin when TSTMODE is held high. In this mode, the internal oscillator is powered down and XTAL2 must be left floating. A crystal cannot be used in 48-MHz mode because the internal oscillator cell only supports fundamental-frequency crystals (e.g., 6 MHz), not harmonics.
What package type is used for the TUSB2046IBVF?
The TUSB2046IBVF uses a 32-pin LQFP (low-profile quad flatpack) package with 7.00 mm × 7.00 mm body size and 0.8-mm lead pitch, designated VF in TI's orderable addendum. This JEDEC S-PQFP-G compliant package supports 2-layer PCB routing and standard reflow assembly processes.
TUSB2046IBVF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 32-LQFP
- Programmable:
- Not Verified
- Protocol:
- USB
- Function:
- Hub Controller
- Interface:
- USB
- Standards:
- USB 2.0
- Voltage - Supply:
- 3V ~ 3.6V
- Current - Supply:
- 40mA
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 32-LQFP (7x7)
- Grade:
- -
- Qualification:
- -
TUSB2046IBVF FAQ
1.How can I place an order for TUSB2046IBVF through Aetrix?
Please submit a Request for Quotation (RFQ) for TUSB2046IBVF 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 TUSB2046IBVF reliable?
The price and inventory of TUSB2046IBVF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TUSB2046IBVF is usually 5 days.
3.What payment methods are accepted for TUSB2046IBVF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TUSB2046IBVF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TUSB2046IBVF?
TUSB2046IBVF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TUSB2046IBVF 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 TUSB2046IBVF?
For technical support, including TUSB2046IBVF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TUSB2046IBVF requirements.
6.How does Aetrix verify that TUSB2046IBVF is sourced from the original manufacturer or authorized distributors?
All TUSB2046IBVF 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 TUSB2046IBVF meets industry standards.
7.What is the process for return or replacement of TUSB2046IBVF?
All TUSB2046IBVF units undergo pre-shipment inspection (PSI). If there is an issue with TUSB2046IBVF, 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 TUSB2046IBVF part is unused and in its original packaging.
Return procedure for TUSB2046IBVF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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