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Texas Instruments TUSB8020BPHPG4
- Part No.:
- TUSB8020BPHPG4
- Manufacturer:
- Texas Instruments
- Category:
- Controllers
- Package:
- 48-PowerTQFP
- Datasheet:
-
TUSB8020BPHPG4.pdf
- Description:
- TWO-PORT SUPERSPEED 5.0GBPS USB
- Quantity:
- Payment:
- Shipping:
Inventory:1,357
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Product details
Overview
TUSB8020BPHPG4 from Texas Instruments is a two-port USB 3.0 compliant hub IC supporting simultaneous SuperSpeed (5 Gbps), high-speed (480 Mbps), full-speed (12 Mbps), and low-speed (1.5 Mbps) operation across upstream and downstream ports. It integrates Multi-Transaction Translator (MTT) architecture with two transaction translators, four asynchronous endpoint buffers per translator, and supports battery charging modes including CDP and DCP compliant with YD/T 1591-2009 - deployed in docking stations and monitor-integrated USB hubs.
For engineers reviewing the TUSB8020BPHPG4 datasheet, TUSB8020BPHPG4 pinout, TUSB8020BPHPG4 application, or TUSB8020BPHPG4 equivalent, key selection criteria include per-port/ganged power switching, OTP/I²C/SMBus configurability for VID/PID and port behavior, SuperSpeed status reporting via dedicated pins, and 48-pin HTQFP packaging with 7.0 mm × 7.0 mm footprint.
Technical Context
The TUSB8020BPHPG4 implements a dual-transaction-translator USB 3.0 hub architecture enabling independent bandwidth allocation for high-speed and SuperSpeed traffic on each downstream port. Its upstream port dynamically negotiates link speed - disabling SuperSpeed when connected to USB 2.0 hosts and disabling both SuperSpeed and high-speed when connected to USB 1.x hosts.
Power management is configurable at reset via strap pins (FULLPWRMGMTz, GANGED, PWRCTL_POL) or registers, supporting active-high/active-low control, per-port or ganged switching, and overcurrent detection with dedicated OVERCUR1z/OVERCUR2z inputs. Battery charging mode (CDP/DCP/AUTOMODE) is determined by BATEN1/BATEN2 pin states and VBUS presence, with AUTOMODE defaulting to automatic divider-mode/DCP selection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Compliance | USB 3.0 (SuperSpeed), USB 2.0 (high/full/low-speed), USB Battery Charging v1.2, YD/T 1591-2009 DCP |
| Data Rates | 5 Gbps (SuperSpeed), 480 Mbps (high-speed), 12 Mbps (full-speed), 1.5 Mbps (low-speed) |
| Architecture | Multi-Transaction Translator (MTT) with two TTs and four async endpoint buffers per TT |
| Supply Voltages | VDD = 0.99–1.26 V (1.1-V core); VDD33 = 3.0–3.6 V (I/O & analog) |
| Operating Temperature | 0°C to 70°C (commercial grade, TUSB8020B variant) |
| Package | 48-pin HTQFP (PHP), 7.0 mm × 7.0 mm body, thermal pad |
| Configuration Interface | OTP ROM, I²C EEPROM, or SMBus slave interface for VID/PID, port customization, and string support |
Pinout & Package
Package: 48-pin HTQFP (PHP), 7.0 mm × 7.0 mm body size, exposed thermal pad (GND). RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| USB_SSTXP_UP / USB_SSTXM_UP | Upstream SuperSpeed differential transmitter | Drives 5-Gbps differential signaling to host; requires AC coupling and 90-Ω differential impedance routing |
| USB_SSRXP_UP / USB_SSRXM_UP | Upstream SuperSpeed differential receiver | Receives 5-Gbps differential signals from host; includes integrated termination and equalization |
| USB_DP_UP / USB_DM_UP | Upstream USB 2.0 differential transceiver | Handles high/full/low-speed signaling; shared with SuperSpeed path via internal mux |
| PWRCTL1/BATEN1 / PWRCTL2/BATEN2 | Port 1/2 power control & battery charging enable | Configures per-port power switch polarity and enables CDP/DCP charging; sampled at reset deassertion |
| OVERCUR1z / OVERCUR2z | Downstream port 1/2 overcurrent detection input | Active-low signal indicating overcurrent event; used for automatic port power disable in individual mode |
| FULLPWRMGMTz / GANGED / PWRCTL_POL | Power management configuration strapping | Determines power switching enable, ganged vs. per-port mode, and active-high/low control polarity at boot |
| SCL/SMBCLK / SDA/SMBDAT | I²C/SMBus interface | Configurable for OTP programming, VID/PID assignment, or runtime register access; pull-up required for OTP use |
| GRSTz | Global power-on reset input | Active-low asynchronous reset; places all internal registers into default state; must be held low ≥3 ms after power stable |
Key Features
| Feature | Design Value |
|---|---|
| Two-port USB 3.0 hub with MTT architecture | Enables concurrent high-speed and SuperSpeed device connections without bandwidth contention between ports |
| Configurable battery charging (CDP/DCP/AUTOMODE) | Supports USB-IF certified charging handshaking and Chinese YD/T 1591-2009 compliance without external circuitry |
| Strap-pin + register + OTP/I²C/SMBus configuration | Allows factory-programmed VID/PID, port removability, auto-mode settings, and power delay timing without firmware dependency |
| Dedicated SuperSpeed status reporting pins | SS_DN1/SS_DN2 and SS_UP provide real-time hardware-level connection status for SuperSpeed links - usable for LED indicators or system diagnostics |
| Ganged or per-port power switching with overcurrent protection | Reduces BOM count in cost-sensitive designs (ganged) or enables fault isolation in mission-critical systems (per-port) |
Applications
| Desktop Docking Station | USB-C Monitor Hub |
|---|---|
|
Use Scenario: A compact desktop dock connects laptop via USB-C (Alt Mode) and provides two downstream USB 3.0 ports for peripherals plus HDMI, Ethernet, and audio. IC Role / Device Role / Timing Role: TUSB8020BPHPG4 acts as the embedded USB 3.0 hub controller managing SuperSpeed data paths between upstream USB-C port and dual downstream Type-A ports. Use Value: Enables native 5-Gbps bandwidth to external SSDs and HD webcams while maintaining backward compatibility with USB 2.0 keyboards/mice - all within tight thermal and PCB area constraints of a fanless dock. |
Use Scenario: A 4K monitor integrates USB 3.0 hub functionality to allow keyboard, mouse, and flash drive connection through its rear USB-A ports. IC Role / Device Role / Timing Role: TUSB8020BPHPG4 serves as the timing-synchronized USB hub, receiving upstream data from the monitor's internal USB 3.0 controller and distributing it to downstream ports with minimal latency. Use Value: Delivers deterministic USB enumeration and stable SuperSpeed link training even under variable VBUS conditions - critical for plug-and-play reliability in consumer display products. |
| Industrial Set-Top Box | Medical Imaging Peripheral Hub |
|
Use Scenario: An IPTV set-top box includes two front-panel USB 3.0 ports for external HDD recording and firmware updates via USB stick. IC Role / Device Role / Timing Role: TUSB8020BPHPG4 functions as the isolated USB hub with per-port power control, enabling safe hot-plug detection and overcurrent shutdown without affecting main system operation. Use Value: Supports robust battery charging for USB-powered remote controls and enables secure firmware update via authenticated USB mass storage - meeting CE/UL safety requirements. |
Use Scenario: A portable ultrasound device uses a detachable USB hub module to connect probe calibration tools, DICOM transfer drives, and service diagnostic dongles. IC Role / Device Role / Timing Role: TUSB8020BPHPG4 operates as a medical-grade USB hub with deterministic reset behavior, ESD-hardened I/O (±2000 V HBM), and traceable configuration via OTP serial number. Use Value: Ensures FDA-aligned design traceability through 128-bit UUID and programmable manufacturer/product strings - simplifying regulatory documentation and field failure analysis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB 3.0 hub applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| USB2514B-AEZG | USB 2.0-only hub (480 Mbps max); no SuperSpeed support; 4-port; integrated 3.3-V LDO | Limited to legacy peripheral connectivity; no SSD or 4K webcam support | Select when only USB 2.0 bandwidth suffices and cost is primary constraint |
| TUSB8041IRGCT | Four-port USB 3.0 hub; same MTT architecture; supports USB 3.1 Gen 1; larger 64-pin QFN package | Higher port count and identical protocol stack - suitable for expansion docks requiring >2 downstream ports | Choose for scalable designs needing future port expansion without firmware rework |
Compared with USB2514B-AEZG, TUSB8020BPHPG4 delivers 10× higher bandwidth and native USB BC 1.2 charging, while TUSB8041IRGCT extends scalability to four ports with identical register compatibility - making TUSB8020BPHPG4 optimal for space-constrained dual-port applications requiring SuperSpeed and charging integration.
Availability
TUSB8020BPHPG4 is available at Aetrix Electronics and suitable for docking stations, USB-C monitors, set-top boxes, and industrial embedded systems requiring stable component supply, long-term lifecycle support, and commercial-grade temperature performance.
Supply support for TUSB8020BPHPG4 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 solutions, with leadership in USB interface ICs since the USB 1.0 era.
The TUSB8020BPHPG4 belongs to TI's USB 3.0 hub product line, designed specifically for compact, low-power, feature-rich peripheral connectivity in consumer, computing, and industrial equipment where SuperSpeed bandwidth and intelligent power management are essential.
FAQ
What USB specifications does the TUSB8020BPHPG4 comply with?
The TUSB8020BPHPG4 complies with USB 3.0 specification (SuperSpeed at 5 Gbps), USB 2.0 specification (high/full/low-speed), USB Battery Charging Specification v1.2, and Chinese Telecommunications Industry Standard YD/T 1591-2009 for DCP mode. It is certified by USB-IF with TID#330000057 and supports mandatory USB 3.0 electrical compliance tests including eye diagram, jitter, and receiver sensitivity - ensuring interoperability with certified hosts and devices.
How is the TUSB8020BPHPG4 configured for battery charging modes?
The TUSB8020BPHPG4 supports CDP, DCP, and AUTOMODE battery charging via PWRCTL1/BATEN1 and PWRCTL2/BATEN2 pins sampled at reset deassertion, or through register REG_6h(batEn[1:0]). AUTOMODE is enabled by default and automatically selects between divider-mode (for legacy chargers) and DCP mode (for YD/T 1591-2009 devices). CDP mode activates only when VBUS is present and AUTOMODE is disabled - verified in Table 1 of the TUSB8020BPHPG4 datasheet.
Does the TUSB8020BPHPG4 require an external crystal or oscillator?
Yes, the TUSB8020BPHPG4 requires a single 24-MHz clock source - either a 24-MHz fundamental-mode crystal (12–24 pF load capacitance, ≤50 Ω ESR, ±100 ppm stability) connected to XI/XO pins with a 1-MΩ feedback resistor, or a 24-MHz CMOS oscillator driving the XI pin directly (XO left floating). The device contains no internal PLL for frequency multiplication; all USB timing derives directly from this reference.
What are the power supply requirements for the TUSB8020BPHPG4?
The TUSB8020BPHPG4 requires two independent supplies: VDD (0.99–1.26 V, 1.1-V core rail, typical 342 mA in active U0 mode with two SuperSpeed devices) and VDD33 (3.0–3.6 V, 3.3-V I/O/analog rail, typical 93 mA under same conditions). No strict power sequencing is required - either rail may stabilize first - but both must be stable ≥3 ms before GRSTz deassertion per Section 7.6 of the datasheet.
Can the TUSB8020BPHPG4 be used in industrial temperature applications?
No - the TUSB8020BPHPG4 is the commercial-grade variant rated for 0°C to 70°C ambient operation. For industrial applications (–40°C to 85°C), the pin-compatible TUSB8020BI variant must be used. Both share identical functionality, pinout, and package (HTQFP-48), but TUSB8020BI undergoes extended temperature qualification and screening per TI's industrial reliability standards.
TUSB8020BPHPG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 48-PowerTQFP
- Programmable:
- -
- Protocol:
- USB
- Function:
- Hub Controller
- Interface:
- USB, GPIO, I2C, SMBus
- Standards:
- USB 2.0, USB 3.0
- Voltage - Supply:
- 0.99V ~ 1.26V, 3V ~ 3.6V
- Current - Supply:
- -
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Supplier Device Package:
- 48-HTQFP (7x7)
- Grade:
- -
- Qualification:
- -
TUSB8020BPHPG4 FAQ
1.How can I place an order for TUSB8020BPHPG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TUSB8020BPHPG4 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 TUSB8020BPHPG4 reliable?
The price and inventory of TUSB8020BPHPG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TUSB8020BPHPG4 is usually 5 days.
3.What payment methods are accepted for TUSB8020BPHPG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TUSB8020BPHPG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TUSB8020BPHPG4?
TUSB8020BPHPG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TUSB8020BPHPG4 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 TUSB8020BPHPG4?
For technical support, including TUSB8020BPHPG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TUSB8020BPHPG4 requirements.
6.How does Aetrix verify that TUSB8020BPHPG4 is sourced from the original manufacturer or authorized distributors?
All TUSB8020BPHPG4 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 TUSB8020BPHPG4 meets industry standards.
7.What is the process for return or replacement of TUSB8020BPHPG4?
All TUSB8020BPHPG4 units undergo pre-shipment inspection (PSI). If there is an issue with TUSB8020BPHPG4, 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 TUSB8020BPHPG4 part is unused and in its original packaging.
Return procedure for TUSB8020BPHPG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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