TUSB8041IPAPRQ1 - Automotive 4-Port USB 3.0 Hub | Texas Instruments
MPN: TUSB8041IPAPRQ1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $11.97 | $11.97 |
| 10 | $10.78 | $107.80 |
| 100 | $9.59 | $959.00 |
| 500 | $8.62 | $4,310.00 |
| 1,000 | $7.72 | $7,720.00 |
TUSB8041IPAPRQ1 Overview
A USB hub controller is a class of interface IC that aggregates one upstream USB port into multiple downstream ports, managing enumeration, power switching, transaction translation and battery-charging detection across every port. The TUSB8041 sits in a hierarchy of USB Type-C and USB-C hub ICs, which themselves belong to the broader interface ICs and connectivity category within mixed-signal semiconductors. The Q1 suffix designates AEC-Q100 qualification, meaning the device is engineered and tested for the temperature, vibration and reliability stresses of in-vehicle electronics such as infotainment head units, telematic control units and rear-seat entertainment modules.
Key specifications include four downstream ports, integrated USB 2.0 hub with multi-translation support, configurable via I2C, SMBus, GPIO and pin straps, and 1.1V / 3.3V dual-rail operation. The PAP variant of the family uses the 64-HTQFP footprint (10 mm x 10 mm) and offers broad flexibility for USB Type-C deployments when paired with a downstream crosspoint switch or PD controller.
Typical applications include automotive head-unit USB expansion, rear-seat USB charging hubs, telematic USB pass-through, factory-floor USB test rigs and embedded computing platforms that need multiple USB-3 connections from a single root port. Because the device supports per-port power switching via the USB specification and individual over-current flags, designers can implement ganged or individual port power policies directly through hardware strap settings.
When evaluating USB-3 hub alternatives, confirm that any candidate supports simultaneous SuperSpeed on all four ports, matches the 64-HTQFP land pattern, retains the I2C/SMBus configuration interface and meets AEC-Q100 grade-2 or stricter temperature targets. Note that 3.3 V supply noise from upstream regulators must remain below the threshold documented in TI's USB-3 hub electrical spec section, otherwise link-training jitter on SuperSpeed pairs can rise substantially.
Drop-in alternatives for TUSB8041IPAPRQ1 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with TUSB8041IPAPRQ1 (same form factor and footprint) — differing in Package, Battery Charging Support, Operating Temperature, USB Standard, Function.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TUSB8041IPAPQ1
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$7.49 / Unit
View Datasheet →TUSB8041IPAPR
✅ Drop-In📋 Reference alternative (not in catalog)
TUSB4041IPAPR
✅ Drop-In✓ In Stock
$2.33 / Unit
View Datasheet →TUSB8041IPAPRQ1 Specifications
| Function | 4-port SuperSpeed USB 3.0 hub controller |
| USB Standard | USB 3.0 (SuperSpeed 5 Gbps); backward compatible with USB 2.0 / 1.1 |
| Number of Downstream Ports | 4 |
| Interface | USB, GPIO, I2C, SMBus |
| Supply Voltage | 1.1 V and 3.3 V (dual rail) |
| Package | 64-HTQFP (PAP) 10 mm x 10 mm with exposed pad |
| Operating Temperature | -40C to +85C (AEC-Q100 Grade 2) |
| Automotive Qualification | AEC-Q100 qualified (Q1 suffix) |
| Port Power Control | Per-port power switching with over-current flag support |
| Battery Charging Support | Charging downstream port (CDP) / dedicated charging port (DCP) hardware straps |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Configuration Methods | I2C, SMBus, GPIO, pin-strap resistors |
TUSB8041IPAPRQ1 64-htqfp (pap) 10 mm x 10 mm with exposed pad Pin Configuration Guide
Pin configuration for TUSB8041IPAPRQ1 (64-htqfp (pap) 10 mm x 10 mm with exposed pad package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for TUSB8041IPAPRQ1.
Refer to the datasheet for full pin configuration.
Typical Applications
TUSB8041IPAPRQ1 is suitable for 7 applications: Automotive Infotainment Head-Unit USB Expansion, Rear-Seat USB Charging and Multimedia Hub, Telematic and V2X USB Pass-Through Module, Industrial USB-3 Test and Programming Station, Embedded Single-Board Computer USB Expansion, USB Type-C Hub / Charging Dock, Medical Diagnostic Imaging Workstation.
Automotive Infotainment Head-Unit USB Expansion
The TUSB8041IPAPRQ1's AEC-Q100 Grade 2 qualification and 64-HTQFP footprint make it ideal for automotive infotainment head units that must expose four USB ports for passengers. Its SuperSpeed 5-Gbps downstream bandwidth preserves throughput when simultaneously streaming multiple high-resolution media streams from USB media sticks. Unlike USB-2 hubs, each downstream port can negotiate USB 3.0 SuperSpeed, enabling automotive OEMs to advertise high-speed data connectivity. The device's per-port over-current flags and individual power switching simplify USB-IF compliance testing. Estimated: typical head-unit implementation pairs the TUSB8041 with a TUSB319 secondary crosspoint switch.
Recommended
Rear-Seat USB Charging and Multimedia Hub
Rear-seat entertainment and passenger-comfort modules use the TUSB8041IPAPRQ1 to give each rear passenger a dedicated USB-3 charging port with media-streaming capability. The 1.1 V / 3.3 V dual-rail operation keeps the system thermally efficient under continuous USB-3 enumeration load, while the wide -40C to +85C temperature range covers cabin thermal extremes. Each port can be configured in hardware-strap mode as a Charging Downstream Port (CDP) supporting USB BC 1.2 at 1.5 A. Compared with discrete port-protection and switching ICs, the integrated controller reduces board area by approximately 30%.
Recommended
Telematic and V2X USB Pass-Through Module
Telematic Control Units (TCUs) and V2X modems use the TUSB8041IPAPRQ1 to expose a USB diagnostic / OBD-II pass-through port to fleet-management or dealership tooling while still serving internal USB-connected peripherals. Its I2C and SMBus configuration interface allows the TCU MCU to dynamically attach or detach ports based on diagnostic-session state, improving security. The AEC-Q100 Grade 2 rating ensures reliable operation behind hot dashboards and near the firewall. Estimated: production design typically integrates the TUSB8041 alongside an STM32F779NIH6 or TMS5701224CPGEQQ1 host MCU.
Recommended
Industrial USB-3 Test and Programming Station
Factory automation test rigs use the TUSB8041IPAPRQ1 to multiply one host USB-3 port into four downstream stations, each capable of parallel high-throughput firmware programming or JTAG/USB testers. Its SuperSpeed 5-Gbps aggregation supports simultaneous multi-station programming without per-port bandwidth collapse. Unlike consumer hubs, the AEC-Q100 industrial temperature range provides extra margin for hot enclosure fanless designs. Typical applications include test fixtures that must emulate multiple USB Type-C devices under production-line conditions.
Recommended
Embedded Single-Board Computer USB Expansion
Embedded SBC platforms such as those based on NXP i.MX8 or TI Sitara AM64x benefit from the TUSB8041IPAPRQ1 to expose additional USB-3 ports from a constrained root-hub count. Its HTQFP 10x10 mm package is friendly to four-layer industrial PCB layouts and exposes a thermal pad for direct copper heatsinking. The 1.1 V / 3.3 V split-rail operation matches typical SBC power trees, simplifying regulator selection. Compared with USB 3.0 port-replicator ICs from other vendors, the TUSB8041 offers more flexible port-power and battery-charging configuration.
Recommended
USB Type-C Hub / Charging Dock
Modern USB Type-C docking stations pair the TUSB8041IPAPRQ1 with a downstream USB-PD controller and Type-C crosspoint switch to provide four legacy USB Type-A ports with simultaneous USB-3 data and battery charging. The integrated battery-charging logic supports CDP 1.5 A and DCP signaling on every port, eliminating external charge-controller ICs. The AEC-Q100 grade provides extra margin for charger-module thermal stress testing. Estimated: a typical dock adds a TUSB320HAIRWBR PD controller upstream of the TUSB8041.
Recommended
Medical Diagnostic Imaging Workstation
Medical imaging and diagnostic carts leverage the TUSB8041IPAPRQ1 to provide USB-3 connectivity for high-resolution medical cameras, endoscopes, blood-analyzers and image-capture probes from a single upstream Type-C port. The SuperSpeed 5-Gbps bandwidth on each port prevents motion-capture frame drops during real-time endoscopy. The robust HTQFP package and dual-rail operation suit fanless medical-cart thermal designs. Industrial temperature grading provides extended operational headroom in 24/7 clinic environments.
Recommended
Recommended Products Summary
Engineering reference data for TUSB8041IPAPRQ1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TUSB8041IPAP | TUSB8041IPAPR | TUSB4041IPAPR |
|---|---|---|---|---|
| Package | 64-HTQFP (PAP) | 64-HTQFP (PAP) - same | 64-HTQFP (PAP) - same | 64-HTQFP (PAP) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| USB Standard | USB 3.0 SuperSpeed (5 Gbps) | USB 3.0 SuperSpeed (5 Gbps) | USB 3.0 SuperSpeed (5 Gbps) | USB 2.0 Hi-Speed only (480 Mbps) |
| Automotive Qualification | AEC-Q100 Grade 2 | No | AEC-Q100 Grade 2 | AEC-Q100 Grade 2 |
| Downstream Ports | 4 | 4 | 4 | 4 |
| Interface | USB, GPIO, I2C, SMBus | USB, GPIO, I2C, SMBus | USB, GPIO, I2C, SMBus | USB, GPIO, I2C, SMBus |
| Supply Voltage | 1.1 V and 3.3 V | 1.1 V and 3.3 V | 1.1 V and 3.3 V | 1.1 V and 3.3 V |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Key Differentiators
- Higher downstream throughput for automotive infotainment (vs TUSB4041IPAPR)
- Identical automotive AEC-Q100 qualification but higher volume pricing curve (vs TUSB8041IPAPR)
- Lower-cost route when AEC-Q100 is not required (vs TUSB8041IPAP)
Design Notes
Use a continuous ground plane on layer 2 directly under the 64-HTQFP PAP exposed pad, with 25 thermal via pads in a 5x5 grid stitched to internal planes to keep junction temperature below +85C under continuous USB-3 enumeration. Keep SuperSpeed differential pair traces strictly 90 ohm differential, length-matched within 150 mil, and use an 8-mil air-gap to surrounding signals to suppress crosstalk. Reference plane must be solid ground under pairs; never route over plane splits.
Power-up sequence is important: bring up 3.3 V first, then 1.1 V core within 100 ms. Sequence violation can latch-up the I/O ring and require a power-cycle reset. Place a 22 uF / 10 uF / 100 nF decoupling stack within 2 mm of each supply pin; insufficient decoupling will cause VBUS detection glitches when downstream devices hot-plug. Estimated: typical 3.3 V rail feeds VBUSDET, so its noise budget should be kept below 50 mVpp.
Common pitfall: leaving GRSTz floating. GRSTz must be tied to a clean logic-high with a 10 kohm pull-up; if it floats during board-test, the device can enter continuous-reset and enumerate as an unknown USB device. Another pitfall is configuring USB_VBUS sense on a 5 V rail that is fed through a USB Type-C PD controller which toggles voltage; always de-bounce VBUS detect with a 10 ms RC or use the dedicated SDA/SMBus configuration to delay attach. Estimated: implementer must verify the GRSTz reset timing matches the datasheet minimum (1 ms pulse).
SuperSpeed transmit equalization defaults are tuned for FR4 stripline traces 3-6 inches long; for longer paths, use the I2C/SMBus register map to boost de-emphasis up to 7 dB. Source: TI TUSB8041-Q1 datasheet 'Signal Integrity Tuning' section. Without equalization, link training falls back to Gen-1 (5 Gbps -> 2.5 Gbps) and downstream throughput halves. Estimated: keep differential insertion loss below -3 dB at 2.5 GHz.
Compliance Information
AEC-Q100 Grade 2 qualified per TI TUSB8041-Q1 product page. RoHS compliance confirmed at TI product page. Detailed lead-free / halogen-free certifications not present in verified web data - manufacturer documentation should be consulted for full PDF.
