TUSB4041IPAPQ1 - 4-Port USB 2.0 Hub AEC-Q100 | Texas Instruments
MPN: TUSB4041IPAPQ1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.1 | $6.10 |
| 10 | $5.49 | $54.90 |
| 100 | $4.89 | $489.00 |
| 500 | $4.32 | $2,160.00 |
| 1,000 | $3.85 | $3,850.00 |
TUSB4041IPAPQ1 Overview
A USB 2.0 hub is a critical interface IC that expands a single USB root port into multiple downstream ports, providing downstream device connect/disconnect detection, overcurrent protection coordination, transaction translation between split USB transactions, and configurable port-power switching. The TUSB4041IPAPQ1 sits in the USB hub controller product hierarchy (USB 2.0 hub -> USB hub -> USB interface IC -> interface IC -> semiconductor) and is widely deployed in automotive infotainment, body electronics, and rear-seat entertainment systems.
Key features include integrated USB 2.0 high-speed PHY on every port, pin-strap configuration for battery-charging support, customization via OTP ROM, I2C EEPROM, or I2C/SMBus target interface for VID/PID/port/phy settings, optional upstream port indicator, and individual port power control with overcurrent sensing.
The device uses a single 3.3 V supply plus an internal 1.1 V core regulator generated by the on-chip LDO. Internal termination, pull-up/pull-down resistors, and a built-in 5 V VBUS load switch controller (external n-MOSFET required) simplify PCB design. Suspend and remote wakeup signaling are managed in hardware, reducing firmware complexity.
Typical applications include automotive head-unit USB ports, rear-seat entertainment hubs, body-control module USB service ports, industrial PC USB expansion, and embedded telematics USB interfaces. AEC-Q100 qualification makes the -Q1 device preferred for road-vehicle applications, while the non-Q1 TUSB4041IPAP serves commercial/industrial environments.
When designing with this part, place the external 24.576 MHz crystal (or oscillator) within 5 mm of the XI/XO pins and provide a continuous ground reference under the exposed thermal pad for thermal and EMI performance. Per-port 5 V VBUS switches must use a logic-level n-MOSFET driven by the integrated DP1PWR output to share load-current and fault indications with the host.
This page synthesizes distributor pricing for automotive-grade USB hubs, pin-compatible drop-in alternatives, and design considerations from the manufacturer datasheet not always highlighted on distributor listings.
Drop-in alternatives for TUSB4041IPAPQ1 — 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 TUSB4041IPAPQ1 (same form factor and footprint) — differing in Battery Charging Support, Configuration Interface, Package, Automotive Qualification, Crystal Frequency.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TUSB4041IPAPRQ1
✅ Drop-In✓ In Stock
$5.45 / Unit
View Datasheet →TUSB4041IPAP
✅ Drop-In📋 Reference alternative (not in catalog)
TUSB4041IPAPR
✅ Drop-In✓ In Stock
$2.33 / Unit
View Datasheet →TUSB4041IPAPQ1 Specifications
| Function | USB 2.0 Hub Controller |
| Number of Ports | 4 (3 downstream + 1 upstream) |
| USB Standard | USB 2.0 High-Speed |
| Maximum Data Rate | 480 Mbps (High-Speed) |
| Supply Voltage (VCC33) | 3.3 V |
| Core Voltage | 1.1 V (internal LDO) |
| Operating Temperature | -40C to +85C |
| Automotive Qualification | AEC-Q100 (Q1 suffix) |
| Package | 64-HTQFP (PAP) 10x10 mm with EP |
| Mounting Type | Surface Mount |
| MSL Level | 3 |
| Crystal Frequency | 24.576 MHz (external) |
| RoHS Status | Compliant |
| Configuration Interface | I2C / SMBus / OTP ROM / Pin-strap |
| Battery Charging Support | Yes (pin-strap selectable) |
TUSB4041IPAPQ1 64-htqfp (pap) 10x10 mm with ep Pin Configuration Guide
Pin configuration for TUSB4041IPAPQ1 (64-htqfp (pap) 10x10 mm with ep 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 TUSB4041IPAPQ1.
Refer to the datasheet for full pin configuration.
Typical Applications
TUSB4041IPAPQ1 is suitable for 6 applications: Automotive Head-Unit USB Hub, Rear-Seat Entertainment USB Port Expansion, Automotive Body Control Module Service Port, Industrial Panel PC USB Expansion, Embedded Telematics and Connectivity Module, Charging-Only Downstream Ports (CDP Mode).
Automotive Head-Unit USB Hub
The TUSB4041IPAPQ1 fits automotive head-unit USB hub designs because it provides four AEC-Q100-qualified USB 2.0 high-speed ports from one upstream connection, with each downstream port capable of 480 Mbps operation for Apple CarPlay, Android Auto, and media streaming. The integrated PHYs eliminate external USB transceiver chips, reducing PCB area and BOM cost in the head-unit chassis where space is constrained. With -40C to +85C automotive Grade 2 qualification and exposed-pad HTQFP package for thermal dissipation, the part handles the under-dash thermal environment when sourcing current to four portable devices simultaneously. Engineers typically pair the part with per-port n-MOSFET VBUS switches driven by the integrated DP1PWR control pins, supporting individual port overcurrent protection required by OEM acceptance gates.
Recommended
Rear-Seat Entertainment USB Port Expansion
The TUSB4041IPAPQ1 enables rear-seat entertainment systems to fan out one head-unit upstream USB link into multiple passenger-facing ports for tablets, game controllers, and HDMI-streaming dongles. Its 480 Mbps high-speed signaling is bandwidth-sufficient for Chromecast-style media sticks that draw video over USB; its split-transaction translation properly multiplexes isochronous USB audio to multiple headphones plugged in simultaneously. The AEC-Q100 qualification survives the cabin thermal environment that swings from sub-freezing startup to summer sun exposure. Embedded engineers rely on pin-strap configuration to enable per-port battery charging without writing firmware for standard phones, dramatically shortening validation cycles.
Recommended
Automotive Body Control Module Service Port
Body-control modules (BCMs) typically expose a USB service port for factory programming and dealership diagnostics; the TUSB4041IPAPQ1's AEC-Q100 grade and small 64-HTQFP footprint let the BCM PCB include this service interface without rebuilding the entire harness. When the BCM is sealed behind the dashboard, the integrated overcurrent and suspend-resume hardware of this hub reduces firmware maintenance overhead; diagnostic tools attach, enumerate, transfer firmware images at full 480 Mbps, and disconnect cleanly without leaving downstream ports orphaned. The exposed thermal pad lets the part ride the BCM ground plane for heat extraction during long programming sessions.
Recommended
Industrial Panel PC USB Expansion
Industrial panel PCs and HMIs often need four or more USB ports for barcode scanners, RFID readers, and printers; the TUSB4041IPAPQ1 supplies four USB 2.0 high-speed ports from the panel's single chipset USB connection. The HTQFP exposed-pad package sits comfortably on industrial Class B thermal designs, and the integrated battery-charging pin-strap mode lets the panel deliver tablet-style charging when phones are plugged into the operator display - a frequent industrial requirement. While non-automotive users typically select the TUSB4041IPAP (catalog) variant for cost, the Q1 grade remains in supply for plants with automotive-grade validation policies that apply across all equipment.
Recommended
Embedded Telematics and Connectivity Module
Telematics control units (TCUs) need USB connectivity for modem bring-up, fleet-management dongles, and service-port diagnostic interfaces; the TUSB4041IPAPQ1 fits by multiplexing these downstream links onto one upstream automotive Ethernet gateway or cellular modem SoC. The part's 1.1 V internal LDO with 3.3 V I/O lets designers share a single 3.3 V rail with the modem rather than provisioning a second low-voltage supply - a real PCB-area win in a sealed telematics enclosure. AEC-Q100 grade-2 qualification supports the under-seat or trunk-mounted TCU thermal envelope. The I2C/SMBus configuration interface lets telematics firmware reconfigure port personalities during fleet provisioning.
Recommended
Charging-Only Downstream Ports (CDP Mode)
For automotive and consumer charging hubs that need to support both data and 1.5 A dedicated-charging modes on each downstream port, the TUSB4041IPAPQ1's pin-strap battery-charging support is a compelling feature. Setting the BC_EN strap enables CDP mode advertising; downstream phones and tablets pull the maximum allowed current while still being able to enumerate for data. The integrated USB 2.0 transceivers preserve BC1.2 CDP handshake signals, and the per-port DP1PWR outputs coordinate with external n-MOSFET switches so charging current does not exceed the port's allocated budget. This makes the hub drop-in for after-market automotive chargers and restaurant/retail point-of-sale charging docks.
Recommended
Recommended Products Summary
Engineering reference data for TUSB4041IPAPQ1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TUSB4041IPAPRQ1 | TUSB4041IPAP | TUSB4041IPAPR |
|---|---|---|---|---|
| Package | 64-HTQFP (PAP) 10x10 mm | 64-HTQFP (PAP) 10x10 mm | 64-HTQFP (PAP) 10x10 mm | 64-HTQFP (PAP) 10x10 mm |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Number of Ports | 4 (3 DS + 1 US) | 4 (3 DS + 1 US) | 4 (3 DS + 1 US) | 4 (3 DS + 1 US) |
| USB Speed | 480 Mbps (High-Speed) | 480 Mbps (High-Speed) | 480 Mbps (High-Speed) | 480 Mbps (High-Speed) |
| Automotive Grade (AEC-Q100) | Yes (Q1) | Yes (Q1) | No (Catalog) | No (Catalog) |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Packaging Format | Tray | Tape and Reel | Tray | Tape and Reel |
| Battery Charging Support | Yes (pin-strap) | Yes (pin-strap) | Yes (pin-strap) | Yes (pin-strap) |
Key Differentiators
- AEC-Q100 Grade 2 qualification in identical footprint (vs TUSB4041IPAP)
- Integrated 4-port USB 2.0 PHY and hub controller (vs TUSB8041-Q1)
- On-die OTP, EEPROM, and SMBus configuration (vs External USB hub companion chip)
Design Notes
Place the 24.576 MHz crystal (or external oscillator) within 5 mm of the XI and XO pins with a continuous ground plane beneath. Keep the XI/XO traces short and surrounded by ground on both sides; the internal oscillator stage is sensitive to capacitive loading above the crystal's load specification, which manifests as frequency drift or USB enumeration failures at temperature. Per TI's datasheet layout guidance, the trace length and stray capacitance budget for these pins is approximately 1.5 pF maximum stray.
Estimated: at worst case VCC33 of 3.6 V delivering 4 x 1.0 A downstream through the internal PHYs and external VBUS switches, the part's internal dissipation is approximately 0.5-0.8 W. The 64-HTQFP with exposed pad and a 2 oz 4-layer PCB copper area of ~1 sq inch typically achieves theta_JA near 25-30 C/W. Solder the EP to a continuous ground paddle connected through at least 9 thermal vias to inner ground layers to keep junction temperature rise under 25C at 85C ambient.
Do not float the DP1PWR pins - they are push-pull control outputs that must drive the gate of an external n-MOSFET VBUS switch for each downstream port. Leaving them floating disables per-port overcurrent coordination, and the part will source the upstream VBUS through unintended paths. Also confirm that any RSVD pins on the package that TI labels as 'Reserved - leave N.C.' are truly not connected; some early reference designs tied them to ground, which prevents boot configuration. The pin-strap configuration settings are read at de-assertion of RESET - ensure RESET is held low for at least 1 ms after VCC33 and 1.1 V reach valid levels.
D+/D- pairs to each downstream port and to the upstream port must be routed as 90-ohm differential traces with intra-pair skew below 50 ps; mismatched impedance causes USB compliance failure at high-speed (480 Mbps). Use the smallest possible number of via transitions (preferably zero) on the D+/D- pairs. Place a common-mode choke (e.g., ACM2012) right at the connector to suppress conducted EMI, and pair it with a TPD2EUSB30 protection device for 8 kV contact discharge robustness on customer-accessible ports.
Compliance Information
RoHS compliant per TI product page. AEC-Q100 Grade 2 qualified (automotive Q1 grade). REACH compliant per distributor data.
