TUSB4041IPAPR - 4-Port USB 2.0 480-Mbps Hub | Texas Instruments
MPN: TUSB4041IPAPR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.46 | $4.46 |
| 10 | $3.96 | $39.60 |
| 100 | $3.42 | $342.00 |
| 500 | $3.05 | $1,525.00 |
| 1,000 | $2.7 | $2,700.00 |
| 3,000 | $2.33 | $6,990.00 |
TUSB4041IPAPR Overview
A USB 2.0 hub controller is a serial-interface bridge that aggregates one upstream USB port into multiple downstream ports while managing the protocol handshakes, transaction translation, and per-port power control dictated by the USB 2.0 specification. It sits within the broader hierarchy of USB controllers -> interface ICs -> power management and connectivity silicon -> mixed-signal semiconductors. The TUSB4041I family supports both self-powered and bus-powered configurations, with integrated USB transceivers and optional battery-charging detection on downstream ports.
Key features include 480-Mbps high-speed upstream operation, per-port over-current protection flags, integrated 1.5-kV ESD on USB signal lines, support for compound devices, and I2C/EEPROM configurability for vendor ID (VID), product ID (PID), and port-remap policy. Per-port power-switch control outputs enable ganged or individual port-power switching without external glue logic.
The device integrates a UTMI+ low-pin-interface (ULPI) or integrated transceiver variant, a serial-interface engine, and a protocol layer that handles split transactions for full-/low-speed peripherals attached to high-speed upstream links. The HTQFP-64 footprint provides ample ground and power pins for signal-integrity routing on 2-layer consumer-grade boards.
Typical applications include USB port expansion on industrial PCs, docking stations, monitors with built-in USB hubs, embedded HMI panels, and POS terminals. The industrial temperature range and integrated charge-detection features also make it a strong fit for automotive-infotainment accessories and medical USB peripherals. When designing with this part, place 27 ohm series termination resistors close to the USB DP/DM pins and provide adequate bulk capacitance on each downstream VBUS rail managed by the controller's power-switch enables.
Drop-in alternatives for TUSB4041IPAPR — 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 TUSB4041IPAPR (same form factor and footprint) — differing in Package, Battery Charging Support, Configuration Interface, Function, MSL Level.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TUSB4041IPAPQ1
✅ Drop-In✓ In Stock
$3.85 / Unit
View Datasheet →TUSB4041IPAPQ1
✅ Drop-In✓ In Stock
$3.85 / Unit
View Datasheet →TUSB4020BIPHP
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
TUSB4041IPAPR Specifications
| Protocol | USB 2.0 |
| Function | USB Hub Controller |
| Number of Downstream Ports | 4 |
| Upstream Speed | High-Speed (480 Mbps) / Full-Speed (12 Mbps) |
| Downstream Speed Support | High-Speed / Full-Speed / Low-Speed |
| Supply Voltage | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +85C (Industrial) |
| Package | HTQFP-64 (PAP) 10x10 mm |
| Number of Pins | 64 |
| Mounting Type | Surface Mount |
| ESD Protection | 1.5 kV HBM on USB lines |
| Power-Switch Control Outputs | Yes (per port) |
| Battery Charging Support | Yes (BC1.2 CDP/SDP detection) |
| Configuration Interface | I2C / EEPROM |
| RoHS Status | Compliant |
| MSL Level | 3 (168 hours) |
TUSB4041IPAPR Pin Configuration
| Pin 1 | VDD33 — 3.3V supply voltage |
| Pin 2 | DP_UP — USB upstream port D+ data line |
| Pin 3 | DM_UP — USB upstream port D- data line |
| Pin 4 | VBUS_UP — USB upstream port VBUS sense |
| Pin 5 | ID — USB OTG ID pin (NC for hub application) |
| Pin 6 | GND — Ground |
| Pin 7 | R1 — Reference resistor 1 (connect 10 kohm to GND) |
| Pin 8 | GRSTz — Global reset, active low |
| Pin 9 | SCL — I2C clock for EEPROM configuration |
| Pin 10 | SDA — I2C data for EEPROM configuration |
| Pin 11 | PWRCTL1 — Downstream port 1 power switch control |
| Pin 12 | PWRCTL2 — Downstream port 2 power switch control |
| Pin 13 | PWRCTL3 — Downstream port 3 power switch control |
| Pin 14 | PWRCTL4 — Downstream port 4 power switch control |
| Pin 15 | OVC1 — Downstream port 1 overcurrent flag input |
| Pin 16 | OVC2 — Downstream port 2 overcurrent flag input |
| Pin 17 | OVC3 — Downstream port 3 overcurrent flag input |
| Pin 18 | OVC4 — Downstream port 4 overcurrent flag input |
| Pin 19 | DP1 — Downstream port 1 D+ data line |
| Pin 20 | DM1 — Downstream port 1 D- data line |
| Pin 21 | DP2 — Downstream port 2 D+ data line |
| Pin 22 | DM2 — Downstream port 2 D- data line |
| Pin 23 | DP3 — Downstream port 3 D+ data line |
| Pin 24 | DM3 — Downstream port 3 D- data line |
| Pin 25 | DP4 — Downstream port 4 D+ data line |
| Pin 26 | DM4 — Downstream port 4 D- data line |
| Pin 27 | GND — Ground |
| Pin 28 | VDD33 — 3.3V supply voltage |
| Pin 29 | XTAL1 — Crystal oscillator input (12 MHz) |
| Pin 30 | XTAL2 — Crystal oscillator output (12 MHz) |
| Pin 31 | CLK_OUT — Clock output (60 MHz reference) |
| Pin 32 | NC — Not connected (per datasheet) |
| Pin 33 | TEST — Test mode pin (tie to GND for normal operation) |
| Pin 34 | TMS — JTAG test mode select |
| Pin 35 | TCK — JTAG test clock |
| Pin 36 | TDI — JTAG test data input |
| Pin 37 | TDO — JTAG test data output |
| Pin 38 | TRSTz — JTAG test reset, active low |
| Pin 39 | GND — Ground |
| Pin 40 | VDD33 — 3.3V supply voltage |
| Pin 41 | PWRFLT — Power fault indicator output |
| Pin 42 | VBUS_SNS — VBUS sense for upstream port |
| Pin 43 | GND — Ground |
| Pin 44 | DP1_EN — Downstream port 1 USB 2.0 transceiver enable |
| Pin 45 | DM1_EN — Downstream port 1 USB 2.0 transceiver enable |
| Pin 46 | SPEED — Speed indicator / strap pin |
| Pin 47 | CFG_SEL — Configuration select (I2C vs strap mode) |
| Pin 48 | FULLPWR — Full-power hub mode strap |
| Pin 49 | NC — Not connected (per datasheet) |
| Pin 50 | NC — Not connected (per datasheet) |
| Pin 51 | GND — Ground |
| Pin 52 | VDD_PLL — PLL supply voltage (3.3V) |
| Pin 53 | NC — Not connected (per datasheet) |
| Pin 54 | NC — Not connected (per datasheet) |
| Pin 55 | NC — Not connected (per datasheet) |
| Pin 56 | NC — Not connected (per datasheet) |
| Pin 57 | GND — Ground |
| Pin 58 | NC — Not connected (per datasheet) |
| Pin 59 | NC — Not connected (per datasheet) |
| Pin 60 | NC — Not connected (per datasheet) |
| Pin 61 | NC — Not connected (per datasheet) |
| Pin 62 | GND — Ground |
| Pin 63 | NC — Not connected (per datasheet) |
| Pin 64 | NC — Not connected (per datasheet) |
Typical Applications
TUSB4041IPAPR is suitable for 7 applications: Industrial PC USB Port Expansion, Docking Station USB Hub, Monitor with Built-in USB Hub, Embedded HMI Panel USB Connectivity, POS Terminal USB Peripherals, Automotive Infotainment USB Accessory Hub, Medical USB Device Aggregation.
Industrial PC USB Port Expansion
The TUSB4041IPAPR is well-suited for industrial PCs and embedded box computers that need to expose 4 USB 2.0 ports from a single upstream header. With 480 Mbps high-speed upstream support and industrial-grade -40C to +85C operation, the controller reliably handles USB peripherals such as keyboards, mice, barcode scanners, and serial adapters across factory-floor temperature swings. The per-port power-switch control outputs (PWRCTL1-4) interface directly with discrete load switches to provide overcurrent-protected VBUS rails. Compared to smaller 2-port hubs, the 4-port TUSB4041IPAPR eliminates the need to daisy-chain multiple hub ICs, simplifying PCB layout and BOM cost. The integrated 1.5 kV HBM ESD on USB signal lines adds robustness against ESD events typical of factory-floor cabling.
Recommended
Docking Station USB Hub
Docking stations for laptops and tablets typically aggregate multiple USB peripherals into a single upstream USB connection, and the TUSB4041IPAPR provides exactly this function with 4 downstream ports at 480 Mbps. The I2C/EEPROM configurability lets OEMs customize the vendor ID (VID), product ID (PID), and port-remap policy so the dock enumerates correctly to the host OS without driver changes. The integrated BC1.2 battery-charging-detection logic enables downstream ports to charge mobile phones and tablets at elevated current levels without additional charging-controller ICs. Compared to hubs requiring an external ULPI PHY, the TUSB4041IPAPR's integrated transceivers reduce BOM count by 5-7 components and shrink the PCB footprint. Industrial-temperature rating also supports docking stations used in semi-outdoor kiosk applications.
Recommended
Monitor with Built-in USB Hub
Computer monitors with integrated USB hubs typically need 3-4 downstream ports to support the user's keyboard, mouse, webcam, and storage devices, and the TUSB4041IPAPR delivers exactly this port count in a single IC. The upstream port connects to the host PC via a USB Type-B or Type-C cable, while the downstream ports are exposed on the monitor's side or rear panel. Because the monitor may be powered off while the host PC remains on, the per-port power-switch control outputs allow the hub to remain bus-powered only when the monitor's main supply rail is active. The HTQFP-64 package's large thermal pad helps dissipate the IC's power dissipation across the monitor's metal backplate.
Recommended
Embedded HMI Panel USB Connectivity
Human-machine interface (HMI) panels in industrial automation frequently include USB ports for configuration downloads, firmware updates via USB stick, and connection to USB barcode scanners or RFID readers. The TUSB4041IPAPR's industrial temperature range (-40C to +85C) and high ESD tolerance (1.5 kV HBM) make it robust enough for panel-mount industrial environments where users plug and unplug cables frequently. The integrated per-port overcurrent flags (OVC1-4) feed back to the HMI's main microcontroller, allowing the firmware to detect and disable a faulted port without rebooting the panel. The HTQFP-64 package's generous ground/power pin count supports clean signal-integrity routing even on 2-layer PCBs common in cost-sensitive HMI designs.
Recommended
POS Terminal USB Peripherals
Point-of-sale (POS) terminals aggregate USB peripherals such as barcode scanners, receipt printers, cash-drawer kickers, and customer-facing displays, and the TUSB4041IPAPR provides the 4-port USB 2.0 hub function in a single chip. Its integrated BC1.2 charging-detection logic on downstream ports supports powering customer-facing tablet displays while simultaneously enumerating as USB devices. The I2C configurability allows the POS integrator to set custom VID/PID values so the hub appears as a vendor-branded composite device to the POS application software. Compared to USB 3.0 hubs, the TUSB4041IPAPR's USB 2.0 architecture eliminates SuperSignal routing complexity and reduces PCB layer count from 4 to 2, which is critical for cost-sensitive retail hardware.
Recommended
Automotive Infotainment USB Accessory Hub
Although the TUSB4041IPAPR itself is industrial-grade rather than AEC-Q100, it serves as the reference design foundation for the TUSB4041IPAPQ1 automotive variant used in head-unit accessory hubs and rear-seat entertainment USB port panels. The 4-port hub connects to the head-unit's USB host and exposes ports for passenger phones, USB media sticks, and HDMI/USB streaming dongles. The industrial-temp variant is also used in non-regulated vehicle applications such as agricultural equipment cabs, marine bridge consoles, and heavy-machinery operator stations. The integrated battery-charging-detection logic supports fast charging of passenger mobile devices at CDP current levels.
Recommended
Medical USB Device Aggregation
Medical diagnostic carts and patient-monitoring workstations aggregate USB peripherals such as barcode scanners, RFID badge readers, USB storage for patient-record exports, and connection cables to bedside sensors. The TUSB4041IPAPR's industrial temperature range and high ESD tolerance make it suitable for hospital environments where equipment is moved frequently and exposed to ESD from staff and patient interactions. The hub's I2C-configurable VID/PID enables medical OEMs to brand the hub as their own composite device, simplifying FDA documentation. Compared to USB 3.0 hubs, the USB 2.0 architecture avoids the more stringent signal-integrity routing requirements that would otherwise increase medical-device PCB cost and complexity.
Recommended
Recommended Products Summary
Engineering reference data for TUSB4041IPAPR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TUSB4041IPAPQ1 | TUSB4041IPAP | TUSB4020BIPHP |
|---|---|---|---|---|
| Package | HTQFP-64 (PAP) 10x10 mm | HTQFP-64 (PAP) 10x10 mm - same | HTQFP-64 (PAP) 10x10 mm - same | HTQFP-48 (PHP) 7x7 mm - smaller |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Number of Downstream Ports | 4 | 4 | 4 | 2 |
| Maximum Speed | 480 Mbps (USB 2.0 HS) | 480 Mbps | 480 Mbps | 480 Mbps |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C + AEC-Q100 | 0C to +70C (Commercial) | -40C to +85C (Industrial) |
| Automotive Grade (AEC-Q100) | No (industrial only) | Yes (AEC-Q100) | No | No |
| Supply Voltage | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
| ESD Protection (USB lines) | 1.5 kV HBM | 1.5 kV HBM | 1.5 kV HBM | 1.5 kV HBM |
| Battery Charging (BC1.2) | Yes (integrated) | Yes (integrated) | Yes (integrated) | Yes (integrated) |
Key Differentiators
- AEC-Q100 option in same footprint (vs TUSB4041IPAPQ1)
- Wider operating temperature than commercial variant (vs TUSB4041IPAP)
- Integrated BC1.2 charging detection (vs USB 2.0 hubs without charging support)
Design Notes
Place the 12 MHz crystal and its load capacitors within 5 mm of the XTAL1/XTAL2 pins. Keep the crystal traces away from DP/DM high-speed USB traces and surrounded by a ground pour to minimize EMI coupling. Route the 90-ohm differential DP/DM pairs with matched lengths (delta < 150 mil) and keep the 27-ohm series source termination resistors within 4 mm of the IC pins. Use a continuous ground plane on layer 2 to maintain controlled-impedance USB signaling - the TUSB4041 requires 90-ohm differential impedance with no stubs.
Estimated: each downstream port at full USB 2.0 high-speed load draws approximately 500 mW from the 3.3V rail; with 4 active ports the TUSB4041IPAPR itself dissipates around 600 mW internally. Provide a local 100 uF bulk + 0.1 uF + 10 uF ceramic decoupling network within 10 mm of each VDD33 pin. Use a dedicated LDO (e.g., TPS7A7002DDA) for the USB VDD supply to isolate the hub from digital logic rail noise. The PWRCTL outputs have 4 mA drive - choose external power switches (e.g., TPS2051B family) that operate from this signal level.
Common pitfalls: (1) Forgetting to populate the 10 kohm R1 reference resistor at the GRSTz pin - the part will not enumerate without it. (2) Connecting the upstream VBUS sense to a 5V rail rather than sensing actual VBUS presence, which causes enumeration failures when the host port is unpowered. (3) Leaving CFG_SEL floating - this must be tied high for I2C mode or low for strap mode at power-up. (4) Routing DP/DM as single-ended traces without maintaining 90-ohm differential impedance, causing USB-compliance test failures. (5) Using a non-12 MHz crystal with excessive load-capacitance rating, leading to frequency drift over temperature.
The HTQFP-64 (PAP) package has an exposed thermal pad that MUST be soldered to a ground pour of at least 1 square inch for rated operation. Estimated: at maximum 480-Mbps traffic across all 4 ports, the IC dissipates approximately 0.6 W internally. Without the thermal pad soldered, junction temperature rises by an additional 30-40 C, potentially exceeding 125C in enclosed industrial environments. Use 9 thermal vias (0.3 mm drill) in a 3x3 grid under the pad to conduct heat to an internal ground plane.
Compliance Information
RoHS and REACH compliant per TI product page. Industrial temperature grade - not AEC-Q100 qualified. For AEC-Q100 systems choose TUSB4041IPAPQ1 drop-in variant.
