Texas Instruments TUSB4041IPAPR

Overview

TUSB4041IPAPR from Texas Instruments is a four-port USB 2.0 hub IC with Multi-Transaction Translator (MTT) architecture, supporting high-speed (480 Mbps), full-speed (12 Mbps), and low-speed (1.5 Mbps) downstream connectivity. It integrates per-port/ganged power switching, USB Battery Charging (BC) 1.2-compliant CDP/DCP modes, and YD/T 1591-2009 DCP compliance for Chinese market deployments. Used in docking stations and industrial monitors requiring robust, configurable USB expansion.

For engineers reviewing the TUSB4041IPAPR datasheet, TUSB4041IPAPR pinout, TUSB4041IPAPR application, or TUSB4041IPAPR equivalent, key selection criteria include MTT-based bandwidth isolation, OTP/I²C/SMBus programmability of VID/PID/port strings, 64-pin HTQFP thermal performance, and battery charging mode configurability via PWRCTL/BATEN pins and register settings.

Technical Context

The TUSB4041IPAPR implements a true MTT hub architecture with four independent transaction translators and four asynchronous endpoint buffers per translator-enabling simultaneous high-bandwidth transfers across downstream ports without inter-port contention. Its upstream port dynamically enables or disables high-speed downstream capability based on upstream electrical environment detection (HS_UP status).

Power management is implemented via configurable PWRCTL[4:1]/BATEN[4:1] pins with polarity control (PWRCTL_POL), supporting both per-port and ganged switching modes selected at reset via GANGED/SMBA2. Battery charging logic operates autonomously using AUTOENz/HS_SUSPEND and internal registers (REG_6h, REG_Ah) to select CDP, DCP, or auto-divider mode based on VBUS presence and device attachment.

Key Specifications

Pinout & Package

64-pin HTQFP (PAP) package with exposed thermal pad connected to ground; 0.5-mm pitch, 12 mm × 12 mm body size, RoHS-compliant lead finish.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar USB 2.0 hub applications.

Compared with USB2514B-AEZG and UPD720114GA-YCB-AX, the TUSB4041IPAPR uniquely combines MTT bandwidth isolation, YD/T 1591-2009 DCP compliance, OTP-based VID/PID storage, and 64-pin HTQFP thermal efficiency - making it optimal for industrial docks and regulated regional deployments.

Availability

TUSB4041IPAPR is available at Aetrix Electronics and suitable for computer docking stations, industrial monitors, set-top box expansion, and automated retail kiosks requiring stable component supply, long-term lifecycle support, and industrial temperature qualification.

Supply support for TUSB4041IPAPR 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 technologies with over 50 years of innovation in industrial, automotive, and communications markets.

The TUSB4041IPAPR belongs to TI's USB 2.0 Hub product line, engineered for high-reliability embedded systems requiring certified battery charging, flexible configuration, and robust thermal performance in space-constrained designs.

FAQ

What USB speed modes does the TUSB4041IPAPR support on its downstream ports?

The TUSB4041IPAPR supports high-speed (480 Mbps), full-speed (12 Mbps), and low-speed (1.5 Mbps) on all four downstream ports. Upstream port supports high-speed and full-speed only. Downstream high-speed capability is automatically disabled when the upstream port detects only full-speed/low-speed signaling - ensuring strict USB 2.0 specification compliance without manual configuration. This behavior is hardwired in the TUSB4041IPAPR's link layer logic.

How is battery charging configured on the TUSB4041IPAPR?

Battery charging on the TUSB4041IPAPR is configured per port using PWRCTL1–4/BATEN1–4 pins sampled at reset, combined with register settings (REG_6h, REG_Ah). The TUSB4041IPAPR supports CDP (when upstream is connected), DCP (when upstream is disconnected and compliant with YD/T 1591-2009), and auto-divider mode. No host driver is needed - charging negotiation occurs autonomously in hardware.

Does the TUSB4041IPAPR require an external crystal or can it use an oscillator?

The TUSB4041IPAPR accepts either a 24 MHz crystal (connected between XI and XO pins with 1 MΩ feedback resistor) or a 24 MHz CMOS oscillator (driving XI only, with XO left unconnected). Both options meet the timing accuracy and jitter requirements for USB 2.0 high-speed operation. The TUSB4041IPAPR does not support frequency synthesis or PLL-based clock generation.

What package type and thermal characteristics does the TUSB4041IPAPR have?

The TUSB4041IPAPR is packaged in a 64-pin HTQFP (PAP) with an exposed thermal pad. Its thermal metrics include RθJA = 26.2°C/W, RθJB = 10.4°C/W, and RθJC(bot) = 0.6°C/W. The thermal pad must be soldered to a solid ground plane for effective heat dissipation. This package enables reliable operation up to 105°C junction temperature in industrial applications.

Can the TUSB4041IPAPR be programmed in-system without removing it from the PCB?

Yes, the TUSB4041IPAPR supports in-system programming of OTP ROM and external I²C EEPROM through its USB 2.0 upstream port using vendor-defined USB requests. TI provides programming tools and documentation for secure field updates of VID/PID, manufacturer/product strings, and port configurations - eliminating the need for socketed programming or rework during manufacturing or service.