TUSB1044IRNQT

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TUSB1044IRNQT

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Especificações

Atributo Valor
Supplier Texas Instruments
Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
Type Buffer, ReDriver
Applications USB Type C
DataRate(Max) 10Gbps
NumberofChannels 4
DelayTime 160ps
SignalConditioning Input Equalization, Output De-Emphasis
Capacitance-Input 5 pF
Voltage-Supply 3V ~ 3.6V
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 40-WFQFN Exposed Pad

Visão Geral

Description

The TUSB1044IRNQT is a Texas Instruments USB hub controller that implements a USB Type-C capable 4-port hub. It provides one upstream (host) port and four downstream USB 2.0 ports, with an integrated hub core and CC logic for Type-C orientation/role negotiation. Configuration is via an I2C interface, and the device includes per-port VBUS power-switching, overcurrent protection, and basic power management/ESD protection. It is intended for USB-C hubs, docking stations, and other USB expansion peripherals requiring a compact, single-chip solution. The IRNQT suffix denotes a TI packaging/variant. For exact electrical specs, current per port, timing, and recommended evaluation modules, refer to the TI datasheet and EVM guide.

Features

Here are the core features of TI TUSB1044IRNQT (concise):
- 4 downstream USB 2.0 ports plus 1 upstream USB 2.0 port (Hi-Speed 480 Mbps)
- USB hub controller with built-in hub logic (enumeration and port management)
- Flexible power: self-powered or bus-powered operation
- Per-port power switches with overcurrent protection
- ESD protection on all USB ports
- I2C/SMBus control interface for configuration, monitoring, and status
- Per-port power management and device connection/disconnection handling
- USB 2.0 compliant (Full/High-Speed compatibility)
- Compact QFN package (IRNQT) with RoHS-compliant process
- Suitable for hubs, docking stations, and peripheral hubs
Note: Exact electrical specs (current limits, LED indicators, wake features, thermal data) depend on the specific device revision and configuration.

Pinout

- Pin count: 28 pins (QFN-28, standard package for TUSB1044IRNQT).
- Function: USB Type-C port controller with CC logic, VBUS/VCONN control, and an integrated high-speed crosspoint switch for USB 3.1 Gen 2 (and DP Alt Mode) signaling.

Manufacturer

- Manufacturer: Texas Instruments Incorporated (TI).
- What kind of company: A global semiconductor company that designs and manufactures analog, mixed-signal, and embedded processing integrated circuits used in a wide range of electronics.

Application

TUSB1044IRNQT is a 4-port USB 2.0 hub controller. Typical application areas:
- USB expansion for desktop PCs, laptops, and notebooks
- Docking stations and USB port replication hubs
- Consumer electronics and home-AV devices (set-top boxes, TVs, gaming peripherals)
- Embedded systems, industrial equipment, POS terminals requiring multiple USB ports
- Evaluation boards and development platforms using a hub reference design
Note: use as a self-contained hub solution to add four downstream USB ports from a single upstream connection.

Package

QFN (Quad Flat No-Lead) package, typically 24-pin (4×4 mm), RoHS-compliant.

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