Overview
The TUSB2046BIRHBRQ1 is a 4-port full-speed Universal Serial Bus (USB) hub controller produced by Texas Instruments. This device is part of the TUSB2046x family and is designed to be fully compliant with the USB specification as a full-speed hub. It features a 3.3-V CMOS implementation with integrated USB transceivers for all upstream and downstream ports, eliminating the need for firmware programming due to its digital state machine design.
Key Specifications
| Specification | Value |
|---|---|
| Package Type | 32-VQFN (RHB) |
| Pins | 32 |
| Operating Temperature Range (°C) | -40 to 85 |
| Package Pin Pitch | 0.8 mm |
| Logic Voltage | 3.3 V |
| Upstream Ports | 1 |
| Downstream Ports | 4 (Full-Speed and Low-Speed) |
| Power Source Modes | Self-Powered, Bus-Powered |
| Clock Source | 6 MHz or 48 MHz |
| Junction Temperature Range (°C) | -40 to 115 |
Key Features
- Fully compliant with the USB specification as a full-speed hub
- Integrated USB transceivers for all ports
- No firmware programming required due to digital state machine implementation
- Supports full-speed and low-speed operations on all downstream ports
- Two power source modes: self-powered and bus-powered
- Power switching and overcurrent reporting provided ganged or per port
- Supports suspend and resume operations
- Programmable Vendor ID and Product ID with external serial EEPROM
- Push-pull outputs for PWRON eliminate the need for external pullup resistors
- Noise filtering on OVRCUR provides immunity to voltage spikes
- Low EMI emission achieved by a 6-MHz crystal input
- Enhanced system ESD performance
- No special driver requirements; works seamlessly with any operating system with USB stack support
Applications
- Computer Systems
- Docking Stations
- Other USB-based peripherals and hubs requiring multiple downstream ports
Q & A
- What is the TUSB2046BIRHBRQ1?
The TUSB2046BIRHBRQ1 is a 4-port full-speed USB hub controller produced by Texas Instruments.
- What are the key features of the TUSB2046BIRHBRQ1?
Key features include integrated USB transceivers, no firmware programming required, support for full-speed and low-speed operations, and power switching and overcurrent reporting.
- What are the power source modes supported by the TUSB2046BIRHBRQ1?
The device supports both self-powered and bus-powered modes.
- How does the TUSB2046BIRHBRQ1 manage power switching and overcurrent detection?
Power switching and overcurrent detection can be managed either ganged (all ports together) or on a per-port basis.
- Does the TUSB2046BIRHBRQ1 require any special drivers?
No, it works seamlessly with any operating system that has USB stack support.
- What clock sources can the TUSB2046BIRHBRQ1 use?
The device can use either a 6-MHz or a 48-MHz clock source.
- How does the TUSB2046BIRHBRQ1 achieve low EMI emission?
Low EMI emission is achieved by using a 6-MHz crystal input.
- What is the operating temperature range of the TUSB2046BIRHBRQ1?
The operating temperature range is -40°C to 85°C.
- What package types are available for the TUSB2046BIRHBRQ1?
The device is available in a 32-pin VQFN package.
- What are some common applications of the TUSB2046BIRHBRQ1?
Common applications include computer systems and docking stations.
