Overview
The TUSB2046IBVF is a 4-port USB hub controller produced by Texas Instruments. This device is a 3.3-V CMOS hub that complies with the Universal Serial Bus (USB) specification, supporting one upstream port and four downstream ports. It is designed to operate as a full-speed hub, integrating fully compliant USB transceivers for all ports. The TUSB2046IBVF is implemented with a digital state machine, eliminating the need for firmware programming. It supports both bus-powered and self-powered modes, with configurable power management options.
Key Specifications
| Parameter | Min | Nom | Max | Unit |
|---|---|---|---|---|
| VCC Supply Voltage | 3 | 3.3 | 3.6 | V |
| Operating Free-Air Temperature (TUSB2046B) | 0 | 70 | °C | |
| Operating Free-Air Temperature (TUSB2046BI, TUSB2046I) | -40 | 85 | °C | |
| Storage Temperature Range | -65 | 150 | °C | |
| Number of Ports | 5 | (1 Upstream, 4 Downstream) | ||
| Package Type | LQFP-32 (7x7 mm) | |||
| Clock Frequency | 6 MHz or 48 MHz |
Key Features
- One upstream port and four downstream ports, all supporting full-speed and low-speed operations.
- Integrated USB transceivers for all ports.
- No firmware programming required due to digital state machine implementation.
- Supports both bus-powered and self-powered modes.
- Configurable power switching and overcurrent detection (ganged or per-port basis).
- Supports suspend and resume operations.
- Programmable Vendor ID and Product ID using external serial EEPROM.
- Low EMI emission achieved with 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 peripheral devices requiring hub functionality.
Q & A
- What is the TUSB2046IBVF? The TUSB2046IBVF is a 4-port USB hub controller produced by Texas Instruments.
- What are the supported operating modes? It supports both bus-powered and self-powered modes.
- Does the TUSB2046IBVF require firmware programming? No, it does not require firmware programming due to its digital state machine implementation.
- What are the supported clock frequencies? The device can operate with either a 6-MHz or a 48-MHz clock.
- What is the package type of the TUSB2046IBVF? It comes in a 32-pin LQFP package (7x7 mm).
- What are the key features of the TUSB2046IBVF? Key features include integrated USB transceivers, configurable power management, support for suspend and resume operations, and enhanced ESD performance.
- What are the typical applications of the TUSB2046IBVF? Typical applications include computer systems and docking stations.
- Does the TUSB2046IBVF support full-speed and low-speed devices? Yes, all downstream ports support both full-speed and low-speed devices.
- How does the power management work on the TUSB2046IBVF? Power management can be configured on a ganged or per-port basis, with support for overcurrent detection.
- Is the TUSB2046IBVF compatible with all operating systems? Yes, it works seamlessly with any operating system that has USB stack support.
