Overview
The TUSB2046BIRHBR is a 4-port USB hub device manufactured by Texas Instruments. It is designed to comply with the Universal Serial Bus (USB) specification as a full-speed hub, providing one upstream port and four downstream ports. This device is implemented with a digital state machine, eliminating the need for firmware programming. The TUSB2046BIRHBR integrates fully compliant USB transceivers for all upstream and downstream ports, supporting both full-speed and low-speed devices by automatically adjusting the slew rate based on the attached device's speed.
Key Specifications
| Parameter | Min | Nom | Max | Unit |
|---|---|---|---|---|
| VCC Supply Voltage | 3 | 3.3 | 3.6 | V |
| Operating Free-Air Temperature | -40 | 85 | °C | |
| Storage Temperature Range | -65 | 150 | °C | |
| ESD Ratings (HBM) | ±4000 | V | ||
| ESD Ratings (CDM) | ±1500 | V | ||
| Package Type | VQFN (RHB) | |||
| Number of Pins | 32 | |||
| Package Size | 5.00 mm × 5.00 mm |
Key Features
- One upstream port and four downstream ports, all supporting full-speed and low-speed operations.
- 3.3-V CMOS logic with integrated USB transceivers.
- No firmware programming required due to digital state machine implementation.
- Supports bus-powered and self-powered modes with configurable power management (individual-port or ganged-port).
- Power switching and overcurrent reporting with noise filtering on OVRCUR.
- Supports suspend and resume operations.
- Programmable Vendor ID and Product ID with 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.
- Laptops and desktop computers.
- Peripheral devices.
Q & A
- What is the TUSB2046BIRHBR? The TUSB2046BIRHBR is a 4-port USB hub device manufactured by Texas Instruments, designed to comply with the Universal Serial Bus (USB) specification as a full-speed hub.
- How many ports does the TUSB2046BIRHBR have? It has one upstream port and four downstream ports.
- What types of devices does the TUSB2046BIRHBR support? It supports both full-speed and low-speed devices.
- Does the TUSB2046BIRHBR require firmware programming? No, it does not require firmware programming due to its digital state machine implementation.
- What are the power management modes of the TUSB2046BIRHBR? It supports bus-powered and self-powered modes with either individual-port or ganged-port power management.
- How does the TUSB2046BIRHBR handle overcurrent conditions? It provides power switching and overcurrent reporting with noise filtering on OVRCUR, and can manage power on a per-port or ganged-port basis.
- What is the operating temperature range of the TUSB2046BIRHBR? The operating temperature range is -40°C to 85°C.
- What package type and size does the TUSB2046BIRHBR come in? It comes in a VQFN (RHB) package with 32 pins and a size of 5.00 mm × 5.00 mm.
- Does the TUSB2046BIRHBR require special drivers? No, it works seamlessly with any operating system that has USB stack support.
- What are some common applications of the TUSB2046BIRHBR? Common applications include computer systems, docking stations, laptops, desktop computers, and peripheral devices.
