Overview
The TUSB8020BPHPR is a two-port USB 3.0 compliant hub produced by Texas Instruments. It supports simultaneous SuperSpeed USB and high-speed/full-speed connections on the upstream port, and provides SuperSpeed USB, high-speed, full-speed, or low-speed connections on the downstream ports. The device is designed to operate seamlessly in various environments, adapting to the electrical conditions of the upstream port to ensure optimal performance.
The hub is available in both commercial and industrial versions, with the commercial version (TUSB8020B) operating over a temperature range of 0°C to 70°C and the industrial version (TUSB8020BI) operating over a range of –40°C to 85°C.
Key Specifications
| Parameter | Description |
|---|---|
| Package | 48-Pin HTQFP (PHP) |
| Operating Temperature Range | 0°C to 70°C (Commercial), –40°C to 85°C (Industrial) |
| USB Compliance | USB 3.0, USB 2.0 |
| Downstream Ports | Two ports supporting SuperSpeed, high-speed, full-speed, or low-speed connections |
| Power Management | Per port or ganged power switching and overcurrent protection |
| Configuration Interface | I2C EEPROM or I2C/SMBus slave interface |
| Clock Input | 24-MHz crystal or oscillator |
| Power Rails | 1.1-V and 3.3-V power rails |
Key Features
- Multi-Transaction Translator (MTT) Hub with two transaction translators and four asynchronous endpoint buffers per translator
- Supports battery charging with CDP (Charging Downstream Port) and DCP (Dedicated Charging Port) modes, compliant with USB Battery Charging Specification Revision 1.2 and Chinese Telecommunications Industry Standard YD/T 1591-2009
- Automatic mode for transparent support of BC devices and devices supporting Divider Mode charging solutions
- Per port or ganged power switching and overcurrent notification inputs
- One-Time Programmable (OTP) ROM, I2C EEPROM, or I2C/SMBus slave interface for custom configurations
- Provides 128-bit Universally Unique Identifier (UUID)
- No special driver requirements; works seamlessly on any operating system with USB stack support
Applications
- Computer Systems
- Docking Stations
- Monitors
- Set-Top Boxes
Q & A
- What is the TUSB8020BPHPR?
The TUSB8020BPHPR is a two-port USB 3.0 compliant hub produced by Texas Instruments.
- What are the operating temperature ranges for the TUSB8020B and TUSB8020BI?
The commercial version (TUSB8020B) operates from 0°C to 70°C, and the industrial version (TUSB8020BI) operates from –40°C to 85°C.
- What types of USB connections does the TUSB8020B support?
The TUSB8020B supports SuperSpeed USB, high-speed, full-speed, and low-speed connections.
- How does the power management work on the TUSB8020B?
The TUSB8020B supports per port or ganged power switching and overcurrent protection.
- What configuration interfaces are available on the TUSB8020B?
The device supports configuration through OTP ROM, I2C EEPROM, or an I2C/SMBus slave interface.
- Does the TUSB8020B require special drivers?
No, the TUSB8020B works seamlessly on any operating system with USB stack support without requiring special drivers.
- What battery charging modes does the TUSB8020B support?
The TUSB8020B supports CDP (Charging Downstream Port) and DCP (Dedicated Charging Port) modes, as well as an automatic mode for BC devices and devices supporting Divider Mode charging solutions.
- What is the package type and pin count of the TUSB8020B?
The TUSB8020B is available in a 48-pin HTQFP package.
- What are some common applications for the TUSB8020B?
Common applications include computer systems, docking stations, monitors, and set-top boxes.
- How does the TUSB8020B handle overcurrent events?
During an overcurrent event, the TUSB8020B can switch off power to either the affected downstream port (in individual port power control mode) or all downstream ports (in ganged power control mode).
