Overview
The TUSB8020B-Q1 is a two-port USB 3.0 compliant hub designed by Texas Instruments. This device 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. It is particularly suited for applications requiring advanced USB connectivity and power management.
The hub operates within an industrial temperature range of -40°C to 85°C and is available in a 48-terminal HTQFP package. It supports various battery charging protocols, including USB Battery Charging Specification Revision 1.2 and the Chinese Telecommunications Industry Standard YD/T 1591-2009.
The TUSB8020B-Q1 also features per port or ganged power switching and over-current protection, enhancing system reliability and fault tolerance. Customization options include OTP ROM, serial EEPROM, or I2C/SMBus slave interface for configuring VID, PID, and other port settings.
Key Specifications
| Function | USB3 | USB Speed (MBits) | Supply Voltage (V) | Operating Temperature Range (°C) | Package Type | Pins |
|---|---|---|---|---|---|---|
| Hub | Yes | 5000 | 1.1, 3.3 | -40 to 85 | HTQFP | 48 |
Key Features
- Two-port USB 3.0 compliant hub with simultaneous SuperSpeed USB and high-speed/full-speed connections.
- Supports USB Battery Charging Specification Revision 1.2 and Chinese Telecommunications Industry Standard YD/T 1591-2009.
- Per port or ganged power switching and over-current protection.
- Multi Transaction Translator (MTT) Hub with two transaction translators and four asynchronous endpoint buffers per transaction translator.
- Low-power consumption and thermal management.
- Improved system reliability and fault tolerance.
- Advanced Power-On Self-Test (POST) capabilities.
- Customization through OTP ROM, I2C EEPROM, or I2C/SMBus slave interface.
- No special driver requirements; works seamlessly on any operating system with USB stack support.
Applications
The TUSB8020B-Q1 is suitable for a variety of applications, including:
- Automotive systems requiring robust and reliable USB connectivity.
- Industrial control systems that need advanced power management and fault tolerance.
- Consumer electronics such as USB hubs, docking stations, and charging stations.
- Medical devices that require reliable and high-speed USB connections.
- Embedded systems where low power consumption and thermal management are critical.
Q & A
- What is the operating temperature range of the TUSB8020B-Q1?
The operating temperature range is -40°C to 85°C.
- What types of USB connections does the TUSB8020B-Q1 support?
The TUSB8020B-Q1 supports SuperSpeed USB, high-speed, full-speed, and low-speed connections.
- Does the TUSB8020B-Q1 support battery charging protocols?
Yes, it supports USB Battery Charging Specification Revision 1.2 and the Chinese Telecommunications Industry Standard YD/T 1591-2009.
- How does the power switching work on the TUSB8020B-Q1?
The hub supports per port or ganged power switching and over-current protection.
- Can the TUSB8020B-Q1 be customized?
Yes, customization is possible through OTP ROM, I2C EEPROM, or I2C/SMBus slave interface.
- What package type is the TUSB8020B-Q1 available in?
The device is available in a 48-terminal HTQFP package.
- Does the TUSB8020B-Q1 require special drivers?
No, it works seamlessly on any operating system with USB stack support.
- What is the significance of the Multi Transaction Translator (MTT) Hub feature?
The MTT Hub feature includes two transaction translators and four asynchronous endpoint buffers per transaction translator, enhancing the hub's performance and reliability.
- How does the TUSB8020B-Q1 manage thermal issues?
The device features low-power consumption and thermal management capabilities.
- What are some common applications for the TUSB8020B-Q1?
Common applications include automotive systems, industrial control systems, consumer electronics, medical devices, and embedded systems.
