Product details


Function USB2 USB speed (Mbps) 480 Supply voltage (V) 1.1, 3.3 Rating Catalog Operating temperature range (C) -40 to 85 open-in-new Find other USB hubs & controllers

Package | Pins | Size

HTQFP (PHP) 48 81 mm² 9 x 9 open-in-new Find other USB hubs & controllers


  • Two-Port USB 2.0 Hub
  • USB 2.0 Hub Features
    • Multi-Transaction Translator (MTT) Hub: Two Transaction Translators
    • Four Asynchronous Endpoint Buffers per Transaction Translator
  • Type C Compatible
  • Supports Battery Charging
    • CDP Mode (Upstream Port Connected)
    • DCP Mode (Upstream Port Unconnected)
    • DCP Mode Complies With Chinese Telecommunications Industry Standard YD/T 1591-2009
    • D+/D– Divider Mode
  • Per Port or Ganged Power Switching and Overcurrent Notification Inputs
  • OTP ROM, Serial EEPROM, or I2C/SMBus Slave Interface for Custom Configurations:
    • VID and PID
    • Port Customizations
    • Manufacturer and Product Strings (Not by OTP ROM)
    • Serial Number (Not by OTP ROM)
  • Application Feature Selection Using Terminal Selection or EEPROM/ or I2C/SMBus Slave Interface
  • Provides 128-Bit Universally Unique Identifier (UUID)
  • Supports On-Board and In-System OTP/EEPROM Programming Through the USB 2.0 Upstream Port
  • Single Clock Input, 24-MHz Crystal or Oscillator
  • No Special Driver Requirements; Works Seamlessly on any Operating System With USB Stack Support
  • 48-Pin HTQFP Package (PHP)

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The TUSB4020BI is a two-port USB 2.0 hub. It provides USB high-speed/full-speed connections on the upstream port and provides high-speed, full-speed, or low-speed connections on the two downstream ports. When the upstream port is connected to an electrical environment that supports high-speed and full-speed/low-speed connections, high-speed and full-speed/low-speed USB connectivity is enabled on the downstream ports. When the upstream port is connected to an electrical environment that only supports full-speed/low-speed connections, high-speed connectivity are disabled on the downstream ports.

The TUSB4020BI supports per port or ganged power switching and overcurrent protection.

An individually port power controlled hub switches power on or off to each downstream port as requested by the USB host. Also when an individually port power controlled hub senses an over-current event, only power to the affected downstream port will be switched off.

A ganged hub switches on power to all its downstream ports when power is required to be on for any port. The power to the downstream ports is not switched off unless all ports are in a state that allows power to be removed. Also when a ganged hub senses an overcurrent event, power to all downstream ports will be switched off.

The TUSB4020BI downstream ports provide support for battery charging applications by providing battery charging connected downstream port (CDP) handshaking support. It also supports a dedicated charging port (DCP) mode when the upstream port is not connected. The DCP mode supports USB devices which support the USB Battery Charging and the Chinese Telecommunications Industry Standard YD/T 1591-2009. In addition, an automatic mode provides transparent support for BC devices and devices supporting Divider Mode charging solutions when the upstream port is unconnected.

The TUSB4020BI provides terminal strap configuration for some features including battery charging support, and also provides customization though OTP ROM, I2C EEPROM or through an I2C/SMBus slave interface for PID, VID, and custom port and phy configurations. Custom string support is also available when using an I2C EEPROM or the I2C/SMBus slave interface.

The device is available in a 48-pin HTQFP package and is offered in an industrial version for operation over the temperature range of –40°C to 85°C.

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Technical documentation

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Type Title Date
* Datasheet TUSB4020BI Two-Port USB 2.0 Hub datasheet (Rev. C) Apr. 04, 2018
Application notes TI USB Hubs: Adjusting USB_R1 Aug. 14, 2018
Application notes TUSB4020BI Schematic Checklist Aug. 13, 2018
Application notes High-Speed Layout Guidelines for Signal Conditioners and USB Hubs Jun. 14, 2018
User guides TUSB4020BPHP Evaluation Module Jun. 19, 2015

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

document-generic User guide

The Texas Instruments TUSB4020B evaluation module is a functional board design of a single device that implements a USB 2.0 hub. The EVM can support USB 2.0 (HS, FS, and LS) operation on its USB ports. This EVM is intended for use in evaluating system compatibility, developing optional EEPROM (...)

  • Plug and play design
  • Can be configured using an optional serial EEPROM or SMBUS host
  • Local I2C Access through USB Interface via TUSB3410
  • A DC Power Jack (J9) to accept a 5-V wall power adapter
  • Configuration available through dip Switch

Design tools & simulation

SPICE-based analog simulation program
TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
document-generic User guide

Reference designs

Two-Port Automotive USB 2.0 Hub With Short-to-Battery Protection Reference Design
TIDA-00845 — TIDA-00845 is a dual-port USB 2.0 hub with the ability to withstand a short of up to 18-V DC on both downstream ports, as well as Level 4 IEC 61000-4-2 ESD protection, overcurrent conditions, and shorts to ground. This protection is provided by an integrated protection device - the TPD3S714-Q1 (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
HTQFP (PHP) 48 View options

Ordering & quality

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