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TUSB551

ACTIVE

USB 3.0 Single-Channel redriver with 1.8V Supply

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Data sheet

TUSB551

ACTIVE
Data sheet Order now

Product details

Type Redriver Function USB 3.0 USB speed (Mbps) 5000 Number of channels 1 Input/output voltage (min) (V) 0 Input/output voltage (max) (V) 1.2 Configuration Single-channel Features Single Channel USB 3.0 Redriver with 1.8V power Supply Rating Catalog Operating temperature range (°C) -40 to 85 Supply current (max) (µA) 82000 ESD HBM (typ) (kV) 4 Bandwidth (MHz) 2500
Type Redriver Function USB 3.0 USB speed (Mbps) 5000 Number of channels 1 Input/output voltage (min) (V) 0 Input/output voltage (max) (V) 1.2 Configuration Single-channel Features Single Channel USB 3.0 Redriver with 1.8V power Supply Rating Catalog Operating temperature range (°C) -40 to 85 Supply current (max) (µA) 82000 ESD HBM (typ) (kV) 4 Bandwidth (MHz) 2500
X2QFN (RWB) 12 2.56 mm² (1.6 mm × 1.6 mm)
  • USB3.0 SuperSpeed Re-Driver with 1.8 V Power
    Supply
  • Ultra Low-Power Architecture:
    • Active: <130 mW
    • U2/U3: <22 mW
    • < 8mW with No Connection
  • Optimal Receiver Equalization:
    • 3/6/9 dB
  • Superior Drive Performance
  • Automatic LFPS De-Emphasis Control To Meet
    USB 3.0 Certification Requirements
  • No Host/Device-Side Requirement
  • Small Package Options
  • Hot-Plug Capable
  • ESD protection exceeds > ±4kV HBM
  • -40°C to 85°C Industrial Temperature Range
  • USB3.0 SuperSpeed Re-Driver with 1.8 V Power
    Supply
  • Ultra Low-Power Architecture:
    • Active: <130 mW
    • U2/U3: <22 mW
    • < 8mW with No Connection
  • Optimal Receiver Equalization:
    • 3/6/9 dB
  • Superior Drive Performance
  • Automatic LFPS De-Emphasis Control To Meet
    USB 3.0 Certification Requirements
  • No Host/Device-Side Requirement
  • Small Package Options
  • Hot-Plug Capable
  • ESD protection exceeds > ±4kV HBM
  • -40°C to 85°C Industrial Temperature Range

The TUSB551 is a 4th-generation USB3.0 SuperSpeed (SS) re-driver that features a 1.8V power supply with low consumption, superior output drive performance, and automatic LFPS De-Emphasis control for full USB 3.0 compliance. The re-driver offers selectable gain settings in the equalizer to account for channel loss. These settings are controlled by the EQ terminal. To compensate for downstream transmission line losses, the output driver supports configuration of De-Emphasis and Output Swing (terminals DE and OS). These settings allow optimal performance, increased signaling distance, and flexibility in placement of the TUSB551 in the SuperSpeed USB path.

The TUSB551 is a 4th-generation USB3.0 SuperSpeed (SS) re-driver that features a 1.8V power supply with low consumption, superior output drive performance, and automatic LFPS De-Emphasis control for full USB 3.0 compliance. The re-driver offers selectable gain settings in the equalizer to account for channel loss. These settings are controlled by the EQ terminal. To compensate for downstream transmission line losses, the output driver supports configuration of De-Emphasis and Output Swing (terminals DE and OS). These settings allow optimal performance, increased signaling distance, and flexibility in placement of the TUSB551 in the SuperSpeed USB path.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet TUSB551 1.8-V USB 3.0 Single Channel Re-Driver with Equalization datasheet (Rev. A) PDF | HTML Mar 10, 2014
Application note High-Speed Layout Guidelines for Signal Conditioners and USB Hubs (Rev. A) PDF | HTML Jan 8, 2026
White paper Strengthening the USB Type-C signal chain through redrivers Aug 21, 2017
Technical article How to deliver clean USB Type-C™ signals PDF | HTML Aug 7, 2017
Technical article How to correct 10Gbps performance issues with a USB Type-C™ active redriver multip PDF | HTML Dec 1, 2016
Technical article Why use a USB Type-C™ redriver in your personal electronics designs? PDF | HTML Oct 25, 2016
White paper Alternate Mode for USB Type-C™: Going Beyond USB Sep 26, 2016
Technical article How USB will enable the future of automotive infotainment PDF | HTML Oct 8, 2015
White paper Transition existing products from USB 2.0 OTG to USB Type-C Jul 10, 2015
White paper Low-cost implementation of USB Type-C Jul 7, 2015

Design & development

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Simulation model

TUSB551 HSPICE Model

SLLC442.ZIP (196 KB) - HSpice model
Supported products & hardware
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X2QFN (RWB) 12 Ultra Librarian
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