Product details


Function Type-C Device type PD controller Power role DRP, Sink, Source Alternate mode Yes External power path control GPIO, NFET Data role DFP, DRD, UFP Internal power path 20V 3A Source/Sink, 5V 3A Source, 5V 600mA VCONN USB speed (Mbps) 480 Rating Catalog Dead battery support Yes Operating temperature range (C) -40 to 85, -40 to 105 Iq (Typ) (uA) 58 open-in-new Find other USB Type-C & USB Power Delivery ICs

Package | Pins | Size

VQFN (RTQ) 56 64 mm² 8 x 8 open-in-new Find other USB Type-C & USB Power Delivery ICs


  • USB Power Delivery (PD) Controller
    • Mode Configuration for Source (Host), Sink (Device), or Source-Sink
    • Bi-Phase Marked Encoding and Decoding (BMC)
    • Physical Layer (PHY) Protocol
    • Policy Engine
    • Configurable at Boot and Host-Controlled
  • USB Type-C Specification Compliant
    • Detect USB Cable Plug Attach
    • Cable Orientation and Role Detection
    • Assign CC and VCONN Pins
    • Advertise Default, 1.5 A or 3 A for Type-C Power
  • Port-Power Switch
    • 5-V, 3-A Switch to VBUS for Type-C Power
    • 5-V to 20-V, 3-A Bidirectional Switch to or from VBUS for USB PD Power
    • 5-V, 600-mA Switches for VCONN
    • Overcurrent Limiter, Overvoltage Protector
    • Slew-Rate Control
    • Hard Reset Support
  • Port Data Multiplexer
    • USB 2.0 HS Data and Low Speed Endpoint
    • Sideband-Use Data for Alternate Modes (DisplayPort, for Example)
  • Power Management
    • Gate Control and Current Sense for External 5-V to 20-V, 5-A Bidirectional Switch (Back-to-Back NFETs)
    • Power Supply from 3.3-V or VBUS Source
    • 3.3-V LDO Output for Dead Battery Support
  • QFN Package for Reliable Manufacturing
    • 0.5-mm Pitch
    • 2-Layer PCB Compatibility

All trademarks are the property of their respective owners.

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The TPS65981 device is a stand-alone, USB Type-C, and power-delivery (PD) controller providing cable-plug and orientation detection at the USB Type-C connector. Upon cable detection, the TPS65981 device communicates on the CC wire using the USB PD protocol. When cable detection and USB PD negotiation are complete, the TPS65981 device enables the appropriate power path and configures alternate mode settings for internal and (optional) external multiplexers.

The mixed-signal front end on the CC pins provides default (900 mA), 1.5-A, or 3-A current for Type-C power sources, detects a plug event, determines the USB Type-C cable orientation, and autonomously negotiates USB PD contracts by adhering to the specified biphase-marked coding (BMC) and physical-layer (PHY) protocol.

For all available packages, see the orderable addendum at the end of the data sheet.

The port-power switch provides up to 3 A downstream at 5 V for legacy and Type-C USB power. An additional bidirectional switch path provides USB PD power up to 3 A at a maximum of 20 V as either a source (host), sink (device), or source-sink.

The TPS65981 device is also an upstream-facing port (UFP), downstream-facing port (DFP), or dual-role port for data. The port-data multiplexer passes data to or from the top or bottom D+/D– signal pair at the port for USB 2.0 HS and has a USB 2.0 low-speed endpoint. Additionally, the sideband-use (SBU) signal pair is used for auxiliary or alternate modes of communication (DisplayPort, for example).

The power-management circuitry uses 3.3 V inside the system and also uses VBUS to start up and negotiate power for a dead-battery or no-battery condition.

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Similar but not functionally equivalent to the compared device:
TPS65987D ACTIVE USB Type-C™ and USB PD controller with integrated power switches This device supports PD 2.0 only which is no longer being certified by the USB-IF. TPS65987D is a PD 3.0 controller and should be used for new designs.

Technical documentation

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Type Title Date
* Datasheet TPS65981 USB Type-C and USB PD Controller, Power Switch, and High Speed Multiplexer datasheet (Rev. B) Aug. 30, 2016
Application notes TPS6598x Power and Data Role Swaps (Rev. A) Apr. 17, 2019
Application notes TPS6598x Thunderbolt Alternate Mode (Rev. A) Sep. 04, 2018
User guides TPS6598x Application Customization Tool (Rev. B) Jul. 31, 2018
Application notes TPS6598x DisplayPort Alternate Mode (Rev. B) Jul. 31, 2018
Application notes TPS6598x OCP Mechanism and Programming Guide Oct. 23, 2017
Technical articles How to maintain thermal performance when designing with USB Power Delivery Jun. 12, 2017
Application notes TPS65982 FW Update from Embedded Controller Over I2C (Rev. A) Apr. 26, 2017
Application notes TPS6598x PDIO Alternate Mode Feb. 13, 2017
User guides TPS65981, TPS65982, and TPS65986 Host Interface Technical Reference Manual (Rev. A) Feb. 06, 2017
Application notes TPS6598x GPIO Events Nov. 17, 2016
Application notes TPS6598x PD Power Negotiations Nov. 15, 2016
Application notes TPS6598x User Alternate Modes Nov. 10, 2016
White papers Circuit protection for your next USB Type-C™ design White Paper Oct. 12, 2016
User guides TPS65981EVM User's Guide Aug. 31, 2016
User guides TPS65981, TPS65982, and TPS65986 Firmware User’s Guide (Rev. B) Jul. 20, 2016
Application notes Using a TPS6598x-EVM to Emulate Type-C and Power Delivery Products (Rev. A) Jul. 06, 2016
Application notes TPS65982 Designs for Supporting Voltages in USB-PD 'Power Rules' Jun. 06, 2016
Application notes TPS65982 and TPS65986 Quick Start and System Bring Up (Rev. A) Nov. 11, 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 TPS65981EVM is a complete reference design for USB Type-C and Power Delivery Applications featuring a variable DC/DC architecture to optimize board layout and minimize BOM cost.  In addition, when paired with the DP-EXPANSION-EVM the user can emulate a full-featured USB Type-C PD host or device.
  • USB Type-C testing and verification
  • USB Power Delivery testing and verification
  • Application Emulation (EPOS, TV, Monitor, Charger)
  • Powered from single supply and bus-powered capable
  • DisplayPort Alternate Mode and USB Data verification (when used with DP-EXPANSION-EVM)

Software development

TPS6598X Host Interface Utility Tool
TPS65982-HIUTILITY The TPS6598X Utilities Tool is a set of python scripts used to interact with the TPS65982 and TPS65986 USB Type-C and PD controllers using the device’s Host Interface and an external Windows-based computer. This interface provides a rich variety of functions for both controlling the TPS65982 (...)
  • Easy way to prototype custom port controller behavior
  • Simple-to-use debugging through status register readout
  • A variety of python scripts to interact with the TPS65982 and TPS65986's Host Interface:
    • Read the Host Interface Registers
    • Update the application firmware image
    • Update just region 0 or region 1 of (...)

Design tools & simulation

SLVMBQ9.ZIP (70 KB) - IBIS Model
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

CAD/CAE symbols

Package Pins Download
QFN (RTQ) 56 View options

Ordering & quality

Support & training

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