TPS65981 (ACTIVE)

USB Type-C™ and USB PD Controller, Power Switch, and High-Speed Multiplexer

 

Description

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.

Features

  • 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

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Parametrics Compare all products in USB Type-C and Power Delivery

 
Function
Policy Manager
Alternate Mode
Power Role
Data Role
Internal Power Path
External Power Path Control
Iq (Typ) (uA)
Realtime VBUS monitoring
Dead Battery Support
USB Speed (Mbps)
Operating Temperature Range (C)
Rating
Configuration
Package Group
TPS65981 TPS25740 TPS25740A TPS25741 TPS25741A TPS65982 TPS65986 TPS65990 TUSB422
CC Controller
PD Controller
Passive Signal Switch
Power Switch   
CC Controller
PD Controller   
CC Controller
PD Controller   
CC Controller
PD Controller   
PD Controller    CC Controller
PD Controller
Passive Signal Switch
Power Switch   
CC Controller
PD Controller
Passive Signal Switch
Power Switch   
Power Switch    CC Controller
PD Controller   
Integrated    Integrated    Integrated    Integrated    Integrated    Integrated    Integrated    N/A     
Yes    No    No    No    No    Yes    Yes    No    Yes   
DRP
Sink
Source   
Source    Source    Source    Source    DRP
Sink
Source   
DRP
Sink
Source   
DRP
Sink
Source   
DRP
Sink
Source   
DFP
DRD
UFP   
N/A    N/A    DFP    DFP    DFP
DRD
UFP   
DFP
DRD
UFP   
N/A    DFP
DRD
UFP   
20V 3A Source/Sink
5V 3A Source
5V 600mA VCONN   
N/A    N/A    5V 600mA VCONN    5V 600mA VCONN    20V 3A Source/Sink
5V 3A Source
5V 600mA VCONN   
20V 3A Source/Sink
5V 3A Source
5V 600mA VCONN   
20V 3A Source/Sink
5V 600mA VCONN   
 
GPIO
NFET   
NFET    NFET    NFET
PFET   
NFET
PFET   
GPIO
NFET   
GPIO    NFET     
58    8.5    8.5    8    8    58    58    35     
No    Yes    Yes    Yes    Yes    Yes    Yes    Yes    No   
Yes    No    No    No    No    Yes    Yes    Yes    Yes   
480    N/A    N/A    N/A    N/A    480    480    N/A     
-40 to 85
-40 to 105   
-40 to 125    -40 to 125    -40 to 125    -40 to 125    -10 to 85    -10 to 85    -40 to 85    -40 to 85   
Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog   
N/A    5V/12V/20V    5V/9V/15V    N/A    N/A    N/A    N/A    N/A    Always ON
USB3
10uA   
QFN    VQFN    VQFN    VQFN    VQFN    BGA MICROSTAR JUNIOR    BGA MICROSTAR JUNIOR    WQFN    DSBGA