TPS65981 Datasheet, PDF (1/7 Pages) Texas Instruments – USB Type-C and USB PD Controller Power Switch

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TPS65981
SLVSDC2 – FEBRUARY 2016
TPS65981 USB Type-C and USB PD Controller, Power Switch, and High Speed Multiplexer
1 Features
•1 USB Power Delivery (PD) Controller
– Mode Configuration for Source (Host), Sink
(Device), or Source-Sink
– Bi-Phase Marked Encoding/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, UART 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
2 Applications
• After-Market Automotive Infotainment
• Industrial Equipment
• Medical Equipment
• Notebooks, Tablets and Ultrabooks
• Monitors and TVs
• USB PD Hosts, Devices, and Dual-Role Ports
3 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 and 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.
PART NUMBER
TPS65981
Device Information⁽¹⁾
PACKAGE
BODY SIZE (NOM)
VQFN (56 pin)
8.00 mm × 8.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
5 to 20 V
Simplified Diagram
5A
5 to 20 V
5V
3.3 V
Host
USB2.0 and
Sideband-Use
Data
External FET Sense and CTRL
3A
V_BUS
3A
Host
Interface
Type-C Cable
Detection and CC1/2 2 ^CC/VCONN
USB PD Controller
High
Speed
Mux
USB_TP/TN
USB_BP/BN
SBU1/2
Alternate Mode Mux Ctrl
TPS65981
2 D±
2 D±
2 SBU1/2
GND
USB
Type-C
Connector
SuperSpeed Mux
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCT PREVIEW Information. Product in design phase of
development. Subject to change or discontinuance without notice.