Texas Instruments TPS65981 Manual

TPS65981 USB Type-C and USB PD Controller, Power Switch, and High Speed Multiplexer
1 Features
• USB Power Delivery (PD) Controller
1
– 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
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. PRODUCTION DATA.
Sample &
Product
Buy
Folder
Tools &
Technical
Software
Documents
SLVSDC2B – FEBRUARY 2016 – REVISED AUGUST 2016
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, determines the
USB Type-C cable orientation, and autonomously
negotiates USB PD contracts by adhering to the
specified biphase-marked
physical-layer (PHY) protocol.
Device Information
PART NUMBER
TPS65981
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Diagram
5 to 20 V
External FET Sense and CTRL
5 to 20 V
5 V
3.3 V
Host
Host
Interface
USB2.0 and
Sideband-Use
Data
Alternate Mode Mux Ctrl
TPS65981
Support &
Community
TPS65981
coding (BMC)
(1)
PACKAGE BODY SIZE (NOM)
VQFN (56) 8.00 mm × 8.00 mm
5 A
V
3 A
BUS
3 A
Type- C Cable
CC/V
Detection and CC1/2
2
CONN
USB PD Controller
USB_TP/TN
D±
2
High
USB_BP/BN
2 D±
Speed
SBU1/2
2 SBU1/2
Mux
GND
SuperSpeed Mux
Copyright © 2016, Texas Instruments Incorporated
and
USB
Type-C
Connector