Texas Instruments TPS65981EVM Manual

TPS65981 USB Type-C

1 Features

• This device is certified by the USB-IF for PD2.0
– PD2.0 is no longer certifiable on new designs
as of June 2020
– All new designs requiring certification should
use a PD3.0 compliant device
– Article on PD2.0 vs PD3.0
• Fully configurable USB PD controller
– Control for external DC/DC supplies through
GPIO
• Ex: TPS65981EVM
– Port data multiplexer
• USB 2.0 HS data and low speed endpoint
• Sideband-use data for alternate modes
– GUI tool to easily configure TPS65981 for
various applications
– Support for DisplayPort alternate mode
– Supports industrial temperature range
– For a more extensive selection guide and
getting started information, please refer to
www.ti.com/usb-c and
• Integrated fully managed power paths:
– Integrated 5-V, 3-A, 55-mΩ sourcing switch
– Integrated 5-V to 20-V, 3-A, 95-mΩ bi-
directional load switch
– Gate Control and current sense for external 5-V
to 20-V, 5-A bidirectional switch (back-to back
NFETs)
– UL2367 cert#: E169910-20150728
• Integrated robust power path protection
– Integrated reverse current protection,
undervoltage protection, overvoltage protection,
and slew rate control the high-voltage bi-
directional power path
– Integrated undervoltage and overvoltage
protection and current limiting for inrush current
protection for the 5-V/3-A source power path
• USB Type-C ® Power Delivery (PD) controller
– 8 configurable GPIOs
– BC1.2 charging support
– USB PD 2.0 certified
– USB Type-C specification certified
– Cable attach and orientation detection
– Integrated VCONN switch
– Physical layer and policy engine
– 3.3-V LDO output for dead battery support
– Power supply from 3.3 V or VBUS source
– 1 I2C primary port
– 1 I2C secondary port
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.
®
and USB PD Controller, Power Switch, and High Speed
Multiplexer
E2E guide
SLVSDC2C – FEBRUARY 2016 – REVISED AUGUST 2021

2 Applications

• After-market automotive infotainment
• Other personal electronics and industrial
applications
• Medical equipment
• Rugged PC and laptop
• Docking station
• Flat panel monitor

3 Description

The TPS65981 is a highly integrated stand-alone
USB Type-C and Power Delivery (PD) controller
optimized for notebook applications. The TPS65981
integrates fully managed power paths with robust
protection for a complete USB-C PD solution. The
TPS65981 integrates a high speed multiplexer which
is dependent the USB Type-C cable orientation
that the CC pins provide. The multiplexer passes
through side-band use data for alternate modes.
The TPS65981 has a QFN package for reliable
manufacturing with 0.5-mm Pitch and 2-Layer
PCB compatibility and has an extended (industrial)
temperature range. The TPS65981 is USB PD 2.0
certified which is no longer certifiable through USB IF.
Device Information
PART NUMBER PACKAGE
TPS65981 VQFN (56)
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
5 to 20 V
External FET Sense and CTRL
5 to 20 V
3 A
5 V
3 A
3.3 V
Type-
Host Detection
Host
Interface
USB PD Controller
High
USB2.0 and
Speed
Sideband-Use
Mux
Data
Alternate Mode Mux Ctrl
TPS65981
SuperSpeed Mux
Copyright © 2016, Texas Instruments Incorporated
Simplified Diagram
TPS65981
(1)
BODY SIZE (NOM)
8.00 mm × 8.00 mm
5 A
V
BUS
C Cable
CC/V
and CC1/2
2
CONN
USB
Type-C
Connector
USB_TP/TN
D±
2
USB_BP/BN
2 D±
SBU1/2 SBU1/2
2
GND