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STUSB4700 Datasheet

Autonomous USB PD controller

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STUSB4700
Datasheet
Standalone autonomous USB PD controller with short-to-VBUS protections
Product status link
STUSB4700
Features
• USB power delivery (PD) controller
• Type-C attach and cable orientation detection
• Single role: provider
• Full hardware solution - no software
• I2C interface + interrupt (optional connection to MCU)
• Supports up to 5 power data objects (PDO)
• Configurable start-up profiles
• Integrated VBUS voltage monitoring
• Internal and/or external VBUS discharge path
• Short-to-VBUS protections on CC pins (22 V)
• High voltage protections on VBUS pins (28 V)
• High and/or low voltage power supply:
– VSYS = [3.0 V; 5.5 V]
– VDD = [4.1 V; 22 V]
• Automotive grade available
• Fully compatible with:
– USB Type-C™ rev 1.2
– USB PD rev 2.0
– Certification test ID 1030023
Applications
• AC adapters and power supplies for: computer, consumer or portable consumer
applications
• Smart plugs and wall adapters
• Power hubs and docking stations
• Displays
• Any Type-C source device
Description
The STUSB4700 is a new family of USB power delivery controllers communicating
over Type-C™ configuration channel pin (CC) to negotiate a given amount of power
to be sourced to an inquiring consumer device.
The STUSB4700 addresses provider/DFP devices such as notebooks, tablets and
AC adapters. The device can handle any connections to a sink or DRP without any
MCU control, from the device attachment to power negotiation, including VBUS
discharge and protections.
DS11977 - Rev 4 - June 2018
For further information contact your local STMicroelectronics sales office.
www.st.com


STMicroelectronics Electronic Components Datasheet

STUSB4700 Datasheet

Autonomous USB PD controller

No Preview Available !

STUSB4700
Functional description
1 Functional description
The STUSB4700 is an autonomous USB power delivery controller optimized as a provider. It offers an open drain
GPIO interface to make direct interconnection with a power regulation stage.
The STUSB4700 offers the benefits of a full hardware USB PD stack allowing robust and safe USB PD
negotiation in line with USB PD standard. The STUSB4700 is ideal for provider applications in which digital or
software intelligence is limited or missing.
The STUSB4700 main functions are:
• Detect the connection between two USB ports (attach detection)
• Establish a valid host to device connection
• Discover and configure VBUS: Type-C low, medium or high current mode
• Resolve cable orientation
• Negotiate a USB power delivery contract with a PD capable device
• Configure the power source accordingly
• Monitor VBUS, manage transitions, handle protections and ensure user and device safety
Additionally, the STUSB4700 offers 5 customizable power data objects (PDOs), 5 general purpose I/Os, an
integrated discharge path, and is natively robust to high voltage peaks.
Figure 1. Functional block diagram
VDD
VSYS
VREG_2V7
VREG_1V2
Internal
supply
VBUS status
voltage
monitoring
Discharge
path
VBUS_EN_SRC
A_B_SIDE
SCL
SDA
ALERT#
VVAR_ADDR0
VBUS_DISCH
GPIO[4..0]
RESET
GND
I²C
slave
Control
POR &
reset
generator
port status
Device
Policy
Manager
Policy
Engine
Port C
controller
VCONN SW
(OVP & OCP)
CC
line
access
Protocol Physical BMC
Layer
Layer driver
VBUS_SENSE
VCONN
CC1
CC2
DS11977 - Rev 4
page 2/43


Part Number STUSB4700
Description Autonomous USB PD controller
Maker STMicroelectronics
Total Page 30 Pages
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