STEVAL-USBPD27S
Quick Start Guide
System Research and Applications
Summary
4 STEVAL-USBPD27S Kit Overview
9 STEVAL-USBPD27S setup and programming
13 Monitoring and Data Logging
23 Additional Information
2
16 Discovering the STEVAL-USBPD27S
STEVAL-USBPD27S Kit
3
STEVAL-USBPD27S Kit Overview
What’s inside
STEVAL-USBPD27S
Compact 27 W USB Type-C™
power delivery 3.0 with PPS
adapter reference design
The STEVAL-USBPD27S works
as USB Power Delivery Provider
with a single USB Type-C port
able to support Programmable
Power Supply (PPS) and
featuring adaptive synchronous
rectification.
STLINK-V3MINI
STLINK-V3 compact in-circuit
debugger and programmer for
STM32 + programming cable
STEVAL-USBPD27S Presentation
6
Test it Charging
Your Smartphone!
• Power supply stage implementing a QR fly-back topology based on the STD7N65M6 MDmesh™ M6 primary MOSFET,
• Power control stage embedding the STCH03 primary side PWM controller with a 650 V HV start-up cell. It can operate in different
modes: QR active mode, valley skipping mode and burst mode to guarantee high efficiency at different input voltage and output load
conditions.
• Digital control stage based on the STM32G071KB Arm Cortex-M0+ MCU that manages the USB Power Delivery stack, controls the
USB Type-C connector, enables the V
BUS
and the V
CONN
power paths, and runs the adaptive synchronous rectification algorithm.
The companion TCPP01-M12 safely interface the USB-C connector with the MCU, ensuring the highest robustness and protecting
against any destructive electrostatic discharge (ESD).
STEVAL-USBPD27S HW Overview
V
BUS
CCs
AC
Power Stage
Digital Control Stage
Load Switch &
Discharge
STL11N3LLH6
USB PD
& SR Controller
STM32G0
Primary Side
PWM Controller
STCH03
Adaptive SR
Power MOSFET
Voltage
Reference
Primary Side
Power MOSFET
STD7N65M6
LDO BUS Sensing
Protections and Gate Driver
TCPP01
-M12
Power Control
Stage
CCs
STSW-USBPD27S FW package
1. Application user files
2. BSP and modules
3. Low level drivers
4. USBPD stack library
5. FreeRTOS source code
6. Utilities collection
Setup & programming the STEVAL-USBPD27S
• Unpack the STEVAL-USBPD27S: the board is already
programmed for you!
• Connect the board to an AC source through CN1 holes.
The board works with universal input mains voltage range:
90 V
AC
to 264 V
AC
and line frequency: 45 Hz to 65 Hz.
• Supply the board. Be careful when supplying!
• Attach a Sink to the Type-C receptacle
How to Setup the STEVAL-USBPD27S
How to Program the STEVAL-USBPD27S
11
• Connect the STLINK-V3MINI to the
STEVAL-USBPD27S CN4 through
the provided cable.
• Supply the board. Be careful when
supplying!
• Program/Debug with the preferred
IDE.
• STM32CubeIDE is an advanced
C/C++ development platform from
STMicroelectronics with many useful
features
• Open the project, browse the
STM32CubeIDE folder and open the
available .project file
The path is:
$/Firmware/Projects/STEVALUSBPD27S/Applications/USB_PD/STEVA
L-USBPD27S/STM32CubeIDE
• User can debug/modify the code
using the IDE features
How to debug with STM32CubeIDE
12
The FW package allows the use of 3 IDE:
- STMicroelectronics STM32CubeIDE
- IAR EWARM
- Keil μVision / MDK-ARM
Monitoring and Data Logging
• Useful information on the application
behavior can be retrieved using
STM32CubeMonitor-UCPD software
• Through the STLINK-V3MINI serial
communication channel and by means
of the USBPD-Trace utility embedded
into the STSW-USBPD27S data are
transferred to the STM32CubeMonitorUCPD GUI
Integrated USBPD Trace
1. Connect the STLINK-V3MINI to the
STEVAL-USBPD27S CN4 connector
2. Run STM32CubeMonitor-UCPD
software on your PC
3. Click Traces on the bottom right
corner of the GUI
4. Select the COM port offered by the
STEVAL-USBPD27S
5. Attach a sink device
6. You’ll get all tracer information
Integrated USBPD Trace: How-To
3
4
6
Discover the STEVAL-USBPD27S
16
• With STM32G071B-DISCO you can
easily interact with the STEVAL-
USBPD27S
• Basic operations can be performed:
• Profile requests
• Control Messages
• The user can check bus parameter in
real-time
• STM32G071B-DISCO can also be
used:
• as a sniffer, to monitor a different Sink
• With STM32CubeMonitor-UCPD to perform
advanced testing
How to quickly test the STEVAL-USBPD27S 1/2
17
How to quickly test the STEVAL-USBPD27S 2/2
18
The board will show the
“Attach” message on its
display
Navigate with the cursor
up to the profile menu to
select a different profile
Once a profile is
selected, V
BUS
information is displayed
1. Connect the STM32G071B-DISCO to
your PC
2. Run STM32CubeMonitor-UCPD GUI
3. On the Board Selection pane
double-click on STM32G071B-DISCO
4. On the Port Selection pane doubleclick on Port Number 1
5. You’ll get the GUI to perform requests
to STEVAL-USBPD27S and check
V
BUS
values
Advanced testing with STM32CubeMonitor-UCPD 1/3
19
6. Enlarge Distant Port file to get the
information shared by the STEVAL-
USBPD27S
7. Set a sampling period (box in the left
bottom side of the GUI) and click start
to get V
BUS
samples on the GUI
8. Move to Measurement tab to get a
larger picture of the V
BUS
Advanced testing with STM32CubeMonitor-UCPD 2/3
20
9. Use the Message Selector pane to
interact with the STEVAL-USBPD27S
10.Power profiles can be requested
through the specific request box
Advanced testing with STM32CubeMonitor-UCPD 3/3
21
22
Example: Profile 4 request with 3.6 Volt
BUS Readings
Traces
Additional Information
• STEVAL-USBPD27S Resources
• STEVAL-USBPD27S webpage
• STSW-USBPD27S webpage
• DB4227: STEVAL-USBPD27S Databrief
• DB4228: STSW-USBPD27S Databrief
• UM2733: STEVAL-USBPD27S Hardware User
Manual
• UM2785: STSW-USBPD27SFW Software User
Manual
• AN5563: STEVAL-USBPD27S performance
• AN5562: V
BUS
control algorithm compliant with
USB Type-C and Power Delivery specifications
• AN5499: How to implement adaptive
synchronous rectification in flyback converters
using STM32 MCUs
• USB-PD Resources
• UM2552: Managing USB power delivery systems
with STM32 microcontrollers
• AN5225: USB Type-C™ Power Delivery using
STM32xx Series MCUs and STM32xxx Series
MPUs
• TA0357: Overview of USB Type-C and Power
Delivery technologies
• DB3747: STM32CubeMonitor-UCPD software tool
for USB Type-C™ Power Delivery port
management
• Programming tools Resources
• DB3871: STM32CubeIDE Integrated Development
Environment for STM32
• DB3737: STLINK-V3MINI mini
debugger/programmer for STM32
• STM32G071-Discovery
• DB3726: STM32G071B-DISCO STM32G0
Discovery kit for USB Type-C™ and Power Delivery
Available Documents
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