1
Getting started
1.1
Overview
The
expansion board features:
•
protection for USB Type-C and PD Sink applications
•
Compliant with the latest USB Type-C and Power delivery specification, including the Programmable Power
Supply (PPS) feature
•
USB-IF certified (Test ID certification: 5205)
•
100 W-rated solution
•
6 V overvoltage protection (OVP) on CC lines against short-to-V
BUS
when the connector is unplugged
•
Up to 22 V adjustable overvoltage protection (OVP) on V
BUS
line against charger failure
•
Surge protection (8/20 µs) and system-level ESD protection on V
BUS
•
Common mode filter and ESD protection on USB 2.0 High Speed data lines
•
System level ESD protection on CC lines as per IEC61000-4-2 level 4 (±8 kV contact discharge)
•
Low power mode for battery operation allowing zero current consumption when no cable is attached
•
Integrated dead battery management when the device battery is fully depleted
•
Overtemperature protection (OTP)
•
RoHS compliant
1.2
Hardware architecture
The
expansion board is designed to be used with any
board embedding the UCPD peripheral (mainly
) and also with the
ones not supporting the UCPD peripheral.
Note:
The compliance with the USB Type-C and Power Delivery specification is guaranteed only for the STM32
Nucleo development boards embedding the microcontrollers (STM32G071RB and STM32G474RE) with a
UCPD peripheral.
When stacked with a non-UCPD STM32 Nucleo development board, the
can still
demonstrate some Type-C basic operations like ATTACH/DETACH recognition and identification of source current
capability.
Moreover, two couples of resistances, used as solder bridge selectors, allow exploiting the USB2.0 peripheral.
The expansion board must be plugged on the matching pins of the development board CN7 and CN10 ST
morpho connectors.
When plugged onto an
development board, the expansion board can be supplied in two different
ways:
•
ST-LINK supply using the development board internal LDO
•
by the V
BUS
provided when a Source is plugged into the CN1 USB Type-C connector and thanks to the
integrated
LDO linear regulator (U2) that supplies the entire system, which supports Dead
Battery operation mode.
UM2773
Getting started
UM2773
-
Rev 1
page 2/23
