ST Nucleo-64 STM32WL3 Series User Manual page 12

7.1.3 5 V power supply
Different 5 V DC power sources can power NUCLEO-WL33CCx. The 5 V can come from several connectors:
• 5V from USB-C
• External source on CN10. Be careful, in this case, the states of the jumpers and solder bridge are critical.
Refer to
• 5V_EXT from the ST morpho connector (CN3)
• 7-12 V input through the voltage regulator (U3), with the VIN ARDUINO
The jumper (JP1) selects the 5V source.
on the current needed on the devices connected to the USB port, and the board itself, power limitations can
prevent the system from working as expected. The user must ensure that NUCLEO-WL33CCx is supplied with
the correct power source depending on the current needed.
5V_STLINK
5V_USB_MCU
VEXT/5V_EXT
VBUS_STLINK
1. The default configuration is in bold.
UM3418 - Rev 1
®
CN15 with or without overvoltage and current protection
Table 12. SB21 must be ON.
Table 4
Table 4. Power supply selector (JP1) description
JP1 jumper
5V_INT
shows the configuration to apply the selected source. Depending
(1)
Setting
NUCLEO-WL33CCx is supplied through the
ST-LINK USB Type-C
JP1 [1-2]
an overvoltage and an overcurrent protection
device (U10).
JP1 [3-4] Not available on NUCLEO-WL33CCx.
NUCLEO-WL33CCx is supplied through the pin 8
of the ARDUINO
the ST morpho connector (CN3) or CN10 (setting
JP1 [5-6]
SB20)
Refer to the configuration details in the present
Power supply
NUCLEO-WL33CCx is supplied through CN10 or
through pin 6 of the ST morpho connector (CN3).
JP1 [7-8]
Refer to the configuration details in the present
Power supply
NUCLEO-WL33CCx is directly supplied by the
JP1 [9-10]
USB Type-C
overvoltage and overcurrent protection.
UM3418
Hardware layout and configuration
®
pin on CN5
Configuration
®
receptacle (CN15), with
®
connector (CN5) or pin 24 of
section.
section.
®
receptacle (CN15), without any
page 12/39