Power Supply; 5 V Power Supply General View; Table 14. Power Source Capabilities - ST STM32U575I-EV User Manual

7.8

Power supply

7.8.1

5 V power supply general view

The STM32U575I-EV Evaluation board is designed to be powered from a 5 V DC power source. One of the
following five 5 V DC power inputs can be used, upon an appropriate board configuration:
• 5V_STLK from CN26 Micro-B USB receptacle of STLINK-V3E (default)
• 5V_EXT from CN25 power jack marked 5V on the board. The positive pole is on the center pin as illustrated
in Figure
• 5V_UCPD from CN1 USB Type-C
• 5V_DC from pin 49 of CN9 extension connectors for the custom daughterboard
• 5V_CHG from CN26 Micro-B USB receptacle of STLINK-V3E, in case of wall charger (no-enumeration)
No external power supply is provided with the board.
When 5V_EXT or 5V_DC is used to power the board, this power source must comply with the standard
EN 60950‑1:2006+A11/2009+A1/2010+A12/2011+A2/2013, EN 62368‑1 (2014+A11/2017) and must be safety
extra‑low voltage (SELV/ES1) with limited power capability (LPS/ES2).
LD2 green LED turns on when the voltage on the power line marked as 5V is present. All supply lines required for
the operation of the components on STM32U575I-EV are derived from that 5V line.
5 V / 500 mA is the standard to power the STM32U575I-EV Evaluation board.
Table 14 describes the 5 V power supply capabilities.
Input Power
name
5V_STLK
5V_EXT
5V_UCPD
5V_DC
5V_CHG
UM2854 - Rev 1
16.
®
receptacle of USB user interface
Table 14.
Connector pins Voltage range
CN26 pin 1
JP25 [1-2]
C25 pin 1
JP25 [3-4]
4.75 to 5.25 V
CN1
JP25 [5-6]
CN9 pin 49
JP25 [7-8]
CN26 pin 1
JP25 [9-10]
Power source capabilities
Max.
current
The maximum current depends on the USB
enumeration:
500 mA
• 100 mA without enumeration
• 500 mA with correct enumeration
The maximum current depends on the power
-
source.
The maximum current depends on the
1 A
USB Type-C
STM32U575I-EV board.
The maximum current depends on the power
-
source.
The maximum current depends on the USB
- wall charger used to power the board (no
enumeration, no current protection).
STM32U575I-EV
Power supply
Limitation
®
host used to power the
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