Power Supply; 5 V Power Supply General View; Table 7. Power Supply Capabilities - ST STM32L562E-DK User Manual

6.3

Power supply

6.3.1

5 V power supply general view

The STM32L562E-DK Discovery kit can be powered from a 5 V DC power source.
One of the following 5 V DC power inputs can be used, upon an appropriate board configuration:
• 5V_STLK provided by a host PC connected to CN17 through a Micro-B USB cable (default configuration)
• 5V_VIN provided by an external 7 to 12 V power supply connected to ARDUINO
• 5V_UCPD provided by a host PC connected to CN15 through a USB Type-C
• 5V_PM provided by a host PC connected to CN16 through a Micro-B USB cable. This one is used for the
energy meter function.
• 5V_CHG provided by a 5 V USB charger connected to CN17 through a Micro-B USB cable
• 5V_DC provided by an external 5V_DC source on ARDUINO
connector for 5 V selection
When 5V_VIN, 5V_CHG, 5V_DC, or 3V3 is used to power the STM32L562E-DK board, this power source must
comply with the standard EN-60950-1: 2006+A11/2009 and must be safety extra low voltage (SELV) with limited
power capability.
The green LED (LD12) turns on when the voltage on the power line marked as 5 V is present. All supply lines
required for the operation of the components on STM32L562E-DK are derived from that 5 V line.
When the power supply is external 3V3 or 5V_CHG on CN17, the STLINK-V3E cannot be used.
Table 7 describes the 5 V power supply capabilities.
Input power
name
5V_STLK
5V_VIN
5V_UCPB
5V_PM
5V_CHG
5V_DC
UM2617 - Rev 7
Table 7.
Input voltage
Connector pins
range
CN17 pin 1
4.75 to 5.25 V
JP4 [1-2]
CN18 pin 8
7 to 12 V
JP4 [3-4]
CN15
4.75 to 5.25 V
JP4 [5-6]
CN16 pin 1
4.75 to 5.25 V
JP4 [7-8]
CN17 pin 1
4.75 to 5.25 V
JP4 [9-10]
CN18 pin 5
JP4 pin
4.75 to 5.25 V
2/4/6/8/10
JUMPER OFF
®
CN18 pin 5, or directly after the JP4
Power supply capabilities
Max.
current
The maximum current depends on the USB enumeration:
500 mA
• 100 mA without enumeration
• 500 mA with correct enumeration
From 7 V to 12 V only, and input current capability is
linked to input voltage:
-
• 800 mA input current when VIN=7 V
• 450 mA input current when 7 V < VIN < 9 V
• 250 mA input current when 9 V < VIN < 12 V
The maximum current depends on the USB host used to
1 A
power the board.
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 USB charger used
-
to power the board.
The maximum current depends on the 5V_DC used to
-
power the board.
UM2617
Power supply
®
CN18 pin 8
®
cable.
Limitation
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