ST NUCLEO-H755ZI-Q User Manual

UM2408 Rev 2 19/51
UM2408 Hardware layout and configuration
50
Figure 9. Power supply input from V
IN
(7-11 V, 800 mA max)
Note: Refer to Section 6.4.6 about debugging when using an external power supply.
6.4.3 External power supply input 5V_EXT (5 V, 500 mA max)
When the STM32H7 Nucleo-144 board is power supplied by EXT (Refer to Table 6 and
Figure 10), the jumper configuration must be the following: Jumper JP2 on pin 5-6 EXT.
Note: Refer to 6.4.6 about debugging when using an external power supply.
Table 5. External power sources: V
IN
(7-11 V)
Input power
name
Connector pins Voltage range Max current Limitation
V
IN
CN8 pin 15
CN11 pin 24
7 V to 11 V 800 mA
From 7 V to 11 V only and input current
capability is linked to input voltage:
– 800 mA input current when V
IN
=7 V
– 450 mA input current when 7 V<V
IN
<9 V
– 250 mA input current when 9 V<V
IN
<11 V
Table 6. External power sources: 5V_EXT
Input power name Connector pins Voltage range Max current
EXT CN11 pin 6
4.75 V to
5.25 V
500 mA
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ST NUCLEO-H755ZI-Q Specifications

General

Brand	ST
Model	NUCLEO-H755ZI-Q
Category	Motherboard
Language	English