External Power Supply Input From Usb Charger (5 V); External Power Supply Input From 3V3_Ext (3.3 V); Table 8. External Power Sources: Chgr (5 V); Figure 12. Power Supply Input From 5V_Ext (5 V, 500 Ma Max) - STMicroelectronics STM32H7 Nucleo-144 User Manual

UM2407
6.4.4

External power supply input from USB CHARGER (5 V)

When STM32H7 Nucleo-144 board is power supplied by a USB charger on CN1 (see
Table 8 and
pin 7-8 "CHGR".
Input power name
CHGR

Figure 13. Power supply input from ST-LINK USB connector with USB charger (5 V)

6.4.5

External power supply input from 3V3_EXT (3.3 V)

When the 3.3 V is provided by a shield board, it is interesting to use the 3V3 (CN8 pin 7 or
CN11 pin 16) directly as power input (see
programming and debugging features are not available, since the ST-LINK is not powered.

Figure 12. Power supply input from 5V_EXT (5 V, 500 mA max)

Table 13), the jumper configuration must be the following: Jumper JP2 on

Table 8. External power sources: CHGR (5 V)

Connector pins
CN1
UM2407 Rev 1
Hardware layout and configuration
Voltage range
5 V
Table 9 and Figure 14). In this case the
Max current
-
23/48
47