Figure 11. JP4: 5V_VIN selection from CN17 (VIN)
5V_UCPD: JP4 [5-6]
(Refer to Figure 12)
This is the DC power with a 500 mA limitation from the CN14 USB Type-C
®
connector. In this case, the JP4
jumper must be fitted between pin 5 and pin 6 to select the 5V_UCPD power source.
Figure 12. JP4: 5V_UCPD
5V_USB_CHGR: JP4 [7-8]
(Refer to Figure 13)
This is the DC power charger connected to the CN8 USB ST-LINK connector. To select the 5V_USB_CHGR
power source, the JP4 jumper must be fitted between pin 7 and pin 8. In this case, if the B-U585I-IOT02A
Discovery kit is powered by an external USB charger, then the debug is not available. If the PC is connected
instead of the charger, the limitation is no longer effective, and the PC might be damaged.
UM2839
Power supply
UM2839 - Rev 4
page 16/54
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