5V_EXT
5V_EXT is the DC power coming from an external 5 V DC power from the ST morpho connector (CN11) pin 6. In
this case, the JP3 jumper must be set on [5-6] to select the EXT power source. The green LED (LD5) is turned
ON
5V_EXT configuration: The JP3 jumper must be set on [5-6] as shown in Figure 9.
Figure 9. JP3 [5-6]: 5V_EXT power source
DT59257V1
Green LED
(LD5)
JP3 [5-6]
ST morpho
(CN11) pin 6
Note:
JP3 is also used as a USB Type-C
®
user connector (CN2) power source selection when CN2 is used as the
source port. LD5 is lit when source power exists for CN2.
UM3276
Hardware layout and configuration
UM3276 - Rev 1
page 17/40
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