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6.8.2
Power Delivery and local power management
The UCPD daughterboard has its external power jack (MB1352_CN3, 19 V/4 A input) to support the power
delivery function and to provide up to 15 V/3 A on the MB1352_CN7 USB Type-C
Note:
If the extension 19 V power adaptor of the UCPD daughterboard is used, the power supply source of the mother
board must be set to D5V on JP24. Refer to
The STM32G0C1E-EV Evaluation board can be powered by D5V from UCPD daughterboard as shown in
Figure
8. D5V on the UCPD daughterboard can be generated by three resources, 19 V from the external power
jack, V
on port 1, or V
BUS
select the external 19 V power supply or V
power sources for port 1 to D5V. The MB1352_JP5 jumper is used to select D5V resources as shown in
Jumper
MB1352_JP3
1. The default setting is in bold.
6.8.3
V
management and discharge mechanism
BUS
The MB1352_CN7 USB Type-C
supplying other platforms as a provider or supplied as a consumer. The MB1352_T6 and MB1352_T7 MOSFETs
are set in back-to-back configuration to protect and isolate the V
If the MB1352_CN7 acts as a provider, the V
(MB1352_T6 and MB1352_T7) driven by the PD3 MCU GPIO. For the consumer case, the same V
managed by MCU PD3 enabling the discrete load switch. All power profiles are listed in
MB1352_CN
7 role
Provider
Consumer
UM2783 - Rev 1
on port 2. A circuit is implemented on the UCPD daughterboard to automatically
BUS
BUS
Table 17.
D5V from UCPD daughterboard is generated from external 19 V or V
set as shown here:
D5V from UCPD daughterboard is generated from V
®
port1 can be used as DRP (dual-role port). Its V
Table 18.
MB1352 solder bridges
setting
MB1352 SB2, SB3, SB23,
SB26 ON
SB13, SB14, SB15
OFF
MB1352 SB13, SB14, SB15
ON
SB2, SB3, SB23,
SB26 OFF
-
USB-C® and Power Delivery daughterboard (MB1352)
Table 17
for the JP24 mother board setting selection.
on port1 because external 19 V and V
Local power‑related jumper
Description
(1)
on port 2 when MB1352_JP5 is set as shown here:
BUS
supplying path in both directions.
BUS
is on the supply path by mean of the discrete load switch
BUS
V
Power Delivery profiles
BUS
Power level
PWM mode:
PWM voltage-3A
GPIO mode:
5 V / 9 V / 15 V- 3 A
Decided by the provider
which is connected through
®
USB Type-C
cable
®
port1.
on port 1 are the two
BUS
on port 1 when MB1352_JP5 is
BUS
can be managed for
BUS
BUS
Table
18.
Source
control
Voltage control signal
signal
PC1-PWM signal PA1‑DCDC
PD3 High
enable
5 V: PC1 (VSOURCE - 9 V)
and PA1 (VSOURCE - 15 V)
tristate
PD3 High
9 V: PC1 (VSOURCE - 9 V)
low
15V: PA1 (VSOURCE - 15 V)
low
PD3 low
-
UM2783
Table
17.
path is
page 24/59
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