Power Supply - ST STM3210B-EVAL User Manual

UM0426
1.2

Power supply

The STM3210B-EVAL board is designed to be powered by 5V DC power supply and to be
protected by PolyZen U6 in case of incorrect power supply configuration. It is possible to
configure the evaluation board to use any of the following sources for the power supply.
●
5V DC power adapter connected to CN4, the power supply jack labeled "PSU" (for
Power Supply Unit) on the silkscreen
● 5V DC power with 500mA limitation from CN1, the type-B USB connector on the
evaluation board labeled "USB" on the silkscreen
●
5V DC power from both CN12 and CN13, the daughter board extension connectors
labeled "DTB" (for Daughter Board) on the silkscreen
The power supply is configured by setting the related jumpers JP4, JP9 and JP11 as
described in
Table 2.
Jumper
JP4
JP9
JP11
The LED LD5 is lit when the STM3210B-EVAL board is powered correctly.
Table 2.
Power related jumpers
JP4 is used to select one of the three possible power supply resources.
For power supply from the power supply jack (CN4) to the STM3210B-
EVAL only, JP4 is set as shown (default setting):
For power supply from the daughter board connectors (CN12 and
CN13) to the STM3210B-EVAL only, JP4 is set as shown:
For power supply from USB (CN1) to the STM3210B-EVAL only, JP4 is
set as shown:
For power supply from power supply jack (CN4) to both the
STM3210B-EVAL board and to a daughter board connected on CN12
and CN13, JP4 is set as shown below. The daughter board must not
have its own power supply connected.
Measures the consumption of VDD and VDDA.
Default setting: Fitted
V is connected to 3.3V power when JP11 is set as shown (default
bat
1 2 3
setting):
V is connected to battery when JP11 is set as shown:
bat
1 2 3
Hardware layout and configuration
Description
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