2
Schematic diagram
Figure 4.
STEVAL-ISC004V1 circuit schematic
GN
D
F
B
P
G
S
m
a
ll
si
gn
a
l
P
o
w
e
r p
la
ne
GN
D
V
IN
OU
T
-ST
1
GN
D
GN
D
A
LE
R
T
#
R
ESE
T
S
T
M
32_
P
S
T
M
32_
N
3V
3_
N
uc
5V
_N
uc
P
1
P
2
P
6
P
10
P
13
P
1
P
2
P
6
P
10
P
13
GN
D
GN
D
3V
3_
N
uc
5V
_N
uc
3
V
3
5V
GN
D
J0
J0
-A
V
IN
J0
-B
GN
D
C
2
10
µ
F
C
2'
10
µ
F
C
3
220nF
C
1
100nF
Boot
1
V
in
7
GND
6
E
N
2
5
/E
N
1
3
F
B
4
P
G
2
S
W
8
U
2
ST
1
S
14
P
H
R
D
1
STPS
5
L
25B
J1
-A
V
sr
c
L
1
68
µ
H
R
2
200K
C
4
100pF
C
4'
N
C
+
C
5a
220
µ
F
C
5b
22
µ
F
R
1
N
C
D
3
N
M
R
33
2k2
R
34
2k2
3
V
3
3
V
3
SC
L
SD
A
R
3
13k
R
4
4k7
R
5
4k87
R
6
8k66
R
7
33k
M
E
-03
M
E
-01
M
E
-05
M
E
-06
V
S
e
l_20V
V
S
e
l_15V
V
S
e
l_12V
V
S
e
l_9V
D
51
1
N
4004
GN
D
A
1
Tx
+
1
A
2
Tx
-1
A
3
Vbu
s
A
4
CC1
A
5
D
+
1
A
6
D
-1
A
7
S
bu
1
A
8
Vbu
s
A
9
R
x-2
A
10
R
x+
2
A
11
GN
D
A
12
GN
D
B
1
Tx
+
2
B
2
Tx
-2
B
3
Vbu
s
B
4
CC2
B
5
D
+
2
B
6
D
-2
B
7
S
bu
2
B
8
Vbu
s
B
9
R
x-1
B
10
R
x+
1
B
11
GN
D
B
12
T
Y
PE
C
U
S
B
3.1
J2
C
51
10
µ
F
tc
D
_N
tc
D
_P
R
D
1
200
GN
D
GN
D
tc
D
_N
tc
D
_P
tc
D
_N
tc
D
_P
CC
1
CC
2
GN
D
GN
D
S
B
7
S
B
8
P
1
P
2
P
6
P
10
P
13
S
B
1
S
B
2
S
B
6
S
B
10
S
B
13
V
B
U
S
1
D
-
2
D
+
3
GN
D
5
ID
4
J55
M
ic
ro
B
C
5
5
4.7nF
C
56
1
µ
F
I/
O
1
GN
D
I/
O
2
I/
O
2
V
bus
I/
O
1
U
55
U
S
B
L
C
6
5V
GN
D
D
_
N
D
_
P
S
T
M
32_
N
S
T
M
32_
P
GN
D
R
5
5
1M
J1
R
61
4k7
L
D
62
L
D
61
R
62
4k7
GN
D
GN
D
3
V
3
GN
D
GN
D
IN
OU
T
U
3
TL
V
70133
D
2
C
8
1
µ
F
C
9
10
µ
F
V
sr
c
V
sr
c
GN
D
T
45
R
46
3k9
R
45
150k
L
D
12
V
bus
V
bus
C
5
c
1
µ
F
V
S
e
l_
P
DO
5
V
S
e
l_
P
DO
4
V
S
e
l_
P
DO
3
V
S
e
l_
P
DO
2
VD
D
24
VR
eg_2
V7
23
VR
eg_1
V2
21
V
B
U
S
_
D
IS
C
H
19
V
B
u
s_
E
N
_
S
R
C
20
S
C
L
7
S
D
A
8
A
dd
r0
13
SEL
_
P
DO
2
12
SEL
_
P
DO
3
11
SEL
_
P
DO
4
14
SEL
_
P
DO
5
15
GN
D
10
CC
2
4
CC
1
2
V
B
u
s_
S
e
n
se
18
E
xp
P
A
D
0
U
1A
ST
U
S
B
4710A
S
C
L
S
D
A
R
51
N
C
2
V
7
GN
D
GN
D
GN
D
GN
D
1
V
2
2
V
7
C
6
1
µ
F
C
7
1
µ
F
R
52
100k
J50
C
C
GN
D
D
52
ES
DA
25L
CC
1
CC
2
H
C
GN
D
T35
ST
R2
P3
LLH
6
R
36
10k
R
35
820
R
42
22k
R
41
47k
T
41A
S
i4925
DD
Y
T
41B
S
i4925
DD
Y
VB
us_
EN
_S
RC
VB
us_
DIS
CH
GN
D
J2
-B
GN
D
J2
-A
V
bus
P
o
w
er
C
on
tr
o
l
V
bus
USB-Nucleo
Interface for I2C Access
5V
Autonomous
USB PD controller
with integrated
discharge
path
UM2293
Schematic diagram
UM2293
-
Rev 2
page 4/14
