+Bus
+B
330uH
3.3u
3u/450V
450V
C17
17
L1
INPUT
IN
1
2
3
4
+
F1
16A
R3
D6
STTH1L06A
1L06A
COMP
VDD
LIM
FB
8
5
6
7
U2
VIPer26L
26LD
+
Re B
C18
18
1u/50V
1u
50V
D3
1.5mH
C15
15
n.c.
D7
BZV55
V55C18S
18SMD
L2
C14
14
100n
R10
10
120R
1N4148
4148
B250C15000
B250
15000DR
10R/5W
10
5W
Buck converter
converte
C5
150n/X2
150n
FSF16H
16H
Re A
+
-
C16
16
220n
R9 51k
C19
19
100n
+
C6
4n7/Y 2
4n7
C1
4n7/Y 2
4n7
C20
20
100u/25V
100u
25V
DC_bu
DC
_bus_v ol
oltage
age
D4
STTH1L06A
1L06A
R11
11
13k
D1
+15
15V
C8
100n
R12
12
5k6
+
470u/450V
470u
450V
C2
+
GND
4
Vin
C21
21
4u7/35V
4u7
35V
1
LF33AB
33ABDT-TR
C22
22
100n
C23
23
100n
C9
100n
3
+
W1
+
470u/450V
470u
450V
C4
+
C3
470u/450V
470u
450V
+3.3V linea
linear
U1
D5
LED R
LE
Red
ed
R7
100k
R4
100k
R1
100k
Input part with bridg
bridge
3
Vout
J1
13
14
15
16
Drain4
rain4
Drain3
rain3
Drain2
rain2
Drain1
rain1
Source4
Sour
e4
Source3
Sour
e3
Sour e2
Source2
Source1
Sour
e1
4
3
2
1
A
1
+15
15V
C11
11
100n
C7
10n
C12
12
100n
R6 120R
D2
BAT48
BA
48JFILM
LM
+Bus
+B
C10
10
47u/6.3V
47u
3V
B
Vdd
R8
7k5
R5
470K
R2
470K
2
+
C13
13
47u/6.3V
47u
3V
+3.3V
Vdd_
dd_micro
cro
+5V
Bus_v ol
Bu
oltage
age
Vdd_
dd_micro
STEVAL-IHM028V2
Schematic diagrams
Figure 1. STEVAL-IHM028V2 circuit schematic (1 of 6)
AM07931V1
6RI WZDUHĆ%UDNH
%
$
9
:
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Q
9LQ
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3:0B9UHI
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9RXW
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5
N
5
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Q
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5
5
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9GGBPLFUR
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Figure 2. STEVAL-IHM028V2 circuit schematic (2 of 6)
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5
5
5
9
9GGBPLFUR
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+$
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+=
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5
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4
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5
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8
76%,/7
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4
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$ %
:
5
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Q
&
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5
N
5
N
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5
5
5
5
N
& X
& Q
5
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8
76,/7
4
%&
4
%&
4
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9
N
5
5
N
5
N
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N
5
5
5
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0+& 5
8(
0+& 5
8'
0+& 5
8&
0+& 5
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0+& 5
5
N
5
N
5
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&
S
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S
4
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%UDNHĆFRQWUR O
5
N
5
N
&
S
&
S
&
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5
N
5
N
9
+$
4
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5
N
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0BSKDVHB%
0BSKDVHB$
9GGBPLFUR
5
QF %UDNHĆF RQWURO
5
N
&
Q
5
N
'
5
N
'
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&
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&
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5
5
4
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7DFKR
5
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4
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&
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7DFKRĆVHQVR U
5 N
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7DFKR
-
9GGBPLFUR
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Q
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5
N
8$
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Figure 3. STEVAL-IHM028V2 circuit schematic (3 of 6)
$09
(0B6723
3:0&+
3:0&/
3KDVHĆ&ĆĆLQSX
W
3:0%+
3:0%/
3KDVHĆ%ĆĆLQSXW
3:0$+
3:0$/
3KDVHĆ$ĆĆLQSXW
&
S
5
N
5
N
5
N
5
N
5
N
5
N
5
N
&
S
&
S
&
S
&
S
&
S
9
&
S
9GGBPLFUR
5 N
5 N
9
5 N
5 N
9
5 N
5 N
9
2&3ĆRII
& X
& X
&
6'
& X
'
%$7-),/0
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X
& X
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9ERRWĆ9
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287Ć8
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5
N
5
N
,30ĆPRGXOH
5
9
(
:
3Ć
(
9
3Ć
(
8
3Ć
N
5
5
SKDVHB&
SKDVHB%
SKDVHB$
(B*1'
5
5
5
5
5
5
(
BVKXQW
:
BVKXQW
:
(B*1'
5
5
5
5
5
5
(
BVKXQW
:
(B*1'
5
5
:
BVKXQW
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(
Figure 4. STEVAL-IHM028V2 circuit schematic (4 of 6)
$0Y
(B*1'
(
(B*1'
(
5
5
5
5
*DLQ
:
5
5
5
5
5
N
5
N
9GGBPLFUR
5
N
5
N
5
N
&
S
5
N
*DLQ
:
&
S
:
*DLQ
&
S
5
N
&
S
5
N
5
N
5
S
N
5
5
& S
N
8&
769
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:
5
&
Q
(
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(B*1'
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8$
769
9
N
5
5
N
&XUUHQWB%
9GGBPLFUR
9
&
S
5
N
&XUUHQWĆVHQVLQJĆĆ &
&
S
5
N
'
9GGBPLFUR
%$7-),/0
5
5
&
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5
5
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9GGBPLFUR
9GGBPLFUR
S
N
N
5
%$7-), /0
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'
+HWBWHPSHUDWXUH
5 N
8'
769
7HPSHUDWXUHĆDPSOLILH U
5 N
5
N
5
N
&
5
8%
769
9
&XUUHQWĆVHQVLQJĆĆ $
5
5
&
Q
9
&XUUHQWB&
9GGBPLFUR
Figure 5. STEVAL- IHM028V2 circuit schematic (5 of 6)
$09
UHI
+HWBWHPSHUDWXUH
UHI
5
N
5
N
5
N
5
N
76
8%
&
S
8
76%,/7
&
S
5
N
5
5
N
5
5
N
N
5
N
5
)DQĆFRQWUROOH U
5
N
8$
76
&
Q
'
1
4
%&
)$1
)$1
+HWBWHPSHUDWXUH
6'
2YHUKHDWĆFRPSDUDWR U
&
Q
9
9
9
73
73
73
73
73
73
73
73
73
73
73
73
&
Q
&XUUHQWB&
&XUUHQWB%
&XUUHQWB$
3:0&+
3:0&/
3:0%+
3:0%/
3:0$+
3:0$/
SKDVHB&
SKDVHB%
SKDVHB$
73
73
73
73
73
73
73
73
73
73
5
N
7HVWĆSLQ V
W
57
17&Ć N
+HDWVLQNĆWHPSHUDWXU H
17&BWHPS
9
UHI
9
9
%UDNHĆFRQWURO
%XVBY ROWDJH
0BSKDVHB&
0BSKDVHB%
0BSKDVHB$
+HWBWHPSHUDWXUH
Figure 6. STEVAL-IHM028V2 circuit schematic (6 of 6)
$09