S i 8 4 x x I S O - E V B U G
8
Rev. 0.3
4. Si84xxISO Evaluation Board Schematic
VDD1(5V)
VDD2(5V)
VDD1(5V)
VDD2(5V)
VDD1(5V)
VDD2(5V)
VDD1(5V)
VDD2(5V)
Si8400 Populated
Si8421 Populated
Si8442 Populated
Si8463 Populated
TP11TP11
TP13TP13
TP40TP40
TP22TP22
ISOLATION
U2
Si8421
ISOLATION
U2
Si8421
VDD1
1
VDD2
8
B2
6
GND1
4
A2
3
GND2
5
A1
2
B1
7
J2
JUMPER
J2
JUMPER
1
2
TP4TP4
C3
1uF
C3
1uF
R2
1K
R2
1K
C1
1uF
C1
1uF
TP6TP6
R7
1K
R7
1K
TP1TP1
TP19TP19
TP21TP21
TP9TP9
TP27TP27
C8
1uF
C8
1uF
R8
1K
R8
1K
TP25TP25
TP12TP12
J4
JUMPER
J4
JUMPER
1
2
C5
1uF
C5
1uF
TP29TP29
TP14TP14
TP34TP34
TP31TP31
R3
1K
R3
1K
C2
1uF
C2
1uF
TP42TP42
TP35TP35
C4
1uF
C4
1uF
ISOLATION
U4
Si8463
ISOLATION
U4
Si8463
VDD1
1
VDD2
16
GND2
9
GND1
8
A1
2
A2
3
B3
13
B4
12
A3
4
A4
5
B1
15
B2
14
A5
6
B5
11
A6
7
B6
10
TP37TP37
J3
JUMPER
J3
JUMPER
1
2
TP20TP20
TP7TP7
TP26TP26
R1
1K
R1
1K
TP41TP41
TP15TP15
C6
1uF
C6
1uF
ISOLATION
U3
Si8442
ISOLATION
U3
Si8442
VDD1
1
VDD2
16
GND2
9
GND1
8
GND1
2
GND2
15
A1
3
A2
4
B3
12
B4
11
A3
5
A4
6
B1
14
B2
13
EN1
7
EN2
10
TP30TP30
TP23TP23
R6
1K
R6
1K
R4
1K
R4
1K
TP28TP28
TP32TP32
TP24TP24
R5
1K
R5
1K
J1
JUMPER
J1
JUMPER
1
2
C7
1uF
C7
1uF
TP36TP36
TP2TP2
TP38TP38
TP3TP3
TP39TP39
TP5TP5
ISOLATION
U1
Si8400
ISOLATION
U1
Si8400
AVDD
1
BVDD
8
BSCL
6
AGN
D
4
ASCL
3
BGN
D
5
ASDA
2
BSDA
7
TP10TP10
TP18TP18
TP8TP8
TP33TP33
TP16TP16
TP17TP17
Figure
7.
S
i84xxISO Evalua
tion Board Sche
matic
