SA9105A Datasheet, PDF (9/12 Pages) Sames – THREE PHASE UNIDIRECTIONAL POWER/ENERGY METERING IC WITH PULSE OUTPUT

SA9105A
Figure 1: Application Circuit for Three Phase Power/Energy Measurement.
MAINS VOLTAGES
LINE 1
LINE 2
R1
R1A
R2
R2A
LINE 3
R3
R3A
N
C4
0V
1
40
C5
2
39
3
38
FROM CTs
R18
VI1P
VI1N
R19
VI2P
VI2N
R20
VI3P
VI3N
4
37
C6
5
36
R8
6
35
R 9 _{7 SA9105A 34}
R10
8
33
R11
9
DIP-40
32
R12
10
31
R13
11
IC-1
30
12
29
2.5V
2.5V ^C7
13
28
14
27
C8
15
26
16
25
17
24
0V
18
23
19
22
20
21
XTAL
5V
C9
R7
C10
R15 + C1
R16 + C2
R17 + C3
2.5V
R6 R5 R4 R21
C11
C14
5V ^{P6 P5}
C13
0V
FOUT3
0V
0V
FOUT2
FOUT1
0V
DR-00233
C12
R14
P14
0V
sames
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