SA9903B
PERFORMANCE GRAPHS
R1: 1.2
R2: 1.2
VDD
VDD
R3: 1.5k
R4: 1.5k
R5: 1.5k
R6: 1.5k
R7: 250k
R8: 1k
Single Phase Source
R3
R4
C1
IIP
0.2A
to 100A
50Hz AC
R1
R2
R9: 100k
R10: 24k
CT1: TZ76V (2500:1)
OSC1
OSC2
GND
R5
C2
R6
CT1
X1
IIN
P1:
1k
Phase angle
between voltage
and current
C1: 22nF
C2: 22nF
C3: 5.6nF
C4: 220nF
C5: 220nF
C6: 1µF
R7
P1
0ꢀ to 360ꢀ
IVP
FMO
DI
R9
C3
SA9903B
220V
50Hz AC
R8
X1: 3.5795MHz
N
N
GND
GND
DO
SCK
CS
SPI interface to Controller
VDD
GND
VDD
C4
+
2.5V
DC
-
AGND VREF
GND
VSS
VSS
TEST
C6
+
2.5V
DC
GND C5
VSS
R10
-
VSS
Figure 4: Test circuit for performance graphs
1.0
0.8
1.0
PF = 1
VMains = 100%VNOM
0.8
0.6
PF = 0.5 LAG
PF = 0.5 LEAD
PF = -1
VMains = 50% VNOM
VMains = 115% VNOM
0.6
0.4
0.4
0.2
0.2
0.0
0.0
-0.2
-0.4
-0.6
-0.8
-1.0
-0.2
-0.4
-0.6
-0.8
-1.0
0.1
1
10
100
0.1
1
10
100
%IMAX
%IMAX
Graph 1: Active Energy, Freq = 50Hz, VMains = VNOM
,
Graph 2: Active Energy, PF = 1, Freq = 50Hz,
Temp = 25°C, VDD-VSS = 5.0V
Temp = 25°C, VDD-VSS = 5.0V
1.0
1.0
0.8
Freq = 50Hz
VDD-VSS = 5.0V
VDD-VSS = 4.5V
VDD-VSS = 5.5V
0.8
Freq = 45Hz
Freq = 65Hz
0.6
0.4
0.6
0.4
0.2
0.2
0.0
0.0
-0.2
-0.4
-0.6
-0.8
-1.0
-0.2
-0.4
-0.6
-0.8
-1.0
0.1
1
10
100
0.1
1
10
100
%IMAX
%IMAX
Graph 3: Active Energy, PF = 1, VMains = VNOM
,
Graph 4: Active Energy, PF = 1, Freq = 50Hz,
VMains = VNOM, Temp = 25°C
Temp = 25°C, VDD-VSS = 5.0V
SPEC-0051 (REV. 5)
29-09-2017
6/17
SAMES [ SAMES ]
