DESCRIPTION
The SAMES SA9108F Two Phase bidirec-
tional Power/Energy metering integrated
circuit generates pulse rate outputs for
positive and negative energy directions,
the frequency of which is proportional to the
power consumption. The SA9108F
performs the calculation for active power.
The method of calculation takes the power
factor into account.
Energy consumption is determined by the
power measurement being integrated over
time.
The output of this innovative universal two
phase power/energy metering integrated
circuit is ideally suited for applications such
as residential and industrial energy metering
and control.
The SA9108F integrated circuit is available
in 40 pin dual-in-line plastic (DIP-40), as
well as 44 pin plastic leaded chip carrier
(PLCC-44) package types.
SA9108F
TWO PHASE BIDIRECTIONAL POWER/ENERGY
METERING IC WITH INSTANTANEOUS PULSE OUTPUT
Package: DIP-40
1/12
PIN CONNECTIONS
4364 PDS039-SA9108F-001 Rev. B 09-01-97
sames
FEATURES
n Performs bidirectional one or two phase
power and energy measurement
n Meets the IEC 521/1036 Specification
requirements for Class 1 AC Watt hour
meters
n Operates over a wide temperature
range
n Adaptable to different types of current
sensors
n Excellent long term stability
n Easily adaptable to different signal
levels
n Precision voltage reference on-chip
n Two pulse rate output formats available
n Protected against ESD
DR-00940
TP11
11
COPP
CONP
OSC2
OSC1
TP18
TP17
SS
CIPP
CINP
V
16
17
18
19
20
12
13
14
15
CIN1
1
CIP2
CIN2
TP10
IIN1
IIP1
IIN2
IIP2
TP4
TP5
6
7
8
9
10
3
5
4
2
TP30
30
TP24
FOUT1
25
21
22
23
24
TP22
FOUT2
DIR
V
TP27
TP26
DD
29
28
27
26
VREF
CIP1
40
GND
35
IVP1
IVP2
TP32
TP31
34
31
32
33
COP1
CON1
CON2
COP2
36
37
38
39