THREE PHASE POWER/ENERGY METERING
IC WITH INSTANTANEOUS PULSE OUTPUT
1/14
4452 PDS039-SA9605A-001 Rev. B 14-03-97
sames
FEATURES
n Functionally similar to the SA9105E
and SA9105F, with reduced number of
external components
n Output frequency represents the abso-
lute sum of energy on all three phases
n Performs one, two or three phase power
and energy measurement
n Meets the IEC 521/1036 Specification
requirements for Class 1 AC Watt hour
meters
Package: DIP-20
SOIC-20
n Operates over a wide temperature
range
n Current transformers for sensing
n Excellent long term stability
n Easily adaptable to different signal
levels
n Precision voltage reference on-chip
n Pin selectable pulse rates
n Supports tamper detection
PIN CONNECTIONS
SA9605A
DESCRIPTION
The SAMES SA9605A is an enhancement
of the SA9105E and SA9105F, as no external
capacitors are needed for the A/D converters.
The SAMES SA9605A Three Phase Power/
Energy metering integrated circuit generates
a pulse rate output, the frequency of which
is proportional to the absolute power con-
sumption. The SA9605A 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 three
phase power/energy metering integrated
circuit, is ideally suited for applications such
as residential and industrial energy metering
and control.
The SA9605A integrated circuit is available
in both 20-pin dual-in-line plastic (DIP-20),
as well as 20-pin plastic small outline (SOIC-
20) package types.
7
FOUT1
FOUT2
DIR
OSC1
8
9
10
DR-01109
IIP2
IIN2
IVN3
IIP3
IIN3
DD
V
2
6
4
5
3
1
14
V
SS
PGM1
PGM0
OSC2
11
12
13
IVP2
IIN1
IIP1
IVN1
GND
VREF
19
15
16
17
18
20
