sames
SA9605A
THREE PHASE POWER/ENERGY METERING
IC WITH INSTANTANEOUS PULSE OUTPUT
n
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
Operates over a wide temperature
range
Current transformers for sensing
Excellent long term stability
Easily adaptable to different signal
levels
Precision voltage reference on-chip
Pin selectable pulse rates
Supports tamper detection
n
n
n
n
n
n
PIN CONNECTIONS
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
1
20
IIP2
is proportional to the absolute power con-
2
19
IIN2
sumption. The SA9605A performs the
18
3
IVN3
calculation for active power.
17
4
IIP3
The method of calculation takes the power
16
5
IIN3
factor into account.
VDD
6
15
Energy consumption is determined by the
14
FOUT1
7
power measurement being integrated over
13
time.
FOUT2
8
12
9
DIR
The output of this innovative universal three
phase power/energy metering integrated
11
OSC1
10
circuit, is ideally suited for applications such
DR-01109
as residential and industrial energy metering
and control.
The SA9605A integrated circuit is available
Package: DIP-20
in both 20-pin dual-in-line plastic (DIP-20),
SOIC-20
as well as 20-pin plastic small outline (SOIC-
20) package types.
4452
PDS039-SA9605A-001
Rev. B
IVP2
IIN1
IIP1
IVN1
GND
VREF
VSS
PGM1
PGM0
OSC2
1/14
14-03-97