sames
SA9604A
PDS039-SA9604A-001 REV. 5 29-05-00
FEATURES
■ Performs bidirectional active and
reactive power/energy measurement
■ Voltage and frequency measurement
■ Individual phase information
accessable
■ SPI communication bus
■ Meets the IEC 521/1036 Specification
requirements for Class 1 AC Watt hour
meters
■ Protected against ESD
■ Uses current transformers for current
sensing
■ Excellent long term stability
■ Operates over a wide temperature
range
■ Precision Voltage Reference on-chip
THREE PHASE BIDIRECTIONAL POWER/ENERGY
METERING IC WITH SERIAL SPI INTERFACE
SA9604A
1/20
PIN CONNECTIONSDESCRIPTION
The SAMES SA9604A Bidirectional Three
Phase Power/Energy metering integrated
circuit has a serial interface, ideal for use
with a µ-Controller. The SA9604A performs
the calculation for active and reactive power
or energy, mains voltage sense and
frequency.
The measurements performed and the
resultant register values are provided for
individual phases.
The integrated values for active and reactive
energy, as well as the mains voltage sense
and frequency information, are accessable
through the SPI as 24 bit values.
This innovative universal three phase power/
energy metering integrated circuit is ideally
suited for energy calculations in applications
such as primary industrial metering and
factory energy metering and control.
The SA9604A integrated circuit is available
in both 20 pin dual-in-line plastic (DIP-20),
as well as 20 pin small outline (SOIC-20)
package types.
Package: DIP-20
SOIC-20
DD
SC1
150
CK
0
DR-01306
7
8
9
10
IP 2
IN2
VP3
IP 3
IN3
V
1
2
6
4
5
3
OSC2
SS
V
14
CS
DI
13
12
11
VREF
IVP2
IVP1
20
GND
IIN 1
IIP1
19
18
17
16
15
