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FEATURES
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SA9604A
THREE PHASE BIDIRECTIONAL POWER/ENERGY
METERING IC WITH SERIAL SPI INTERFACE
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Performs bidirectional active and
reactive power/energy measurement
Voltage and frequency measurement
Individual
accessable
phase
information
Protected against ESD
Uses current transformers for current
sensing
Excellent long term stability
Operates over a wide temperature
range
Precision Voltage Reference on-chip
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SPI communication bus
Meets the IEC 521/1036 Specification
requirements for Class 1 AC Watt hour
meters
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DESCRIPTION
PIN CONNECTIONS
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
1
20
IVP2
IIP 2
the calculation for active and reactive power
or energy, mains voltage sense and
IIN2
2
19
IIN1
frequency.
IVP3
3
18
IIP 1
The measurements performed and the
IIP 3
4
17
IVP1
resultant register values are provided for
individual phases.
5
16
G ND
IIN3
The integrated values for active and reactive
V DD
6
15
VREF
energy, as well as the mains voltage sense
and frequency information, are accessable
F1 50
7
14
V SS
through the SPI as 24 bit values.
8
13
CS
SCK
This innovative universal three phase power/
9
12
DI
D0
energy metering integrated circuit is ideally
suited for energy calculations in applications
O SC1
10
11
O SC2
such as primary industrial metering and
factory energy metering and control.
DR-01306
The SA9604A integrated circuit is available
in both 20 pin dual-in-line plastic (DIP-20),
Package: DIP-20
as well as 20 pin small outline (SOIC-20)
SOIC-20
package types.
1/20
SA9604A
PDS039-SA9604A-001
REV. 5
29-05-00
SAMES [ SAMES ]
