SPEC-0005 (REV. 2) 26-05-00
FEATURES
■ Provides direct interface to mechanical counters
■ Monitors Live and Neutral for tamper detection
■ Performs bidirectional energy measurement
■ Various setup modes selectable
■ Meets the IEC 521/1036 Specification for Class 1 AC Watt
hour meters
Single Phase Power/Energy Metering IC with
Tamper Detection
SA9607M
■ Total power consumption rating below 25mW
■ Adaptable to different types of sensors
■ Operates over a wide temperature range
■ Precision voltage reference on chip.
DESCRIPTION
The SAMES SA9607M is a single-phase bidirectional energy
metering integrated circuit. It provides a mono-chip solution
for energy meters with electro-mechanical displays, such as
stepper motors and impulse counters.
Two current sensor inputs allow the measurement of energy
consumption on both the live and neutral.
Direction detection of energy flow as well as other common
tamper conditions are flagged.
The power consumption on both the live and neutral are
continuously measured and the larger of the two is selected
for energy metering.
The SA9607M drives the calibration LED and the electro-
mechanical counter directly.
The SA9607M integrated circuit is available in 20 pin dual-in-
line plastic (DIP-20) and small outline (SOIC-20) package
types.
Figure 1: Block Diagram
1/12
IIN1
IIP1
IIP2
IVP
ANA LOG
SIGNAL
PRO-
CESSING
AND
POW ER
CAL-
CULATION
COM-
PAR ATOR
POW ER
TO
PUL SE R ATE
VOLTAGE
REF.
OSC
ELT
VS SVDD
SE L1
DIRO
LED
MOP
MON
RATED
VRE F
Dr-0 15 58
OSC1 OSC2 MP0MP1
POW ER 1 ( D IGITAL )
POW ER 2 ( D IGITAL )
GND
IIN2
