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PDF SA9607P Data sheet ( Hoja de datos )
| Número de pieza | SA9607P | |
| Descripción | Programmable Single Phase Energy Metering IC with Tamper Detection | |
| Fabricantes | Sames | |
| Logotipo |  |
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Programmable Single Phase Energy Metering
IC with Tamper Detection
SA9607P
FEATURES
s Provides direct interface to mechanical counters
s Calibration and setup stored on external EEPROM - no
trimpots required
s Monitors both Live and Neutral for tamper detection
s Performs bidirectional energy measurement
s Flexible programmable features
DESCRIPTION
The SAMES SA9607P is a single-phase bidirectional energy
metering integrated circuit. It provides a cost effective 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 lines.
Direction detection of energy flow as well as other common
tamper conditions are flagged.
The power consumption on both the live and neutral are
s Meets the IEC 521/1036 Specification for Class 1 AC Watt
hour meters
s Total power consumption rating below 25mW
s Adaptable to different types of sensors
s Operates over a wide temperature range
s Precision voltage reference on chip.
continuously measured and the larger of the two is selected
for energy metering.
The SA9607P drives the calibration LED and the
electromechanical counter directly.
The SA9607P does not require any external trim-pots. All
required calibration and configuration data is read from a
small external EEPROM.
The SA9607P integrated circuit is available in 20 pin dual-in-
line plastic (DIP-20) and small outline (SOIC-20) package
types.
SPEC-0006 (REV. 2)
VDD VSS
IIN 1
IIP 1
IIN 2
IIP 2
IV P
GND
ANALOG
SIGN AL
PRO-
C E S S IN G
AND
POW ER
CAL-
C U LAT IO N
VO LTAG E
R E F.
P O W ER 1 (D IGITA L)
P O W ER 2 (D IGITA L)
COM-
PA R AT O R
OSC
IIC
BUS
IN T E R-
FA C E
POW ER
TO
PULSE
R AT E
D r-01 565
VREF OSC1 OSC2 SCL SDA
CNF
E LT
SEL1
D IR O
LED
MOP
MON
Figure 1: Block Diagram
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24-05-00
1 page  
SA9607P
INPUT SIGNALS
VREF
The VREF pin is the reference for the bias resistor and is the
recommended point for analog calibration. With a bias resistor
of 24kΩ optimum conditions are set. Any changes to the bias
resistor will affect the output pulse rate quadratically (i.e.(R
= +5%,(f=10%).
Serial Data SDA
The SDA pin connects directly to the SDA pin of an external
EEPROM. The pin is used to transfer data between the
EEPROM to the SA9607P. An external pull up resistor in not
needed.
Serial Clock SCL
The SCL pin connects directly to the SCL of an external
EEPROM. The SCL output is used to strobe data at a rate of
50kHz out of the EEPROM. An external pull up resistor is not
needed.
Configuration CNF
A rising edge on the CNF pin, with DIRO high, will trigger a
register update from the external EEPROM. This feature may
be used during calibration to load updated register data in the
SA9607P. For normal operation of the SA9607P the CNF pin
should be connected to V .
SS
OUTPUT SIGNALS
Motor output (MOP, MON)
The motor pulse width is programmable for 71ms and 142ms.
The MON pulse will follow the MOP pulse within the selected
pulse width time. This prevents that the motor armature is in
the wrong position after a power failure. Both MOP and MON
outputs are active high. One energy pulse is represented by a
MOP pulse followed by a MON pulse. The motor drive wave
forms are shown in figure 4.
MOP
VDD
VSS
MON
VDD
VSS
DR-01559
t m t m tm
t = 71ms, 142ms
m
Figure 4: Motor drive on MON and MOP pins of device
LED output (LED)
Three options for the LED output pulse rate are available, 6400
and 3200 pulses per kWh, as well as a pulse rate of 1252
pulses per second at rated conditions. At 1252 pulses per
second tLED is 71µs, for the other options tLED is 10ms. The LED
output is active low as in figure 5.
VDD
LED
VSS
DR -01332
t LED
tLED = 10ms (6400 or 3200 pulses per kWh)
tLED = 71µs (1252 pulses per second)
Figure 5: LED pulse output
Selected input indication (SEL1)
The SA9607P continuously compares the power consumptions
on both channel 1 and channel 2 inputs. The larger of the two
measurements are used for pulse output generation. The
SEL1 output pin indicates which channel is currently being
used for the pulse output.
Signal
Output
SEL1
Value Description
0 Current Channel 1 selected (IIN1 / IIP1)
1 Current Channel 2 selected (IIN2 / IIP2)
Earth loop tamper indication (ELT)
In case the power measurements from both current channels
differ by more than 12.5%, (indicating a earth loop tamper
condition), the ELT output is set to zero. The SA9607P
continues to generate output pulses from the larger of the two
measured powers in this condition. The ELT output is active
low.
Direction indication (DIRO)
The SA9607P provides information about the energy flow
direction on pin DIRO. A logic 1 on pin DIRO indicates reverse
energy flow. Reverse energy flow is defined as the condition
where the voltage sense input and a current sense input are
out of phase (greater than 90 degrees).
Positive energy flow, when voltage sense and current sense
input are in phase, is indicated on pin DIRO as a logic 0.
The DIRO pin may be used to drive a LED in order to indicate
reverse energy.
Signal
Output
DIRO
Value Description
1 Reverse energy flow
0 Forward energy flow
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5 Page 
SA9607P
Parts List for Application Circuit: Figure 7
Item
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
Symbol
IC1
IC2
D1
D2
D3
D4
D5
D6
D7
D8
XTAL
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
R12
R13
R14
R15
R16
R17
R18
C1
C2
C3
C4
C5
C6
CT1
CT2
TX
IC3
M1
M0V
Description
SA9607P
AT24C01, or eqivalent device
Diode, Silicon 1N4007
Diode, Silicon 1N4007
Diode, Silicon 1N4007
Diode, Silicon 1N4007
Light emmitting diode, Red
Light emmitting diode, Green
Light emmitting diode, Amber
Light emmitting diode, Green
Crystal, 3.5759MHz
Resistor, 1/4W, 1%, metal
Resistor, 1/4W, 1%, metal
Resistor, 1/4W, 1%, metal
Resistor, 1/4W, 1%, metal
Resistor, 1M, 1/4W, 1%, metal
Resistor, 24k, 1/4W, 1%, metal
Resistor, 22k, 1/4W, 1%, metal
Resistor, 180k, 1/4W, 1%, metal
Resistor, 200k, 1/4W, 1%, metal
Resistor, 1/4W, 1%, metal
Resistor, 1/4W, 1%, metal
Resistor, 10Ω, 2W, Wire wound
Resistor, 1k, 1/4W, 1%, metal
Resistor, 1k, 1/4W, 1%, metal
Resistor, 1k, 1/4W, 5%, carbon
Resistor, 1k, 1/4W, 5%, carbon
Resistor, 1k, 1/4W, 5%, carbon
Resistor, 1k, 1/4W, 5%, carbon
Capacitor, 2200µF, 16V, electrolytic
Capacitor, 100µF, 16V, electrolytic
Capacitor
Capacitor, 220nF
Capacitor, 220nF
Capacitor, 820nF
Current Transformer
Current Transformer
Transformer, 230V/9V
78LC05, Voltage regulator
Bipolar step motor
400V, Metal oxide varistor
Detail
DIP-20/SOIC-20
Note 1
Note 1
Note 1
Note 1
Note 2
Note 2
Note 4
Note 3
Note 1:
Note 2:
Note 3:
Note 4:
Resistor (R1, R2, R3 and R4) values are dependant upon the selected value of R10 and R11.
See TYPICAL APPLICATION when selecting the value of R10 and R11.
Capacitor (C6) to be positioned as closed to Supply Pins (VDD & VSS) of IC-1, as possible.
Capacitor (C3) selected to minimize phase error introduced by current transformer (typically 1.5µF for normal CTs.)
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| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet SA9607P.PDF ] | |
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