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SA2002PPA Datasheet(PDF) 1 Page - Sames

No. de pieza SA2002PPA
Descripción Electrónicos  Programmable Single Phase Kilowatt-hour Energy IC for Mechanical Counter Application
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Fabricante Electrónico  SAMES [Sames]
Página de inicio  http://www.sames.co.za
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FEATURES
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Provides a single chip solution for energy meters with a
mechanical display
No external crystal or resonator required
Precision on chip oscillator (<60ppm/°C drift)
Direct stepper motor/impulse counter drive
Calibration and setup stored on external EEPROM - no
trimpots required
Flexible programmable features
Unidirectional and bi-directional power and energy
measurement
sames
Programmable Single Phase Kilowatt-hour
Energy IC for Mechanical Counter
Application
SA2002P
1/14
SPEC-0087 (REV. 5)
05-09-02
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Can measure AC or DC energy.
Meets the IEC 61036 Specification for Class 1 AC Watt
hour meters
Less than 1% error over a dynamic range of 1:1000
Protected against ESD
Total power consumption rating below 30mW
Adaptable to different types of sensors
Operates over a wide temperature range
Precision voltage reference on-chip (<100ppm/°C drift)
DESCRIPTION
The SAMES SA2002P provides a single chip solution for
single phase mechanical counter based energy meters. A
precision oscillator, that replaces an external crystal is
integrated on chip.
The SA2002P does not require any external trim-pots. All
required calibration and configuration data is read from a small
external EEPROM. The data stored in the EEPROM consists
of direction mode (unidirectional or bidirectional), calibration
data, meter rated conditions, LED pulse rate, counter pulse
width, counter resolution and creep threshold. A
programmable high frequency pulse output is available on the
LED output for meter calibration purposes.
The SA2002P single phase kWh metering integrated circuit
generates a pulse rate with a frequency proportional to the
power consumption. The SA2002P performs active power
measurement and takes the power factor into account.
The SA2002P integrated circuit is available in 16 pin dual-in-
line plastic (PDIP16) and small outline (SOIC16) package
types.
Figure 1: Block diagram
IIP
IIN
IVP
GND
VREF
DR-01607
POWER
TO
PULSE RATE
DIRO
V
DD
V
SS
POWER
INTEGRATOR
ANALOG
SIGNAL
PROCESSING
TIMING
OSC
VOLTAGE
REF.
IIC BUS
INTERFACE
LED
MOP
MON
RLOAD
TEST
SCL
SDA
FMO


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