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Sames - Programmable Three Phase Power / Energy Metering IC for Stepper Motor / Impulse Counter Applications

Numéro de référence SA2005P
Description Programmable Three Phase Power / Energy Metering IC for Stepper Motor / Impulse Counter Applications
Fabricant Sames 
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SA2005P fiche technique
Programmable Three Phase Power / Energy Metering
IC for Stepper Motor / Impulse Counter Applications
SA2005P
FEATURES
+ Direct drive for electro-mechanical counters or stepper
motors
+ Calibration and setup stored on external EEPROM - no
trim-pots required
+ Flexible programmable features providing ease of
implementation for meter manufacturers
+ Per phase energy direction and voltage fail indication
+ Precision oscillator on chip
sames
+ Meets the IEC 521/1036 Specification requirements for
Class 1 AC Watt hour meters
+ Operates over a wide temperature range
+ Easily adaptable to different signal levels
+ Adaptable to different types of sensors
+ Precision voltage reference on-chip
+ Protected against ESD
DESCRIPTION
The SAMES SA2005P provides a single chip active energy
metering solution for three phase mechanical counter-based
meter designs.
Th SA2005P does not require any external trim-pots or resistor
ladders for meter calibration. Calibration and meter
configuration information is stored on a small external
EEPROM.
Meter setup stored on the EEPROM includes various metering
direction modes (total sum, absolute sum, positive or negative
energy) phase calibration data, rated metering conditions,
LED pulse rate, counter pulse width, counter resolution and
creep current.
A programmable rate pulse output is available for meter
calibration purposes. Per phase voltage fail and voltage
sequence faults as well as energy direction indication are
available as LED outputs. Programmable dividers enable
various mechanical counter or stepper motor counter
resolutions.
A precision oscillator, that replaces an external crystal, is
integrated on chip. A voltage reference is integrated on chip.
The SA2005P integrated circuit is available in 24-pin dual in
line plastic (DIP-24) and small outline (SOIC-24) package
options.
VDD VSS
IIN1
IIP1
IVN1
IIN2
IIP2
IVN2
IIN3
IIP3
IVN3
GND
I1 CHANNEL
X
V1 BALANCE
I2
CHPARNONGE.L
PROGRAM-
POWER
TO
X MABLE
V2 BAALDADNECRE
PULSE
ADDER
RATE
I3
X CHANNEL
V3 BALANCE
LED
MON
MOP
PH / DIR
PH1
PH2
PH3
REF
TIMING & CONTROL OSC INTERFACE
RLOAD
dr-01605
VREF
TEST
SCL SDA
Figure 1: Block diagram
SPEC-0086 (REV. 2)
1/16
07-02-01

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