Three Phase Bidirectional Power/Energy
Metering IC with Instantaneous Pulse Output
SA2005F
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Operates over a wide temperature range
Uses current transformers for current sensing
Easily adaptable to different signal levels
Precision voltage reference on chip
Precision oscillator on chip.
Protected against ESD
sames
DESCRIPTION
The SAMES SA2005F is an enhancement of the SA9105F. A
precision oscillator and the loop capacitors are integrated on
chip.
The SAMES SA2005F three phase bidirectional power/energy
metering integrated circuit generates pulse rate outputs for
positive and negative energy directions. The frequency of the
pulses is proportional to the measured power consumption.
The SA2005F performs active power calculation.
The method of calculation takes the power factor into account.
Energy consumption is determined by integrating the power
measurement over time.
This innovate universal three phase power/energy metering
integrated circuit is ideally suited for applications such as
residential and industrial energy metering and control.
The SA2005F integrated circuit is available in 20 pin dual-in-
line plastic (DIP-20), and 20 pin small outline (SOIC-20)
package types.
VDD VSS
PGM0 PGM1
IIN1
IIP1
IVN1
IIN2
IIP2
IVN2
IIN3
IIP3
IVN3
GND
I1
X
V1
I2
X
V2
I3
X
V3
INTEGRATE
AND
AVERAGE
POWER
TO
PULSE
RATE
FOUT
DIR
REF
TIMING & CONTROL
OSC
Dr-01570
VREF
TEST
Figure 1: Block Diagram
TCLK
SPEC-0042 (REV. 1)
1/10
03-07-00
SAMES [ SAMES ]
