SA9605A
PIN DESCRIPTION
Pin
16
6
14
17
20
3
19
18
2
1
5
4
10
11
7
8
9
12
13
15
Designation
Description
GND
V
DD
V
SS
IVN1
IVN2
IVN3
IIN1
IIP1
IIN2
IIP2
IIN3
IIP3
OSC1
OSC2
FOUT1
FOUT2
DIR
PGM0
PGM1
VREF
Ground
Positive Supply Voltage
Negative Suply Voltage
Analog input for Voltage : Phase 1
Analog input for Voltage : Phase 2
Analog input for Voltage : Phase 3
Inputs for Current sensor : Phase 1
Inputs for Current sensor : Phase 2
Inputs for Current sensor : Phase 3
Connections for crystal or ceramic resonator
(OSC1 = Input ; OSC2 = Output)
Pulse rate outputs
Direction indicator
FOUT2 Frequency select pins
Connection for current setting resistor
FUNCTIONAL DESCRIPTION
The SAMES SA9605A is a CMOS mixed signal Analog/Digital integrated circuit, which
performs three phase power/energy calculations over a range of 1000:1, to an overall
accuracy of better than Class 1.
The SA9605A in both DIP-20 and SOIC-20 package options is functionally similar to the
SA9105E and SA9105F with the advantage of no external loop capacitors.
The integrated circuit includes all the required functions for 3-phase power and energy
measurement such as oversampling A/D converters for the voltage and current sense
inputs, power calculation and energy integration. Internal offsets are eliminated through
the use of cancellation procedures.
The SA9605A generates pulses, the frequency of which is proportional to the power
consumption. Two frequency outputs (FOUT1 and FOUT2) are available. The pulse rate
follows the instantaneous power measured.
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sames
SAMES [ SAMES ]
