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SA2002H Datasheet(PDF) 3 Page - Sames

Part No. SA2002H
Description  Single Phase Bi-directional Power / Energy Metering IC with Instantaneous Pulse Output
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Maker  SAMES [Sames]
Homepage  http://www.sames.co.za
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sames
SA2002H
http://www.sames.co.za
PIN DESCRIPTION
8
Pin
14
Pin
16
Pin
20
Pin
Designation
Description
8
14
16
20
GND
Analog Ground. The voltage to this pin should be mid-way
between V
and V .
DD
SS
4
5
5
8
V
DD
Positive supply voltage. The voltage to this pin is typically +2.5V
if a shunt resistor is used for current sensing or in the case of a
current transformer a +5V supply can be applied.
6
10
9
14
V
SS
Negative supply voltage. The voltage to this pin is typically -2.5V
if a shunt resistor is used for current sensing or in the case of a
current transformer a 0V supply can be applied.
7
13
15
19
IVP
Analog Input for Voltage. The current into the A/D converter
should be set at 14µA
at nominal mains voltage. The
RMS
voltage sense input saturates at an input current of ±25µA peak.
1, 2
1, 2
1, 2
1, 2
IIN, IIP
Inputs for current sensor. The shunt resistor voltage from each
channel is converted to a current of 16µA
at rated conditions.
RMS
The current sense input saturates at an input current of ±25µA
peak.
3
3
3
3
VREF
This pin provides the connection for the reference current setting
resistor. A 24kW resistor connected to V set the optimum
SS
operating condition.
5
8
6
12
FOUT
Pulse rate output. Refer to pulse output format for a description
of the pulse rate.
4
4
4
6
8
5
7
10
6
12
12
7
9
14
10
11
16
17
18
TP1
TP2
TP3
TP4
TP5
TP6
TP7
TP8
TP9
TP10
Leave pins unconnected.
13
N.A.
9
7
13
DIR
Direction output. The direction of the energy flow is indicated on
this output.
N.A.
11
11
15
FMO
Voltage sense zero crossover. The FMO output generates pulses
on energy rising edge of the mains voltage.




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