SA2002E Datasheet, PDF (3/10 Pages) Sames – Single Phase Uni-directional Power / Energy Metering IC with Instantaneous Pulse Output

SA2002E
sames
PIN DESCRIPTION
8
14
16
20
Pin
Pin
Pin
Pin
8
14
16
20
4
5
5
8
6
10
12
14
7
13
15
19
1, 2
1, 2
1, 2
1, 2
3
3
3
3
5
8
6
12
4
4
4
6
7
5
7
8
6
9
9
7
11
10
9
12
11
10
13
11
14
13
15
16
17
18
Designation
GND
V_DD
V_SS
IVP
IIN, IIP
VREF
FOUT
TP1
TP2
TP3
TP4
TP5
TP6
TP7
TP8
TP9
TP10
TP11
TP12
Description
Analog Ground. The voltage to this pin should be mid-way
between V_DD and V_SS.
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.
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.
Analog Input for Voltage. The current into the A/D converter
should be set at 14µA_{RM S}at nominal mains voltage. The
voltage sense input saturates at an input current of ±25µA peak.
Inputs for current sensor. The shunt resistor voltage from each
channel is converted to a current of 16µA_{RM S}at rated conditions.
The current sense input saturates at an input current of ±25µA
peak.
This pin provides the connection for the reference current setting
resistor. A 24kW resistor connected to V_SS set the optimum
operating condition.
Pulse rate output. Refer to pulse output format for a description
of the pulse rate.
Leave pins unconnected.
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