SA2007H
ssaammeess
PIN DESCRIPTION
Designation
PIN
Description
Analog Ground. The voltage to this pin should be mid-way between V and V .
SS
20
AGND
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.
V
DD
8
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.
V
SS
14
Analog Input for Voltage. The current into the A/D converter should be set at 14µA at
RMS
19
IVP
nominal mains voltage. The voltage sense input saturates at an input current of ±25µA peak.
Inputs for current sensor - Channel 1 and Channel 2. The shunt resistor voltage from each
1, 2,
3, 4
IIN1, IIP1
IIN2, IIP2
channel is converted to a current of 16µA at rated conditions. The current sense input
RMS
saturates at an input current of ±25µA peak.
This pin provides the connection for the reference current setting resistor. A 24kW resistor
5
VREF
connected to V sets the optimum operating condition.
SS
This logic input is used to select between latched or unlatched condition for the pulse and
direction outputs.
6
7
9
OMODE
RP
A logic input is used to reset the latched outputs which is required after an interrupt has
occurred.
FMO
The zero crossover of the voltage sense input is signaled on this pin.
Configure / Test inputs. For normal operations these pins must be connected to V .
SS
10, 15
12
TCLK, TEST
INT
This logic output will indicate a change in status of the pulse or direction outputs.
Pulse outputs. The P1 and P2 outputs give instantaneous pulse outputs of channel 1 and
channel 2 respectively. The pulse is active low with a pulse width of 71.5µs for positive energy
and doubles for reverse energy.
17, 13
P1, P2
D1, D2
NC
Direction output. These outputs indicate the energy flow direction of each channel.
No Connection.
18, 16
11
ORDERING INFORMATION
IIN1
IIP1
1
20 AGND
Part Number
SA2007HPA
SA2007HSA
Package
DIP-20
IVP
2
19
IIN2
IIP2
3
18 D1
SOIC-20
P1
17
4
VREF
OMODE
RP
D2
5
16
15
14
13
12
11
TEST
6
VSS
7
VDD
P2
8
INT
FMO
9
TCLK
NC
10
DR-01620
Figure 2: Pin connections: Package: DIP-20, SOIC-20
3/10
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