SA2007P Datasheet, PDF (3/12 Pages) Sames – Programmable Single Phase Energy Metering IC with Tamper Detection

SA2007P
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PIN DESCRIPTION
PIN Designation Description
20
GND
Analog Ground. The voltage to this pin should be mid-way between V_DD and V_SS.
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.
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.
19
IVP
The current into the A/D converter should be set at 14µA_RMS at nominal mains voltage. The voltage
sense input saturates at an input current of ±25µA peak.
1, 2, IIN1, IIP1 ^{Inputs for current sensor - channel 1 and channel 2. The shunt resistor voltage from each channel}
3, 4 IIN2, IIP2 ^{is converted to a current of 16µARMS at rated conditions. The current sense input saturates at an}
input current of ±25µA peak.
5
VREF
This pin provides the connection for the reference current setting resistor. A 24kW resistor
connected to V_SS sets the optimum operating condition.
6
SCL
Serial clock output. This output is used to strobe data from the external EEPROM.
7
SDA
Serial data. Send and receive data from an external EEPROM.
9, 12 MON, MOP Motor pulse outputs. These outputs can be used to drive an impulse counter or stepper motor directly.
13
LED
Calibration LED output. Refer to section Led Output (LED) for the pulse rate output options.
15
RLOAD
Configuration reload input. A falling edge will trigger a register reload from the external EEPROM.
16
SEL1
Current channel select output. This output indicates which channel is been used for kWh metering.
17
ELT
Earth loop tamper output. This output indicates an earth loop tamper condition.
18
DIRO
Direction output. This output indicates the energy flow direction
10, 11 _{TEST, TCLK} Test input. Connect to V_SS for normal operation.
IIN1 1
IIP1 2
IIN2 3
IIP2 4
VREF 5
SCL 6
SDA 7
VDD ₈
MON 9
TEST 10
20 GND
19 IVP
18 DIRO
17 ELT
16 SEL1
15 RLOAD
14 VSS
13 LED
12 MOP
11 TCLK
DR-01595
Figure 2: Pin connections: Package: DIP-20, SOIC-20
ORDERING INFORMATION
Part Number
SA2007PPA
SA2007PSA
Package
DIP-20
SOIC-20
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PRELIMINARY