SA2007M Datasheet, PDF (3/10 Pages) Sames – Single Phase Power/Energy Metering IC with Tamper Detection

SA2007M
PIN DESCRIPTION
PIN
Designation
20
GND
8
V_DD
14
V_SS
19
IVP
1, 2,
IIN1, IIP1
3, 4
IIN2, IIP2
5
VREF
6, 7
9, 12
MP0, MP1
MON, MOP
13
LED
15
RATED
16
SEL1
17
ELT
18
DIRO
11
NC
10
TCLK
sames
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.
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.
Inputs for current sensor - channel 1 and channel 2. The shunt resistor voltage from each
channel is converted to a current of 16µA_RMS 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 sets the optimum operating condition.
Motor pulse rate select inputs. Described under Input Signals.
Motor pulse outputs. These outputs can be used to drive an impulse counter or stepper motor
directly.
Calibration LED output. Refer to section Led Output (LED) for the pulse rate output options.
Rated condition select input. Described under Input Signals.
Current channel select output. This output indicates which channel is been used for kWh
metering.
Earth loop tamper output. This output indicates an earth loop tamper condition.
Direction output. This output indicates the energy flow direction.
No Connection.
Test input. Connect to V_SS for normal operation.
IIN1 1
IIP1 2
IIN2 3
IIP2 4
VREF 5
MP1 6
MP0 7
VDD ₈
MON 9
TCLK 10
20 GND
19 IVP
18 DIRO
17 ELT
16 SEL1
15 RATED
14 VSS
13 LED
12 MOP
11 NC
ORDERING INFORMATION
Part Number
SA2007MPA
SA2007MSA
Package
DIP-20
SOIC-20
DR-01595
Figure 2: Pin connections: Package: DIP-20, SOIC-20
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PRELIMINARY