SA2002P
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.
Analog Input for Voltage. 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. 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 24k
W
resistor
connected to V
SS
set the optimum operating condition.
Serial clock output. This output is used to strobe data from the external EEPROM.
Serial data. Send and receive data from an external EEPROM.
Motor pulse outputs. These outputs can be used to drive an impulse counter or stepper
motor directly.
Test input. For normal operation this pin must be connected to V
SS.
Calibration LED output. Refer to section LED Output (LED) for the pulse rate output options.
PIN DESCRIPTION
Pin
16
5
9
15
Designation
GND
V
DD
V
SS
IVP
1, 2
IIN, IIP
3
12
11
7, 8
10
13
4
6
14
VREF
SCL
SDA
MON, MOP
TEST
LED
RLOAD
FMO
DIRO
Triggers the SA2002P to reload data from the external EEPROM.
Mains zero crossing output.
Direction output. This output indicates the energy flow direction.
ORDERING INFORMATION
IIN
IIP
VREF
RLOAD
V
DD
FMO
MON
MOP
1
2
3
4
5
6
7
8
dr-01606
16
15
14
13
12
11
10
9
Part Number
GND
IVP
DIRO
LED
SCL
SDA
TEST
V
SS
Package
PDIP16
SOIC16
SA2002PPA
SA2002PSA
Figure 2: Pin connections: Package: PDIP16, SOIC16
3/14
SAMES [ SAMES ]
