sames
FEATURES
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SA9110A
MONOCHIP THREE PHASE BIDIRECTIONAL
KILOWATT HOUR METERING IC
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Performs bidirectional energy meter-
ing and directly drives a LCD with 7
digits plus announciators
4 externally selectable on-chip tariff
registers
An additional total energy register
Meets the IEC 521/1036 Specification
requirements for Class 1 AC Watt hour
meters
Optical interface for electronic reading
according to IEC1107 Mode D
Pulse output for calibration
Total power consumption rating below
40mW
Adaptable to different types of current
sensors
Operates over a wide temperature
range
Precision voltage reference on-chip
Protected against ESD
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DESCRIPTION
The SAMES SA9110A Three Phase bidi-
rectional energy metering integrated cir-
cuit has an integrated Liquid Crystal Dis-
play (LCD) driver for a 7 digit (7 segment)
display as well as 4 multiple tariff registers.
The SA9110A performs the active power
calculation.
The method of calculation takes the power
factor into account.
The measured energy is displayed in kilo
Watt hours (kWh). The SA9110A is capa-
ble of driving a display having a resolution
of 1/10 kWh.
This innovative universal energy metering
integrated circuit is ideally suited for en-
ergy measurement in three phase sys-
tems.
The SA9110A integrated circuit is avail-
able in a 68 pin plastic leaded chip carrier
(PLCC-68) package type.
4365
PIN CONNECTIONS
60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44
TP61
SDO
PCLK
PDTA
PGM
PB
SR[0]
SR[1]
V DD
V SS
VREF
CON3
COP3
IVP3
IVP2
IVP1
TP9
61
62
63
64
65
66
67
68
1
2
3
4
5
6
7
8
9
OSC1
OSC2
S[13]
S[12]
S[11]
S[10]
S[9]
S[8]
S[7]
S[6]
S[5]
S[4]
S[3]
S[2]
S[1]
S[0]
TP44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
COFF
R[3]
R[2]
R[1]
R[0]
VBA
V SS
CINP
CIPP
CONP
COPP
IIP3
IIN3
IIP2
IIN2
IIP1
IIN1
DR-00952
TP10
TP11
GND
TP13
COP2
CON2
CON1
COP1
CIP1
CIN1
CIP2
CIN2
CIP3
CIN3
TP24
V DD
TP26
Package: PLCC-68
1/18
PDS039-SA9110A-001
REV. B
28-08-1996
SAMES [ SAMES ]
