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PDF SA9108F Data sheet ( Hoja de datos )
| Número de pieza | SA9108F | |
| Descripción | TWO PHASE BIDIRECTIONAL POWER/ENERGY METERING IC WITH INSTANTANEOUS PULSE OUTPUT | |
| Fabricantes | Sames | |
| Logotipo |  |
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SA9108F
TWO PHASE BIDIRECTIONAL POWER/ENERGY
METERING IC WITH INSTANTANEOUS PULSE OUTPUT
FEATURES
n Performs bidirectional one or two phase n Excellent long term stability
power and energy measurement
n Easily adaptable to different signal
n Meets the IEC 521/1036 Specification
levels
requirements for Class 1 AC Watt hour
meters
n
Precision voltage reference on-chip
n Operates over a wide temperature n Two pulse rate output formats available
range
n Protected against ESD
n Adaptable to different types of current
sensors
DESCRIPTION
The SAMES SA9108F Two Phase bidirec-
tional Power/Energy metering integrated
circuit generates pulse rate outputs for
positive and negative energy directions,
the frequency of which is proportional to the
power consumption. The SA9108F
performs the calculation for active power.
The method of calculation takes the power
factor into account.
Energy consumption is determined by the
power measurement being integrated over
time.
The output of this innovative universal two
phase power/energy metering integrated
circuit is ideally suited for applications such
as residential and industrial energy metering
and control.
The SA9108F integrated circuit is available
in 40 pin dual-in-line plastic (DIP-40), as
well as 44 pin plastic leaded chip carrier
(PLCC-44) package types.
PIN CONNECTIONS
CIN1
CIP2
CIN2
TP4
TP5
IIN1
IIP1
1
2
3
4
5
6
7
40 CIP1
39 COP1
38 CON1
37 CON2
36 COP2
35 GND
34 IVP1
IIN2 8
IIP2 9
TP10 10
TP11 11
33 IVP2
32 TP32
31 TP31
30 TP30
COPP 12
CONP 13
CIPP 14
CINP 15
29 VREF
28 V DD
27 TP27
26 TP26
VSS 16
TP17 17
25 DIR
24 TP24
TP18 18
OSC1 19
23 FOUT2
22 TP22
OSC2 20
21 FOUT1
DR-00940
Package: DIP-40
4364
PDS039-SA9108F-001
Rev. B
1/12
09-01-97
1 page  
PIN DESCRIPTION (Continued)
Pin Pin
PLCC-44 DIP-40 Designation
12 NC
24 NC
34 NC
44 NC
Description
Not connected
SA9108F
FUNCTIONAL DESCRIPTION
The SAMES SA9108F is a CMOS mixed signal Analog/Digital integrated circuit, which
performs two phase power/energy calculations over a dynamic range of greater than
1000:1, to an overall accuracy of better than Class 1.
The integrated circuit includes all the required functions for 2-phase power and energy
measurement such as oversampling A/D converters for the voltage and current sense
inputs, power calculation and energy integration. Internal offsets are eliminated through
the use of cancellation procedures.
The SA9108F generates pulses, the frequency of which is proportional to the power
consumption. The pulse rate follows the instantenous power measured. Direction
information is also provided.
1. Power Calculation
In the Application Circuit (Figure 1), the mains voltages from Line 1 and Line 2, are
converted to currents and applied to the voltage sense inputs IVP1 and IVP2. The
mains voltage (2 x 115 V) is divided down through voltage dividers to 14V. The
resulting input currents into the A/D converters are 14µARMS through the resistors R9
and R10.
For the current sense inputs the voltage drop across the current transformers'
terminating resistors are converted to currents of 16µARMS for rated conditions, by
means of resistors R5, R6, (Phase 1) and R7, R8 (Phase 2).
The signals providing the current information are applied to the current sensor inputs
IIN1, IIP1 and IIN2, IIP2.
In this configuration, with the mains voltage of 2 x 115 VAC and rated currents of
80A, the output frequency of the SA9108F energy metering integrated circuit at
FOUT1 is 64Hz. In this case 1 pulse will correspond to an energy consumption of
2 x 9.2 kW/64Hz = 287.5 Ws.
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5 Page 
ORDERING INFORMATION
Part Number
SA9108FPA
Package
DIP-40
SA9108FFA
PLCC-44
SA9108F
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11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet SA9108F.PDF ] | |
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