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PDF SA9102H Data sheet ( Hoja de datos )
| Número de pieza | SA9102H | |
| Descripción | SINGLE PHASE BIDIRECTIONAL POWER/ENERGY METERING IC WITH INSTANTANEOUS PULSE OUTPUT | |
| Fabricantes | Sames | |
| Logotipo |  |
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sames
SA9102F/SA9102H
SINGLE PHASE BIDIRECTIONAL POWER/ENERGY
METERING IC WITH INSTANTANEOUS PULSE OUTPUT
FEATURES
n Performs bidirectional power and n Adaptable to different types of current
energy measurement
sensors
n Meets the IEC 521/1036 Specification n Operates over a wide temperature
requirements for Class 1 AC Watt hour
range
meters
n Precision voltage reference on-chip
n Protected against ESD
n Two output signal formats available
n Power consumption rating typically
25mW
DESCRIPTION
The SAMES SA9102F and SA9102H Single
Phase bidirectional Power/Energy metering
integrated circuits generate pulse rate
outputs for positive and negative energy
directions, the frequency of which is
proportional to the power consumption.
These devices perform 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.
These innovative universal power/energy
metering integrated circuits are ideally suited
for energy calculations in applications such
as electricity dispensing systems (ED's),
residential municipal metering and factory
energy metering and control.
The SA9102F and SA9102H integrated
circuits are available in both 20 pin dual-in-
line plastic (DIP-20), as well as 20 pin small
outline (SOIC-20) package types.
4352
PIN CONNECTIONS
IIN 1
IIP 2
VREF 3
CPON 4
CPOP 5
CPIN 6
CPIP 7
VDD 8
TP9 9
OSC2 10
DR-00906
20 GND
19 IVP
18 CON
17 COP
16 CIN
15 CIP
14 V SS
13 DIR
12 FOUT
11 OSC1
Package: DIP-20
SOIC-20
PDS039-SA9102F-001 REV. B
1/14
08-01-97
1 page  
SA9102F/SA9102H
1. Power calculation
In the Application Circuit (Figure 1), the voltage drop across the shunt will be
between 0 and 16mV (0 to 80A through a shunt resistor of 200µΩ). This voltage is
converted to a current of between 0 and 16µA, by means of resistors R1 and R2.
The current sense input saturates at an input current of ±25µA peak.
For the voltage sensor input, the mains voltage (230VAC) is divided down through
a divider to 14V. The current into the A/D converter input is set at 14µA at nominal
mains voltage, via resistor R4 (1MΩ).
In this configuration, with a mains voltage of 230V and a current of 80A, the output
frequency of the SA9102F and SA9102H power meter chips at FOUT (Pin 12) is
64Hz. In this case 1 pulse will correspond to an energy consumption of 18.4kW/
64Hz = 287.5Ws.
2. Analog Input configuration
The input circuitry of the current and voltage sensor inputs are illustrated below.
These inputs are protected against electrostatic discharge through clamping
diodes.
The feedback loops from the outputs of the amplifiers AI and AV generate virtual
shorts on the signal inputs. Exact duplications of the input currents are generated
for the analog signal processing circuitry.
IIP
CURRENT
SENSOR
INPUTS
IIN
IVP
VOLTAGE
SENSOR
INPUT
V DD
V SS
V DD
V SS
V DD
V SS
AI
AV
DR-00908
sames
GND
5/14
5 Page 
SA9102F/SA9102H
Parts List for Application Circuit: Figure 2
Item Symbol Description
1 IC-1 SA9102F/SA9102H
2 XTAL Crystal, 3.5795MHz
3 RSH Resistor
4 R1 Resistor, 1%, metal
5 R2 Resistor, 1%, metal
6 R3 Resistor, 390k, (230VAC), 1%, metal
7 R4 Resistor, 1M, 1/4W, 1%, metal
8 R6 Resistor, 24k, 1/4W, metal
9 R7 Resistor, 24k, 1/4W, 1%, metal
10 R8
11 R9
Resistor, 2.2k, 1/4W, 1%, metal
Resistor, 2.2k, 1/4W, 1%, metal
12 C1
Capacitor, 560pF
13 C2
Capacitor, 560pF
14 C3
15 C4
Capacitor, 3.3nF
Capacitor, 3.3nF
16 C9
17 C10
Capacitor, 820nF
Capacitor, 100nF
18 C11
Capacitor
19 CT
Current Transformer
Detail
DIP-20/SOIC-20
Colour burst TV
Note 1
Note 2
Note 2
Note 3
Note 4
Note 1:
Note 2:
Note 3:
Note 4:
See TYPICAL APPLICATIONS when selecting the value of RSH.
Resistor (R1and R2) values are dependant upon the selected value of
RSH.
Capacitor (C9) to be positioned as close to Supply Pins (VDD & VSS) of IC-1,
as possible.
Capacitor (C11) selected for DC blocking and to minimize phase error
introduced by current transformer (typically 1.5µF).
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11/14
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| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet SA9102H.PDF ] | |
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