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PDF SA9602HSA Datasheet ( Hoja de datos )

Número de pieza SA9602HSA
Descripción SINGLE PHASE BIDIRECTIONAL POWER/ENERGY METERING IC WITH INSTANTANEOUS PULSE OUTPUT
Fabricantes Sames 
Logotipo Sames Logotipo

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SA9602HSA Hoja de datos, Descripción, Manual
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SA9602H
SINGLE PHASE BIDIRECTIONAL POWER/ENERGY
METERING IC WITH INSTANTANEOUS PULSE OUTPUT
FEATURES
s Performs bidirectional power and s Total power consumption rating below
energy measurement
25mW
s Meets the IEC 521/1036 Specification s Adaptable to different types of current
requirements for Class 1 AC Watt hour
sensors
meters
s Operates over a wide temperature range
s Protected against ESD
s Precision voltage reference on-chip
DESCRIPTION
PIN CONNECTIONS
The SAMES SA9602H is an enhancement of
the SA9102H, as no external capacitors are
required for the A/D converters. The SA9602H
has a higher output pulse rate than the
SA9102H.
The SAMES SA9602H Single Phase
bidirectional Power/Energy metering integrated
circuit generates a pulse rate output, the
frequency of which is proportional to the power
consumption. The SA9602H performs the
calculation for active power.
The method of calculation takes the power
factor into account.
Energy consumption can be determined by
the power measurement being integrated over
time.
IIN 1
IIP 2
VREF 3
TEST 4
VDD 5
OSC2 6
OSC1 7
DR-01276
14 GND
13 IVP
12 TP12
11 FMO
10 V SS
9 DIR
8 FOUT
This innovative universal single phase power/
energy metering integrated circuit is ideally
suited for energy calculations in applications
such as residential municipal metering and
factory energy metering and control.
Package: DIP-14
The SA9602H integrated circuit is available in
both 14 and 20 pin dual-in-line plastic (DIP-14/
DIP-20), as well as 20 pin small outline (SOIC-
20) package types.
7149
PDS039-SA9602H-001 REV.D
1/14
27-08-98

1 page

SA9602HSA pdf
SA9602H
FUNCTIONAL DESCRIPTION
The SA9602H is a CMOS mixed signal Analog/Digital integrated circuit, which performs
power/energy calculations across a power range of 1000:1, to an overall accurancy of
better than Class 1.
The integrated circuit includes all the required functions for 1-phase power and energy
measurement such as two 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 SA9602H generates pulses, the frequency of
which is proportional to the power consumption. The pulse rate follows the instataneous
power consumption measured. Direction information is also provided.
A voltage zero crossover signal, relevant to the positive going half cycle, is available on
pin FMO. This signal can be used to sychronise circuit breaker switching.
1. Power Calculation
In the Application Circuit (Figure 1), the voltage drop across the shunt will be between
0 and 16mVRMS (0 to 80A through a shunt resistor of 200µ). This voltage is
converted to a current of between 0 and 16µA , by means of resistors R and R .
RMS
12
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
RMS
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 SA9602H power meter chip at FOUT is 1.16kHz. In this case 1 pulse
will correspond to an energy consumption of 18.4kW/1160Hz = 15.9Ws.
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.
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SA9602HSA arduino
SA9602H
Figure 2: Application Circuit using a Current Transformer for Current Sensing.
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