SA2002EPA Sames, SA2002EPA Datasheet

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SA2002EPA

Manufacturer Part Number
SA2002EPA
Description
Single Phase Uni-directional Power / Energy Metering IC with Instantaneous Pulse Output
Manufacturer
Sames
Datasheet
DESCRIPTION
The SAMES SA2002E is an enhancement of the SA9602E, as
the circuit contains the oscillator on chip.
The SAMES SA2002E single phase uni-directional
power/energy metering integrated circuit generates a pulse
rate output with a frequency proportional to the power
consumption.
The SA2002E performs a 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.
Single Phase Uni-directional Power / Energy
Metering IC with Instantaneous Pulse Output
SA2002E (REV. 5)
SA2002E
FEATURES
Functionally compatible with the SA9602E with reduced
external components
Uni-directional power and energy measurement
Meets the IEC 521/1036 Specification requirements for
Class 1 AC Watt hour meters
Protected against ESD
GND
IVP
IIP
IIN
DR-01586
PROCESSING
ANALOG
SIGNAL
VREF
Figure 1: Block diagram
INTEGRATOR
VOLTAGE
POWER
REF.
OSC
1/10
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.
The SA2002E integrated circuit is available in 8, 14 and 20 pin
dual-in-line plastic (DIP) as well as 16 and 20 pin small outline
(SOIC) package types.
Total power consumption rating below 25mW
Adaptable to different types of current sensors
Operates over a wide temperature range
Precision voltage reference on-chip
Precision oscillator on-chip
FREQUENCY
POWER
TIMING
TO
V
DD
V
SS
FOUT
sames
sames
17-08-00

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SA2002EPA Summary of contents

Page 1

... Meets the IEC 521/1036 Specification requirements for Class 1 AC Watt hour meters Protected against ESD DESCRIPTION The SAMES SA2002E is an enhancement of the SA9602E, as the circuit contains the oscillator on chip. The SAMES SA2002E single phase uni-directional power/energy metering integrated circuit generates a pulse rate output with a frequency proportional to the power consumption ...

Page 2

... R V 1.1 R Symbol Min -150 PIN T -40 STG T -25 O 2/10 3 sames sames Max Unit Condition +85 °C 2.75 V -2. µA Peak value +25 µA +25 Peak value rated input conditions Hz Specified linearity 1600 Hz Min and Max frequency ...

Page 3

... Pulse rate output. Refer to pulse output format for a description 12 FOUT of the pulse rate. Leave pins unconnected. 4 TP1 5 TP2 TP3 6 7 TP4 9 TP5 10 TP6 TP7 11 13 TP8 15 TP9 16 TP10 17 TP11 TP12 18 3/ nominal mains voltage. The RMS at rated conditions. RMS SS sames sames ...

Page 4

... VREF 3 TP1 FOUT 6 TP2 7 TP3 8 DR-01486 Figure 4: Pin connections: Package: SOIC-16 ORDERING INFORMATION Part Number Package SA2002EPA DIP-8 SA2002EPA DIP-14 SA2002EPA DIP-20 SA2002ESA SOIC-16 SA2002ESA SOIC-20 http://www.sames.co.za 8 GND 7 IVP FOUT 5 Figure 3: Pin connections: Package: DIP-14 16 GND 15 IVP 14 ...

Page 5

... VDD VDD Pulse output FOUT VSS SA2002E VSS 5/ IIP CURRENT SENSOR I INPUTS V DD IIN IVP VOLTA GE SENSOR INPUT V GND DR-01148 Figure 7: Internal analog input configuration sames sames . The RMS at nominal RMS I V ...

Page 6

... An integrated anti-creep function does not allow output pulses on FOUT if no power is measured by the device. v MAINS POWER FOUT at RMS . The current into the RMS via resistor R5. 6/ DR-01282 t P Figure 8: FOUT instantaneous pulse output 71µs 71µs min. DR-01151 Figure 9: FOUT pulse width sames sames ...

Page 7

... A 5k trimpot will be used in the voltage channel for meter calibration. The center position on the pot is used in the calculations 2.5k and values for resistors R11 = 22k and R12 =1M is chosen. Substituting the values will result in 23.91k (230V/14. 333k so the resistor values of R1, R2 and R3 are chosen to be 110k 7/10 sames sames ...

Page 8

... SA2002E Figure 10: Application circuit using a shunt resistor for current sensing. http://www.sames.co.za 8/10 sames sames ...

Page 9

... Capacitor, 100uF, 16V, electrolytic C4 Capacitor, 330nF, 250VAC C5 Capacitor, 820nF C6 4N35, Opto Coupler U2 Note 1: Resistor (R6 and R7) values are dependant on the selected shunt resistor (R14) value. Note 2: Capacitor positioned as close as possible to supply pins. http://www.sames.co.za 9/10 sames sames Detail DIP-8 Note 1 Note 1 Note 2 ...

Page 10

... The information contained in this document is confidential and proprietary to South African Micro-Electronic Systems (Pty) Ltd ("SAMES") and may not be copied or disclosed to a third party, in whole or in part, without the express written consent of SAMES. The information contained herein is current as of the date of publication; however, delivery of this document shall not under any circumstances create any implication that the information contained herein is correct as of any time subsequent to such date ...

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