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SA2002D датащи(PDF) 1 Page - Sames |
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SA2002D датащи(HTML) 1 Page - Sames |
1 / 10 page FEATURES + + + + + Provides a single chip solution for energy meters having a mechanical display No external crystal or resonator required Direct stepper motor / impulse counter drive Unidirectional and bi-directional energy measurement Meets the IEC 521/1036 Specification requirements for Class 1 AC Watt hour meters Sames Single Phase Kilowatt-hour Metering IC for Mechanical Display Applications SA2002D 1/10 SPEC-0024 (REV. 4) 18-11-02 + + + + + Configurable for different meter ratings Adaptable to different types of current sensors Precision voltage reference on chip Operates over a wide temperature range Low power consumption DESCRIPTION The SAMES SA2002D provides a single chip solution for single phase energy meters. Very few external components are required and it has direct drive capability for electromechanical counters. The SA2002D does not required an external crystal. A precision oscillator, which is supplies the circuitry with a stable frequency, is integrated on chip. Programmable inputs allow the meter manufacturer to configure the SA2002D for different meter ratings without having to change the stepper motor or impulse counter gear ratio. A high frequency pulse output is available at the LED output for meter calibration purposes. The SA2002D includes an anti-creep feature. The SA2002D can be configured for positive, negative or bi- directional energy measurement. The SA2002D Single Phase kWh metering integrated circuit generates a pulse rate output, the frequency of which is proportional to the power consumption. The SA2002D performs the calculation for active power. The method of calculation takes the power factor into account. The SA2002D integrated circuit is available in 20 pin dual-in- line plastic (PDIP20), as well as 20 pin small outline (SOIC20) package types. Figure 1: Block diagram ANALOG SIGNAL PRO- CESSING LED- PULSE POWER INTE- GRATOR COUNTER DRIVER REFERENCE & BIAS OSC TIMING LED VDD DIRI FAST DIRO MOP IIP IVP MON IIN AGND R0 R1 R2 VREF Dr-01566 VSS CNF |
Аналогичный номер детали - SA2002D |
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Аналогичное описание - SA2002D |
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