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SA2005P датащи(PDF) 1 Page - Sames |
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SA2005P датащи(HTML) 1 Page - Sames |
1 / 16 page FEATURES + Direct drive for electro-mechanical counters or stepper motors + Calibration and setup stored on external EEPROM - no trim-pots required + Flexible programmable features providing ease of implementation for meter manufacturers + Per phase energy direction and voltage fail indication + Precision oscillator on chip sames sames Programmable Three Phase Power / Energy Metering IC for Stepper Motor / Impulse Counter Applications SA2005P 1/16 SPEC-0086 (REV. 2) 07-02-01 + Meets the IEC 521/1036 Specification requirements for Class 1 AC Watt hour meters + Operates over a wide temperature range + Easily adaptable to different signal levels + Adaptable to different types of sensors + Precision voltage reference on-chip + Protected against ESD DESCRIPTION The SAMES SA2005P provides a single chip active energy metering solution for three phase mechanical counter-based meter designs. Th SA2005P does not require any external trim-pots or resistor ladders for meter calibration. Calibration and meter configuration information is stored on a small external EEPROM. Meter setup stored on the EEPROM includes various metering direction modes (total sum, absolute sum, positive or negative energy) phase calibration data, rated metering conditions, LED pulse rate, counter pulse width, counter resolution and creep current. A programmable rate pulse output is available for meter calibration purposes. Per phase voltage fail and voltage sequence faults as well as energy direction indication are available as LED outputs. Programmable dividers enable various mechanical counter or stepper motor counter resolutions. A precision oscillator, that replaces an external crystal, is integrated on chip. A voltage reference is integrated on chip. The SA2005P integrated circuit is available in 24-pin dual in line plastic (DIP-24) and small outline (SOIC-24) package options. Figure 1: Block diagram REF OSC TIMING & CONTROL PH / DIR TEST LED VDD VSS IVN1 X IIN1 IIP1 VREF GND IVN2 X I2 V2 IIN2 IIP2 IVN3 X I3 V3 IIN3 IIP3 INTERFACE SCL SDA MON MOP RLOAD PH2 PH1 PH3 PROG. ADDER POWER TO PULSE RATE PROGRAM- MABLE ADDER I1 V1 CHANNEL BALANCE CHANNEL BALANCE CHANNEL BALANCE dr-01605 |
Аналогичный номер детали - SA2005P |
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Аналогичное описание - SA2005P |
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