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SA2007PSA 数据表(PDF) 1 Page - Sames |
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SA2007PSA 数据表(HTML) 1 Page - Sames |
1 / 12 page FEATURES + Provides direct interface to mechanical counters + Calibration and setup stored on external EEPROM - no trimpots required + Monitors both Live and Neutral for tamper detection + Flexible programmable features + Meets the IEC 521/1036 Specification for Class 1 AC Watt hour meters sames sames Programmable Single Phase Energy Metering IC with Tamper Detection SA2007P 1/12 SPEC-0074 (REV. 2) 16-01-01 + Total power consumption rating below 50mW + Adaptable to different types of sensors + Operates over a wide temperature range + Precision voltage reference on-chip + Precision oscillator on chip DESCRIPTION The SAMES SA2007P is a single phase bi-directional energy metering integrated circuit. It provides a cost effective solution for energy meters with electro-mechanical displays, such as stepper motors and impulse counters. A precision oscillator, that replaces an external crystal is integrated on chip. Two current sensor inputs allow the measurement of energy consumption on both the live and neutral lines. Direction detection of energy flow as well as other common tamper conditions are flagged. The power consumption on both the live and neutral are continuously measured and the larger of the two is selected for energy metering. The SA2007P drives the calibration LED, the indicator LEDs and the electro-mechanical counter directly. The SA2007P does not require any external trim-pots. All required calibration and configuration data is read from a small external EEPROM. The SA2007P integrated circuit is available in 20 pin dual-in- line plastic (DIP-20) and small outline (SOIC-20) package types. Figure 1: Block diagram IIN1 IIP1 IIP2 IVP ANALOG SIGNAL PROCESSING AND POWER CALCULATION COM- PARATOR POWER TO PULSE RATE IIC BUS INTERFACE VOLTAGE REF. OSC ELT VSS VDD SEL1 DIRO LED MOP MON TEST VREF Dr-01594 TCLK SDA SCL POWER 1 (DIGITAL) POWER 2 (DIGITAL) GND IIN2 RLOAD PRELIMINARY |
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类似说明 - SA2007PSA |
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