SA2007M

Single Phase Power/Energy Metering IC with Tamper Detection SA2007M FEATURES + Provides direct interface to mechanical counters + Monitors Live and Neutral for tamper detection + Performs bidirectional energy measurement + Various setup modes selectable + Meets the IEC 521/1036 Specification for Class 1 AC Watt hour meters sames + + + + + Total power consumption rating below 30mW Adaptable to different types of sensors Operates over a wide temperature range Precision voltage reference on-chip Precision oscillator on chip DESCRIPTION The SAMES SA2007M is a single-phase bidirectional energy metering integrated circuit. It provides a mono-chip 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. 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 SA2007M drives the calibration LED, the indicator LEDs and the electro-mechanical counter directly. The SA2007M integrated circuit is available in 20 pin dual-inline plastic (DIP-20) and small outline (SOIC-20) package types. VDD VSS IIN1 IIP1 ANALOG SIGNAL PROCESSING AND POWER CALCULATION POWER 1 (DIGITAL) ELT POWER 2 (DIGITAL...