SA2007P

Programmable Single Phase Energy Metering IC with Tamper Detection SA2007P 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 + + + + + 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 availa...