SA9109B - Sames

SA9109B MONOCHIP SINGLE PHASE BIDIRECTIONAL KILOWATT HOUR METERING IC

The SAMES SA9109B Single Phase bidirectional energy metering integrated circuit has an integrated Liquid Crystal Display (LCD) driver for a 7 digit (7 segment) display as well as 4 multiple tariff registers. The SA9109B performs the active power calculation. The method of calculation takes the power factor into account. Two methods of energy measurement are .

Features

n Performs bidirectional energy metering and directly drives a LCD with 7 digits display plus announciators n Programable method of energy addition n Pin compatible with SAMES SA9109A n 4 externally selectable on-chip tariff registers n An additional total energy register n Optical interface for electronic reading according to IEC1107 Mode D Pulse output for calibration Power consumption rating below 40mW Adaptable to different types of current sensors Operates over a wide temperature range Precision voltage reference on-chip Protected against ESD n n n n n n Meets the IEC 521/1036 Specif.