SA9605A

sames SA9605A THREE PHASE POWER/ENERGY METERING IC WITH INSTANTANEOUS PULSE OUTPUT n FEATURES n Functionally similar to the SA9105E and SA9105F, with reduced number of external components n Output frequency represents the absolute sum of energy on all three phases n Performs one, two or three phase power and energy measurement n Meets the IEC 521/1036 Specification requirements for Class 1 AC Watt hour meters n n n n n n Operates over a wide temperature range Current transformers for sensing Excellent long term stability Easily adaptable to different signal levels Precision voltage reference on-chip Pin selectable pulse rates Supports tamper detection PIN CONNECTIONS DESCRIPTION The SAMES SA9605A is an enhancement of the SA9105E and SA9105F, as no external capacitors are needed for the A/D converters. The SAMES SA9605A Three Phase Power/ Energy metering integrated circuit generates a pulse rate output, the frequency of which 1 20 IIP2 is proportional to the absolute power con2 19 IIN2 sumption. The SA9605A performs the 18 3 IVN3 calculation for active power. 17 4 IIP3 The method of calculation takes the power 16 5 IIN3 factor into account. VDD 6 15 Energy consumption is determined by the 14 FOUT1 7 power measurement being integrated over 13 8 time. FOUT2 12 9 DIR The output of this innovative universal three phase power/energy metering integrated 11 10 OSC1 circuit, is ideally suited for applications such DR-01109 as residential and industrial energy metering and contro...