FEATURES
n SA9105A THREE PHASE UNIDIRECTIONAL POWER/ENERGY METERING IC WITH PULSE OUTPUT n n Performs unidirectional one, two or three phase power and energy measurement Meets the IEC 521/1036 Specification requirements for Class 1 AC Watt hour meters Operates over a wide temperature Range Uses current transformers for current sensing Excellent long term stability Easily adaptable to different signal levels Precision voltage reference on-chip Three pulse rate outputs available Protected against ESD n n n n n n PIN CONNECTIONS DESCRIPTION
The SAMES SA9105A Three Phase unidirectional Power/Energy metering 40 CIN1 1 CIP2 2 integrated circuit generates a pulse rate 39 38 CIN2 3 output, the frequency of which is proportional CIP3 4 37 to the power consumption. 6 35 IIN1 The method of calculation takes the power IIP1 7 34 factor into account. 8 33 IIN2 Energy consumption is determined by the 32 9 IIP2 31 IIN3 10 power measurement being integrated over IIP3 11 30 time. 29 COPP 12 The output o...
