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SA9109B Datasheet(PDF) 1 Page - Sames |
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SA9109B Datasheet(HTML) 1 Page - Sames |
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1 / 18 page  sames SA9109B FEATURES n Performs bidirectional energy meter- ing and directly drives a LCD with 7 digits display plus announciators n Programable method of energy addi- tion n Pin compatible with SAMES SA9109A n 4 externally selectable on-chip tariff registers n An additional total energy register n Meets the IEC 521/1036 Specification requirements for Class 1 AC Watt hour meters 1/16 4482 PDS039-SA9109B-001 REV. B 13-06-1997 Package: PLCC-44 MONOCHIP SINGLE PHASE BIDIRECTIONAL KILOWATT HOUR METERING IC DESCRIPTION The SAMES SA9109B Single Phase bidi- rectional energy metering integrated cir- cuit has an integrated Liquid Crystal Dis- play (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 available. One method results in energy values which take the direction of energy flow into account, a summation of signed integers. The alternative method meas- ures energy regardless of the direction of energy flow, a summation of absolute values. The required measurement method may be selected when writing to the RAM of the device. PIN CONNECTIONS n Optical interface for electronic reading according to IEC1107 Mode D n Pulse output for calibration n Power consumption rating below 40mW n Adaptable to different types of current sensors n Operates over a wide temperature range n Precision voltage reference on-chip n Protected against ESD 12 34 3 VSS DR-01252 CIP CIN COP 8 7 4 6 5 10 911 PDTA PGM SR[0] SR[1] PB VBA PCLK 38 41 42 43 44 1 2 40 39 37 35 36 21 R[3] 16 15 14 13 17 18 19 20 R[2] R[1] R[0] 30 31 32 33 27 22 24 25 26 23 28 29 S[4] S[3] S[2] S[1] COFF S[0] S[5] |
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