Datasheet > SA9109B

SA9109B

更新时间： 2024-09-23 22:43:35

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SAMES		/
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描述
MONOCHIP SINGLE PHASE BIDIRECTIONAL KILOWATT HOUR METERING IC

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SA9109B 数据手册

sames

SA9109B

MONOCHIP SINGLE PHASE BIDIRECTIONAL

KILOWATT HOUR METERING IC

FEATURES

Optical interface for electronic reading

according to IEC1107 Mode D

Performs bidirectional energy meter-

ing and directly drives a LCD with 7

digits display plus announciators

Pulse output for calibration

Programable method of energy addi-

tion

Powerconsumptionratingbelow40mW

Adaptable to different types of current

sensors

Pin compatible with SAMES SA9109A

4 externally selectable on-chip tariff

registers

Operates over a wide temperature

range

An additional total energy register

Precision voltage reference on-chip

Protected against ESD

Meets the IEC 521/1036 Specification

requirements for Class 1 AC Watt hour

meters

PIN CONNECTIONS

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)

displayaswellas4multipletariffregisters.

The SA9109B performs the active power

calculation.

30 29

PCLK

PDTA

PGM

S[5]

The method of calculation takes the power

factor into account.

S[4]

S[3]

S[2]

S[1]

S[0]

COFF

R[3]

R[2]

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.

SR[0]

SR[1]

VBA

CIP

CIN

COP

R[1]

R[0]

13 14

DR-01252

Package: PLCC-44

1/16

4482

PDS039-SA9109B-001

REV. B

13-06-1997

12 3 4 5 6 7...18

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