DESCRIPTION

The SAMES SA9105E

Three Phase

unidirectional Power/Energy metering

integrated circuit generates a pulse rate

output, the frequency of which is proportional

to the power consumption. The SA9105E

performs the calculation for active power.

The method of calculation takes the power

factor into account.

Energy consumption is determined by the

power measurement being integrated over

time.

The output of this innovative universal three

phase power/energy metering integrated

circuit, is ideally suited for applications such

as residential and industrial energy metering

and control.

The SA9105E integrated circuit is available

in 40 pin dual-in-line plastic (DIP-40), as

well as in 44 pin plastic leaded chip carrier

(PLCC-44) package types.

SA9105E

THREE PHASE UNIDIRECTIONAL POWER/ENERGY

METERING IC WITH INSTANTANEOUS PULSE OUTPUT

Package: DIP-40

1/12

PIN CONNECTIONS

4262

PDS039-SA9105E-001

Rev. B

15-09-1995

sames

sames

sames

sames

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FEATURES

n

Performs unidirectional 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

Operates over a wide temperature

range

n

Uses current transformers for current

sensing

n

Excellent long term stability

n

Easily adaptable to different signal

levels

n

Precision voltage reference on-chip

n

Three pulse rate options available

n

Protected against ESD

DR-00838

IIP3

11

COPP

CONP

OSC2

OSC1

TP18

TP17

SS

CIPP

CINP

V

16

17

18

20

19

12

13

14

15

CIN1

1

CIP2

CIN2

CIN3

CIP3

IIN3

IIN1

IIP1

IIN2

IIP2

6

8

7

9

10

2

4

5

3

CON3

TP25

TP24

FOUT3

FOUT2

FOUT1

25

21

22

23

24

V

TP27

TP26

DD

VREF

30

29

28

27

26

CIP1

40

GND

35

IVP1

IVP2

COP3

IVP3

31

33

34

32

COP1

CON1

CON2

COP2

39

38

37

36