SA9109B Ver la hoja de datos (PDF) - South African Micro Electronic Systems

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SA9109B

MONOCHIP SINGLE PHASE BIDIRECTIONAL KILOWATT HOUR METERING IC

South African Micro Electronic Systems 

SA9109B

ELECTRICAL CHARACTERISTICS (continued)

Parameter

Symbol Min Typ

Pin VREF

Ref. Current

Ref. Voltage

Pins PB, SR[0], SR[1],

-IR

45 50

VR

1.1

PGM

Input Voltage High

Input Voltage Low

Pullup Current

Pin PCLK

Input Voltage High

Input Voltage Low

Input Current High/

Low

Pin VBA

VIH

4

V

IL

30

VIH

VIL

IMAX

VMIN

4

±30

1.1

Max Unit Condition

With

R

7

=

24kΩ

55 µA connected to VSS

1.3 V Referred to VSS

V

1

V

µA VIN = VSS

V

1

V

µA V =V ..V

IN SS DD

50 nA Power down

5.5 V mode

# Extended Operating Temperature Range available on request

Note 1: At rated conditions

PIN DESCRIPTION

Pin Designation

11

GND

17

VDD

3

V

SS

2

VBA

8

IVN

10

IIN

9

IIP

38

OSC1

37

OSC2

18

R[0]

19

R[1]

20

R[2]

21

R[3]

Type

Supply

Supply

Supply

Supply

Analog in

Analog in

Analog in

Input

Output

Output

Output

Output

Output

Description

Ground

Positive Supply Voltage sense

Negative Supply Voltage sense

Battery back-up. Negative Supply Voltage

Analog input for Voltage

Analog input for Current

Connections for crystal or ceramic resonator

(OSC1 = Input; OSC2 = Output)

Liquid crystal display (LCD) backplane drivers

4/18

sames

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