SA9122E Ver la hoja de datos (PDF) - South African Micro Electronic Systems

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SA9122E

SINGLE PHASE UNIDIRECTIONAL POWER/ENERGY METERING IC WITH SEPERATE 64 SEGMENT LCD DRIVER

South African Micro Electronic Systems 

SA9122E

ABSOLUTE MAXIMUM RATINGS*

Parameter

Supply Voltage

Current on any pin

Storage Temperature

Operating Temperature

Symbol

VDD -VSS

IPIN

T

STG

TO

Min

-0.3

-150

-40

-40

Max

6.0

+150

+125

+85

Unit

V

mA

°C

°C

* Stresses above those listed under “Absolute Maximum Ratings” may cause permanent

damage to the device. This is a stress rating only. Functional operation of the device

at these or any other condition above those indicated in the operational sections of this

specification, is not implied. Exposure to Absolute Maximum Ratings for extended

periods may affect device reliability.

ELECTRICAL CHARACTERISTICS

(VDD = 2.5V, VSS = -2.5V, over the temperature range -10°C to +70°C#, unless otherwise

specified.)

Parameter

Symbol Min Typ Max Unit Condition

Supply Voltage: Positive VDD 2.25

2.75 V

Supply Voltage: Negative VSS -2.75

-2.25 V

Supply Current: Positive

I

DD

5

7 mA

Supply Current: Negative I

SS

5

7 mA

Current Sensor Inputs (Differential)

Input Current Range

III

-25

Voltage Sensor Input (Asymmetrical)

+25 µA Peak value

Input Current Range

I

-25

IV

Pins FOUT1, FOUT2

Output Low Voltage VOL

Output High Voltage V V -1

OH

DD

Pulse Rate FOUT1

fP

10

0.5

+25 µA Peak value

VSS+1 V IOL = 5mA

V I = -2mA

OH

1160 Hz Specified linearity

3000 Hz Min and max limits

FOUT21

fP2

fP/290

sames

3/12

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