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

Número de pieza

componentes Descripción

Fabricante

SA9109B

MONOCHIP SINGLE PHASE BIDIRECTIONAL KILOWATT HOUR METERING IC

South African Micro Electronic Systems 

SA9109B

ABSOLUTE MAXIMUM RATINGS*

Parameter

Symbol

Supply Voltage

Current on any pin

Storage Temperature

Operating Temperature

VDD -VSS

I

PIN

TSTG

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 perma-

nent 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

Operating temperature

range #

To

-25

+85 °C

Supply Voltage: Positive VDD 2.25

2.75 V

Supply Voltage: Negative VSS -2.75

-2.25 V

Supply Current: Positive

IDD

7

10 mA

Supply Current: Negative I

SS

7

10 mA

Current Sensor Inputs (Differential)

Input Current Range

III

-25

Voltage Sensor Inputs (Asymmetric)

+25 µA

Input current Range

LCD backplane Voltage

LCD segment Voltage

Pin SDO

Pulse rate

Pulse width

Output Low Voltage

Output High Voltage

Oscillator

IIV

-25

+25 µA

VB

VDD &

V

V R[0] ... R3]

SS

VS

1/3VDD

2/3VDD

V S[0] ...S[15]

fP

3.5

Hz Default1

35 Hz Programmed1

tp

4.3

VOL

V

V -1

OH

DD

5.9 mS

VSS+1 V IOL = 5mA

V I = -2mA

OH

Recommended crystal:

TV colour burst crystal f = 3.5795 MHz

sames

3/18

Share Link: