SA9903BPA データシートの表示（PDF） - South African Micro Electronic Systems

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SA9903BPA

Single phase power/energy metering IC with SPI interface

South African Micro Electronic Systems 

SA9903B

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

Operating temp. Range

TO

Supply Voltage: Positive

VDD

Supply Voltage: Negative

VSS

Supply Current: Positive

IDD

Supply Current: Negative

ISS

Current Sensor Inputs (Differential)

-25

2.25

-2.75

+85

°C

2.75

V

-2.25

V

3.56

5.1

mA

3.56

5.1

mA

Input Current Range

III

-25

Voltage Sensor Input (Asymmetrical)

+25

µA

Input Current Range

IIV

-25

+25

µA

Oscillator

Pin VREF

Ref. Current

Ref. Voltage

Digital I/O

Recommended crystal: TV colour burst crystal f = 3.5795 MHz

-IR

45

50

55

µA

VR

1.1

1.3

V

Pins SCK

High Voltage

Low Voltage

VIH

VDD-1

VIL

V

VSS+1

V

Pins CS, DI

High Voltage

Low Voltage

Pins FMO, DO

Low Voltage

High Voltage

fSCK

tLO

0.6

tHI

0.6

VIH

VDD-1

VIL

VOL

VOH

VDD-1

800

kHz

µs

µs

V

VSS+1

V

VSS+1

V

V

sames

Condition

Peak value

Peak value

With R = 24kW

connected to VSS

Reference to VSS

IOL = 5mA

IOH = -2mA

ABSOLUTE MAXIMUM RATINGS*

Parameter

Symbol

Min

Max

Unit

Supply Voltage

VDD -VSS

-0.3

6.0

V

Current on any pin

IPIN

-150

+150

mA

Storage Temperature

TSTG

-40

+125

°C

Operating Temperature

TO

-40

+85

°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.

http://www.sames.co.za

23/12

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