STPM10 datasheet(10/47 Pages) STMICROELECTRONICS

10 / 47 page

Electrical characteristics

STPM10

10/47

DocID17728 Rev 5

Electrical characteristics

VCC = 5 V, TA

= 25 °C, 100 nF to 1 μF between VDDA and VSS, 100 nF to 1 μF between VDDD

and VSS

, 100 nF to 1 μF between VCC and VSS unless otherwise specified.

Table 5: Absolute maximum ratings

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

Energy measurement accuracy

fBW

Effective

bandwidth

Limited by digital

filtering (-3 dB)

800

eAW

Accuracy of

active power

Over 1 to 1000 of

dynamic range

0.1

eRW

Accuracy of

reactive power

Over 1 to 1000 of

dynamic range

0.1

eSW

Accuracy of

apparent power

Over 1 to 500 of

dynamic range

0.1

SNR

Signal-to-noise

ratio

Over the entire

bandwidth

PSRRDC

Power supply

DC rejection

Voltage signal:

200 mVrms/50 Hz

Current signal: 10

mVrms/50 Hz

fCLK= 4.194 MHz

VCC=3.3 V ±10%,

5 V±10%

0.2

PSRRAC

Power supply

AC rejection

Voltage signal:

200 mVrms/50 Hz

Current signal: 10

mVrms/50 Hz

fCLK= 4.194 MHz

VCC = 3.3 V+0.2

Vrms1@100 Hz

VCC = 5.0 V+0.2

Vrms1@100 Hz

0.1

General section

VCC

Operating

supply voltage

3.165

5.5

ICC

Supply current

Configuration

registers cleared

4 MHz, VCC = 5 V

8 MHz, VCC = 5 V

POR

Power-on-reset

on VCC

2.5

VDDA

Analog supply

voltage

2.85

3.00

3.15

VDDD

Digital supply

voltage

1.725

1.80

1.875

fCLK

Oscillator clock

frequency

MDIV bit = 0

4.000

4.194

MHz

MDIV bit = 1

8.000

8.192

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