STPM14ATR datasheet(11/45 Pages) STMICROELECTRONICS

Il numero della parte	STPM14ATR

Spiegazioni elettronici	Single phase energy metering IC with pulsed output and digital calibration

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Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

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11 / 45 page

STPM11/12/13/14

Electrical characteristics

11/45

II

Input current on CLKIN

±1

µA

RP

External resistor

1

4

M

Ω

CP

External capacitors

22

pF

fCLK

Nominal output frequency

4

4.194

MHz

8

8.192

RC Oscillator (STPM11/13)

ICLKIN

Settling current

fCLK= 4 MHz

40

60

µA

RSET

Settling resistor

12

k

Ω

tJIT

Frequency jitter

1

ns

On chip reference voltage

VREF

Reference voltage

1.23

V

Reference accuracy

±1

%

TC

Temperature coefficient

After calibration

30

50

ppm/°C

Configuration interface timing

FSCLKw Data write speed

100

KHz

tDS

Data setup time

20

ns

tDH

Data hold time

0

ns

tSYN

SYN-NP active width

2/fCLK

s

Table 4.

Electrical characteristics

(VCC = 5 V, TA= 25°C, 2.2 µF between VDDA and VSS, 2.2 µF between VDDD and VSS, 2.2 µF

between VCC and VSS unless otherwise specified)

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

Table 5.

Typical external components

Function

Component

Parameter

Value

Tolerance

Unit

Line voltage

interface

Resistor divider

R to R ratio VRMS = 230 V

1650

±1%

V/V

R to R ratio VRMS = 110 V

830

±1%

Line current

interface

Current shunt

Current to voltage conversion ratio

0.2

±5%

mV/A

Current transformer

30

±12%

Rogowsky coil

3

±12%

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