Datasheet > SA4301ASAR

SA4301ASAR

更新时间： 2025-03-21 01:16:55

品牌	Logo	应用领域
SAMES		/
页数	文件大小	规格书
23页	636K
描述
Polyphase Energy Metering IC with Pulse Outputs

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中文翻译

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数据手册

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SA4301ASAR 数据手册

Polyphase Energy Metering IC with Pulse Outputs

and Anti-Tamper Features

SA4301A

FEATURES



Per phase energy direction indication

Per phase missing phase indication

Phase sequence error indication

Precision on-chip oscillator (70ppm/°C drift)

Precision on-chip voltage reference (10ppm/°C drift)

On-chip anti-creep function (0.005% of E_MAX

Low power consumption (<40mW typical)

Measures AC inputs only



Meets the IEC62053, CBIP-88 and IS137799-1999

specification requirements for Class 1 AC static watt-

hour meters for active energy



Motor drive outputs (MOP, MON) provide average active

power information and can drive an electro-mechanical

counter or an impulse counter directly

)



LED pulse output for calibration purposes supplies

average active power information

Configurable for different meter ratings

DESCRIPTION

The SA4301A is an accurate polyphase power/energy

metering integrated circuit providing a single chip solution for

three phase energy meters. Very few external components

are required and the chip includes a direct drive capability for

electro-mechanical counters. The SA4301A does not require

an external crystal or voltage reference. A precision oscillator

and a precision voltage reference to supply the circuitry with

a stable frequency and stable reference currents are

integrated on the chip.

currents (I_MAX) and nominal voltages (V_NOM) without having to

change the stepper motor counter or impulse counter gear

ratio. The LED pulse output follows the average active power

consumption measured and is intended for meter calibration

purposes. In fast calibration mode this output provides a high

frequency pulse rate following the average active power

consumption and can be used for fast calibration or to

interface with a microcontroller.

The SA4301A includes an anti-creep feature preventing any

creep effects in the meter under no-load conditions.

The SA4301A metering integrated circuit generates a pulse

output, the frequency of which is proportional to the active

power consumption.

The SA4301A integrated circuit is available in a 24 pin small

outline (SOIC24) RoHS compliant package.

Programmable inputs allow the meter manufacturer to

configure the SA4301A for different meter maximum

VDD

IIP1

IIN1

DIGITAL

OUTPUT

CURRENT

CHANNEL 1

ADC

POWER ON

RESET

SIGNAL PROCESSING

Instantaneous

PROGRAMMABLE

ADDER

Average

power

ANTI-CREEP

THRESHOLD

ABS

|X|

LPF

PH/DIR

IVP1

DIGITAL

OUTPUT

VOLTAGE

CHANNEL 1

ADC

TAMPER

OUTPUT

PH1

PH2

PH3

CONDITION

AND

MAINS FAIL

DETECTION DIRECTION

ENERGY

MULTIPLEXER

AND

DRIVER

STATUS SIGNAL

DETERMINATION

IIP2

IIN2

DIGITAL

OUTPUT

CURRENT

CHANNEL 2

ADC

Instantaneous

power

Average

power

ANTI-CREEP

THRESHOLD

ABS

|X|

PULSE

GENERATION

DIVISION

FOR

CALIBRATION

LED OUTPUT

LPF

LED

IVP2

DIGITAL

OUTPUT

VOLTAGE

CHANNEL 2

ADC

MAINS FAIL

DETECTION DIRECTION

ENERGY

IIP3

IIN3

DIGITAL

OUTPUT

CURRENT

CHANNEL 3

ADC

MODE

Instantaneous

power

Average

power

CHANNEL

ANTI-CREEP

THRESHOLD

ABS

|X|

PIN STATE

DETECTION

LPF

IVP3

DIGITAL

OUTPUT

VOLTAGE

CHANNEL 3

ADC

MAINS FAIL

DETECTION DIRECTION

ENERGY

AGND

FMS

DIVISION

FOR

COUNTER OUTPUT

VOLTAGE REFERENCE

AND

OSCILLATOR

AND

CURRENT BIASING

TIMING

COUNTER

DRIVE

BUFFERS

VREF

MON

MOP

VSS

Figure 1: Block diagram

SPEC-1538 (REV. 7)

29-09-2017

1/23

12 3 4 5 6 7...23

中文翻译

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