Datasheet > SA4104BSAR

SA4104BSAR

更新时间： 2025-03-15 01:13:07

品牌	Logo	应用领域
SAMES		/
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描述
Single Channel Single Phase Energy

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SA4104BSAR 数据手册

Single Channel Single Phase Energy

Metering IC

SA4104A / SA4104B

FEATURES



Configurable for different meter ratings

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

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

On-chip anti-creep function (0.01% of F_MAXon SA4104A

or 0.004% of F_MAXon SA4104B)



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



Low power consumption (<20mW typical)

Measures AC inputs only

LED pulse output for calibration purposes supplies

average active power information

DESCRIPTION

The SA4104A/B is an accurate single phase power/energy

metering integrated circuit providing a single chip solution for

single phase energy meters. Very few external components

are required and the chip includes a direct drive capability for

electro-mechanical counters. The SA4104A/B 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.

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 SA4104A/B includes an anti-creep feature preventing

any creep effects in the meter under no-load conditions. Two

versions of the device are available, namely the SA4104A

and SA4104B. The only difference between the two versions

is the anti-creep threshold. The anti-creep threshold is set to

0.01% of F_MAXon the SA4104A and 0.004% of F_MAXon the

SA4104B.

The SA4104A/B metering integrated circuit generates a pulse

output, the frequency of which is proportional to the active

power consumption.

Programmable inputs allow the meter manufacturer to

configure the SA4104A/B for different meter maximum

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

change the stepper motor counter or impulse counter gear

ratio.

The SA4104A/B integrated circuit is available in a 16 pin

small outline (SOIC16) RoHS compliant package.

VDD

DIRO

FMS

POWER ON

RESET

PIN STATE

DETECTION

DIGITAL

OUTPUT

IIP

SIGNAL PROCESSING

CURRENT

CHANNEL

ADC

IIN

Instantaneous

power

Average

power

LED

PULSE

GENERATION

DIVISION

FOR

LPF

CALIBRATION

LED OUTPUT

DIGITAL

OUTPUT

IVP

VOLTAGE

CHANNEL

ADC

AGND

VOLTAGE REFERENCE

AND

CURRENT BIASING

OSCILLATOR

AND

TIMING

DIVISION

FOR

COUNTER OUTPUT

COUNTER

DRIVE

BUFFERS

VREF

VSS

MON

MOP

Figure 1: Block diagram

SPEC-1654 (REV. 4)

29-09-2017

1/18

12 3 4 5 6 7...18

中文翻译

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