SA4101A South African Micro-Electronic Systems, SA4101A Datasheet

SA4101A

Manufacturer Part Number

SA4101A

Description

Single Phase KWH Metering ic With Pulse Output

Manufacturer

South African Micro-Electronic Systems

Datasheet

1.SA4101A.pdf (16 pages)

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Company:

Bonase Electronics (HK) Co., Limited

Part Number:

SA4101ASA

Quantity:

1 556

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Meier Automation Equipment Co., Limited

Part Number:

SA4101ASA

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Bonase Electronics (HK) Co., Limited

Part Number:

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Meier Automation Equipment Co., Limited

Part Number:

SA4101ASAR

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SAMES

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Download datasheet (584Kb)

Single Phase Kilowatt-hour Metering IC

FEATURES

* Patents EP0559499, US5396447, PT559499T, ZA9301579, ZA9400273, ZA9702075

SPEC-1081 (REV. 1)

DESCRIPTION

The SAMES SA4101A* is an accurate single phase

power/energy metering integrated circuit providing a single-

chip solution for energy meters. Very few external components

are required and has direct drive capability for electro

mechanical counters. The SA4101A does not require an

external crystal. A precision oscillator, which supplies the

circuitry with a stable frequency, is integrated on chip. The

SA4101A metering integrated circuit generates a pulse rate

output, the frequency of which is proportional to the power

consumption. The SA4101A performs the calculation for

active power. The method of calculation takes the power factor

into account.

Programmable inputs allow the meter manufacturer to

configure the SA4101A for different meter maximum currents

SA4101A

Meets the IEC 61036 Specification requirements for Class

1 AC static watt-hour meters for active energy

Less than 0.5% Error over a dynamic range of 1:1000

The motor drive outputs (MOP, MON) provide the average

power information and can drive an electro-mechanical

counter directly

LED pulse output for calibration purposes

AGND

IVP

IIN

IIP

VOLTAGE REFERENCE

CURRENT BIASING

VREF

ADC

AND

ADC

POWER ON

RESET

VDD

OUTPUT

DIGITAL

VSS

Figure 1: Block diagram

Instantaneous

power

PROCESSING BLOCK

OSCILLATOR

TIMING

AND

1/16

SIGNAL

INTEGRATION

CNF

DIRI

the stepper motor or impulse counter gear ratio. The LED pulse

output follows the average power consumption measured and

is intended for meter calibration purposes. In fast calibration

mode this output provides a high frequency pulse rate following

the instantaneous power consumption and can be used for fast

calibration or to interface with a microcontroller. The SA4101A

includes an anti-creep feature preventing any creep effects in

the meter. The SA4101A can be configured for positive,

negative or bi-directional energy measurement.

The SA4101A integrated circuit is pin compatible to the

SA2102D and is available in 20 pin dual-in-line plastic

(PDIP20), as well as 20 pin small outline (SOIC20) package

types.

MAX

) and nominal voltages (V

Bi-directional and uni-directional energy measurement

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 (0.02% of Imax)

Low power consumption (<25mW typical)

DIRO

Average

Power

COUNTER DRIVER

MON

CALIBRATION

LED OUTPUT

DIVISION

BUFFERS

DRIVING

FAST

MOTOR

FOR

MOP

NOM

) without having to change

sames

http://www.sames.co.za

LED

11-03-03

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