Datasheet > SA9903

SA9903

更新时间： 2025-04-24 22:26:55

品牌	Logo	应用领域
SAMES		/
页数	文件大小	规格书
12页	123K
描述
Single Phase Power / Energy IC with SPI Interface

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中文翻译

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数据手册

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SA9903 数据手册

Single Phase Power / Energy IC

with SPI Interface

SA9903B

ssames

+ FEATURES

Bi-directional active and reactive power/energy

measurement

Meets the IEC 1268 Specification requirements for VAR

hour meters

RMS Voltage and frequency measurement

SPI communication bus

Protected against ESD

Total power consumption rating below 25mW

Adaptable to different current sensor technologies

Operates over a wide temperature range

Precision voltage reference on-chip

Meets the IEC 521/1036 Specification requirements for

Class 1 AC Watt hour meters

DESCRIPTION

The SAMES SA9903B is a single phase bi-directional

energy/power metering integrated circuit that performs

measurement of active and reactive power, mains voltage and

mains frequency.

This innovative universal single phase power/energy metering

integrated circuit is ideally suited for energy calculations in

applications such as electricity dispensing systems (ED's),

residential municipal metering and factory energy metering

and control.

The SA9903B is pin compatible to the SA9603B. New features

include, RMS mains voltage and accurate reactive power

measurements.

TheSA9903B integrated circuit is available in both 20 pin dual-

in-line plastic (DIP-20), as well as 20 pin small outline (SOIC-

20) package types.

Measured values for active and reactive energy, the mains

voltage and frequency are accessible through a SPI bus from

24 bit registers.

TEST

VDD

VSS

ACTIVE

IIP

IIN

CURRENT

ADC

SCK

REACTIVE

SPI

RMS

VOLTAGE

IVP

VOLTAGE

ADC

MAINS.

FREQ.

FMO

VOLTAGE

REF.

GND

OSC

Dr-01583

VREF

OSC1

OSC2

Figure 1: Block diagram

1/12

SPEC-0051 (REV. 2)

26-02-01

12 3 4 5 6 7...12

中文翻译

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与SA9903相关器件

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SA9903B	SAMES	获取价格	Single Phase Power / Energy IC with SPI Interface
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SA9904BSA	ETC	获取价格	Three Phase Power / Energy IC with SPI Interface
SA9904BSAR	SAMES	获取价格	Three Phase Multifunction Energy Metering IC