Datasheet > SA9904A

SA9904A

更新时间： 2024-09-24 03:33:43

品牌	Logo	应用领域
SAMES		/
页数	文件大小	规格书
12页	161K
描述
Three 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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SA9904A 数据手册

Three Phase Power / Energy IC

with SPI Interface

SA9904A

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

Individual Phase information

Protected against ESD

Total power consumption rating below 60mW

Uses current transformers for current sensing

Operates over a wide temperature range

Precision voltage reference on-chip

SPI communication bus

Meets the IEC 521/1036 Specification requirements for

Class 1 AC Watt hour meters

DESCRIPTION

The SAMES SA9904A is a three phase bi-directional

energy/power metering integrated circuit that performs

measurement of active and reactive power, mains voltage and

mains frequency.

This innovative universal three 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 SA9904A is pin compatible to the SA9604A. New features

include, RMS mains voltage and accurate reactive power

measurements.

The SA9904A 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 for each phase are accessible through a

SPI bus from 24 bit registers.

VDD

VSS

ACTIVE

IIP1

IIN2

CURRENT

ADC

IIP2

IIN2

SCK

REACTIVE

IIP3

IIN3

SPI

RMS

IVP1

IVP2

VOLTAGE

IVP3

ADC

MAINS

FREQ.

F150

VOLTAGE

GND

OSC

REF.

Dr-01598

VREF

OSC1

OSC2

Figure 1: Block diagram

1/12

SPEC-0076 (REV. 5)

05-09-01

12 3 4 5 6 7...12

中文翻译

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