Datasheet > SA9904BPA

SA9904BPA

更新时间： 2024-01-02 05:56:35

品牌	Logo	应用领域
其他 - ETC		/
页数	文件大小	规格书
12页	107K
描述
Three Phase Power / Energy IC with SPI Interface

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中文翻译

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技术参数
数据手册

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SA9904BPA 技术参数

生命周期：	Contact Manufacturer	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.6
Base Number Matches：	1

SA9904BPA 数据手册

Three Phase Power / Energy IC with SPI

Interface

SA9904B

sames

FEATURES

Bi-directional active and reactive power/energy

Meets the IEC 61268 Specification requirements for

Class 2 VAR hour meters

measurement

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 on-chip voltage reference

SPI communication bus

Meets the IEC 61036 Specification requirements for Class 1

AC Watt hour meters

DESCRIPTION

The SAMES SA9904B is

The SA9904B includes all the required functions for three-

phase power and energy measurement such as oversampling

A/D converters for the voltage and current sense inputs, power

calculation and energy integration. This innovative universal

three phase power/energy metering integrated circuit is ideally

suited for energy calculations in applications such as electricity

dispensing systems, residential metering and factory energy

metering and control.

a three phase bi-directional

energy/power metering integrated circuit that has been

designed to measure active and reactive energy, RMS mains

voltage and frequency. The SA9904B has an integrated SPI

serial interface for communication with a micro-controller.

Measured values for active and reactive energy, the mains

voltage and frequency for each phase are accessible through

the SPI interface from 24 bit registers. The SA9904B active and

reactive energy registers are capable of holding at least 52

seconds of accumulated energy at full load. A mains voltage

zero crossover is available on the F50 output.

The SA9904B integrated circuit is available in 20 pin dual-in-

line plastic (PDIP20), as well as 20 pin small outline (SOIC20)

package types.

VDD

VSS

ACTIVE

IIP1

IIN2

CURRENT

ADC

IIP2

IIN2

IIP3

IIN3

SCK

REACTIVE

SPI

RMS

VOLTAGE

IVP1

IVP2

VOLTAGE

ADC

IVP3

MAINS

FREQ.

F50

VOLTAGE

GND

REF.

OSC

DR-01641

VREF

OSC1

OSC2

Figure 1: Block diagram

1/12

SPEC-0447 (REV. 6)

04-07-03

12 3 4 5 6 7...12

中文翻译

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