STPMC1

更新时间： 2024-11-29 12:23:07

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		/
页数	文件大小	规格书
77页	2735K
描述
Programmable poly-phase energy calculator IC

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STPMC1 数据手册

STPMC1

Programmable poly-phase energy calculator IC

Datasheet − production data

Features

■ Supports 1-, 2- or 3-phase WYE and Delta

services, from 2 to 4 wires

■ Computes cumulative active and reactive wide-

band and fundamental harmonic energies

■ Computes active and reactive energies, RMS

and momentary voltage and current values for

each phase

TSSOP20

■ Supports Rogowski coil, current transformer,

Shunt or Hall current sensors

■ Exclusive ripple-free energy calculation

meter. It can be coupled with a microprocessor for

multi-function energy meters, or it can directly

drive a stepper motor for a simple active energy

meter. The calculator has five input data pins. The

first three receive the voltage and current

algorithm

■ Programmable pulsed output

■ Stepper motor outputs

■ Neutral current, temperature, and magnetic

information of the phases. In fact, each data input

processes two ΔΣ signals, multiplexed in time and

generated by the STPMSx device. The fourth

input receives multiplexed ΔΣ signals also, and

can be used to sense the neutral current or

another signal - temperature, for example. The

fifth input data pin accepts non-multiplexed ΔΣ

signals and it can be used for sensing the

magnetic field information from a Hall sensor.

Four internal hard-wired DSP (digital signal

processing) units perform all the computations on

the ΔΣ streams in real time by means of ΔΣ

arithmetic blocks. This allows the achievement of

very high computation precision with fast and

efficient digital architecture. All the data recorded

by the STPMC1 are accessible through an SPI

port, which is also used to configure and calibrate

the device. The configuration and calibration data

can be saved in a 112-bit OTP block, or

field monitoring

■ OTP memory for configuration and calibration

■ SPI interface

■ Supports IEC 62052-11 / 62053-21 / 62053-23

standards

■ Less than 0.1 % error over 1:1000 dynamic

range

Applications

■ Power metering

Description

The STPMC1 device functions as an energy

calculator and is an ASSP designed for effective

energy measurement in power line systems

utilizing Rogowski, current transformer, Shunt or

Hall current sensors. Used in combination with

one or more STPMSx ICs, it implements all the

functions needed in a 1-, 2- or 3-phase energy

dynamically set in microprocessor-based meters.

Table 1.

Order code

STPMC1BTR

Device summary

Temperature range

Package

Packaging

- 40 to 85 °C

TSSOP20 (tape and reel)

2500 parts per reel

April 2012

Doc ID 15728 Rev 6

1/77

This is information on a product in full production.

www.st.com

12 3 4 5 6 7...77

中文翻译

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