产品概述
描述
The STPM01 is designed for effective measurement of active, reactive and apparent energy in a power line system using Rogowski coil, current transformer and shunt sensors. This device can be implemented as a single chip monophase energy meter or as a peripheral measurement in a microcontroller based monophase or 3-phase energy meter. The STPM01 consists, essentially, of two parts: the analog part and the digital part. The former, is composed by preamplifier and 1storder Δ ∑ A/D converter blocks, band gap voltage reference, low drop voltage regulator, the latter, is composed by system control, oscillator, hard wired DSP and SPI interface. There is also an OTP block, which is controlled through the SPI by means of a dedicated command set. The configured bits are used for testing, configuration and calibration purpose. From a pair of Δ ∑ output signals coming from analog section, a DSP unit computes the amount of consummated active, reactive and apparent energy, RMS and instantaneous values of voltage and current. The results of computation are available as pulse frequency and states on the digital outputs of the device or as data bits in a data stream, which can be read from the device by means of SPI interface. This system bus interface is used also during production testing of the device and/or for temporary or permanent programming of bits of internal OTP. In the STPM01 an output signal with pulse frequency proportional to energy is generated, this signal is used in the calibration phase of the energy meter application allowing a very easy approach. When the device is fully configured and calibrated, a dedicated bit of OTP block can be written permanently in order to prevent accidental entering into some test mode or changing any configuration bit.
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所有功能
- Active, reactive, apparent energies and RMS values
- Ripple free active energy pulsed output
- Live and neutral monitoring for tamper detection
- Easy and fast digital calibration in only one point over the whole current range
- OTP for calibration and configuration
- Integrated linear VREGs for digital and analog supply
- Selectable RC or crystal oscillator
- Support 50 ÷ 60 Hz – IEC62052-11, IEC62053-2x specification
- Less than 0.1 % error
- Precision voltage reference: 1.23 V and 30 ppm/°C max
电路原理图
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All tools & software
所有资源
| 资源标题 | 版本 | 更新时间 |
|---|
产品规格 (1)
| 资源标题 | 版本 | 更新时间 | ||
|---|---|---|---|---|
| 8.0 | 13 Jun 2011 | 13 Jun 2011 |
应用手册 (5 of 9)
| 资源标题 | 版本 | 更新时间 | ||
|---|---|---|---|---|
| 1.0 | 08 Nov 2010 | 08 Nov 2010 | ||
| 2.0 | 06 Feb 2006 | 06 Feb 2006 | ||
| 1.0 | 17 Nov 2011 | 17 Nov 2011 | ||
| 1.0 | 09 Dec 2008 | 09 Dec 2008 | ||
| 2.0 | 30 Jun 2015 | 30 Jun 2015 | ||
| 3.0 | 02 Aug 2010 | 02 Aug 2010 | ||
| 1.0 | 27 Apr 2006 | 27 Apr 2006 | ||
| 1.0 | 17 May 2007 | 17 May 2007 | ||
| 2.0 | 30 Oct 2008 | 30 Oct 2008 |
用户手册 (2)
| 资源标题 | 版本 | 更新时间 | ||
|---|---|---|---|---|
| 1.0 | 03 Sep 2012 | 03 Sep 2012 | ||
| 1.0 | 29 Aug 2013 | 29 Aug 2013 |
工具/软件相关的应用笔记 (1)
| 资源标题 | 版本 | 更新时间 | ||
|---|---|---|---|---|
| 2.0 | 30 Jun 2015 | 30 Jun 2015 |
手册 (1)
| 资源标题 | 版本 | 更新时间 | ||
|---|---|---|---|---|
| 2.0 | 01 Aug 2015 | 01 Aug 2015 |
EDA符号、封装和3D模型
意法半导体 - STPM01
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封装
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样片和购买
| 产品型号 | 供货状态 | Budgetary Price (US$)*/Qty | 从ST订购 | Order from distributors | 包 | 包装类型 | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | Autoshutdown | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小值 | 最大值 | ||||||||||||||
| STPM01FTR | | | distributors 无法联系到经销商，请联系我们的销售办事处 |
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STPM01FTR NRND