Product overview
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 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 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 dynamically set in microprocessor-based meters.
-
All 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
- Supports Rogowski coil, current transformer, Shunt or Hall current sensors
- Exclusive ripple-free energy calculation algorithm
- Programmable pulsed output
- Stepper motor outputs
- Neutral current, temperature, and magnetic 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
Circuit Diagram
You might also like...
EDA Symbols, Footprints and 3D Models
STMicroelectronics - STPMC1
Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.
Please select one model supplier :
Symbols
Footprints
3D models
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| STPMC1BTR | Active | TSSOP-20 | Industrial | Ecopack2 | |
STPMC1BTR
Package:
TSSOP-20Material Declaration**:
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
Sample & Buy
| Part Number | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | Autoshutdown | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | ||||||||||||||
| STPMC1BTR | | | distributors No availability of distributors reported, please contact our sales office |
| |||||||||||
STPMC1BTR Active
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors