STPMC1:Programmable poly-phase energy calculator IC

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.

Key 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
Product Specifications
DescriptionVersionSize
DS6283: Programmable poly-phase energy calculator IC7.02 MB
Application Notes
DescriptionVersionSize
AN3306: Current sensing in metering applications using a Pulse current sensor and ST metering devices1.1633 KB
AN3398: Fast digital calibration procedure for STPMC1 based energy meters1.0185 KB
AN4121: Poly-phase demonstration kit with the STPMC1 and STPMS21.01 MB
AN3254: SPI protocol for STPMC1 metering device1.1656 KB
User Manuals
DescriptionVersionSize
UM1488: STPMC1 evaluation software2.02 MB
Presentations
DescriptionVersionSize
ST products and solutions for solar energy5.12 MB
Flyers
DescriptionVersionSize
Poly-phase chipset for energy measurement1.0361 KB
Brochures
DescriptionVersionSize
Smart grid distribution and smart meters - Energy-efficient solutions2.01 MB
Solution Evaluation Tools
Part NumberManufacturerDescription
STEVAL-IPP002V1IEC 61334-5-1 compliant smart meter system for AMI application based on STM32, ST7570 PLM and STPMC1/STPMS1 chipset
Sample & Buy
Part NumberPackagePacking TypeOperating Temperature (°C) (min)Operating Temperature (°C) (max)AutoshutdownUnit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
STPMC1BTRTSSOP 20Tape And Reel-4085-1.51000NECEAR99MALAYSIA
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
STPMC1BTRTSSOP 20IndustrialEcopack2 (**)md_ya_tssop20_-wspc-hfyaul87aa5.xml
Programmable poly-phase energy calculator IC STPMC1
circuit_diagram_15728_thumbnail.png STPMC1
Current sensing in metering applications using a Pulse current sensor and ST metering devices STPMC1
Fast digital calibration procedure for STPMC1 based energy meters STPMC1
Poly-phase demonstration kit with the STPMC1 and STPMS2 STPMS2
SPI protocol for STPMC1 metering device STPMC1
STPMC1 evaluation software STPMC1
STEVAL-ISV006V2: solar battery charger using the SPV1040 STEVAL-ISV006V2
Poly-phase demonstration kit with the STPMC1 and STPMS2 STPMS2
STEVAL-ISA062V1: 6 W, wide-range dual and single output SMPS demonstration board based on the VIPer17 STEVAL-ISA062V1
md_ya_tssop20_-wspc-hfyaul87aa5.xml STPMC1