Poly-phase energy metering demonstration board with current transformers based on the STPM33, STPM34 and STM8S903

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  • The STPM33, STPM34 poly-phase evaluation board is a Class 0.2, single-phase or poly-phase meter with current transformer sensors for power line systems of Vnom= 140 to 300 VRMS, Inom/ Imax = 5/100 ARMS, flin = 50/60 Hz ± 10% and Tamb= -40 to +85 °C.

    Measured data from the STPM33 and STPM34 are read by the STM8S903 device for 3-phase energy and power calculations and the active/reactive cumulative LED signals generation.
    To display all measurements, the board can be interfaced with PC running evaluation software through an isolated USB port, which provides also the 3.3 V power supply.
    The board has also SPI/UART pins available to be interfaced to an external microcontroller for further application development.

    Key Features

    0.2% accuracy poly-phase meter evaluation board


    Vnom(RMS)= 140 to 300 V, Inom / Imax(RMS)= 5/100 A, flin = 50/60 Hz ± 10%


    USB isolated connector to PC GUI


    Power supply 3.3 V through USB connector


    SPI/UART connector for STPM33/34 direct access
    SWIM connector for firmware upgrade


    SPI/UART connector for expansion to external MCU


    2x LEDs on board for active-reactive power


    IEC61000 standard compliant


    RoHS compliant

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Part Number
Core Product
Marketing Status
Budgetary Price (US$)*
Quantity
ECCN (US)
Country of Origin
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EVALSTPM3X-3PH STPM33, STPM34
Active
140.0 1 EAR99 - Check Availability

Distributor availability ofEVALSTPM3X-3PH

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 4 1 Order Now

Distributor reported inventory date: 2019-03-26

Distributor Name

MOUSER

Stock

4

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-03-26

Buy direct

EVALSTPM3X-3PH

Core Product

STPM33, STPM34

Marketing Status

Active

Unit Price (US$)

140.0*

Distributor availability ofEVALSTPM3X-3PH

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 4 1 Order Now

Distributor reported inventory date: 2019-03-26

Distributor Name

MOUSER

Stock

4

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-03-26

Unit Price (US$)

140

Quantity

1

ECCN (US)

EAR99

Country of Origin

-

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Related Applications

Metering

00 Files Selected

Technical Documentation

    • Description Version Size Action
      DB2450
      Poly-phase energy metering evaluation board with current transformers based on the STPM33, STPM34 and STM8S903
      1.0
      228.77 KB
      PDF
      DB2450

      Poly-phase energy metering evaluation board with current transformers based on the STPM33, STPM34 and STM8S903

    • Description Version Size Action
      AN4470
      The STPM3x and the STCOMET application calibration
      3.0
      757.12 KB
      PDF
      AN4470

      The STPM3x and the STCOMET application calibration

    • Description Version Size Action
      UM1948
      EVALSTPM3X-3PH evaluation board firmware
      1.0
      573.54 KB
      PDF
      UM1944
      EVALSTPM3x-3PH evaluation board and graphical user interface (GUI)
      1.0
      894.38 KB
      PDF
      UM1948

      EVALSTPM3X-3PH evaluation board firmware

      UM1944

      EVALSTPM3x-3PH evaluation board and graphical user interface (GUI)

Hardware Resources

    • Description Version Size Action
      EVALSTPM3X-3PH gerber files
      178.51 KB
      ZIP

      EVALSTPM3X-3PH gerber files

    • Description Version Size Action
      EVALSTPM3X-3PH
      121.96 KB
      PDF

      EVALSTPM3X-3PH

    • Description Version Size Action
      EVALSTPM3X-3PH schematic
      170.48 KB
      PDF

      EVALSTPM3X-3PH schematic

Publications and Collaterals

    • Description Version Size Action
      STPM32, STPM33, STPM34 - Taking care of every milliwatt 10.2016
      1.58 MB
      PDF

      STPM32, STPM33, STPM34 - Taking care of every milliwatt

Legal

    • Description Version Size Action
      Evaluation products license agreement 1.6
      74.12 KB
      PDF

      Evaluation products license agreement

Part Number Marketing Status Package Grade RoHS Compliance Grade WEEE Compliant Material Declaration**
EVALSTPM3X-3PH
Active
CARD Industrial Ecopack1 -

EVALSTPM3X-3PH

Package:

CARD

Material Declaration**:

Marketing Status

Active

Package

CARD

Grade

Industrial

RoHS Compliance Grade

Ecopack1

(**) 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.