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Energy meter demonstration kit motherboard based on the STPMC1
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The purpose of the demonstration board is to provide an evaluation platform for the STPMC1 and STPMS2L devices, but it can also be used as a starting point to design a Class 1 meter for 2 to 4-wire power line systems using delta or wye service.

The STPMC1 is a metering ASSP implemented through an advanced 0.35 μm BCD6 technology.

The STPMS2L is an ASSP designed as a building block for single or multi-phase energy meters.

The STEVAL-IPE010V2 board is the motherboard based on the STPMC1 and works in conjunction with up to 5 STEVAL-IPE014V1 daughterboards (to be ordered separately), each with an STPMS2L mounted to sense the voltage and current of each phase.

Each phase is monitored by an independent daughterboard, in which an autonomous power supply is provided to the board itself and, once it is connected, also to the motherboard.

On this board, the STPMS2L device senses the phase current through a CT or a shunt sensor, and the phase voltage through a voltage divider.

The presence of dedicated networks greatly reduces the sampling (aliasing) noise and the crosstalk noise between voltage and current channels, increasing meter precision. The STPMS2L produces a sigma-delta stream, sent

together with the supply voltage, to the STPMC1 through a card edge connector.

The STEVAL-IPE010V2 motherboard receives the sigma-delta streams from the daughterboards which are further elaborated by the STPMC1. This device, from a 4.194 MHz crystal oscillator, provides a common clock with programmable frequency to all the daughterboards.

The STEVAL-IPE010V2 motherboard, through a 10-pin flat cable connector, can be interfaced to a microprocessor board to implement advanced metering features (multi-tariff, data management and storage, communication, etc). It also has stepper motor connectors for simple energy meter implementation.

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Data Brief

Key Features

  • Vnom: 230 VRMS
  • InomCT: 1 A (Imax30 A)
  • Inom Sh: 5 A (Imax80 A)
  • fLIN: 50 / 60 ± 10% Hz
  • Operating temperature: -40 - +85 °C
  • RoHS compliant


Design Resources


Technical Documentation

Product Specifications

Description Version Size
DB1546: Energy meter demonstration kit motherboard based on the STPMC1
2.0 183 KB

User Manual

Description Version Size
UM1059: The STPMC1 and STPMS2 evaluation kit
2.0 465 KB

Hardware Resources

Board Manufacturing Specification

Description Version Size
STEVAL-IPE010V2 gerber files
1.0 114 KB

Bill of Materials

Description Version Size
1.0 39 KB

Schematic Pack

Description Version Size
STEVAL-IPE010V2 schematics
2.1 47 KB

Related Tools and Software

Related Tools and Software

Part Number Description
STSW-MOTOR004 STPMC1 software setup
STEVAL-IPE014V1 Multiphase energy meter daughterboard based on the STPMS2 smart sensor device
STEVAL-IPE023V1 USB interface tool for STPMxx family of energy meter ICs

Sample & Buy

Part Number Marketing StatusCore ProductOrder From STUnit Price (US$)*
@ 1
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STEVAL-IPE010V2ActiveSTPMC1Buy Direct100.45Distributor reported inventory date: 2015-10-02
Distributor NameRegionStockMin. order
Newark Element14Order NowAMERICA10

(*) 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
(**) The Material Declaration forms available on 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.
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