STMicroelectronics STEVAL-IPE018V1

Overview

STEVAL-IPE018V1 from STMicroelectronics is a single-phase energy metering demonstration board based on the STPM10 metrology IC, achieving Class 0.5 accuracy for utility-grade billing applications. It supports 140–300 V_RMS nominal voltage, 2/20 A_RMS current range, and 45–65 Hz line frequency, with capacitive power supply and SPI interface connectivity.

For engineers reviewing the STEVAL-IPE018V1 datasheet, STEVAL-IPE018V1 pinout, STEVAL-IPE018V1 application, or STEVAL-IPE018V1 equivalent, key selection factors include its certified accuracy class, CT-based current sensing architecture, SPI host interface compatibility, and operating temperature range of –40 °C to +85 °C.

Technical Context

The board implements a complete single-phase active/reactive energy measurement solution using the STPM10, a dedicated polyphase metrology IC with built-in ADCs, digital signal processing, and RMS/energy computation engines. It interfaces directly with one current transformer and a voltage divider network for line voltage sampling.

Calibration and data readout are performed via a 10-pin header supporting SPI communication, enabling integration with external microcontrollers or PC-based programming tools. The capacitive power supply eliminates need for isolated transformers, reducing BOM cost and board footprint.

Key Specifications

Availability

STEVAL-IPE018V1 is available at Aetrix Electronics and suitable for energy meter reference design validation, firmware development for smart metering systems, and Class 0.5 accuracy verification in utility compliance testing.

Supply support for STEVAL-IPE018V1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, analog ICs, power devices, and sensors for industrial, automotive, and consumer markets.

The STEVAL-IPE018V1 belongs to ST's Smart Energy Evaluation Platform series, developed specifically to accelerate certification-ready meter design by providing pre-validated hardware, firmware examples, and metrology calibration guidance.

FAQ

Does STEVAL-IPE018V1 include firmware for energy calculation?

Yes - the board ships with factory-loaded firmware implementing active/reactive energy accumulation, RMS voltage/current computation, and SPI-accessible registers per STPM10 specification. Source code and configuration utilities are provided in ST's official software package SPMB002.

Can STEVAL-IPE018V1 be used with a different current sensor?

No - it is designed exclusively for use with the included 20 A:2.5 mA current transformer (CT). Substituting other sensors invalidates Class 0.5 calibration and requires full re-characterization of gain, phase, and offset compensation parameters.

Is an external microcontroller required to operate STEVAL-IPE018V1?

No - the STPM10 handles all metrology computations autonomously. An external MCU is only needed for host-level functions: reading accumulated energy values, configuring registers, or integrating into a larger smart meter system via SPI.

What documentation is provided with STEVAL-IPE018V1?

ST provides the Data Brief (Doc ID 022630), schematic (PDF), bill of materials, layout files, and SPMB002 firmware package containing drivers, calibration tools, and example projects for STM32 and generic SPI hosts.