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STMicroelectronics EVALSTPM33

Name: EVALSTPM33
Brand: STMicroelectronics
SKU: EVALSTPM33
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: EVALSTPM33

Manufacturer:: STMicroelectronics

Category:: Evaluation and Demonstration Boards and Kits

Package:

Datasheet:: EVALSTPM33.pdf

Description:: EVAL BOARD FOR STPM33

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:4,493

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Product details

Overview

EVALSTPM33 from STMicroelectronics is a Class 0.2 single-phase energy metering evaluation board based on the STPM33 metrology IC, featuring neutral-current-based tamper monitoring, dual current sensing (CT + shunt), and operation across 140–300 V_RMS/5–100 A_RMS at 50/60 Hz ±10%. It supports isolated USB-to-UART and STEVAL-IPE023V1 programming interfaces for real-time configuration and data readout in smart meter development.

For engineers reviewing the EVALSTPM33 datasheet, EVALSTPM33 pinout, EVALSTPM33 application, or EVALSTPM33 equivalent, key selection considerations include IEC61000 compliance, dual-sensor current measurement capability, SPI/UART peripheral select flexibility, programmable LED power indication, and RoHS-compliant industrial-grade (-40°C to +85°C) operation.

Technical Context

The EVALSTPM33 implements a complete single-phase metering reference design centered on the STPM33 polyphase metrology IC, with hardware-level tamper detection via dedicated neutral current monitoring circuitry. It integrates both current transformer (CT) and shunt resistor inputs, enabling comparative accuracy validation under varying load conditions.

Interface architecture supports dual communication paths: isolated USB-to-UART (virtual COM port) for GUI-based evaluation and SPI/UART switch-selectable pins for MCU integration into custom firmware stacks. Power is supplied either externally or via the STEVAL-IPE023V1 isolated USB board at 3.3 V.

Key Specifications

Parameter	Value and Actual Design Meaning
Accuracy Class	Class 0.2 per IEC 62053-21 - guarantees ≤0.2% active energy error over specified operating range.
Voltage Range	140–300 V_RMS - supports global single-phase mains (EU, APAC, LATAM) without external scaling.
Current Range	5–100 A_RMS - accommodates residential and light-commercial metering with CT + shunt sensor redundancy.
Frequency Range	50/60 Hz ±10% - maintains metrology accuracy across grid frequency drift and generator-supplied systems.
Operating Temp	-40°C to +85°C - validated for outdoor meter enclosures and uncontrolled industrial environments.
Compliance	IEC 61000-4-x EMI/ESD immunity - meets electromagnetic compatibility requirements for field-deployed meters.

Availability

EVALSTPM33 is available at Aetrix Electronics and suitable for smart meter prototyping, energy monitoring system validation, and IEC 62053-compliant meter certification testing requiring stable component supply and traceable evaluation hardware.

Supply support for EVALSTPM33 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 applications.

The EVALSTPM33 belongs to ST's energy metering evaluation platform family, engineered to accelerate time-to-certification for Class 0.2 and Class 0.5 single-phase meters compliant with IEC 62053 and IEC 61000 standards.

FAQ

What is the primary function of the EVALSTPM33 evaluation board?

The EVALSTPM33 is a fully assembled, IEC 61000-compliant evaluation platform for the STPM33 metrology IC. Its primary function is to enable rapid validation of single-phase active/reactive energy measurement accuracy, tamper detection logic, and dual-sensor (CT + shunt) performance under real-world voltage/current/frequency conditions before full-system integration.

Does EVALSTPM33 support both UART and SPI communication simultaneously?

No - the board features an SPI/UART switch that selects one interface mode at a time. This hardware-multiplexed design prevents bus contention and ensures deterministic peripheral access during firmware development or GUI-based calibration, aligning with STPM33's native serial interface constraints.

Can the EVALSTPM33 be powered solely through the USB connection?

Yes - when used with the STEVAL-IPE023V1 isolated USB programmer, the board receives regulated 3.3 V power directly via the isolation barrier. External 3.3 V supply is optional and required only when bypassing the STEVAL-IPE023V1 interface for standalone MCU-hosted operation.

How is tamper detection implemented on this board?

Tamper detection is implemented via dedicated neutral current monitoring using a separate current sensor channel. The STPM33 compares neutral and phase currents in real time; deviation exceeding configurable thresholds triggers tamper flags accessible via SPI/UART, enabling anti-tampering logic in host firmware or GUI alerts.

EVALSTPM33 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Packaging:: Box

Product Status:: Active

Type:: Power Management

Function:: Energy/Power Meter

Embedded:: -

Utilized IC / Part:: STPM33

Primary Attributes:: Isolated

Secondary Attributes:: On-Board LEDs

Contents:: Board(s)

EVALSTPM33 FAQ

1.How can I place an order for EVALSTPM33 through Aetrix?

Please submit a Request for Quotation (RFQ) for EVALSTPM33 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for EVALSTPM33 reliable?

The price and inventory of EVALSTPM33 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for EVALSTPM33 is usually 5 days.

3.What payment methods are accepted for EVALSTPM33?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for EVALSTPM33 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for EVALSTPM33?

EVALSTPM33 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your EVALSTPM33 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for EVALSTPM33?

For technical support, including EVALSTPM33 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your EVALSTPM33 requirements.

6.How does Aetrix verify that EVALSTPM33 is sourced from the original manufacturer or authorized distributors?

All EVALSTPM33 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that EVALSTPM33 meets industry standards.

7.What is the process for return or replacement of EVALSTPM33?

All EVALSTPM33 units undergo pre-shipment inspection (PSI). If there is an issue with EVALSTPM33, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The EVALSTPM33 part is unused and in its original packaging.

Return procedure for EVALSTPM33:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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