EVALSTPM3X-3PH：Poly-phase energy metering demonstration board with current transformers based on the STPM33, STPM34 and STM8S903
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
Product Specifications
User Manuals
Board Manufacturing Specifications
Bill of Materials
Schematic Packs
Flyers
License Agreement
Sample & Buy
| Part Number | Core Product | Unit Price (US$)
* | Quantity | ECCN (EU) | ECCN (US) | Country of Origin |
|---|
| EVALSTPM3X-3PH | STPM33, STPM34 | - | - | NEC | EAR99 | - |
Quality & Reliability
| Part Number | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|
| EVALSTPM3X-3PH | CARD | Industrial | Ecopack1 | |
