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March 2014 DocID026140 Rev 1 1/5
EVALSTPM34
Dual-phase energy metering evaluation board with 2 current
transformers based on the STPM34
Data brief
Features
• 0.2% accuracy dual or split-phase meter
• V
nom(RMS)
= 140 to 300 V, I
nom
/I
max(RMS)
=
5/100 A, f
lin
= 50/60 Hz ± 10%
• Connector for USB isolated hardware
programmer tool STEVAL-IPE023V1 and PC
GUI
• RS232 and UART isolated connectors to PC
GUI
• SPI/UART switch for device peripheral
selection
• 2 programmable LEDs on board
• Digital expansion to external system-on-chip or
MCU
• 3.3 V power supply: external or through
STEVAL-IPE023V1 isolated USB board
• IEC61000 standard compliant
• RoHS compliant
Description
The STPM34 evaluation board is a class 0.2,
dual-phase meter with 2 CTs for power line
systems with V
nom
= 140 to 300 V
(RMS)
,
I
nom
/I
max
= 5/100 A
(RMS)
, f
lin
= 50/60 Hz ± 10%
and T
amb
= -40 to +85 °C.
Measured active/reactive power can be output
from two programmable LEDs on the board.
The board can be interfaced with a PC running
evaluation software through an isolated RS232
port, or through the STEVAL-IPE023V1 USB
isolated interface tool for configuration and data
reading.
The board also has SPI/UART pins available to
interface a microcontroller for application
development.
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