STMicroelectronics Energy Meter IC 32-Pin QFN32L, STPM33TR

The STMicroelectronics ASSP designed for high accuracy measurement of power and energies in power line systems using the Rogowski coil, current transformer or shunt current sensors. It provides instantaneous voltage and current waveforms and calculates RMS values of voltage and currents, active, reactive and apparent power and energies.

Dual mode apparent energy calculation
Instantaneous and averaged power
Under and overvoltage detection and monitoring
Overcurrent detection and monitoring
UART and SPI serial interface with programmable CRC polynomial verification
Programmable LED and interrupt outputs