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STPM34 Datasheet ASSP

Manufacturer: STMicroelectronics

Overview: STPM32, STPM33, STPM34 Datasheet ASSP for metering applications with up to four independent 24-bit 2nd order sigma-delta ADCs, 4 MHz OSF and 2 embedded PGLNA Product status link STPM32 STPM33 STPM34 Product.

Download the STPM34 datasheet PDF. This datasheet also includes the STPM32 variant, as both parts are published together in a single manufacturer document.

General Description

The STPM3x is an ASSP family designed for high accuracy measurement of power and energies in power line systems using the Rogowski coil, current transformer or shunt current sensors.

The STPM3x provides instantaneous voltage and current waveforms and calculates RMS values of voltage and currents, active, reactive and apparent power and energies.

The STPM3x is a mixed signal IC family consisting of an analog and a digital section.

Key Features

  • Active power accuracy:.
  • < 0.1% error over 5000 : 1 dynamic range.
  • < 0.5% error over 10000 : 1 dynamic range.
  • Exceeds 50-60 Hz EN 50470-x, IEC 62053-2x, ANSI12.2x standard requirements for AC watt meters.
  • Reactive power accuracy:.
  • < 0.1% error over 2000 : 1 dynamic range.
  • Dual mode apparent energy calculation.
  • Instantaneous and averaged power.
  • RMS and instantaneous voltage and current.
  • Under and o.