STPM01(2007) Datasheet - STMicroelectronics

Description

   The STPM01 is designed for effective measurement of active, reactive and apparent energy in a power line system using Rogowski Coil, Current Transformer and Shunt sensors. This device can be implemented as a single chip 1-phase energy meter or as a peripheral measurement in a microcontroller based 1-phase or 3-phase energy meter. The STPM01 consists, essentially, of two parts: the analog part and the digital part. The former, is composed by preamplifier and 1st order ∆ ∑ A/D converter blocks, Band gap voltage reference, Low drop voltage regulator, the latter, is composed by system control, oscillator, hard wired DSP and SPI interface.

Feature summary

◾ Active, reactive, apparent energies and RMS

   values

◾ Ripple free active energy pulsed output

◾ Live and neutral monitoring for tamper

   detection

◾ Easy and fast digital calibration in only one

   point over the whole current range

◾ OTP for calibration and configuration

◾ Integrated linear VREGS for digital and analog

   supply

◾ Selectable RC or crystal oscillator

◾ Support 50÷60 HZ – IEC62052-11, IEC62053-

   2x specification

◾ Less than 0.1% error

◾ Precision voltage reference:

   1.23V and 30 ppm/°C Max