STPM01(2004) Datasheet - STMicroelectronics

DESCRIPTION

   The STPM01 is designed for effective measurement of active energy in a power line system using the Rogowski and/or Shunt principle. This device can be implemented as a single chip 1-phase energy meter or as a peripheral measurement in a microprocessor 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 ΣD AD converter blocks, Bandgap voltage reference, Lowdrop voltage regulator and a pair of DC buffer, the latter, is composed by system control, clock generator, hard wired DSP and SPI interface. There is also a OTP block, which is controlled through the SPI by means of a dedicated command set. The configured bits are used for testing, configuration and calibration purpose.

◾ INTEGRATED LINEAR VREGS TO SUPPLY

   THE DIGITAL AND ANALOG CORES

◾ ADVANCED BICMOS TECHNOLOGY FOR

   HIGH PERFORMANCE

◾ OTP FOR CALIBRATION AND

   CONFIGURATION

◾ INTEGRATED OSCILLATOR WITH

   EXTERNAL RESISTOR OR CRYSTAL

◾ MONITOR BOTH LIVE AND NEUTRAL FOR

   TAMPER DETECTION

◾ SIGMA DELTA 1st ORDER CONVERTER

◾ POWER SUPPLY CURRENT LESS THAN

   6mA

◾ SUPPORT 50 ÷ 60 Hz – IEC 62052-11,

   IEC 62053-2X SPECIFICATION FOR CLASS

   0.5 AC WATT METERS

◾ PRECISION VOLTAGE REFERENCE ON

   CHIP: 1.25 V AND 30 ppm/°C MAX

◾ TSSOP20 PACKAGE