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71M6521BE Datasheet Energy Meter

Manufacturer: TERIDIAN Semiconductor

Overview: .. 71M6521BE Energy Meter IC DATA SHEET JANUARY 2008 GENERAL.

General Description

The TERIDIAN 71M6521BE is a highly integrated SOC with an MPU core, FLASH and LCD driver.

TERIDIAN’s patented Single Converter Technology™ with a 22-bit delta-sigma ADC, four analog inputs, digital temperature pensation, precision voltage reference, battery voltage monitor, and 32bit putation engine (CE) supports a wide range of residential metering applications with very few low-cost external ponents.

A 32kHz crystal time-base for the entire system further reduces system cost.

Key Features

  • < 0.4% Wh accuracy over 2000:1 current range and over temperature.
  • Exceeds IEC62053 / ANSI C12.20 standards.
  • Voltage reference < 40ppm/°C.
  • Four sensor inputs.
  • VDD referenced.
  • Low jitter Wh test output (10kHz maximum).
  • Pulse count for Wh pulse output.
  • Tamper detection: Neutral current with CT or shunt.
  • Line frequency count for time keeping.
  • Digital temperature compensation.
  • Sag detection for phase A.

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