78M6631-IMR/F

The Teridian™ 78M6631 is a highly integrated 3-phase power measurement and monitoring system-on-chip (SoC). It features a 10 MHz 8051-compatible MPU core and a 22-bit delta-sigma converter with a 32-bit compute engine. Designed for applications requiring precise 3-phase power and quality measurements, it supports both Delta and Wye configurations.

Key features include better than 0.5% accuracy over a wide 2000:1 dynamic range and over temperature. The device provides six analog inputs for interfacing with current and voltage sensors. The integrated MPU core and 128 KB of flash memory allow for flexible configuration, post-processing, and data formatting. Host communication is supported via UART, I2C, or SPI interfaces.

This IC is housed in a 56-TQFN (7x7) package, suitable for surface mount applications. It operates within a temperature range of -40°C to 85°C, making it robust for various environmental conditions. The device also includes features like true RMS calculations, power calculations (active, reactive, apparent, harmonic), line frequency, and power factor calculations.

Complete firmware is available from Maxim, which can be loaded into the IC during manufacturing test. This ensures a ready-to-use solution for demanding power monitoring tasks.