78M6631-IM/F/P48

Overview

The 78M6631-IM/F/P48 is a three-phase power measurement and monitoring System-on-Chip (SoC) manufactured by Analog Devices Inc. under the Maxim Integrated brand. It integrates a 10MHz 8051-compatible microprocessor unit core with Teridian’s Single Converter Technology, which includes a 22-bit delta-sigma analog-to-digital converter and a 32-bit compute engine. The device supports both Delta and Wye three-phase configurations via six analog inputs for voltage and current sensing. It features 128KB of flash memory, hardware watchdog timer, and multiple communication interfaces including UART, I²C, and high-speed SPI.

Feature Summary

• Integrates a 10MHz 8051-compatible MPU core with 128KB flash memory and 4KB XRAM for flexible configuration and post-processing.
• Utilizes Single Converter Technology with a 22-bit delta-sigma ADC and 32-bit compute engine to achieve high-precision watt measurements.
• Supports pin- or bi-selectable Delta or Wye three-phase connection configurations.
• Provides versatile host interface options including UART, I²C, and high-speed slave SPI alongside general-purpose I/O pins.

Applications

• Three-phase power distribution units
• Building automation systems
• Data center power monitoring
• Motor run applications
• Solar inverters

Procurement Notes

Verify the specific suffix F/P48 against official datasheets to confirm package type and temperature range. Confirm availability status as supply may be limited. Ensure compatibility with existing firmware requirements given the integrated MPU core. Check RoHS compliance details if required for your region. Validate that the selected variant matches your system's voltage reference and interface needs.

Selection Notes

Select this component when high accuracy over a wide current range is required for three-phase metering. It is suitable for applications exceeding IEC 62053 and ANSI C12.20 standards. Consider its integrated compute engine for reducing host processor load. Evaluate the need for its specific communication interfaces and I/O capabilities. Ensure the operating temperature range meets your environmental constraints.

Part Context

This part belongs to the 78M6631 series of highly integrated power measurement SoCs. It is designed specifically for applications requiring precise three-phase power and quality measurements. The series leverages Teridian’s proprietary conversion technology to deliver performance beyond standard metering ICs. It serves as a complete solution for energy monitoring in industrial and commercial settings.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify cross-references through official manufacturer channels before substitution.