Isolated Energy Measurement Processor for Load Monitoring Units

Description

The MAX78615+LMU is an isolated energy measurement processor (EMP) for load monitoring and control of any 2-wire single-phase or 3-wire split-phase (120/180°) AC circuit. It provides flexible sensor configuration of up to two MAX78700 (four analog inputs) and numerous host interface options for easy integration into any system architecture.

The internal 24-bit processor and field upgradeable firmware performs all the necessary signal processing, compensation, and data formatting for accurate real-time measurement. Energy accumulation, alarm monitoring, and fault detection schemes minimize the overhead requirements of the host interface and/or network. The integrated flash memory also provides for nonvolatile storage of input configurations and calibration coefficients.

Key Features
    Best-in-Class Embedded Algorithms SupportHighly Accurate Electricity Measurements
        -Voltage, Current and Frequency
        -Active, Reactive, and ApparentPower/Energy
        -Power Quality Measurements IncludingPeak Current and Harmonic Content
        -Digital Temperature Compensation 
    Configurable Device Provides Design Flexibility
        -Nonvolatile Storage of Calibration andConfiguration Parameters
        -SPI, I2C, and UART Interface Options
        -Configurable I/O Pins for Alarm Signaling, Address Pins, or User Control 
    Highly Integrated Features Support CompactDesigns and Reduced Bill of Materials
        -Small 24-TQFN Package
        -Internal or External Oscillator TimingReferences
        -Remote ADC Interfaces Provide Cost-Effective and Reliable Isolation
        -Quick Calibration Routines MinimizeManufacturing (System) Cost
        -Digital Temperature Compensation