MAX78615+LMU - Isolated Energy Measurement Processor for Load Monitoring Units


Maxim offers the industry's smallest form-factor solution available for embedded AC measurement

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 perform 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.

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Features
  • Building automation systems (commercial, industrial)
  • Inverters and renewable energy systems
  • Level 1 and 2 EV charging systems
  • Grid-friendly appliances and smart plugs
Applications
  • Utilizes MAX78700 isolated data converter(s) and resistive sensors
  • Flexible SPI, I²C, or UART interface options with configurable I/O pins for alarm signaling, address pins, or user control
  • Nonvolatile storage of calibration and configuration parameters
  • Small 24-TQFN package and reduced bill of materials
  • Internal or external oscillator timing references
  • Quick calibration routines minimize manufacturing (system) cost

MAX78615+LMU

Manufacturer Part Number Description Available Quantity Datasheets
MAX78615+LMU/A01 IC ENERGY MEAS PROC LMU TQFN 29

Eval Board

Manufacturer Part Number Description Available Quantity Datasheets
MAXREFDES14# REFERENCE DESIGN SONOMA 5