MAX78615LMU Datasheet, PDF (1/62 Pages) Maxim Integrated Products – Isolated Energy Measurement Processor for Load Monitoring Units

MAX78615+LMU
Isolated Energy Measurement Processor
for Load Monitoring Units
GENERAL 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.
APPLICATIONS
• Building Automation Systems (Commercial, Industrial)
• Inverters and Renewable Energy Systems
• Level 1 and 2 EV Charging Systems
• Grid-Friendly Appliances and Smart Plugs
FEATURES
• 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
MAX78700
MAX78700
Measurement
Processor
Pulse
XFMR
Interface
RAM
UART
SPI
FLASH
I²C
MAX78615+LMU
Digital
I/O
Host
Interface
Load
Relay(s)
For pricing, delivery, and ordering information, please contact Maxim Direct at
1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
19-6571; Rev 0; 12/12