78M6610LMU Datasheet, PDF (1/63 Pages) Maxim Integrated Products – Energy Measurement Processor for Load Monitoring Units

78M6610+LMU
Energy Measurement Processor
for Load Monitoring Units
GENERAL DESCRIPTION
The 78M6610+LMU is an 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 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
• Four Configurable Analog Inputs for
Monitoring Any Single-Phase Circuit
(2/3-Wire)
• Supports Current Transformers (CT) and
Resistive Shunts
• 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
Voltage
Sensor(s)
Current
Sensor(s)
Single Converter
Front End
Measurement
Processor
MUX ADC
RAM
FLASH
78M6610+LMU
UART
SPI
I²C
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.
19-6573; Rev 0; 1/13