MAX78615-LMU 데이터 시트보기 (PDF) - Maxim Integrated

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MAX78615-LMU

Isolated Energy Measurement Processor for Load Monitoring Units

Maxim Integrated 

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

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