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78M6618-IMR Datasheet |
Part Name | Description | Manufacturer |
78M6618-IMR | Octal Power and Energy Measurement IC | ![]() Teridian Semiconductor Corporation |
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DESCRIPTION
The Teridian 78M6618 is a highly integrated IC for independent monitoring and measurement of up to eight single-phase AC outlets. With multiple host interface options, an integrated LCD driver, and configurable I/Os, the device is ideal for metered power distribution units (PDUs) and rack enclosures for the data center, as well as intelligent power strips and subpanels in the grid-friendly digital home.
FEATURES
● < 0.5% Wh Accuracy Over Wide 2000:1
Current Range and Over Temperature
● Exceeds IEC 62053/ANSI C12.20 Standards
● Voltage Reference < 40ppm/°C
● 10 Sensor Inputs—V3P3 Referenced
● 21-Bit Delta-Sigma ADC with Independent
32-Bit Compute Engine (CE)
● 8-Bit MPU (80515), One Clock Cycle per
Instruction with 4KB MPU XRAM
● 128KB Flash with Security
● Integrated ICE for MPU Debug
● 32kHz Time Base with Hardware Watchdog
Timer
● UART and High-Speed Slave SPI Host Interface
Options
● Up to 19 General-Purpose 5V Tolerant I/O Pins
● LCD Driver (Up to 70 Pixels)
● Packaged in a Lead(Pb)-Free/RoHS-Compliant
(6/6) 68-Pin QFN
● Robust Sub-Metering Application Firmware:
o True RMS Calculations for Current, Voltage,
Line Frequency, Real Power, Reactive
Power, Apparent Power, and Power Factor
o Accumulated Watt-Hours, Kilowatt-Hours,
and Cost
o Intelligent Switch Control at Zero Crossings
o Digital Temperature Compensation
o Phase Compensation (15)
o Quick Calibration Routines
o 46-64Hz Line Frequency Range with Same
Calibration
o Programmable Alarm Thresholds
o High-Level UART Communication Protocols
o High-Level SPI Communication Protocols
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