Specifications

99Environmental Automation: Featured Products

Octal Power and Energy Measurement

IC Provides Accurate Data from Power

Distribution Units

78M6618

The 78M6618 measures power from up to eight single-phase power paths, providing

accurate usage data on eight branch circuits. The 32-bit compute engine and

the 21-bit delta-sigma ADC provide accuracy beyond that required for metering

applications. Temperature compensation and precision voltage reference keep

accuracy in specication over the industrial temperature range (-40°C to +85°C).

Benefits

• Provides high-accuracy data on power

draw on up to eight branch circuits

with a single IC

◦ < 0.5% Wh accuracy over 2000:1

current range over temperature

◦ Power factor measurement

◦ Exceeds IEC 62053/ANSI C12.20

standards

◦ Accumulated Wh, kWh, and cost

• Integrated features enable an

enhanced solution at low cost

◦ Integrated LCD driver up to 70 pixels

◦ UART and high-speed slave SPI host

interface options

◦ 19 GPIOs

◦ Programmable alarm thresholds