The 78M6618-IM/F is an octal power and energy measurement IC in 68 pin QFN package. It is a highly integrated IC for independent monitoring and measurement of up to eight single phase AC outlets. The device is ideal for metered power distribution units (PDUs) and rack enclosures for data centre as well as intelligent power strips and subpanels in grid friendly digital home with multiple host interface options, an integrated LCD driver and configurable I/Os. Scaled voltages from sensors are fed to Single Converter Technology that uses 21bit delta-sigma ADC, independent 32bit compute engine (CE) and digital temperature compensation and precision voltage references. The integrated MPU core and 128KB of flash memory provides a flexible means of configuration, post processing, data formatting, interfacing to host processor through UART or SPI interface displaying output data to an LCD or using DIO pins for intelligent relay control.
- Supply voltage range from 3V to 3.6V
- Operating temperature range from -40°C to 85°C
- Industry's first AC power monitoring IC for PDUs
- Less than 0.5% Wh accuracy over wide 2000:1 current range and over temperature
- Exceeds IEC 62053/ANSI C12.20 standards
- Less than 40ppm/°C voltage reference
- 10 sensor inputs, V3P3 referenced
- 8bit MPU (80515), one clock cycle per instruction with 4KB MPU XRAM
- Integrated ICE for MPU debug, 32KHz time base with hardware watchdog timer
- Up to 19 general purpose 5V tolerant I/O pins and LCD driver (up to 70 pixels)
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