MCP39F511A-E/MQ [Microchip]

The MCP39F511A device is a highly-integrated, complete single-phase power-monitoring IC designed for real-time measurement of input power for AC and DC power supplies, making it suitable for a wide range of consumer and industrial applications. It is capable of detecting the input voltage types in order to select DC or AC mode automatically. It includes dual-channel Delta-Sigma ADCs, a 16-bit calculation engine, EEPROM and a flexible 2-wire interface. Separate AC and DC calibration registers are provided, to ensure high-accuracy measurements in both modes. An integrated low-drift voltage reference with 7 ppm/°C in addition to 94.5 dB of SINAD performance on each measurement channel allows for better than 0.1% accurate designs across a 4000:1 dynamic range.

Real-Time Measurement of Input Power for AC or DC Supplies

Power Monitoring Accuracy capable of 0.1% error across 4000:1 dynamic range

Automatic Sensing and Switching Between AC and DC Modes

Built-In Calculations:
• Active, Reactive, Apparent Power
• Active and Reactive Energy Accumulation
• True RMS Current, RMS Voltage
• Line Frequency, Power Factor

Dedicated Zero Crossing Detection (ZCD) Pin

Dedicated PWM Output Pin

Automatic Event Pin Control through Fast Voltage Surge Detection

Fast Calibration Routines

2-wire UART: Baud Rate up to 115.2kbps

512 bytes User-accessible EEPROM through page read/write commands

Low-Drift Internal Voltage Reference: 7 ppm/°C typical

28-lead 5x5 QFN package

Extended Temperature Range -40°C to +125°C

AEC-Q100 qualified