MCP39F511A AC/DC Dual-Mode Power-Monitoring IC with Calculation and Energy Accumulation Features Applications Power Monitoring and Management for Smart Real-Time Measurement of Input Power for AC or Home/City DC Supplies Industrial Lighting Power Monitoring AC/DC Dual-Mode Power Monitoring Accuracy Capable of 0.1% Error Across 4000:1 Dynamic Power Measurement for Renewable Energy Sys- Range tem Automatic Sensing and Switching Between AC Intelligent Power Distribution Units and DC Modes Server Power Monitor Built-In Calculations on Fast 16-Bit Processing Description Core The MCP39F511A device is a highly-integrated, - Active and Reactive Energy Accumulation complete single-phase power-monitoring IC designed - Active, Reactive, Apparent Power for real-time measurement of input power for AC or DC - True RMS Current, RMS Voltage power supplies, making it suitable for a wide range of - Line Frequency, Power Factor consumer and industrial applications. It is capable of 64-bit Wide Import and Export Active Energy detecting the input voltage in order to work as DC or AC Accumulation Registers mode. It includes dual-channel Delta-Sigma ADCs, a 16-bit calculation engine, EEPROM and a flexible 64-bit Four Quadrant Reactive Energy 2-wire interface. Separate AC and DC calibration Accumulation Registers registers are provided, to ensure high-accuracy Automatic Saving the Energy Accumulation measurements in both modes. An integrated low-drift Registers into EEPROM at Power Off voltage reference with 7 ppm/C in addition to 94.5 dB Automatic Loading the Energy Accumulation of SINAD performance on each measurement channel Registers from EEPROM at Power On allows for better than 0.1% accurate designs across a Signed Active and Reactive Power Outputs 4000:1 dynamic range. Dedicated Zero Crossing Detection (ZCD) Pin Package Types Output with Less than 200 s Latency Dedicated PWM Output Pin with Programmable MCP39F511A Frequency and Duty Cycle 5x5 QFN* Automatic Event Pin Control through Fast Voltage Sag/Surge Detection Two Wire Serial Protocol with Selectable Baud Rate Up to 115.2 kbps using Universal Asynchronous Receiver/Transmitter (UART) 28 27 26 25 24 23 22 1 A Four Independent Registers for Minimum and EVENT1 21 GND Maximum Output Quantity Tracking NC 2 20 AN IN Fast Calibration Routines and Simplified NC 3 19 V1+ Command Protocol EP UART RX 4 18 V1- 512 Bytes User-Accessible EEPROM through 29 COMMON A 5 17 I1- Page Read/Write Commands 16 I1+ OSCI 6 Low-Drift Internal Voltage Reference, 7 ppm/C Typical OSCO EVENT2 15 7 28-lead 5x5 QFN Package 89 10 11 12 13 14 Extended Temperature Range -40C to +125C *Includes Exposed Thermal Pad (EP) see Table 3-1. 2018 Microchip Technology Inc. DS20006044A-page 1 DR NC NC D GND RESET MCLR AV DV DD DD D GND UART TX REFIN+/OUT COMMON B ZCD PWMMCP39F511A Functional Block Diagram AV A DV D DD GND DD GND Timing OSCI GGeeneratneratiioonn OSCO Internal Oscillator UART UART TX Serial UART RX 24-bit Delta-Sigma Interface I1+ + Multi-level PGA I1- - Modulator ADC 16-BIT PWM CORE FLASH V1+ 24-bit Delta-Sigma EVENT1 + Multi-level PGA Calculation V1- - Modulator ADC EVENT2 Engine Digital Outputs (CE) ZCD 10-bit SAR AN IN ADC DS20006044A-page 2 2018 Microchip Technology Inc. 3 3 SINC SINC Digital Filter Digital Filter