Features

• MCP39F511 Energy Measurement ICs. The MCP39F511 from Microchip is an integrated, single-phase power monitoring device that provides real-time measurement of input power and energy values for AC/DC power supplies. On-board are two Delta-Sigma Analogue-to-Digital Converters (ADCs), a 16-bit Calculation Engine, EEPROM and a flexible 2-Wire Interface. An integrated low-drift voltage reference, combined with the 94.5 dB of SINAD performance on each measurement channel, allows for better than 0.1% accurate designs across a 4000:1 dynamic range. Features. Power monitoring accuracy capable of 0.1% error across 4000:1 dynamic range Built-in calculations using a 16-Bit processing core measuring: - Active, reactive and 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 with 115.2k baud rate 512 bytes user-accessible EEPROM through page read/write commands Non-volatile on-chip Memory Low-Drift Internal Voltage Reference: 10 ppm/°C typical Extended Temperature Range -40°C to +125°C