MCP39F521 Series

24-Bit Single Phase AC/DC Power Monitoring IC

Catalog

24-Bit Single Phase AC/DC Power Monitoring IC

Part	Current - Supply	Measurement Error	Supplier Device Package	Package / Case	Voltage - I/O High	Meter Type	Voltage - I/O Low	Voltage - Supply [Min]	Voltage - Supply [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type
Microchip Technology MCP39F521-E/MQ	13 mA	0.1 %	28-QFN (5x5)	28-VFQFN Exposed Pad	3 V	Single Phase	0.4 V	2.7 V	3.6 V	125 °C	-40 °C	Surface Mount
Microchip Technology MCP39F521T-E/MQ	13 mA	0.1 %	28-QFN (5x5)	28-VFQFN Exposed Pad	3 V	Single Phase	0.4 V	2.7 V	3.6 V	125 °C	-40 °C	Surface Mount

Catalog

24-Bit Single Phase AC/DC Power Monitoring IC

Key Features

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

• * 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

• * I2C Interface

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

• * Non-volatile On-chip Memory, no external memory required

• * Low-Drift Internal Voltage Reference: 10 ppm/°C typical

• * 28-lead 5x5 QFN package

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

• * AEC-Q100 Grade 1

Description

The MCP39F521 is a highly integrated, single-phase power-monitoring IC designed for real-time measurement of input power for AC/DC power supplies, providing power and energy values. It includes dual-channel delta sigma ADCs, a 16-bit calculation engine, EEPROM and a flexible 2-wire interface. An integrated low-drift voltage reference in addition to 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.