MCP39F511N-E/MQ

Overview

The MCP39F511N-E/MQ is a high-integration dual-channel single-phase power monitoring IC designed for real-time measurement of dual-socket wall outlets, power boards, and input power in consumer and industrial applications. It features dual 24-bit Delta-Sigma ADCs for current measurement, a 10-bit SAR ADC for voltage measurement, and a 16-bit calculation engine. The device operates within a supply voltage range of 2.7 V to 3.6 V, with a maximum operating current of 13 mA. It achieves an accuracy of 0.1% and maintains performance across a temperature range of -40°C to +125°C.

Feature Summary

• Integrates dual 24-bit Delta-Sigma ADCs for precise current measurement alongside a 10-bit SAR ADC for voltage sensing.
• Includes a 16-bit calculation engine capable of computing active, reactive, and apparent power metrics automatically.
• Features integrated EEPROM for automatic saving and reading of power data during power loss or power-up events.
• Provides flexible two-wire interface connectivity and supports dynamic switching between AC and DC power modes.

Applications

• Real-time measurement of dual-socket wall outlets
• Power board monitoring in consumer electronics
• Input power measurement in industrial applications

Procurement Notes

Verify the specific suffix 'E/MQ' corresponds to the QFN-28 package and AEC-Q100 qualification status as documented. Confirm that the ordering part number matches the exact electrical specifications required for your design, particularly the 2.7 V to 3.6 V supply range and -40°C to +125°C operating temperature limits. Ensure compatibility with the flexible two-wire interface protocol used by the calculation engine.

Selection Notes

Select this component when designing systems requiring simultaneous AC and DC power monitoring with industry-leading precision. The integrated low-drift voltage reference and internal oscillator reduce external component count and calibration complexity. It is suitable for applications demanding high dynamic range and accurate energy accumulation without extensive firmware development for basic power calculations.

Part Context

Microchip Technology specializes in microcontrollers, mixed-signal, and analog solutions. The MCP39F511 series addresses the need for simplified development in smart home and IoT markets by combining power calculation and event monitoring into a single IC. This integration lowers material costs and accelerates time-to-market for energy monitoring products.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should consult Microchip's official resources for comparable parts if alternative sourcing is required.

FAQ

How does the MCP39F511N handle power loss?

The device includes integrated EEPROM that automatically saves power data upon power loss and reads it back upon power-up, ensuring measurement results are never lost.

What types of power can the calculation engine compute?

The 16-bit calculation engine computes standard power metrics including active power, reactive power, apparent power, active and reactive energy, RMS current and voltage, line frequency, and power factor.