MCP39F511NT-E/MQ

Overview

The MCP39F511NT-E/MQ is a single-phase power monitor and regulator IC from Microchip Technology, housed in a QFN-28 package. It operates on a supply voltage range of 2.7 V to 3.6 V with a maximum operating current of 13 mA. The device features an accuracy of 0.1% and supports an operating temperature range from -40°C to +125°C. It is AEC-Q100 qualified for automotive applications.

Feature Summary

• Integrates dual-channel measurement capabilities for precise power monitoring within a single integrated circuit.
• Includes internal EEPROM to automatically store and retrieve critical power data during power transitions.
• Features a low-drift internal voltage reference and oscillator to simplify system calibration and reduce component count.

Applications

• Smart lighting systems requiring accurate energy consumption tracking
• Solar inverters utilizing dual AC/DC power modes
• Cloud servers and industrial equipment needing real-time power regulation

Procurement Notes

Verify the specific suffix 'NT' against official Microchip documentation to confirm tape-and-reel packaging configuration. Ensure the 'E' designation aligns with the required industrial temperature grade (-40°C to +125°C). Confirm that the MQ package type matches your PCB footprint requirements before finalizing procurement orders.

Selection Notes

Select this component when high accuracy (0.1%) is required for single-phase power monitoring in space-constrained designs. The integrated calculation engine reduces firmware development time by handling complex power metrics internally. Consider the AEC-Q100 qualification if the application demands automotive-grade reliability and thermal stability.

Part Context

This part belongs to Microchip's MCP39F511 family of power monitors, designed for high-precision energy measurement. It complements other variants like the MCP39F511A by offering specific packaging and operational configurations suitable for diverse embedded power management needs in consumer and industrial electronics.

Replacement Considerations

Consult official substitution lists for compatible single-phase power monitors. Verify pin compatibility and electrical specifications against alternatives such as the MCP39F511A or similar Microchip series devices to ensure functional equivalence without redesigning the host circuitry.

FAQ

Does the MCP39F511NT-E/MQ support both AC and DC power monitoring?

Yes, the device is designed to measure both AC and DC power modes, automatically detecting the source type to optimize measurement accuracy across a wide dynamic range.

What is the purpose of the internal EEPROM in this IC?

The internal EEPROM automatically saves power data during power-down events and restores it upon power-up, ensuring that critical measurement results are not lost during unexpected power interruptions.