MAX71315ECQ+

Overview

The MAX71315ECQ+ is a single-phase energy metering System on Chip (SoC) from Analog Devices, integrating a MAXQ30 user MPU core with 256 KB Flash and 21 KB SRAM. It supports current sensors including CTs, shunts, and Rogowski coils, achieving ±0.1% accuracy at a 5000:1 dynamic range. The device features 54 GPIOs, four UARTs, hardware encryption (3DES/AES), and an RTC. It drives LCDs up to 288 segments and operates within a -40°C to 85°C temperature range.

Feature Summary

• Integrates high-precision analog front-end with digital signal processing for accurate single-phase energy measurement
• Includes robust MAXQ30 microprocessor core for complex application logic and communication handling
• Supports multiple sensor types including current transformers, shunts, and Rogowski coils
• Provides integrated security features such as hardware-based 3DES and AES encryption

Applications

• Single-phase residential and commercial utility energy meters
• Portable battery-powered metering devices
• Industrial energy monitoring systems requiring high precision

Procurement Notes

Verify the specific suffix 'ECQ+' against official Analog Devices documentation to confirm package type and temperature grade. Note that distribution sources may list this part as discontinued; ensure availability through authorized channels or valid substitute programs before finalizing procurement plans.

Selection Notes

Select this component for applications requiring a compact, all-in-one solution for single-phase metering. It is suitable where space constraints limit board area, necessitating integration of MCU, memory, and analog front-end. Ensure system design accommodates the LQFP-100 package dimensions and voltage requirements.

Part Context

This SoC belongs to the MAX7131x family of energy metering chips. It complements other variants like the MAX71314C and MAX71335C by offering a balance of processing power and metering precision in a single-phase configuration, targeting both fixed installation and portable use cases.

Replacement Considerations

Check Analog Devices documentation for direct pin-compatible or functional substitutes within the MAX7131x series. Verify if newer revisions have superseded this specific ECQ+ variant.