MCP3906A-E/SS

Overview

The MCP3906A-E/SS is a single-phase energy metering integrated circuit designed for residential applications, supporting IEC 62053 standards. It features two 16-bit delta-sigma ADCs and an internal low-drift voltage reference (<15ppm/°C). The device operates on a 4.5 V to 5.5 V supply with a typical measurement error of 0.1% across a 1:500 dynamic range. It provides frequency outputs proportional to average active power and instantaneous power for calibration. The component is housed in a 24-pin SSOP package and is qualified under AEC-Q100 for automotive reliability.

Feature Summary

• Supports international energy metering standards including IEC 62053
• Integrates dual 16-bit delta-sigma analog-to-digital converters
• Includes ultra-low temperature drift internal voltage reference
• Provides frequency outputs for average active and instantaneous power

Applications

• Single-phase residential energy meters
• Analog front-end designs for LCD microcontroller-based meters
• Stand-alone low-cost energy meter implementations

Procurement Notes

Verify the specific suffix 'E' indicates industrial temperature grade (-40°C to +85°C) and tube packaging. Confirm AEC-Q100 qualification status matches project requirements. Ensure compatibility with 4.5V to 5.5V supply rails. Check for moisture sensitivity level constraints during assembly. Validate pinout against the official datasheet for the 24-SSOP package.

Selection Notes

Select this component for high-accuracy single-phase metering requiring compliance with IEC 62053. The integrated low-drift reference reduces external component count. Suitable for designs needing direct frequency output for calibration without additional processing. Consider the 24-SSOP package size for PCB layout constraints. Verify that the 16-bit resolution meets the required dynamic range specifications.

Part Context

This part belongs to the MCP3906 family of energy metering ICs from Microchip Technology. It is specifically engineered for single-phase applications, offering a cost-effective solution compared to multi-channel alternatives. The device integrates signal conditioning and digitization, simplifying the design of smart meters and traditional electromechanical replacements.

Replacement Considerations

MCP3906AT-I/SS is a related variant within the same family.