90E32AERGI

Overview

The Renesas 90E32AERGI is a three-phase energy polyphase meter integrated circuit housed in a 48-TQFP (7x7) package. It operates within a supply voltage range of 2.8 V to 3.6 V and supports an operating temperature range of -40°C to 85°C. The device features selectable input impedances of 50 kΩ, 80 kΩ, or 120 kΩ. It achieves a measurement error of 0.5% and utilizes I/O voltages with high levels of 2.8V/3.6V and low levels of 0.4V/0.8V.

Feature Summary

• Designed for three-phase energy metering applications
• Integrated signal processing for polyphase measurements
• Configurable input impedance options for flexible front-end interfacing

Applications

• Three-phase electricity meters
• Polyphase energy monitoring systems
• Industrial power management equipment

Procurement Notes

Verify component status as the part is marked as discontinued by DigiKey. Confirm availability through alternative distributors or secondary markets. Ensure compatibility with existing design constraints given the end-of-life status. Check for RoHS3 compliance documentation if required for specific regulatory environments.

Selection Notes

Select this component for designs requiring dedicated three-phase metering ICs with specified input impedance configurations. Consider the 48-TQFP package dimensions for PCB layout. Evaluate the 0.5% measurement error against system accuracy requirements. Verify that the 2.8 V to 3.6 V supply range aligns with the target power architecture.

Part Context

The 90E32 series represents Renesas' solution for accurate energy metering. The 90E32AERGI variant specifically targets three-phase applications. It integrates necessary analog-to-digital conversion and digital signal processing functions into a single chip, reducing external component count compared to discrete solutions.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.