90E36AERGI

Overview

The Renesas 90E36AERGI is a three-phase energy polyphase metering integrated circuit designed for high-accuracy utility applications. It operates within a supply voltage range of 2.8 V to 3.6 V and supports I/O levels of 2.8V/3.6V (high) and 0.4V/0.8V (low). The device features selectable input impedances of 50 kΩ, 80 kΩ, and 120 kΩ, with a measurement error of 0.5%. It is housed in a 48-TQFP package (7x7 mm) and functions reliably across an industrial temperature range of -40°C to 85°C.

Feature Summary

• Provides dedicated hardware for three-phase energy metering calculations
• Supports multiple input impedance configurations for flexible sensor interfacing
• Ensures precise energy measurement with specified low error rates

Applications

• Three-phase electricity metering systems
• Utility grid monitoring infrastructure
• Industrial power management units

Procurement Notes

Verify component authenticity through authorized channels as the part status may be discontinued or limited. Confirm that the 48-TQFP package dimensions match your PCB footprint requirements. Ensure your design accommodates the specific 2.8 V to 3.6 V supply voltage constraints and the -40°C to 85°C operating temperature range for reliable operation in target environments.

Selection Notes

Select this component when designing three-phase metering solutions requiring integrated polyphase calculation capabilities. It is suitable for applications needing configurable input impedance options to interface with various current transformers or voltage dividers. Consider its TQFP packaging for surface-mount assembly processes and verify compatibility with standard 3.3 V logic interfaces for data communication.

Part Context

This IC belongs to Renesas' family of energy metering solutions, specifically targeting multi-phase power measurement. It complements other single-phase and polyphase metering devices by offering specialized hardware acceleration for complex three-phase algorithms, reducing the processing load on external microcontrollers in smart grid and utility metering applications.

Replacement Considerations

Check for direct pin-to-pin replacements within the same product family. Verify if alternative models offer updated supply voltages or improved accuracy specifications while maintaining the 48-TQFP form factor.