CS5464-ISZR

Overview

The CS5464-ISZR is a single-phase energy metering integrated circuit manufactured by Cirrus Logic Inc. It features a three-channel architecture designed for precise power and energy measurement applications. The device utilizes a sigma-delta analog-to-digital converter structure to process input signals. It operates within a supply voltage range of 4.75 V to 5.25 V and draws a typical supply current of 2.9 mA. The component is housed in a 28-SSOP package with a width of 5.30 mm. It supports an SPI interface for digital communication and data output. The operational temperature range extends from -40°C to +85°C, ensuring reliability in industrial environments.

Feature Summary

• Three-channel input architecture for comprehensive single-phase power monitoring
• Integrated sigma-delta ADC for high-resolution signal conversion
• SPI digital interface for configuration and data retrieval
• Low-power operation suitable for battery or mains-powered metering devices

Applications

• Single-phase electricity meters
• Power quality analyzers
• Smart plug energy monitoring systems
• Industrial power management units

Procurement Notes

Verify the specific suffix 'ISZR' indicates tape-and-reel packaging versus 'ISZ' tube packaging when sourcing. Confirm RoHS compliance status as per the latest manufacturer documentation. Check for obsolescence notices or production change notifications (PCN) affecting availability. Ensure the supplier provides valid traceability documents for mixed-signal ICs.

Selection Notes

Select this component for single-phase applications requiring three-channel measurement capabilities. Compare against the CS5461A family if fewer channels are sufficient. Verify that the 28-SSOP footprint matches the PCB layout constraints. Ensure the system design accommodates the required 4.75 V to 5.25 V supply voltage range.

Part Context

This part belongs to the Cirrus Logic CS546x series of energy metering ICs. It is related to the CS5464-ISZ variant, differing primarily in packaging format. The series is designed for low-cost, high-precision energy measurement solutions. Other family members include the CS5461A and CS5463K variants.

Replacement Considerations

The CS5464-ISZ is a direct pin-compatible alternative with different packaging. The CS5461AK-ISZ may serve as a substitute if channel count requirements differ. Verify functional equivalence before substitution.