LM25056PSQX/NOPB

Overview

The LM25056PSQX/NOPB is a single-phase power meter IC manufactured by Texas Instruments, designed for precise energy measurement applications. It operates within a supply voltage range of 3 V to 17 V and features a 24-WQFN (4x5) package with exposed pad for surface mount installation. The device supports I/O voltages ranging from 0.9 V to 2.1 V and draws a typical supply current of 1.7 mA. It achieves a measurement error of 0.5% and functions reliably across an operating temperature range of -40°C to +125°C. This component is classified under PMIC - Power Management ICs and is AEC-Q100 qualified for automotive reliability standards.

Feature Summary

• Integrated single-phase power metering capability for accurate energy consumption tracking
• High precision measurement performance with a specified error margin of 0.5%
• Wide input supply voltage compatibility supporting 3 V to 17 V operation
• Automotive-grade qualification ensuring reliability in demanding environments

Applications

• Smart electricity meters for residential and commercial utility billing
• Energy monitoring systems in industrial automation equipment
• Power quality analysis devices requiring single-phase measurement
• Embedded power management modules in automotive electronic control units

Procurement Notes

Verify the specific suffix 'PSQX' against the official datasheet to confirm package type and tape-and-reel configuration. Ensure the design accounts for the 24-WQFN thermal requirements and moisture sensitivity level 3 handling procedures. Confirm that the 0.5% accuracy specification meets the system's calibration needs without additional external compensation.

Selection Notes

Select this component when a compact, high-accuracy solution for single-phase power metering is required. It is suitable for designs needing wide supply voltage flexibility and automotive qualification. Consider the 24-WQFN footprint constraints and the need for external sensing components if higher precision beyond the integrated specification is necessary for the target application.

Part Context

This part belongs to the LM25056 family of power management ICs from Texas Instruments. It serves as a specialized integrated circuit for power metering, distinct from general-purpose regulators or controllers. The PSQX variant specifically denotes the WQFN package and reel packaging format, aligning with modern surface-mount assembly processes for high-volume electronics manufacturing.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing board layouts and firmware if considering alternative metering ICs from other manufacturers.