LM25056APSQE/NOPB

Overview

The LM25056APSQE/NOPB is a single-phase power meter IC from Texas Instruments, designed for precise energy monitoring in power management systems. It operates within a supply voltage range of 3 V to 17 V and features an accuracy of 0.5%. The device supports I/O voltages between 0.9 V and 2.1 V with a supply current of 1.7 mA. It is housed in a 24-WQFN (4x5) package with exposed pad, suitable for surface mount installation. The component functions reliably across an extended temperature range from -40°C to +125°C and includes PMBus interface capabilities for system communication.

Feature Summary

• Integrates high-accuracy single-phase power metering with 0.5% measurement error for reliable energy data collection.
• Supports digital communication via PMBus interface for configuration and real-time monitoring.
• Operates with low supply current of 1.7 mA to minimize standby power consumption.
• Features robust thermal performance with an exposed pad design for efficient heat dissipation.

Applications

• Smart metering systems requiring precise single-phase energy measurement
• Industrial power monitoring equipment
• White goods and home appliance energy management modules

Procurement Notes

Verify the specific suffix 'APSQE' to confirm automotive qualification and PMBus compatibility, as standard variants may differ. Ensure the 24-WQFN footprint matches your PCB layout constraints. Confirm RoHS compliance status through official manufacturer documentation before finalizing procurement specifications.

Selection Notes

Select this component when precise single-phase power metering is required alongside digital control capabilities. The 0.5% accuracy meets stringent metrology standards. Consider the 24-WQFN package size for space-constrained designs. Verify that the 3 V to 17 V supply range aligns with your system's available rails and that PMBus integration is supported by the host controller.

Part Context

This part belongs to the LM25056A family of power management ICs, specifically engineered for power metering applications. It complements other Texas Instruments solutions by providing integrated sensing and digital communication in a compact form factor. The device is distinct from switching controllers like the LM25066 or LM25117, focusing instead on accurate energy measurement rather than power conversion control.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult Texas Instruments documentation for potential cross-references or updated revisions within the LM25056 series.