LTC2946HMS-1#PBF

Overview

The LTC2946HMS-1#PBF is a single-phase energy monitor IC manufactured by Analog Devices Inc. It operates within a supply voltage range of 2.7 V to 100 V and features a measurement error of 0.5%. The device draws 900 µA of supply current and functions across an operating temperature range of -40°C to 125°C. It is housed in a 16-lead MSOP package with surface mount installation. This component serves as a rail-to-rail system monitor capable of measuring current, voltage, power, charge, and energy.

Feature Summary

• Rail-to-rail system monitoring capability for comprehensive electrical parameter tracking
• Integrated shunt regulator designed to handle supply voltages exceeding 100 V
• High accuracy measurement performance with specified low error margins
• Supports bidirectional power monitoring with energy and charge accumulation

Applications

• Bidirectional power monitoring in forward paths with energy and charge tracking
• Wide range negative power, charge, and energy monitoring for -4V to -500V supplies
• Power, charge, and energy monitoring in harsh environments using INTVCC shunt regulators
• Rail-to-rail power, charge, and energy monitoring systems

Procurement Notes

Verify the specific suffix HMS-1 against official Analog Devices documentation to confirm functional differences from standard variants. Ensure the #PBF designation aligns with RoHS3 compliance requirements. Confirm the 16-MSOP package type matches your PCB footprint specifications. Validate that the 2.7 V to 100 V operating range suits your system's voltage constraints. Check for any recent PCN updates regarding material or assembly changes.

Selection Notes

Select this component when precise single-phase energy and charge monitoring is required for high-voltage applications up to 100 V. The integrated shunt regulator makes it suitable for systems experiencing transients above 100 V. Consider the 16-MSOP package for space-constrained surface-mount designs. Verify compatibility with I2C interface speeds if utilizing the 10 kHz option. Ensure the -40°C to 125°C temperature range meets environmental demands.

Part Context

The LTC2946 series comprises rail-to-rail system monitors designed for accurate measurement of current, voltage, power, charge, and energy. The HMS-1 variant specifically supports bidirectional power monitoring and includes an internal shunt regulator for high-voltage tolerance. It is part of Analog Devices' portfolio for advanced power management and energy metering solutions.

Replacement Considerations

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