LTC2945CMS-1#PBF

Power Supply Controllers, Monitors Overview

The LTC2945CMS-1#PBF is a wide-range I2C power monitor manufactured by Analog Devices Inc. It features a rail-to-rail input range of 0V to 80V, enabling the measurement of current, voltage, and power across diverse supply levels. The device integrates an internal shunt regulator designed for supplies exceeding 80V, providing flexibility in input power selection. This component supports comprehensive system monitoring within industrial and automotive applications requiring precise energy tracking.

Power Supply Controllers, Monitors Feature Summary

• Rail-to-rail input capability spanning from 0V to 80V for broad voltage coverage
• Integrated internal shunt regulator accommodates input supplies above 80V
• Simultaneous measurement of current, voltage, and total power consumption

Power Supply Controllers, Monitors Applications

• Power monitoring in -48V telecommunications systems
• Energy tracking in harsh environment industrial equipment
• System supervision in automotive electronics

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix designation to ensure compatibility with required packaging and temperature grades. Confirm that the integrated shunt regulator meets the voltage requirements for your specific input supply configuration. Cross-reference the datasheet revision to validate electrical characteristics against your design specifications before finalizing procurement.

Power Supply Controllers, Monitors Selection Notes

Select this component when a single device must handle both low-voltage signals and high-voltage inputs up to 80V without external level shifting. The integrated shunt regulator simplifies designs involving supplies exceeding 80V. Ensure the I2C interface aligns with the host controller's communication protocol and address allocation constraints.

Power Supply Controllers, Monitors Part Context

This part belongs to the LTC2945 series of wide-range I2C power monitors. It shares core functionality with variants like the LTC2945HUD and LTC2945CUD, differing primarily in package type and thermal performance ratings. The CMS-1 variant specifically denotes a commercial temperature grade MSOP-16 package configuration.

Power Supply Controllers, Monitors Replacement Considerations

Direct substitutes include other LTC2945 series variants such as LTC2945HUD or LTC2945CUD, provided the package form factor and temperature range requirements are compatible with the existing PCB layout and environmental conditions.