LTC2945HMS-1#PBF

Power Supply Controllers, Monitors Overview

The LTC2945HMS-1#PBF is a rail-to-rail system monitor manufactured by Analog Devices Inc., designed for measuring current, voltage, and power. It operates within a wide supply range of 2.7V to 80V and features an integrated shunt regulator for input supplies exceeding 80V, allowing flexible selection of input power sources. The device utilizes an I2C interface for communication and is housed in a 12-pin MSOP package. It consumes 800 µA of operating supply current and is classified under PMIC - Power Management ICs.

Power Supply Controllers, Monitors Feature Summary

• Rail-to-rail system monitoring capability for comprehensive measurement of current, voltage, and power
• Wide operating voltage range from 2.7V to 80V with integrated shunt regulator for higher voltage flexibility
• I2C digital interface for data access and configuration

Power Supply Controllers, Monitors Applications

• -48V system power monitoring using low-side sensing
• Power monitoring in harsh environments utilizing INTVCC shunt regulator to tolerate high-voltage transients
• Wide-range dual supply monitoring applications

Power Supply Controllers, Monitors Procurement Notes

Verify availability status as the component may be subject to limited supply or factory special order conditions. Confirm RoHS compliance details and ensure the specific suffix matches the required packaging format. Cross-reference the manufacturer part number with official Analog Devices documentation to validate authenticity and technical specifications before procurement.

Power Supply Controllers, Monitors Selection Notes

Select this component for applications requiring precise monitoring of current, voltage, and power across a wide voltage spectrum. The integrated shunt regulator supports inputs above 80V, making it suitable for systems with varying supply constraints. Ensure the design accommodates the 12-pin MSOP package and I2C interface requirements for proper integration into the target circuit architecture.

Power Supply Controllers, Monitors Part Context

This part belongs to the LTC2945 series of wide-range I2C power monitors. It is functionally related to variants such as the LTC2945HUD-1 and LTC2946HMS-1, which share similar monitoring capabilities but differ in channel count and package type. The series is categorized under current and power monitors and regulators within Analog Devices' portfolio.

Power Supply Controllers, Monitors Replacement Considerations

Consider the LTC2945HMS-1#TRPBF for tape-and-reel packaging alternatives. Evaluate the LTC2945HUD-1#PBF if QFN EP packaging is preferred over MSOP. Verify functional compatibility with the LTC2946HMS-1#PBF if single-channel current sense amplifier functionality is sufficient.