LTC2945HUD-1#TRPBF

Power Supply Controllers, Monitors Overview

The LTC2945HUD-1#TRPBF is a rail-to-rail system monitor manufactured by Analog Devices Inc. It measures current, voltage, and power with an operating range of 2.7V to 80V. The device includes an on-board ADC and I2C interface for data communication. It features a shunt regulator for supplies above 80V to allow flexibility in input supply selection. The component is housed in a 12-pin QFN EP package and is supplied in tape and reel format.

Power Supply Controllers, Monitors Feature Summary

• Rail-to-rail system monitoring capability for current, voltage, and power measurements
• Integrated on-board analog-to-digital converter (ADC) for signal processing
• I2C serial interface for digital communication and configuration
• Built-in shunt regulator supporting input supplies exceeding 80V

Power Supply Controllers, Monitors Applications

• -48V system power monitoring using low side sensing
• Wide range dual supply monitoring
• Power monitoring in harsh environments with high transient tolerance
• Bidirectional current and power monitoring applications

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the HUD variant specifications against the official Analog Devices datasheet to ensure compatibility with high-voltage shunt regulator requirements. Check regional availability as distribution status may vary. Ensure the 12-pin QFN EP package footprint matches the design layout.

Power Supply Controllers, Monitors Selection Notes

Select this component for applications requiring wide input voltage ranges up to 80V. The integrated shunt regulator allows operation with higher supply voltages without external regulation. Consider the I2C interface for system integration and the on-board ADC for precise measurement needs. Verify the automotive-grade or industrial temperature range requirements against the specific HUD variant specifications.

Power Supply Controllers, Monitors Part Context

The LTC2945 series comprises rail-to-rail system monitors designed for comprehensive power management. The HUD-1 variant specifically addresses high-voltage applications through its internal shunt regulator. This part belongs to the broader family of power supply controllers and monitors from Analog Devices, offering integrated sensing and digital output capabilities.

Power Supply Controllers, Monitors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Analog Devices for direct replacements or cross-reference options based on specific electrical and package requirements.