LTC2911CDDB-4#TRMPBF

Supervisors Overview

The LTC2911CDDB-4#TRMPBF is a precision triple supply monitor and power-fail comparator manufactured by Analog Devices Inc. It operates within an ambient temperature range of 0°C to 70°C and utilizes an 8-WFDFN exposed pad package for surface mount installation. The device features a low operating supply current of 10 µA, making it suitable for battery-powered applications. It provides three monitored voltage channels with specific threshold configurations, including fixed thresholds at 3.086V and 4.675V, alongside one adjustable channel. The output stage is configured as a push-pull or totem pole driver with active-low reset functionality.

Supervisors Feature Summary

• Integrates a high-accuracy triple supply monitor with a dedicated power-fail comparator in a single compact package.
• Features a push-pull output stage that eliminates the need for external pull-up resistors, simplifying circuit design.
• Offers configurable monitoring thresholds, including two fixed voltage references and one fully adjustable input channel.

Supervisors Applications

• Portable electronic devices requiring efficient multi-rail power management
• Battery-operated systems needing precise under-voltage detection
• Industrial control units utilizing multiple voltage domains

Supervisors Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix matches the required pinout and electrical characteristics. Ensure storage conditions comply with moisture sensitivity level requirements to prevent package damage during soldering processes.

Supervisors Selection Notes

Select this component when simultaneous monitoring of three distinct voltage rails is required alongside a power-fail signal. The push-pull output is advantageous for driving logic inputs directly without additional passive components. Consider the thermal performance of the DFN package relative to the expected ambient operating environment.

Supervisors Part Context

This part belongs to the LTC2911 series of precision supply monitors. It shares functional similarities with other members like the LTC2911ITS8 variants but differs in package type and specific threshold settings. The CDDB-4 designation indicates the commercial temperature grade and specific resistor network configuration for the monitored voltages.

Supervisors Replacement Considerations

LTC2911IDDB-4#TRMPBF offers identical functionality with an extended industrial temperature range (-40°C to 85°C). Verify if the wider temperature specification is necessary for the target application environment before substituting.