LTC2911HDDB-5

Supervisors Overview

The LTC2911HDDB-5 is a precision triple-input voltage monitor manufactured by Analog Devices Inc. It operates within a supply voltage range of up to 6.5 V and features three monitored inputs with thresholds including fixed 3.3 V, adjustable settings, and other configurable levels. The device utilizes an 8-pin DFN (3x2 mm) package for surface-mount installation. Key electrical parameters include a reset delay time of 200 ms and a low operating supply current of 10 µA. It supports open-drain or push-pull outputs depending on the specific suffix configuration, providing robust supervision for multiple power rails in compact designs.

Supervisors Feature Summary

• Provides simultaneous monitoring of three independent input voltages for comprehensive power system oversight.
• Features precise threshold detection capabilities with options for fixed and adjustable voltage references.
• Delivers reliable reset signaling through configurable output stages suitable for various logic families.

Supervisors Applications

• Multi-rail power supply supervision in embedded systems
• Voltage monitoring in portable electronic devices requiring low quiescent current
• Industrial control units needing precise under-voltage and over-voltage protection

Supervisors Procurement Notes

Verify the exact suffix codes against the manufacturer's datasheet to ensure correct output type and threshold configurations. Confirm availability status as distribution channels may report limited stock or discontinuation notices. Ensure the selected package variant matches your PCB footprint requirements. Cross-reference RoHS compliance documentation for regulatory adherence in final assemblies.

Supervisors Selection Notes

Select this component when designing circuits requiring supervision of three distinct voltage lines within a minimal footprint. Consider the 10 µA operating current for battery-powered applications where energy efficiency is critical. Evaluate the available threshold options to determine if fixed or adjustable references meet the design specifications without external resistors.

Supervisors Part Context

This part belongs to the LTC2911 series of precision supervisors from Analog Devices. The series offers multi-channel monitoring solutions designed for space-constrained applications. The HDDB package denotes an 8-lead DFN form factor, distinguishing it from SOT-23 variants in the same family while maintaining similar functional core capabilities for voltage supervision tasks.

Supervisors Replacement Considerations

Direct substitutes include other LTC2911 variants such as LTC2911ITS8-5#TRMPBF for SOT-23-8 packaging or LTC2911HDDB-3#TRPBF for different threshold configurations. Verify pin compatibility and output drive characteristics before swapping between package types or threshold options within the same product line.