LTC2911IDDB-1#TRPBF

Supervisors Overview

The LTC2911IDDB-1#TRPBF is a low-power, high-accuracy triple supply monitor manufactured by Analog Devices Inc. It features three independent voltage monitoring channels with fixed thresholds of 3.086V and 4.675V, plus one adjustable channel. The device includes a power-fail comparator and a push-pull/totem-pole reset output that is active low. The reset timeout duration can be selected using an external capacitor. It operates within a temperature range of -40°C to +85°C and consumes only 10 µA of operating supply current.

Supervisors Feature Summary

• Triple voltage monitoring capability for simultaneous supervision of multiple power rails
• Integrated power-fail comparator for system status indication
• Configurable reset timeout period via external capacitor selection
• Low quiescent current consumption for energy-efficient operation

Supervisors Applications

• Multi-rail power supply supervision in embedded systems
• Industrial control unit power management
• Telecommunications equipment voltage monitoring
• Portable electronic devices requiring low-power oversight

Supervisors Procurement Notes

Verify the specific suffix IDDB-1#TRPBF against official Analog Devices documentation to confirm package type (DFN-8) and revision. Ensure compatibility with required threshold voltages (3.086V, 4.675V, adjustable). Check availability status as distribution may vary. Confirm RoHS compliance and lead times directly with authorized distributors or the manufacturer before ordering.

Supervisors Selection Notes

Select this component when precise supervision of three distinct voltage levels is required alongside a power-fail signal. The adjustable threshold offers flexibility for non-standard rail voltages. Consider the DFN-8 package constraints for PCB layout. Verify that the 10 µA supply current meets system power budgets. Ensure the external capacitor for reset timing fits within available board space and tolerance requirements.

Supervisors Part Context

This part belongs to the LTC2911 series of supervisory circuits from Analog Devices. The series focuses on providing accurate monitoring for complex power architectures. The IDDB-1 variant specifically denotes the industrial temperature grade and the DFN-8 surface-mount package configuration. It is designed to replace discrete monitoring solutions with a single integrated IC.

Supervisors Replacement Considerations

Direct replacements include other LTC2911 variants with different packages or thresholds, such as LTC2911ITS8-1#TRMPBF. Cross-referencing pinouts and electrical characteristics is essential. Ensure any substitute maintains the same reset polarity and power-fail functionality.