LTC2911CDDB-4

Supervisors Overview

The LTC2911CDDB-4 is a supervisory circuit manufactured by Analog Devices Inc., designed for monitoring multiple power rails in complex electronic systems. It integrates three voltage input monitors, two current sense measurement channels, and an on-board temperature sensor to provide comprehensive telemetry data. The device operates within a supply voltage range of 1.1V to 5V and features a factory-set reset threshold. Packaged in an 8-DFN (3x2) surface-mount format, it supports industrial operating temperatures from -40°C to 85°C. This component serves as a robust power-system supervisor suitable for safety-critical applications requiring precise voltage and environmental monitoring.

Supervisors Feature Summary

• Integrates three voltage input monitors, two current sense measurement channels, and an on-board temperature sensor for comprehensive system telemetry.
• Provides robust power-system supervision with a factory-set reset threshold for voltages ranging from 1.1V to 5V.
• Supports operation in safety-critical automotive applications with extended industrial temperature range capabilities.

Supervisors Applications

• Safety-critical automotive power system supervision
• Multi-rail voltage monitoring in embedded systems
• Environmental and current telemetry in industrial equipment

Supervisors Procurement Notes

Verify the specific suffix and package variant when ordering, as the LTC2911 series includes multiple pinout and threshold configurations. Confirm RoHS compliance status with the supplier, as some listings indicate non-compliant variants exist. Ensure the selected part matches the required DFN-8 footprint and thermal specifications for your PCB design. Cross-reference the manufacturer's latest datasheet to confirm availability and lifecycle status before finalizing procurement plans.

Supervisors Selection Notes

Select this component when simultaneous monitoring of multiple voltage rails, current levels, and temperature is required in a single package. The factory-set reset threshold simplifies design compared to adjustable counterparts. Consider the 8-DFN package size for space-constrained designs. Verify that the 1.1V to 5V input range covers all monitored rails. Ensure the industrial temperature rating meets the operational environment requirements.

Supervisors Part Context

The LTC2911 belongs to Analog Devices' line of precision supervisory circuits. It is part of a family that offers various channel counts and package options. The CDDB-4 variant specifically denotes the commercial temperature grade and the DFN-8 package style. This series is engineered for high reliability in demanding environments, distinguishing itself through integrated sensing capabilities beyond simple voltage supervision.

Supervisors Replacement Considerations

Check for other LTC2911 variants with different suffixes if the exact threshold or package does not match. Verify pin compatibility before substituting with similar multi-channel supervisors from other manufacturers. Ensure any replacement maintains the same voltage range and temperature specifications.