LTC2909CDDB-5#TRPBF

Supervisors Overview

The LTC2909CDDB-5#TRPBF is a precision triple/dual input under-voltage, over-voltage, and negative voltage monitor manufactured by Analog Devices Inc. It operates within a supply voltage range of up to 6 V and features an open-drain output with low-active reset functionality. The device provides adjustable threshold voltages and includes a programmable reset delay time of 200 ms. Designed for surface-mount installation in DFN-8 packages, it supports industrial temperature ranges from -40°C to +85°C with 1.5% accuracy.

Supervisors Feature Summary

• Monitors three inputs for under-voltage, over-voltage, and negative voltage conditions simultaneously
• Features adjustable threshold voltages for flexible system configuration
• Provides low-active open-drain reset output with programmable delay

Supervisors Applications

• Multi-rail power supply supervision in embedded systems
• Battery-powered equipment requiring negative voltage detection
• Industrial control units needing precise voltage monitoring

Supervisors Procurement Notes

Verify the specific suffix TRPBF indicates tape-and-reel packaging when ordering. Confirm the C-grade temperature rating aligns with your operational environment requirements. Ensure the DFN-8 package footprint matches your PCB layout design before finalizing procurement decisions.

Supervisors Selection Notes

Select this component when simultaneous monitoring of multiple rails including negative voltages is required. The adjustable thresholds allow customization without external resistors. Consider the DFN-8 package size constraints and the 6 V maximum supply limit during circuit design integration.

Supervisors Part Context

This part belongs to the LTC2909 series of supervisory circuits designed for multi-input voltage monitoring applications. It complements other Analog Devices PMIC solutions by providing dedicated fault detection capabilities. The series supports various package options to accommodate different board space requirements.

Supervisors Replacement Considerations

LTC2909IDDB-5#TRMPBF offers identical functionality with industrial temperature grading (-40°C to +85°C) compared to the commercial grade variant.