LTC2909CTS8-2.5#TRPBF

Supervisors Overview

The LTC2909CTS8-2.5#TRPBF is a precision triple/dual input voltage monitor manufactured by Analog Devices Inc. It operates within a supply voltage range of 1.7V to 6V and consumes a typical quiescent current of 50µA. The device features three independent monitoring inputs capable of detecting under-voltage, over-voltage, and negative voltage conditions. It provides an open-drain reset output with a fixed 200ms reset delay time. The component is housed in an 8-pin SOT-23 package and is rated for operation between 0°C and +70°C.

Supervisors Feature Summary

• Monitors three independent voltage inputs for under-voltage, over-voltage, and negative voltage faults
• Provides a single open-drain active-low reset signal upon fault detection
• Features a fixed 200ms reset delay to prevent false triggering during transient events

Supervisors Applications

• Monitoring multiple power rails in embedded systems
• Supervising battery-powered devices for low voltage conditions
• Industrial control system power integrity verification

Supervisors Procurement Notes

Verify the specific suffix TRPBF indicates tape and reel packaging when sourcing. Confirm the C-grade temperature rating aligns with your operational environment requirements. Ensure the 2.5V threshold setting matches your target voltage levels. Cross-reference the datasheet for exact pinout configurations before PCB layout finalization.

Supervisors Selection Notes

Select this component when simultaneous monitoring of three distinct voltage lines is required within a compact footprint. The fixed threshold configuration simplifies design compared to adjustable variants. Consider the 50µA quiescent current for battery life calculations. Verify that the open-drain output interface is compatible with the downstream logic or microcontroller reset input.

Supervisors Part Context

This part belongs to the LTC2909 family of precision voltage monitors designed for applications requiring reliable supervision of multiple power sources. It serves as a critical safety component in systems where power instability could lead to data corruption or hardware damage. The device integrates high-accuracy comparators and delay circuits into a small surface-mount package.

Supervisors Replacement Considerations

LT3060MPTS8-2.5#TRMPBF is listed as an available substitute.