LTC2909ITS8-2.5#TRMPBF

Supervisors Overview

The LTC2909ITS8-2.5#TRMPBF is a precision supervisory circuit manufactured by Analog Devices Inc., designed for monitoring multiple voltage rails in compact systems. It features three independent input channels capable of detecting under-voltage, over-voltage, and negative voltage conditions. The device operates with a supply voltage range from -0.3 V to 6 V and includes an adjustable reset timeout. It provides manual reset functionality and outputs open-drain signals compatible with standard logic interfaces. Packaged in a TSOT-23-8 surface-mount case, it supports operation across industrial temperature ranges.

Supervisors Feature Summary

• Monitors up to three independent voltage inputs for under-voltage, over-voltage, and negative voltage faults
• Includes manual reset capability for system recovery control
• Features adjustable or selectable reset timeout delays
• Provides open-drain output signals for flexible interface integration

Supervisors Applications

• Multi-rail power supply supervision in embedded systems
• Battery backup switching and monitoring circuits
• Industrial control board voltage integrity verification
• Communication equipment power management units

Supervisors Procurement Notes

Verify the specific suffix #TRMPBF confirms tape-and-reel packaging when sourcing. Confirm the ITS8 grade matches required operating temperature specifications. Ensure the 2.5V threshold designation aligns with target monitoring levels. Check current distributor availability as stock status may vary. Validate RoHS compliance documentation prior to final procurement approval.

Supervisors Selection Notes

Select this component when precise multi-input voltage monitoring is required in space-constrained designs. The TSOT-23-8 package offers a small footprint suitable for dense PCB layouts. Consider the adjustable reset timeout feature if specific delay requirements exist. Verify that the open-drain output configuration meets downstream logic level needs. Evaluate the -40°C to +85°C operating range against environmental constraints.

Supervisors Part Context

This part belongs to the LTC2909 family of precision dual and triple input monitors. These devices are engineered for applications requiring reliable fault detection across multiple power domains. The series integrates high-accuracy comparators with configurable reset logic. Analog Devices utilizes this architecture to provide robust supervision solutions for critical infrastructure and consumer electronics.

Supervisors Replacement Considerations

Public confirmed substitute part numbers: LTC2909ITS8-3.3#TRMPBF, LTC2909CTS8-3.3#TRMPBF, LTC2909IDDB-5#TRMPBF.