LTC2911HTS8-2#TRPBF

Supervisors Overview

The LTC2911HTS8-2#TRPBF is a supervisory circuit manufactured by Analog Devices Inc., designed for monitoring multiple voltage rails within electronic systems. It features three independent input channels with fixed threshold voltages of 2.5 V and 3.3 V, alongside one adjustable threshold channel. The device utilizes an open-drain output configuration to signal reset conditions. Key operational parameters include a maximum supply voltage of 6.5 V and a standard reset delay time of 200 ms. Packaged in an SMD/SMT SOT-23-8 format, it lacks manual reset, watchdog timer, or battery backup switch functionalities, serving as a compact solution for power-fail comparison and system supervision.

Supervisors Feature Summary

• Monitors up to three distinct input voltage lines simultaneously using dedicated threshold comparators
• Provides system supervision through an open-drain output interface for direct logic integration
• Integrates a fixed 200 ms reset delay mechanism to ensure stable power-up sequencing

Supervisors Applications

• Power-fail detection in multi-rail embedded systems
• Voltage supervision for microcontroller power domains
• System reset generation in portable electronics

Supervisors Procurement Notes

Verify the exact suffix designation on official documentation, as the provided model references TRPBF while source data indicates TRMPBF availability. Confirm package compatibility and pinout alignment during sourcing. Check current distribution status due to potential limited supply constraints. Ensure compliance with RoHS specifications required for modern assembly processes. Validate that the specific threshold configurations match the target application requirements before procurement.

Supervisors Selection Notes

Select this component when simultaneous monitoring of three voltage rails is required within a minimal footprint. The inclusion of both fixed and adjustable thresholds offers flexibility for diverse rail architectures. Consider the open-drain output capability for interfacing with various logic families. Evaluate the 200 ms reset delay against system startup timing requirements. Ensure the 6.5 V maximum supply rating accommodates the highest monitored voltage level without exceeding limits.

Supervisors Part Context

This part belongs to the LTC2911 series of supervisory circuits from Analog Devices, focusing on multi-channel voltage monitoring. It complements other PMIC solutions by providing dedicated reset generation capabilities. The SOT-23-8 package aligns with space-constrained design trends. It serves as a specialized tool for ensuring system reliability through precise voltage threshold detection and controlled reset assertion.

Supervisors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify functional equivalence regarding threshold values and package dimensions if considering alternative sources.