LTC2909CTS8-3.3#TRPBF

Supervisors Overview

The LTC2909CTS8-3.3#TRPBF is a precision voltage monitor from Analog Devices Inc., designed for supervising multiple power rails in compact systems. It features three monitored inputs capable of detecting under-voltage, over-voltage, and negative voltage conditions. The device operates within a supply voltage range of up to 6 V and draws a typical quiescent current of 50 uA. It provides an open-drain reset output with a fixed 200 ms reset delay time. The component is housed in an SOT-23-8 package and supports industrial temperature ranges.

Supervisors Feature Summary

• Monitors three independent voltage inputs for under-voltage, over-voltage, and negative voltage faults
• Provides a low-active open-drain reset signal with selectable timeout characteristics
• Operates with low quiescent current consumption suitable for battery-powered applications

Supervisors Applications

• Portable electronic devices requiring multi-rail power supervision
• Industrial control systems monitoring critical voltage levels
• Communication equipment ensuring stable power delivery

Supervisors Procurement Notes

Verify the exact suffix against manufacturer documentation to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints for SOT-23-8 packages. Cross-reference datasheet specifications for threshold voltages and reset delays to match system requirements precisely before procurement.

Supervisors Selection Notes

Select this component when simultaneous monitoring of three distinct voltage rails is required in a minimal footprint. Consider the fixed 200 ms reset delay and open-drain output configuration for interface compatibility with downstream logic circuits. Evaluate the 50 uA quiescent current against total system power budgets for efficiency optimization.

Supervisors Part Context

This part belongs to the LTC2909 series of precision triple/dual input monitors. It shares functional similarities with other members like the LTC2909IDDB variants but differs in package style and specific electrical parameters. The series is designed for robust power management in space-constrained environments.

Supervisors Replacement Considerations

Direct substitutes include other LTC2909 variants such as LTC2909IDB or LTC2909ITS8, provided pinout and package compatibility are verified. Alternative monitors from other manufacturers may require schematic redesign due to differing reset logic or threshold accuracies.