LTC2909ITS8-5#TRPBF

Supervisors Overview

The LTC2909ITS8-5#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 monitors up to three external inputs for under-voltage, over-voltage, and negative voltage conditions. The device features an adjustable reset delay time ranging from 20ms to 200ms and provides an active-low open-drain reset output. It includes a manual reset input pin and maintains accuracy within 1.5%. The component is housed in an 8-pin TSOT-23 package and supports surface-mount installation.

Supervisors Feature Summary

• Monitors multiple external voltage rails for under-voltage, over-voltage, and negative voltage anomalies
• Provides precise threshold detection with configurable reset timing delays
• Integrates a manual reset input for system control flexibility
• Delivers an active-low open-drain reset signal compatible with standard logic interfaces

Supervisors Applications

• Portable equipment requiring multi-rail power supervision
• Battery-powered systems needing low quiescent current monitoring
• Industrial control units with strict voltage tolerance requirements
• Communication modules requiring reliable brown-out protection

Supervisors Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when sourcing. Confirm the ITS8 variant corresponds to the TSOT-23-8 package type required for your PCB layout. Ensure the operating temperature range meets your environmental specifications. Cross-reference the manufacturer part number with official Analog Devices documentation to avoid counterfeit components. Check for RoHS compliance status if required by your assembly standards.

Supervisors Selection Notes

Select this component when monitoring three distinct voltage lines is necessary within a compact footprint. The adjustable reset delay allows customization for different system startup or fault recovery times. Consider the open-drain output configuration for compatibility with various logic families. Evaluate the 1.5% accuracy against your system's voltage tolerance margins. Ensure the maximum supply voltage does not exceed 6V during operation.

Supervisors Part Context

This part belongs to the LTC2909 family of precision voltage supervisors designed for low-power applications. It serves as a critical protection element in systems where voltage integrity is paramount. The TSOT-23-8 package offers space efficiency compared to larger alternatives. It complements other PMIC solutions by providing dedicated monitoring without complex programming requirements.

Supervisors Replacement Considerations

Direct substitutes include other parts from the LTC2909 series with matching package and electrical characteristics. Verify that any replacement maintains the same triple-input monitoring capability and open-drain output structure. Ensure the new component supports the required manual reset functionality and similar accuracy levels.