NCP301LSN31T1G

Supervisors Overview

The NCP301LSN31T1G is a supervisory circuit manufactured by onsemi, functioning as an analog under-voltage detector with a fixed threshold of 3.1V. It provides a low-active reset signal via an open-drain output in a 5-pin TSOP package. Designed for portable microprocessor systems, it supports power supply monitoring to ensure extended battery life through ultra-low current consumption.

Supervisors Feature Summary

• Ultra-low current consumption designed to extend battery life in portable systems
• Fixed 3.1V under-voltage detection threshold for precise power monitoring
• Low-active open-drain reset output compatible with various logic families

Supervisors Applications

• Reset controller for portable microprocessor-based systems
• Power supply supervision in battery-operated devices
• Voltage monitoring for simple clock oscillators

Supervisors Procurement Notes

Verify component authenticity and datasheet alignment due to potential obsolescence status. Confirm RoHS compliance and packaging specifications against the latest manufacturer documentation. Ensure the specific suffix matches design requirements as ordering suffixes may not alter function but indicate package or tape/reel variations.

Supervisors Selection Notes

Select this component when a fixed 3.1V threshold is required for under-voltage detection. The open-drain output necessitates an external pull-up resistor. Consider the operating temperature range and package constraints during PCB layout. Verify compatibility with the system's voltage domain and reset timing requirements.

Supervisors Part Context

Part of the NCP301 series, representing second-generation ultra-low current voltage detectors. This series is optimized for applications where minimizing quiescent current is critical for maintaining operational longevity in battery-powered environments.

Supervisors Replacement Considerations

Check for direct substitutes within the NCP301 family with different thresholds. Verify pinout compatibility if considering alternative packages. Consult manufacturer notices for end-of-life notifications and recommended replacement strategies.