LTC2919CMS-2.5#TRPBF

Supervisors Overview

The LTC2919CMS-2.5#TRPBF is a precision voltage supervisor manufactured by Analog Devices Inc., designed for monitoring multiple power rails in compact electronic systems. This specific variant features three monitored inputs with a fixed threshold of 2.5V, providing accurate under-voltage and over-voltage detection capabilities. It operates within a supply voltage range up to 6V and draws a low quiescent current of 50µA, making it suitable for battery-powered applications. The device utilizes an open-drain output configuration and offers a reset delay time of 200ms to ensure stable system recovery. Packaged in a space-saving 10-MSOP format, it supports surface-mount installation and functions reliably across industrial temperature ranges.

Supervisors Feature Summary

• Provides simultaneous monitoring of three independent voltage inputs for comprehensive power rail supervision
• Features high accuracy voltage threshold detection to identify under-voltage and over-voltage conditions
• Utilizes an open-drain output interface compatible with various logic families for flexible system integration

Supervisors Applications

• Portable consumer electronics requiring multi-rail power management
• Industrial control systems needing reliable voltage supervision
• Battery-operated devices with strict power consumption constraints

Supervisors Procurement Notes

Verify the exact part number suffix against official Analog Devices documentation to confirm package type and temperature rating. Ensure compatibility with your board layout regarding the MSOP-10 footprint. Check for any recent product change notices that may affect material composition or marking. Confirm availability through authorized distributors as supply levels can fluctuate. Validate RoHS compliance status if required for your specific manufacturing standards.

Supervisors Selection Notes

Choose this component when precise monitoring of three distinct voltage lines is necessary within a limited board area. The fixed 2.5V threshold suits applications where standard logic levels require supervision. Consider the 50µA quiescent current for efficiency-critical designs. The open-drain output allows easy interfacing with microcontrollers or other digital logic without additional level shifting components.

Supervisors Part Context

This device belongs to the LTC2919 family of precision supervisors from Analog Devices. The series includes variants with adjustable thresholds and different input counts. The CMS-2.5 designation indicates the commercial temperature grade and the specific 2.5V fixed threshold setting. The #TRPBF suffix denotes tape-and-reel packaging with lead-free finish, aligning with modern assembly requirements.

Supervisors Replacement Considerations

Direct substitutes include other LTC2919 variants such as LTC2919IMS-2.5#PBF or LTC2919CMS-3.3#TRPBF, depending on threshold requirements. Verify pinout compatibility before substitution. Alternative supervisory ICs from other manufacturers may require circuit redesign due to differing output structures or timing characteristics.