LTC2919IMS-2.5#PBF

Supervisors Overview

The LTC2919IMS-2.5#PBF is a precision supervisory circuit manufactured by Analog Devices Inc., designed for monitoring multiple voltage rails in embedded systems. It features three independent input channels 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 maintains an accuracy of 1.5%. It utilizes an MSOP-10 surface-mount package and provides an open-drain output with a fixed reset delay time of 200 ms. The component functions reliably across an industrial temperature range from -40°C to +85°C while consuming only 50 µA of operating current.

Supervisors Feature Summary

• Monitors three independent inputs for under-voltage, over-voltage, and negative voltage anomalies
• Provides precise threshold detection with specified accuracy levels
• Delivers open-drain reset signaling with defined delay characteristics

Supervisors Applications

• Multi-rail power supply supervision in industrial equipment
• System integrity monitoring in embedded computing platforms
• Voltage tracking in battery-powered portable devices

Supervisors Procurement Notes

Verify the specific suffix #PBF indicates lead-free packaging compliance when sourcing. Confirm the IMS variant matches the required MSOP-10 footprint for PCB layout compatibility. Ensure the 2.5V threshold designation aligns with the target monitoring rail specifications. Check regional distribution availability as stock status may vary by region.

Supervisors Selection Notes

Select this component when simultaneous monitoring of three distinct voltage domains is required without external comparator logic. The low quiescent current makes it suitable for energy-constrained designs. Verify that the open-drain output interface is compatible with the downstream microcontroller or system controller input requirements.

Supervisors Part Context

This part belongs to the LTC2919 series of multi-channel voltage supervisors. It shares functional similarities with other variants in the family, such as the LTC2919CMS-3.3#TRPBF, which offers different threshold options and tape-and-reel packaging. The IMS-2.5#PBF specifically targets applications requiring fixed 2.5V reference monitoring in compact surface-mount form factors.

Supervisors Replacement Considerations

Direct substitutes include other LTC2919 variants with adjusted thresholds or packaging formats. Cross-reference pinout compatibility before replacing with generic multi-channel supervisors. Ensure replacement parts maintain equivalent accuracy and reset delay specifications.