LTC2918IMS-B1#PBF

Supervisors Overview

The LTC2918IMS-B1#PBF is a low voltage supervisor from Analog Devices, operating within a supply range of 1.5V to 5.5V and consuming only 30μA quiescent current. It features 27 selectable thresholds with ±1.5% accuracy over the full temperature range. The device includes an adjustable watchdog timer and a manual reset input. The B1 suffix indicates a windowed watchdog feature for high-reliability applications. It operates in MSOP-10 packages across -40°C to +125°C.

Supervisors Feature Summary

• Provides 27 internally programmed selectable voltage thresholds without external resistors
• Includes a separate manual reset input for simple push-button interface
• Features a windowed watchdog timer designed for high-reliability applications

Supervisors Applications

• Automotive electronic systems requiring operation up to 125°C
• High-reliability industrial monitoring circuits
• Low voltage power management supervision

Supervisors Procurement Notes

Verify the specific B1 suffix configuration to ensure the windowed watchdog feature is present, as standard versions lack this capability. Confirm package availability and lead times directly with authorized distributors, as stock levels fluctuate. Ensure the selected variant matches the required threshold selection logic and manual reset requirements for your design.

Supervisors Selection Notes

Select this component when a manual reset input and high-reliability windowed watchdog are required. Compare against the LTC2917 if the manual reset pin is unnecessary or if different tolerance options are preferred. Verify that the 30μA quiescent current meets system power constraints and that the 1.5V to 5.5V operating range covers all monitored rails.

Supervisors Part Context

This part belongs to the LTC2917/LTC2918 family of low voltage supervisors. The IMS-10 designation indicates a 10-lead MSOP package. The B1 suffix specifically denotes the inclusion of a windowed watchdog timer, distinguishing it from standard variants. These devices are designed for robust system monitoring in demanding environments.

Supervisors Replacement Considerations

LTC2917IMS-B1#PBF lacks the manual reset input found on the LTC2918. LTC2918IMS#PBF lacks the windowed watchdog feature of the B1 version. Verify functional compatibility before substitution.