LTC2917HMS-B1#PBF

Supervisors Overview

The LTC2917HMS-B1#PBF is a low voltage single-supply monitor from Analog Devices, operating within a supply range of 1.5V to 5.5V with a quiescent current of 30μA. It features 27 selectable thresholds via three state inputs and includes an adjustable watchdog timer. The B1 suffix indicates a windowed watchdog feature for high-reliability applications. Threshold accuracy is guaranteed at ±1.5% over the full temperature range. The device utilizes glitch filtering to ensure reliable reset operation without false triggering.

Supervisors Feature Summary

• Configurable threshold selection using internal programming inputs
• Windowed watchdog timer functionality for enhanced reliability
• Glitch filtering prevents false reset triggers
• Adjustable timeout settings without external components

Supervisors Applications

• Automotive electronic systems requiring high-temperature operation
• Industrial control units needing precise voltage supervision
• High-reliability embedded systems with watchdog requirements

Supervisors Procurement Notes

Verify the specific B1 suffix configuration to confirm the presence of the windowed watchdog feature, as this distinguishes it from standard variants. Ensure the MSOP-10 package compatibility matches your PCB layout constraints. Confirm RoHS compliance status through official manufacturer documentation before finalizing procurement plans.

Supervisors Selection Notes

Select this component when design requirements demand multiple fixed voltage thresholds without external resistor networks. The integrated windowed watchdog simplifies circuit design for safety-critical applications. Consider the 30μA quiescent current for battery-powered or energy-efficient system designs where power consumption is a primary constraint.

Supervisors Part Context

This part belongs to the LTC2917 family of low voltage supervisors. It shares core monitoring capabilities with other variants in the series but is distinguished by its specific threshold configurations and the inclusion of the windowed watchdog timer. The family supports automotive-grade temperature ranges, making it suitable for demanding environmental conditions.

Supervisors Replacement Considerations

LTC2918 variants offer similar monitoring functions but include a manual reset input instead of the windowed watchdog found in the B1 version. Standard LTC2917 parts lack the windowed watchdog feature. Verify functional equivalence regarding the watchdog implementation when considering substitutes.