LTC2919CMS-3.3#PBF

Supervisors Overview

The LTC2919CMS-3.3#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 with high accuracy. The device operates within a supply voltage range up to 6 V and draws a typical quiescent current of 50 uA. It provides an open-drain reset output with a fixed 200 ms delay to ensure system stability during power transitions. Packaged in a compact 10-MSOP format, it supports surface-mount installation and functions reliably across a commercial temperature range of 0°C to +70°C.

Supervisors Feature Summary

• Monitors three independent voltage inputs for under-voltage, over-voltage, and negative voltage faults
• Provides a low-active open-drain reset signal with a guaranteed minimum timeout duration
• Delivers precise threshold detection with specified accuracy for critical power management applications

Supervisors Applications

• Multi-rail power supply supervision in industrial control systems
• Voltage monitoring for microprocessor and memory subsystems
• Embedded system protection against abnormal power conditions

Supervisors Procurement Notes

Verify the exact suffix and package variant when ordering, as availability may vary by region. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the selected component matches the required thermal and electrical specifications for the target application environment.

Supervisors Selection Notes

Select this component when multi-channel voltage supervision is required without manual reset functionality. The fixed threshold version simplifies design compared to adjustable variants. Consider the MSOP package constraints and operating temperature limits relative to the specific deployment environment.

Supervisors Part Context

This part belongs to the LTC2919 series of precision voltage monitors from Analog Devices. The series offers various threshold options and package configurations to suit different board space and voltage requirements. It serves as a dedicated solution for ensuring system reliability by detecting power anomalies before they cause data corruption or hardware damage.

Supervisors FAQ

Does the LTC2919CMS-3.3#PBF include a manual reset pin?

No, this specific model does not feature a manual reset input; the reset state is determined solely by the monitored voltage levels.

What is the reset delay time for this supervisor?

The device incorporates a fixed reset delay time of 200 ms to prevent false triggering during power-up transients.