LTC2909IDDB-3.3#TRM

Supervisors Overview

The LTC2909IDDB-3.3#TRM is a precision triple/dual input under-voltage, over-voltage, and negative voltage monitor manufactured by Analog Devices Inc. It features an open-drain or open-collector output with active-low reset functionality. The device monitors three inputs within an 8-DFN (3x2) package. Key electrical parameters include a maximum supply voltage of 6 V, a typical operating supply current of 50 uA, and a reset delay time of 200 ms. The accuracy is specified at 1.5%. The component operates across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Provides precise monitoring for multiple power rails including under-voltage, over-voltage, and negative voltage conditions
• Features configurable reset timeout with selectable or adjustable timing options
• Delivers active-low reset signal via open-drain or open-collector output interface

Supervisors Applications

• Multi-rail power supply supervision in embedded systems
• Monitoring critical voltage thresholds in industrial control equipment
• System integrity verification in portable electronic devices

Supervisors Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm exact threshold configurations and packaging variations. Ensure compatibility with system voltage levels and thermal requirements before integration. Cross-reference part numbers with authorized distributors to avoid counterfeit components. Confirm RoHS compliance status through manufacturer declarations.

Supervisors Selection Notes

Select this component when designing circuits requiring simultaneous monitoring of three distinct voltage rails with high accuracy. Consider the 8-DFN package size for space-constrained layouts. Evaluate the 50 uA supply current against total system power budgets. Verify that the 200 ms reset delay aligns with system startup sequencing requirements.

Supervisors Part Context

This part belongs to the LTC2909 series of supervisory circuits designed for multi-input voltage monitoring. It complements other variants like the LTC2909CTS8 and LTC2909IDDB-5 by offering specific threshold settings for the 3.3V configuration. The series targets applications needing compact, precise power management solutions without complex external components.

Supervisors Replacement Considerations

LTC2909IDDB-3.3#TRMPBF is a verified equivalent variant with identical functional specifications and RoHS-compliant packaging.