LTC2913IDD-2#PBF

Supervisors Overview

The LTC2913IDD-2#PBF is a dual-input voltage monitor manufactured by Analog Devices Inc., designed for precise supervision of two independent voltage rails. It operates within a supply voltage range of 2.7V to 36V and features an adjustable threshold mechanism allowing for 27 selectable trip points via external resistors. The device integrates a watchdog timer with a programmable timeout period to detect software hangs or communication failures, automatically triggering a system reset if the input signal fails to toggle. It provides open-drain outputs for under-voltage, over-voltage, and watchdog fault conditions, ensuring reliable power management in embedded systems.

Supervisors Feature Summary

• Dual-channel voltage monitoring with independently configurable thresholds
• Integrated watchdog timer with programmable timeout for system integrity
• Open-drain fault output signaling for under-voltage, over-voltage, and watchdog events

Supervisors Applications

• Embedded system power supply supervision
• Industrial control unit voltage monitoring
• Communication equipment backup power validation

Supervisors Procurement Notes

Verify the specific suffix IDD-2 against the official Analog Devices datasheet to confirm the package type (MSOP-10) and temperature grade (-40°C to +85°C). Ensure the selected variant matches the required threshold adjustment configuration. Cross-reference the manufacturer part number with authorized distributors to confirm current availability status, as supply constraints may apply. Validate RoHS compliance documentation prior to integration into final assemblies.

Supervisors Selection Notes

Select this component when dual-rail supervision with integrated watchdog functionality is required in a compact surface-mount package. The adjustable threshold feature allows customization for various voltage levels without changing the IC. Consider the MSOP-10 footprint for space-constrained designs. Evaluate the need for the specific watchdog timeout characteristics against the target system's clock frequency and expected response times.

Supervisors Part Context

This component belongs to the LTC2913 family of nano-current voltage monitors from Analog Devices. It is engineered for applications requiring low quiescent current and high precision in harsh environments. The series supports multiple input configurations and includes additional variants with different package options and temperature ranges to suit diverse industrial and commercial requirements.

Supervisors Replacement Considerations

Consult the Analog Devices cross-reference guide for verified substitutes. Potential alternatives include other dual-input supervisors from the same manufacturer with compatible pinouts and electrical specifications. Verify that any replacement maintains the 36V maximum input rating and open-drain output compatibility.