MAX6315US49D3+T

Supervisors Overview

The MAX6315US49D3+T is a single-channel voltage supervisory circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand. It monitors one input with a fixed threshold of 4.5V and an overvoltage threshold of 4.58V. The device features an active low, open-drain output and supports manual reset functionality. It operates within a supply voltage range up to 5.5V and maintains accuracy of 1.8%. The IC consumes 5 uA of quiescent current and includes a 200 ms reset delay time. It functions reliably across a temperature range from -40°C to +125°C.

Supervisors Feature Summary

• Provides undervoltage protection for single power rails via fixed threshold monitoring
• Features active low open-drain output compatible with standard logic interfaces
• Supports manual reset input for system initialization control
• Operates with ultra-low quiescent current consumption

Supervisors Applications

• Protecting microprocessors and digital logic circuits from brown-out conditions
• Monitoring battery-powered systems to ensure stable operation thresholds
• Providing power-on reset signals in embedded controller designs

Supervisors Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and lead-free certification prior to integration. Check for obsolescence notices as this series may be subject to discontinuation. Ensure packaging specifications match design requirements for surface mount assembly processes.

Supervisors Selection Notes

Select this component when a fixed 4.5V threshold is required for single-rail supervision. Consider the open-drain output configuration for compatibility with various logic families. Evaluate the 200 ms delay against system startup timing requirements. Verify that the SOT-143-4 package fits the available PCB footprint constraints.

Supervisors Part Context

This part belongs to the MAX6315 series of uP reset circuits designed for low-power applications. It serves as a voltage supervisor alternative to more complex watchdog timers. The series offers various threshold options to accommodate different standard voltage rails. It is commonly used in portable electronics and industrial control systems requiring reliable power management.

Supervisors Replacement Considerations

Consult official substitution lists for equivalent threshold variants within the MAX6315 family. Verify pinout compatibility before replacing with other SOT-143-4 supervisors. Cross-reference datasheets for matching reset delay times and output drive capabilities.