MAX6348UR44-T

Overview

The MAX6348UR44-T is a single-channel voltage supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of up to 5.5 V and features an active-low, open-drain output type. The device provides a reset delay time of 280 ms and monitors a single input with a threshold voltage of 3.451 V. It functions without manual reset or watchdog timer capabilities. The component supports surface mount installation in an SOT-23-3 package and maintains accuracy across a temperature range from -40 C to +85 C.

Feature Summary

• Provides automatic system reset when monitored voltage drops below the factory-trimmed threshold
• Features low quiescent current consumption suitable for battery-powered applications
• Offers reliable power-fail detection with defined reset timeout period

Applications

• Microprocessor power supply monitoring
• Battery-operated electronic devices
• Portable instrumentation systems

Procurement Notes

Verify the exact part number suffix against official manufacturer documentation, as variations such as +T indicate specific tape-and-reel packaging configurations. Confirm availability status directly with authorized distributors, as supply constraints may affect lead times. Ensure the selected variant matches the required operating temperature range and package style for your specific design implementation.

Selection Notes

Select this component when a simple, low-power voltage supervisor is required for single-rail monitoring. Consider the open-drain output compatibility with your system logic levels. Evaluate the 280 ms reset delay against your microcontroller startup requirements. Verify that the 3.451 V threshold aligns with your minimum acceptable supply voltage before finalizing the design.

Part Context

This device belongs to the MAX6348 series of ultra-low-power reset circuits designed for digital systems. It serves as a dedicated supervisory solution for ensuring stable operation by detecting under-voltage conditions. The series is characterized by minimal external component requirements and high reliability in compact surface-mount packages.

Replacement Considerations

Consult official cross-reference guides for compatible alternatives. Verify pinout compatibility and electrical specifications before substitution.