MAX6348XR44+

Overview

The MAX6348XR44+T is a voltage supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 1.2 V to 5.5 V and features a threshold voltage of 4.4 V with an accuracy of 2.5%. The device provides an active low, open-drain output and includes a reset delay time of 185 ms. It consumes a maximum operating supply current of 1 uA and functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Ultra-low power consumption suitable for battery-operated applications
• Active low open-drain output for direct microprocessor interfacing
• Compact 3-pin SC-70 package for space-constrained designs

Applications

• Portable electronic devices requiring extended battery life
• Microprocessor system supervision in consumer electronics
• Battery-powered instrumentation and measurement equipment

Procurement Notes

Verify the exact suffix (+T) against official datasheets to confirm packaging type. Confirm RoHS compliance status through manufacturer documentation. Check availability as distribution channels may indicate limited stock or discontinuation. Ensure the specific threshold voltage variant matches design requirements before procurement.

Selection Notes

Select this component when ultra-low quiescent current is critical for system efficiency. Verify that the 4.4 V threshold aligns with the monitored rail's nominal voltage. Consider the SC-70 package size constraints during PCB layout. Ensure the open-drain output configuration is compatible with the target logic levels.

Part Context

This part belongs to the MAX6348/MAX6379 family of ultra-low-power voltage supervisors. These devices are designed to monitor single power rails in portable systems. The series emphasizes minimal current draw while maintaining precise reset timing for reliable system operation under varying load conditions.

Replacement Considerations

Check for ADM6348 variants which offer similar functionality with potentially different thresholds. Verify pinout compatibility with existing PCB layouts. Confirm electrical specifications match original design requirements before substitution.