MAX6348XR37-T

Overview

The MAX6348XR37-T is a single-channel voltage supervisory circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates within a supply voltage range of 1V to 5.5V and consumes only 500nA of quiescent current. The device features a fixed overvoltage threshold of 3.958V and monitors a single input. It provides an active-low, open-drain reset output with a guaranteed valid state down to 1V. The reset timeout period is fixed at 280ms. The component is housed in a compact SC-70-3 surface-mount package and supports operation across an industrial temperature range from -40°C to +85°C.

Feature Summary

• Ultra-low power consumption with 500nA operating current
• Fixed overvoltage detection threshold for precise monitoring
• Active-low open-drain reset output valid down to 1V
• Compact SC-70-3 surface-mount packaging

Applications

• Portable battery-powered equipment requiring low standby current
• Microprocessor system power supervision
• Handheld devices and consumer electronics
• Industrial control systems operating in harsh environments

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributors. Ensure the SC-70-3 footprint matches your PCB layout requirements. Check for obsolescence notices as this part may have limited availability depending on the region and distributor.

Selection Notes

Select this component when a fixed 3.958V overvoltage threshold is required without manual reset functionality. It is suitable for designs needing minimal quiescent current draw. Consider alternative packages like SOT-23-3 if pin compatibility differs. Verify that the 280ms timeout meets system startup timing constraints. Ensure the open-drain output configuration aligns with the downstream logic interface requirements.

Part Context

This part belongs to the MAX6348 series of uPower Reset Circuits. It is designed for low-voltage applications where power efficiency is critical. The series offers various threshold voltages and package options to accommodate different system architectures. It serves as a reliable supervisor for ensuring stable operation of digital circuits during power transitions.

Replacement Considerations

Check for direct replacements within the MAX6348 family with different threshold voltages or packages. Verify functional compatibility with other single-channel supervisors offering similar open-drain outputs and low-power characteristics. Ensure any substitute maintains the same operating voltage range and temperature specifications.