MAX6348UR46-T

Overview

The MAX6348UR46+T is a 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 a fixed threshold voltage of 4.63 V. The device provides an active low, open drain output with a reset delay time of 185 ms. It consumes a maximum operating supply current of 500 nA and maintains an accuracy of 1.5%. The component is housed in a SOT-23-3 package and supports operation across a temperature range from -40°C to +85°C.

Feature Summary

• Ultra-low power consumption with 500 nA supply current
• Fixed 4.63 V threshold for precise voltage monitoring
• Compact 3-pin SOT-23 or SC-70 surface-mount packaging

Applications

• Portable battery-powered equipment requiring extended battery life
• Microprocessor systems needing reliable power-on reset signals
• Automotive electronics operating within specified voltage limits

Procurement Notes

Verify the exact suffix against official documentation, as '+T' typically denotes tape-and-reel packaging while variations may exist. Confirm RoHS compliance status through manufacturer datasheets. Ensure the specific threshold voltage matches system requirements before procurement. Check for obsolescence notices or lifecycle changes directly from Analog Devices.

Selection Notes

Select this component when a fixed 4.63 V reset threshold is required for single-input monitoring. Consider the 500 nA quiescent current for strict power budget constraints. Verify that the open-drain output configuration aligns with the downstream logic interface. Ensure the SOT-23-3 footprint fits the PCB layout constraints.

Part Context

This part belongs to the MAX6348 series of microprocessor reset circuits designed for ultra-low-power applications. It complements similar devices like the MAX6346 and MAX6348 variants with different thresholds. The series is characterized by minimal external component requirements and high reliability in compact form factors.

Replacement Considerations

MAX6348UR44+T offers a 4.38 V threshold. ADM6348-34ARTZ-R7 provides a 3.451 V threshold option. Verify pinout compatibility and electrical specifications before substitution.