MAX6364PUT46

Overview

The MAX6364PUT46+T is a low-power microprocessor supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It operates within a supply voltage range of 1.2V to 5.5V and features a fixed reset threshold voltage of 4.63V. The device provides an active-low, push-pull reset output with a typical timeout delay of 280ms. It consumes only 15µA of quiescent current and includes a battery backup pin for maintaining system state during power transitions. The component is housed in a compact SOT-23-6 package and supports operation across an industrial temperature range from -40°C to +85°C.

Feature Summary

• Integrates a dedicated battery backup pin to preserve volatile memory or critical data states during main power loss events.
• Delivers a deterministic reset signal via an active-low push-pull output structure to ensure reliable initialization of digital logic.
• Maintains ultra-low power consumption through a 15µA quiescent current draw suitable for battery-operated systems.

Applications

• Portable medical instrumentation requiring strict power monitoring
• Battery-powered consumer electronics with data retention needs
• Industrial control systems operating in harsh thermal environments

Procurement Notes

Verify the specific suffix against official datasheets to confirm pinout compatibility and electrical characteristics. Confirm RoHS compliance status and manufacturing origin. Check for obsolescence notices as this series may have limited availability. Ensure the supplier provides traceable documentation matching the exact part number variant.

Selection Notes

Select this component when a fixed 4.63V threshold is required for high-voltage rails. The SOT-23-6 package offers space efficiency compared to larger footprints. Consider the 15µA current draw for extended battery life requirements. Verify that the 280ms timeout aligns with the startup sequence timing of the target microprocessor.

Part Context

This part belongs to the Maxim Integrated MAX636x family of low-power supervisors. These circuits are designed to monitor single-supply voltages and provide reset signals to microprocessors. The family emphasizes low standby current and small form factors for portable applications.

Replacement Considerations

Cross-reference with MAX6364LUT46+T for identical electrical specifications but potential packaging differences. Verify functional equivalence with MAX6363PUT46+T if manual reset inputs are not utilized in the design.

FAQ

Does the MAX6364PUT46 include a manual reset input?

No, the MAX6364PUT46 does not feature a manual reset input; it relies solely on automatic voltage monitoring.

What is the function of the third pin on the SOT-23-6 package?

The third pin serves as the Battery Backup (BB) input, allowing the device to maintain its internal state during main power failure.