MAX6323FUT46+

Supervisors Overview

The MAX6323FUT46+ is a microprocessor supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It monitors power supplies and microprocessor activity in digital systems, featuring a windowed watchdog timer and manual reset capability. The device operates within a supply voltage range of up to 5.5V and includes a fixed reset threshold of 4.63V with ±2.5% accuracy. It provides a push-pull active-low output that remains asserted for at least 100ms after the supply voltage falls below the threshold or when the manual reset input is activated. The circuit ensures valid RESET output down to VCC = +1.2V and functions across an industrial temperature range from -40°C to +125°C.

Supervisors Feature Summary

• Integrates a windowed watchdog timer to detect system malfunctions outside expected operational windows
• Provides manual reset functionality via a dedicated input pin for controlled system restarts
• Delivers a push-pull active-low reset signal guaranteed down to low supply voltages
• Features laser-trimmed reset thresholds for precise voltage monitoring without external components

Supervisors Applications

• Monitoring power supplies in embedded digital systems
• Detecting microprocessor activity faults via watchdog timer
• Providing reset signals for complex logic circuits
• Ensuring system stability in industrial environments

Supervisors Procurement Notes

Verify component authenticity through authorized distributors as counterfeits exist. Confirm RoHS compliance status for environmental regulations. Check current lifecycle status since availability may be limited. Ensure package integrity matches SOT-23-6 specifications during receipt inspection. Validate datasheet revision against manufacturing date codes for parameter consistency.

Supervisors Selection Notes

Select this part when a fixed 4.63V threshold is required for system supervision. Choose the push-pull output variant over open-drain if driving higher capacitive loads. Consider the ±2.5% accuracy tolerance for precision applications. Verify that the 100ms reset delay meets system timing requirements. Ensure the operating temperature range covers the intended deployment environment.

Supervisors Part Context

This component belongs to the MAX6323 series of uP supervisory circuits designed for reliable power management. It complements other variants like MAX6323DUT46+T and MAX6323HUT46+T which offer different threshold voltages. The series is characterized by low quiescent current and compact packaging suitable for space-constrained designs.

Supervisors Replacement Considerations

Direct substitutes include MAX6323DUT46+T and MAX6323HUT46+T from the same manufacturer family. Verify that replacement parts match the specific 4.63V threshold requirement. Ensure equivalent package type SOT-23-6 compatibility for PCB footprint retention. Confirm identical electrical characteristics such as reset delay and output drive capability.