MAX6324AUT46

Supervisors Overview

The MAX6324AUT46 is a microprocessor supervisory circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand. It monitors power supply voltage and processor activity in digital systems, featuring a windowed watchdog timer and manual reset capability. The device operates within a supply voltage range of 1.2V to 5.5V and provides an active-low open-drain RESET output. It includes a fixed reset threshold of 4.63V with ±2.5% accuracy and a typical reset delay time of 280ms. The component is housed in a compact SOT-23-6 surface-mount package and supports operation across an industrial temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Integrates a windowed watchdog timer to detect abnormal system activity outside expected operational windows
• Provides manual reset functionality via a dedicated input pin for controlled system initialization
• Delivers a valid low-level reset signal down to a minimum supply voltage of 1.2V
• Features laser-trimmed reset thresholds ensuring high precision without external components

Supervisors Applications

• Microprocessor (µP) power supply monitoring in embedded systems
• Watchdog timer implementation for fault detection in digital circuits
• Manual reset control interfaces for hardware initialization sequences
• Voltage supervision for battery-powered devices requiring low standby current

Supervisors Procurement Notes

Verify the specific suffix 'AUT46' against official datasheets to confirm the exact threshold voltage and package variant. Ensure compatibility with existing PCB footprints for the SOT-23-6 package. Confirm RoHS compliance status through manufacturer documentation before integration into regulated products.

Supervisors Selection Notes

Select this component when a single-supply supervisor with integrated watchdog and manual reset is required. It is suitable for applications needing precise voltage monitoring with minimal external component count. Consider the open-drain output type for compatibility with various logic levels and the wide operating temperature range for industrial environments.

Supervisors Part Context

This part belongs to the MAX6323/MAX6324 family of µP supervisory circuits. The MAX6324 variant specifically offers an open-drain output, distinguishing it from the push-pull MAX6323. These circuits are designed to replace discrete resistor networks and timers, simplifying design while improving reliability in critical power management applications.

Supervisors Replacement Considerations

Direct substitutes include other parts from the MAX6324 series with matching thresholds, such as MAX6324AUT29 or MAX6324EUT46, provided the reset threshold and package match the design requirements. Verify functional equivalence regarding watchdog timing and manual reset behavior.