MAX6366PKA46+

Overview

The MAX6366PKA46+T is a low-power microprocessor supervisory circuit manufactured by Analog Devices / Maxim Integrated. It operates within a supply voltage range up to 5.5 V and features a threshold voltage of 4.63 V with an overvoltage threshold of 4.75 V. The device monitors one input and provides an active low, open drain output. Key functional attributes include a built-in watchdog timer, battery backup switching capability, and chip-enable gating. It exhibits a reset delay time of 280 ms and consumes only 15 uA of operating current. The component is housed in an SOT-23-8 package and supports operation across a temperature range from -40 C to +85 C.

Feature Summary

• Integrates a watchdog timer for system reliability monitoring
• Includes battery backup switching for continuous power management
• Features chip-enable gating for power control flexibility

Applications

• Microprocessor system supervision
• Battery-powered electronic devices
• Portable instrumentation requiring low power consumption

Procurement Notes

Verify the exact suffix designation (+T) against official documentation to confirm reel packaging specifications. Confirm RoHS compliance status through the manufacturer's datasheet. Ensure the specific threshold voltage variant matches the design requirements, as other suffixes may indicate different voltage levels. Cross-reference the part number with authorized distributors to validate current availability and authenticity.

Selection Notes

Select this component when a single-channel supervisory circuit with integrated watchdog functionality is required. The low quiescent current makes it suitable for battery-operated applications. Verify that the SOT-23-8 package fits the PCB layout constraints. Ensure the 4.63 V threshold aligns with the monitored rail voltage. Consider the active low open-drain output compatibility with the target logic interface.

Part Context

This part belongs to the MAX6366P series of low-power microprocessor supervisory circuits. The series is characterized by its combination of voltage monitoring, watchdog timer, and battery backup switching in a compact surface-mount package. It is designed for applications requiring reliable system reset management under varying power conditions.

Replacement Considerations

Check for MAX6366 variants with different threshold voltages if the 4.63 V level is not suitable. Other members of the MAX6366 family may offer alternative output types or packages. Verify pinout compatibility before substituting with similar supervisory ICs from the same manufacturer.