MAX6368PKA29-T

Overview

The MAX6368PKA29-T is a low-power microprocessor supervisory circuit featuring battery backup and chip-enable gating. It operates within a supply voltage range of 0 V to 5.5 V with a fixed threshold of 2.93 V. The device provides an active-low, open-drain reset output with a typical timeout delay of 280 ms. Designed for SOT-23-8 packaging, it supports manual reset functionality and includes a battery backup switch for memory protection. Operating temperatures span from -40°C to +85°C.

Feature Summary

• Integrates battery backup control functions to manage power transitions between main and backup supplies.
• Features chip-enable gating to suppress reset outputs during specific operational states.
• Provides hardware-based memory write protection to prevent data corruption during brown-out events.

Applications

• Microprocessor system power monitoring
• Battery-backed RAM protection circuits
• Portable electronic devices requiring low quiescent current

Procurement Notes

Verify the exact suffix designation against the manufacturer's official documentation, as variations such as 'T' or '+' may indicate specific tape-and-reel packaging or compliance standards. Confirm availability status directly with authorized distributors, as this component may be subject to limited supply or special order constraints. Ensure the selected variant matches the required thermal and electrical specifications for the target application environment.

Selection Notes

Select this component when a fixed 2.93 V threshold is required for systems operating up to 5.5 V. The integrated battery backup feature makes it suitable for applications needing seamless power source switching without external logic. Consider the SOT-23-8 package for space-constrained designs. Verify that the active-low open-drain output aligns with the input requirements of the monitored microprocessor or controller.

Part Context

This part belongs to the MAX6368P series of supervisory circuits designed by Analog Devices (Maxim Integrated). These devices are engineered to simplify power-supply monitoring and memory write protection in microprocessor systems. The series typically offers various threshold voltages and packaging options to accommodate diverse system requirements while maintaining low power consumption.

Replacement Considerations

Consult the official datasheet for direct pin-compatible alternatives within the MAX6368 family that offer different threshold voltages or reset delays. Cross-reference with other Maxim Integrated supervisor ICs offering similar battery backup and chip-enable features if the specific 2.93 V threshold is not critical.