MAX6368PKA26+T

Overview

The MAX6368PKA26+T is a low-power microprocessor supervisory circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates within a supply voltage range of 1.0V to 5.5V and features a fixed reset threshold voltage of 2.625V. The device provides a single monitored input with an active-high, open-drain output type. Key electrical parameters include a reset delay time of 280ms and a typical operating supply current of 15uA. It supports battery backup switching and includes chip-enable gating functionality. The component is housed in an SOT-23-8 package and is rated for operation between -40°C and +85°C.

Feature Summary

• Integrates battery backup switching capability for seamless power source transitions
• Includes chip-enable gating to control reset output based on enable signal state
• Provides active-high open-drain reset output for flexible logic interfacing

Applications

• Microprocessor system power supervision
• Battery backup circuit management
• Embedded controller voltage monitoring

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging configuration. Confirm the 'KA' designation corresponds to the correct temperature grade and pinout variant. Ensure compatibility with the required 2.625V threshold for the target application voltage rails. Cross-reference the manufacturer's latest datasheet for any updates to the MAX6368P series specifications or recommended operating conditions.

Selection Notes

Select this component when an active-high reset output is required rather than the more common active-low configuration. The integrated chip-enable feature allows for dynamic control of the reset assertion, which is useful in power sequencing applications. The low quiescent current makes it suitable for battery-operated systems where standby power consumption is critical. Verify that the open-drain output structure aligns with the pull-up requirements of the connected microprocessor reset pin.

Part Context

This part belongs to the MAX6368P family of uPower Supervisory Circuits designed for low-voltage digital systems. It complements other variants like the MAX6368LKA series which offer active-low outputs. The MAX6368P series distinguishes itself by providing active-high reset options alongside standard features like battery backup and chip-enable gating, catering to specific logic interface needs in embedded designs.

Replacement Considerations

Consider the MAX6368PKA29+T for applications requiring a 2.9V threshold instead of 2.625V. The MAX6368LKA26+T serves as a functional alternative if an active-low push-pull output is acceptable. Verify pin compatibility and electrical parameter alignment before substituting with other members of the MAX6368 series.