MAX6391KA23+

Supervisors Overview

The MAX6391KA23+T is a dual-voltage supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It monitors two independent voltage rails and provides sequenced reset outputs to ensure proper system startup. The device operates within a supply voltage range of 1.7V to 5.5V and features an active-low, open-drain reset output. Key electrical parameters include a threshold voltage of 2.325V for the monitored input, a reset delay time of 280ms, and a quiescent current of 15µA. It is housed in an SOT-23-8 package and supports operation from -40°C to +85°C.

Supervisors Feature Summary

• Dual-voltage monitoring capability with sequenced reset outputs
• Active-low open-drain reset signal generation
• Low power consumption suitable for battery-operated systems

Supervisors Applications

• Portable electronic devices requiring multi-rail power supervision
• Embedded systems with complex power-up sequences
• Battery-powered equipment needing low standby current

Supervisors Procurement Notes

Verify the specific suffix 'T' for tape-and-reel packaging if required. Confirm RoHS compliance status through official documentation. Check for obsolescence notices as Maxim Integrated products may have lifecycle changes. Ensure the supplier provides valid traceability for analog components.

Supervisors Selection Notes

Select this component when dual voltage monitoring with fixed sequencing is required. Compare threshold voltages against other KA variants in the MAX6391 family. Consider the SOT-23-8 footprint constraints during PCB layout. Verify that the 280ms reset delay meets system timing requirements.

Supervisors Part Context

This part belongs to the MAX6391 series of supervisory circuits designed for portable applications. It integrates dual voltage monitoring into a compact surface-mount package. The series offers various threshold options to accommodate different logic families and power rails.

Supervisors Replacement Considerations

Check for MAX6391KA23+ without the T suffix for tube packaging alternatives. Verify compatibility with other MAX6391 variants offering similar thresholds but different packages.