MAX6315US28D1-T

Supervisors Overview

The MAX6315US28D1-T is a CMOS microprocessor supervisory circuit designed to monitor power supplies in digital systems. It features an active-low, open-drain reset output and supports manual reset functionality. The device operates within a supply voltage range up to 5.5V and includes a fixed threshold voltage of 2.8V with a typical accuracy of 1.8%. It provides a reset delay time of 140ms minimum and consumes only 5µA of operating supply current. The component is housed in a compact SOT-143-4 surface-mount package and functions reliably across an extended temperature range from -40°C to +125°C.

Supervisors Feature Summary

• Provides reliable system reset when monitored supply voltage drops below the specified threshold
• Features low-power operation suitable for battery-powered applications
• Includes manual reset input for external control of the reset state

Supervisors Applications

• Microprocessor (µP) power supply monitoring
• Digital system voltage supervision
• Portable electronic devices requiring low standby current

Supervisors Procurement Notes

Verify the specific suffix D1 against official Analog Devices documentation to confirm pinout and electrical characteristics, as suffixes often denote package or temperature variations. Confirm availability status directly with the manufacturer or authorized distributors, as this part number may be subject to discontinuation or limited production runs. Ensure compatibility with your system's voltage levels and thermal requirements before procurement.

Supervisors Selection Notes

Select this component when a fixed 2.8V threshold is required for single-supply monitoring. The open-drain output allows for flexible interfacing with various logic families through pull-up resistors. Consider the 140ms reset timeout and 1.8% accuracy for timing-sensitive applications. Verify that the SOT-143-4 package fits your PCB layout constraints and that the -40°C to +125°C temperature range meets your environmental specifications.

Supervisors Part Context

The MAX6315 series consists of low-power voltage supervisory circuits manufactured by Maxim Integrated, now part of Analog Devices. These devices are designed to replace discrete components in microprocessor reset circuits. The US suffix indicates the SOT-143-4 package type. The series offers various fixed threshold voltages to accommodate different standard supply rails without requiring external adjustments.

Supervisors Replacement Considerations

Check for direct replacements within the MAX6315 family with matching threshold voltages and package types. Verify if newer revisions or alternative packages from Analog Devices offer improved availability while maintaining identical electrical performance and pin configurations.