MAX6315US30D1-T

Supervisors Overview

The MAX6315US30D1-T is a microprocessor supervisory circuit designed to monitor power supply voltages in digital systems. It features an open-drain active-low reset output and supports manual reset functionality via an external input. The device operates within a supply voltage range of 1 V to 5.5 V, with a fixed threshold voltage of 3.0 V for the monitored input. It provides a typical reset delay time of 1.4 ms and maintains low operating supply current of 5 µA. The component is housed in a compact SOT-143-4 surface-mount package and is rated for operation across an extended temperature range from -40 °C to +125 °C.

Supervisors Feature Summary

• Provides reliable system reset generation when monitored supply voltage drops below the specified threshold.
• Includes a manual reset input pin allowing external control over the reset state independent of voltage levels.
• Features an open-drain output configuration suitable for interfacing with various logic families without level shifting requirements.

Supervisors Applications

• Monitoring power rails in embedded microprocessor systems
• Ensuring system stability in portable electronic devices
• Providing reset signals for digital logic circuits under low-voltage conditions

Supervisors Procurement Notes

Verify the specific suffix D1 corresponds to the 3.0 V threshold variant during procurement. Confirm RoHS compliance status (+ suffix) if environmental regulations apply. Ensure the SOT-143-4 package dimensions match the PCB footprint design. Check for lead-free soldering compatibility if required by assembly processes. Validate that the open-drain output configuration aligns with the target system's pull-up resistor requirements.

Supervisors Selection Notes

Select this component when a fixed 3.0 V monitoring threshold is required for single-supervision applications. Consider the open-drain output type if the system requires flexible pull-up voltage selection. Evaluate the 5 µA supply current against battery life constraints in portable designs. Verify that the manual reset feature meets the system's initialization or recovery needs. Ensure the SOT-143-4 package fits within the available board space constraints.

Supervisors Part Context

This part belongs to the MAX6315 series of low-power CMOS supervisory circuits manufactured by Analog Devices (Maxim Integrated). The series is designed for monitoring single power supplies in microprocessor and digital systems. Variants differ primarily by threshold voltage and package type, with the US designation indicating the SOT-143-4 package format.

Supervisors Replacement Considerations

Cross-reference with other MAX6315 variants sharing the same SOT-143-4 package but different threshold voltages if voltage levels change. Verify functional compatibility with other Maxim Integrated supervisor ICs offering open-drain outputs and manual reset inputs. Ensure any substitute matches the 1 V to 5.5 V operating voltage range and -40 °C to +125 °C temperature specifications.