MAX6315US25D1+

Supervisors Overview

The MAX6315US25D1+ is a low-power CMOS microprocessor supervisory circuit designed to monitor power supplies in microprocessor and digital systems. It features an active-low, open-drain reset output with a manual reset input. The device operates within a supply voltage range of 1V to 5.5V and provides a fixed threshold voltage of 2.5V. It includes a programmable reset timeout period ranging from 10ms to 500ms. The component supports operation over an extended temperature range of -40°C to +125°C and is available in a compact SOT-143 package.

Supervisors Feature Summary

• Provides reliable system reset by monitoring power supply voltages
• Features an open-drain reset output compatible with various logic families
• Includes a manual reset input for user-initiated system resets
• Offers a programmable reset timeout period to accommodate slow power-up sequences

Supervisors Applications

• Microprocessor (µP) and digital system power supply monitoring
• Battery-powered equipment requiring low quiescent current
• Portable instruments and handheld devices
• Embedded control systems needing extended temperature operation

Supervisors Procurement Notes

Verify the specific suffix D1 against the manufacturer's official datasheet to confirm the exact reset timeout configuration associated with this code. Ensure the ordering part number matches the required lead time and availability status, as Analog Devices may update packaging or revision details. Confirm RoHS compliance and environmental declarations align with project requirements before finalizing procurement.

Supervisors Selection Notes

Select this component when a fixed 2.5V threshold is required for the monitored rail. Consider the open-drain output topology if interfacing with higher voltage logic levels than the supply voltage. Evaluate the need for a manual reset function and the specific timeout duration defined by the D1 suffix. Compare operating current and package size against alternative supervisory circuits if space or power constraints are critical.

Supervisors Part Context

The MAX6315 belongs to a family of low-power µP reset circuits from Maxim Integrated, now part of Analog Devices. These devices are engineered to eliminate external components typically needed for power supervision. The US25 variant specifically targets applications requiring a 2.5V detection level, while the D1 suffix denotes a specific timeout characteristic within the series.

Supervisors Replacement Considerations

Direct replacements include other MAX6315 variants with different thresholds or timeouts, such as MAX6315USxxDx+, provided the electrical parameters match the application requirements. Cross-reference with MAX6314 or MAX6316 series parts only if bidirectional outputs or watchdog features are acceptable substitutes.