ADM6321AY31ARJZ-R7

Supervisors Overview

The ADM6321AY31ARJZ-R7 is a single-channel power supply management circuit manufactured by Analog Devices Inc. It operates within an industrial temperature range of -40 °C to +85 °C and utilizes a 5-pin SOT-23 package (PDSO5). The device features a fixed reset threshold voltage of 3.1 V, ensuring accurate monitoring of the supply rail. It integrates a watchdog timer with a typical timeout of 1600 ms and offers configurable reset output stages, including push-pull active low, open-drain active low, and push-pull active high configurations. The component consumes low power and provides glitch immunity for reliable system supervision.

Supervisors Feature Summary

• Integrates a watchdog timer with selectable timeout periods for automated system recovery
• Provides multiple reset output stage options including push-pull and open-drain configurations
• Ensures valid reset output down to a minimum supply voltage of 1 V
• Includes manual reset input capability for external control

Supervisors Applications

• Embedded systems requiring power supply supervision
• Microcontroller reset circuits in industrial environments
• Watchdog timer implementations for fault detection
• Portable electronic devices with low power constraints

Supervisors Procurement Notes

Verify the specific suffix ARJZ-R7 corresponds to the tape-and-reel packaging format required for your assembly line. Confirm that the 3.1 V threshold matches your design specifications, as this variant is not adjustable. Ensure compatibility with the 5-lead SOT-23 footprint during PCB layout review. Check for RoHS compliance documentation if required by your manufacturing standards.

Supervisors Selection Notes

Select this component when a fixed 3.1 V threshold is required rather than adjustable options. Choose the ADM6321 series over simpler supervisors if integrated watchdog functionality is necessary. Consider the available output configurations to match the interface requirements of the target microcontroller or logic family. Verify that the 1 V operating limit meets the lowest expected supply voltage in your application.

Supervisors Part Context

This part belongs to the ADM6316/ADM6321 supervisory circuit family from Analog Devices. These devices combine power supply monitoring with watchdog timers in compact packages. The ADM6321 variant specifically includes a manual reset input, distinguishing it from basic supervisors. The family supports various threshold voltages and timeout options to suit diverse industrial and commercial applications.

Supervisors Replacement Considerations

Check for ADM6321 variants with different threshold voltages if 3.1 V is incorrect. Verify pinout compatibility with other ADM63xx series parts before substitution. Ensure any replacement maintains the same SOT-23-5 package and electrical characteristics.