ADM8316WDW49ARJZR7

Supervisors Overview

The ADM8316WDW49ARJZR7 is a supervisory circuit manufactured by Analog Devices Inc., designed for monitoring voltage levels in electronic systems. It features a watchdog timer with a timeout of 30ms and an independent watchdog interval of 102ms. The device monitors a single input channel with a threshold voltage of 4.9V. It provides a manual reset function and utilizes a push-pull/totem pole output configuration. The component operates within a temperature range of -40°C to +125°C and is housed in a SOT-23-5 surface-mount package. It holds AEC-Q100 qualification for automotive applications.

Supervisors Feature Summary

• Integrated windowed watchdog timer with configurable timeout and independent interval functions
• Manual reset capability allowing external control over system reset states
• Push-pull output driver providing robust drive capability for downstream logic
• Automotive-grade qualification ensuring reliability under extended temperature conditions

Supervisors Applications

• Automotive electronic control units requiring high-temperature supervision
• Industrial systems utilizing windowed watchdog protection mechanisms
• Embedded controllers needing manual reset intervention capabilities

Supervisors Procurement Notes

Verify the exact suffix DW against official Analog Devices documentation to confirm the specific watchdog timeout, interval, and voltage threshold parameters. Confirm AEC-Q100 status and operating temperature range requirements match the target application environment. Check current supply availability as distribution channels may indicate limited stock or special order status for this specific variant.

Supervisors Selection Notes

Select this component when a windowed watchdog timer is required alongside manual reset functionality in automotive or industrial environments. Ensure the 4.9V threshold aligns with the monitored rail voltage. Verify that the SOT-23-5 package fits the PCB layout constraints and that the push-pull output meets the load requirements of the connected microcontroller or logic interface.

Supervisors Part Context

This part belongs to the ADM8316 series of supervisory circuits from Analog Devices. The series offers various combinations of watchdog timers, manual resets, and voltage thresholds. The W designation typically indicates windowed watchdog functionality, while D specifies the timeout characteristics. This family targets applications demanding reliable system monitoring under harsh environmental conditions.

Supervisors Replacement Considerations

Consult Analog Devices documentation for direct pin-compatible substitutes within the ADM8316 series that match the 4.9V threshold and 30ms/102ms timing specifications. Verify equivalent AEC-Q100 qualification and SOT-23-5 packaging for seamless integration without schematic modifications.