MAX16998AAUA/V+T

Supervisors Overview

The MAX16998AAUA/V+T is a high-voltage watchdog timer manufactured by Analog Devices under the Maxim Integrated brand. It operates within an input voltage range of up to 40V and features a fixed threshold voltage of 1.255V. The device provides a single monitored input with an open-drain output type. It includes a built-in watchdog timer function and lacks manual reset or battery backup switch capabilities. The reset delay time is specified at 116.09 ms. Designed for automotive applications, it holds AEC-Q100 qualification and functions reliably across an extended temperature range from -40°C to +125°C. The component is housed in an 8-UMAX package.

Supervisors Feature Summary

• High-voltage operation capability supporting inputs up to 40V
• Integrated watchdog timer functionality for system monitoring
• AEC-Q100 qualified for automotive reliability standards
• Open-drain output configuration for flexible interfacing

Supervisors Applications

• Automotive electronic control units requiring voltage supervision
• High-voltage industrial systems needing watchdog protection
• Battery-operated equipment with strict power monitoring needs

Supervisors Procurement Notes

Verify the specific suffix 'V' indicates automotive grade compliance when sourcing. Confirm the UMAX-8 package variant matches your PCB footprint requirements. Ensure the open-drain output aligns with your circuit pull-up design. Check current availability status as supply may be restricted. Validate RoHS compliance documentation for regulatory adherence.

Supervisors Selection Notes

Select this part when a high-voltage input tolerance exceeding standard logic levels is required. The fixed 1.255V threshold suits low-voltage core monitoring. Consider the absence of manual reset if automatic recovery is preferred. The wide operating temperature range supports harsh environments. Verify that the single-input limitation meets your monitoring architecture.

Supervisors Part Context

This component belongs to the MAX16998A series of supervisory circuits designed for robust voltage monitoring. It complements other Maxim Integrated PMIC solutions by offering dedicated watchdog timing in a compact surface-mount package. The series targets applications demanding reliable fault detection without complex external components.

Supervisors Replacement Considerations

The MAX16997AAUA+T serves as a public confirmed substitute within the same product family. Both share identical electrical parameters including the 1.255V threshold and 40V max input. Verify pinout compatibility before substitution.