MAX20481BATEA/VY+T

Supervisors Overview

The MAX20481BATEA/VY+T is an automotive-grade power system monitor System-on-Chip (SoC) designed for high-reliability applications. It integrates up to seven voltage monitoring inputs with programmable over-voltage and under-voltage thresholds, featuring ±1% accuracy. The device includes a factory-programmable window watchdog timer and a low-active RESET pin configurable for various fault conditions. Operating within a supply voltage range of 2.35V to 5.50V, it consumes only 150μA of quiescent current. The component is housed in a compact 3.0mm x 3.0mm side-wettable TQFN-16 package with an exposed pad for enhanced thermal performance.

Supervisors Feature Summary

• Complies with AEC-Q100 standards and achieves ASIL-D reliability requirements for automotive safety.
• Integrates multiple voltage monitoring inputs with independent remote ground detection for large current SoC power supplies.
• Features a factory-programmable window watchdog timer with digital input pins for refresh and disable capabilities.
• Includes internal error-correcting code (ECC) on one-time programmable memory to ensure data integrity.

Supervisors Applications

• Advanced Driver Assistance Systems (ADAS)
• Autonomous driving processing systems
• Remote sensor modules
• Power system monitoring and MCU/SoC supervision

Supervisors Procurement Notes

Verify the specific suffix 'BATEA/VY+T' against official Analog Devices documentation to confirm tape-and-reel packaging and exact factory programming options. Ensure the selected variant meets the required ASIL-D functional safety targets for your specific application architecture. Confirm that the side-wettable lead design aligns with your PCB assembly and automated optical inspection processes.

Supervisors Selection Notes

Select this component when designing automotive electronics requiring integrated power supervision with high functional safety integrity levels. The device is suitable for replacing discrete voltage supervisors and watchdog timers, significantly reducing bill-of-materials count and board space. Consider the ±1% threshold accuracy and programmable hysteresis for precise fault detection in sensitive vehicle subsystems.

Supervisors Part Context

This part belongs to the MAX20481 family of power system monitors from Analog Devices / Maxim Integrated. These devices are engineered to consolidate multiple protection functions into a single chip, addressing the complexity and size constraints of modern automotive electronic control units. The family supports various input configurations to accommodate different power rail architectures found in vehicle networks.

Supervisors Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify compatibility with existing designs by comparing pinout definitions, electrical characteristics, and safety certification levels before considering alternative components.

Supervisors FAQ

What is the maximum number of voltage monitoring inputs supported by the MAX20481?

The MAX20481 supports up to seven voltage monitoring inputs, including five fixed inputs and two differential DVS tracking inputs with remote ground detection.

Does the MAX20481 include a watchdog timer?

Yes, the device contains a factory-programmable window watchdog timer that can be refreshed or disabled via digital input pins.

What is the operating temperature range for this component?

The MAX20481 is designed to operate in an ambient temperature range of -40°C to +125°C.