MAX20478BATBE/VY+

Supervisors Overview

The MAX20478BATBE/VY+ is an ASIL-D certified, 2-3 channel power system monitor designed for automotive applications. It operates within a supply voltage range of 2.5V to 5.5V and functions across an extended temperature range from -40°C to +125°C. The device integrates watchdog timers and provides open-drain or open-collector outputs for fault signaling. Packaged in a compact 10-TDFN (3x3) surface-mount format, it supports robust monitoring of critical power rails in safety-critical systems.

Supervisors Feature Summary

• ASIL-D functional safety certification for automotive power system monitoring
• Integrated watchdog timer functionality for system reliability
• Open-drain or open-collector fault output configuration

Supervisors Applications

• Automotive power distribution units
• Safety-critical vehicle control modules
• Multi-rail power supervision in ADAS systems

Supervisors Procurement Notes

Verify the specific suffix BE/VY+ against the manufacturer's latest datasheet to confirm pinout and electrical characteristics. Confirm ASIL-D compliance requirements match your system design. Check current availability status as automotive components may have restricted supply chains. Ensure ESD handling procedures are followed during installation.

Supervisors Selection Notes

Select this component when ASIL-D certification is mandatory for power monitoring. Compare channel count requirements; ensure the 2-3 channel capacity meets system needs. Verify operating voltage ranges align with target power rails. Consider the TDFN package size constraints relative to PCB layout limitations.

Supervisors Part Context

This part belongs to the MAX20478 series of power system monitors from Analog Devices/Maxim Integrated. It is specifically engineered for high-reliability automotive environments requiring strict functional safety standards. The series complements other Maxim power management solutions for complete vehicle electronics protection.

Supervisors Replacement Considerations

Consult official substitution lists for equivalent ASIL-D monitors. Verify compatibility with existing firmware if digital interfaces are used. Ensure thermal performance matches the original design constraints.