MC33FS8420G0ES

Power Management - Specialized Overview

The MC33FS8420G0ES is an automotive safety power management IC from the FS8400 series, designed for ASIL B compliance. It operates within a DC input voltage range of 5.1 V to 60 V and features multiple switch-mode power supplies (SMPS) and linear regulators (LDOs). The device supports low standby current of 10 µA in shutdown mode and includes a 32-bit SPI interface with CRC. Packaged in a 56-terminal HVQFN (8 mm x 8 mm x 0.85 mm), it functions between -40 °C and +125 °C.

Power Management - Specialized Feature Summary

• Integrated multiple SMPS and LDO outputs for powering S32 microcontrollers and sensors
• Built-in independent safety monitoring mechanisms achieving ASIL B safety integrity level
• Configurable power sequencing and specific functions via one-time programmable (OTP) memory
• Supports low-power shutdown modes with minimal sleep current consumption

Power Management - Specialized Applications

• Advanced Driver Assistance Systems (ADAS) domain controllers
• Automotive radar sensor systems
• Automotive vision and camera modules
• LiDAR sensor power management

Power Management - Specialized Procurement Notes

Verify the package type matches your PCB footprint requirements, specifically the HVQFN56 exposed pad configuration. Confirm that the non-KS suffix variant meets your production programming needs, as KS suffixes are recommended for new designs to support standard pre-defined OTP profiles. Ensure compatibility with ISO26262 functional safety standards required for your target application.

Power Management - Specialized Selection Notes

Select this component when ASIL B safety certification is mandatory for the power management subsystem. It is suitable for applications requiring high input voltage tolerance up to 60 V. Consider the FS8400 series scalability if future pin-to-pin compatibility with FS85 devices is needed. Verify that the available OTP configurations cover your specific power sequencing requirements without custom programming.

Power Management - Specialized Part Context

This part belongs to the NXP FS84 family of safety SBCs, developed following ISO26262 standards and qualified under AEC-Q100. It serves as a primary companion chip for S32 microcontrollers in automotive environments. The FS84 series offers scalable power and safety concepts, ensuring interoperability with other components in the broader automotive electronics ecosystem.

Power Management - Specialized Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the source documentation. For design continuity, verify if the FS8400 series KS-suffix variants or compatible FS85 models meet your specific OTP and packaging constraints.