FS8500 Safety SBC, Fit for ASIL D

For best experience this site requires Javascript to be enabled. To enable on your browser, follow our accessibility instructions.

Power Management
PMICs and SBCs
Safety SBCs
- FS23
- FS24
- FS26
- FS4500
- FS5502
- FS5600
- FS6500
- FS6600
- FS8400
- FS8500
- FS86
- MC33689
- MC33742
- MC33789
- MC33889
- MC33904
- MC33907
- MC33908
- MC33910
- MC33911
- MC33912
- MC33989
- MC34903
- MC34904
- MC34905
- MC34FS6407
- MC34FS6408
- MM908E622
- UJA1061TW
- UJA1065TW
- UJA1066TW
- UJA1069
- UJA1075ATW
- UJA1076ATW
- UJA1078ATW
- UJA1079ATW
- UJA113xHW
- VR5500
- VR5510
FS8500

Roll over image to zoom in

The FS85 is an automotive, functionally safe multi-output power supply integrated circuit. It’s focused on ADAS and domain controller applications and is the primary companion chip of the S32 microcontroller.

The FS85 includes multiple switch mode and linear voltage regulators, enhanced safety features with fail-safe outputs. This makes it a full part of a safety-oriented system up to ASIL D safety integrity level.

It is part of a complete family of devices offering scalability in power and safety FS84 and FS85, pin to pin and software compatible. It is developed in compliance with the ISO 26262 standard and is qualified according to AEC-Q100 requirements.

Application Notes

Product Details

Block Diagram

FS8500, Safety SBC Block diagram

Get diagram PDF

Features

Key Features

60 V maximum input voltage for automotive and truck markets
Multiple SMPS and LDO to supply S32 microcontroller and more
Standby OFF mode with very low sleep current (10 µA)
32 bits SPI and IDC interfaces with CRC
FIT for ASIL D with Independent Safety Monitoring Unit

Programmability

Supplies, sequencing, and specific functions can be programmed by One Time programmable (OTP) memory
Standard Predefined OTP supporting popular MCU can be found in data sheet under “ordering information” chapter
During development phase, Customized OTP part can be programmed using the KITFS85SKTEVM board
Custom OTP can be provided for production. Please contact your NXP sales channel (NXP or your distributor)
Custom OTP form can be downloaded OTP Configuration Tool

Product Longevity Program

This product is included in the NXP Product Longevity Program ensuring a stable supply of products for your embedded designs. The FS85-QFN56 is included in the 15-year program

Comparison Table

Scalable Power and Safety Concept

Part number	Buck 1	Buck 2	Buck 3	Vpre	Boost	Safety level
VR5500	0.8 V - 1.8 V 2.5 A Multi-phase and SVS option			12 / 24 V HV BUCK - 10 A	5 V - 5.74 V 1.5 A peak	Quality Mgt (QM)
FS8400		N/A	N/A			Fit for ASIL B
FS8500			N/A			Fit for ASIL D
FS5502			1.0 V - 4.1 V 3.6 A peak		N/A	Quality Mgt (QM)
FS8410					5 V - 5.74 V 1.5 A peak	Fit for ASIL B
FS8510						Fit for ASIL D
FS8420		0.8 V - 1.8 V 2.5 A Multi-phase and SVS option	N/A			Fit for ASIL B
FS8520			N/A			Fit for ASIL D
FS8430			1.0 V - 3.3 V 2.5 A			Fit for ASIL B
FS8530						Fit for ASIL D
FS6600						Fit for ASIL D

SafeAssure Functional Safety Program

When it comes to functional safety, NXP stands for quality and reliability. Our SafeAssure program simplifies system-level safety requirements in accordance with ISO 26262.
Read more

BYLink System Power Platform

This platform facilitates the design of safe power management systems thanks to a portfolio of configurable and linkable devices. It simplifies complex power supply subsystems into a single smart solution.
Learn more about this platform

PMICs and SBCs for Multi-Vendor Processors

Whether you are developing automotive, industrial or consumer applications, our configurable and flexible solutions support multi-vendor processors.
Explore more