Safety System Basis Chip For Domain Controller, Fit For ASIL B and D

FS86

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The FS86 device family is software compatible with the FS84/85 family. It expands the power capability, the safety integration and system scalability of domain controller applications to address multiple MCU requirements present in ADAS and electrification.

The FS86 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 B/D safety integrity level.

Belonging to the BYLINK System Power Platform, NXP releases a new essential link with the FS86 Safety Power Management Family.

The FS86 SBC is part of a complete family of devices offering scalability in power and safety, pin to pin and software compatible. It is developed in compliance with the ISO 26262 standard and is qualified according to AEC-Q100 requirements.

For sampling purposes please order: MFS8613BMDA0ES

Block Diagram

FS86, Safety SBC Block Diagram

FS86, Safety SBC Block Diagram
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Features

Power Management

  • Up to 60 V DC maximum input voltage
  • Up to 15 A HV BUCK with e-fuse protection
  • Multiple switch mode regulators as well as LDO voltage regulators and a boost
  • Low Power OFF (LPOFF) mode with very low sleep current (10 µA)

System Solutions

  • Enhanced leader/follower power up sequencing management thru XFAILB pin
  • 2x input pins for wake-up detection, 3.3 V compatible and battery voltage sensing capability
  • System added value to save space and reduce complexity: AMUX
  • External pre-regulator short-circuit protection (BAT_SW)
  • Supplies, sequencing and specific functions can be programmed by One Time Programmable (OTP) memory
  • 10 ms optional RSTB release delay during power up for certain MCU compliancy
  • Device control via 32 bits I2C interface with 8-bit CRC
  • EMC optimization technics on switching regulators including spread spectrum, slew rate control and manual frequency tuning

Functional Safety

  • Up to 10 voltage monitoring with +/-1% accuracy
  • Scalable portfolio from Automotive Safety Integrity Levels (ASIL) B to D
  • Enable latent fault monitoring when system is running: ABIST on demand
  • Dedicated interface for microcontroller monitoring
  • Simple and challenger watchdog function
  • Safety outputs with latent fault detection mechanism (RSTB, FS0B)

Configuration and Enablement

  • QFN48 pins with exposed pad for optimized thermal management
  • Permanent device customization via One Time Programmable (OTP) memory
  • Temporary OTP emulation mode for system development and evaluation
  • Ready to use hardware and software

Sample Availability

  • For sampling purposes please order: MFS8613BMDA0ES

Product Longevity Program

  • This product is included in the NXP Product Longevity Program ensuring a stable supply of products for your embedded designs. The FS86 is included in the 15-year program

Part numbers include: MFS8600BMBA0ES, MFS8600BMDA0ES, MFS8601BMBA0ES, MFS8601BMDA0ES, MFS8602BMBA0ES, MFS8602BMDA0ES, MFS8603BMBA0ES, MFS8603BMDA0ES, MFS8610BMBA0ES, MFS8610BMDA0ES, MFS8611BMBA0ES, MFS8611BMDA0ES, MFS8612BMBA0ES, MFS8612BMDA0ES, MFS8613BMBA0ES, MFS8613BMDA0ES, MFS8620BMBA0ES, MFS8620BMDA0ES, MFS8621BMBA0ES, MFS8621BMDA0ES, MFS8622BMBA0ES, MFS8622BMDA0ES, MFS8623BMBA0ES, MFS8623BMDA0ES, MFS8630BMBA0ES, MFS8630BMDA0ES, MFS8631BMBA0ES, MFS8631BMDA0ES, MFS8632BMBA0ES, MFS8632BMDA0ES, MFS8633BMBA0ES, MFS8633BMDA0ES.

Comparison Table

Scalable Power and Safety Concept

Products Battery Network VSUP max rating VPRE BOOST BUCK LDOs VMONs Watchdog FCCU ERRMON FIN
FS8600 24 V 60 V yes yes no 2 4 yes [1] yes yes yes
FS8601 6
FS8602 8
FS8603 10 no [2]
FS8610 yes 4 yes
FS8611 6
FS8612 8
FS8613 10 no [2]
FS8620 12 V 36 V yes yes no 2 4 yes [1] yes yes yes
FS8621 6
FS8622 8
FS8623 10 no [2]
FS8630 yes 4 yes
FS8631 6
FS8632 8
FS8633 10 no [2]

[1] ASIL B: Watchdog Simple. ASIL D: Watchdog Challenger.

[2] FIN and VMON9 cannot be used at the same time (same pin).


Standard Configurations

Part Number Descrption OTP ID* Safety Grade Package
MFS8620BMDA8ES S32Z270-DC EVB DC1/DC2/DC4 DA8 report and configuration files ASIL D QFN48eP

*OTP configuration files are embedded in the PDF reports.

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