FS26 Safety System Basis Chip with Low Power Fit for ASIL D

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FS26

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The FS26 family of automotive safety system basis chip (SBC) devices offer multiple power supply options designed to support entry and mid-range safety microcontrollers like the S32K3 series. FS26 devices also enable other microcontrollers targeting automotive electrification such as powertrain, chassis, safety and low-end gateway applications.

The FS26 features multiple switch mode regulators as well as LDO voltage regulators to supply the microcontroller, sensors, peripheral ICs and communication interface. FS26 offers a high-precision voltage reference available to the system and a reference voltage for 2 independent voltage-tracking regulators. In addition, various functionalities are available for system control and diagnostics such as analog multiplexer, GPIOS and selectable wake up events from I/O, long duration timer or SPI communication.

The FS26 is ISO 26262 compliant, covering ASIL B and ASIL D safety integrity levels. It features multiple fail-safe outputs, becoming a full part of a safety-oriented system partitioning, along with the latest on-demand latent fault monitoring.

Application Notes

Product Details

Block Diagram

FS26 Safety SBC Block Diagram

FS26 Safety SBC with Low Power Fit for ASIL D

Get diagram PDF

Features

Power Management

40 V DC maximum input voltage
Handle severe cranking operation (3.2 V battery) due to its BOOST controller
Low Power Off mode with very low sleep current (30 uA typ.)
Low Power Standby mode, VPRE active. LDO1 or LDO2 active selectable via OTP configuration (25 uA typ.)
Multiple switch mode regulators as well as LDO voltage regulators to supply the microcontroller, sensors, peripheral ICs and communication interface

System Solutions

System added value to save space and reduce complexity: LDT, AMUX, Dual Tracker, Vref
Programmable long duration timer (LDT) for system turn-off/wake-up control
Selectable wake-up sources from: WAKE/GPIO pins, LDT or SPI activity

Functional Safety

Scalable portfolio from automotive safety integrity levels ASIL B to ASIL D
Enable latent fault monitoring when system is running: ABIST on-demand
Independent monitoring circuitry
Dedicated interface for microcontroller monitoring
Simple and challenger watchdog function
Safety outputs with latent fault detection mechanism (RSTB, FS0B, FS1B)

Configuration and Enablement

LQFP48 pins with exposed pad for optimized thermal management
Permanent device customization via one-time-programming (OTP) fuse memory
Temporary OTP emulation mode for system development and evaluation
Ready to use S32K3 + FS26 hardware and software

Product Longevity Program

This product is included in the NXP Product Longevity program ensuring a stable supply of products for your embedded designs. Automotive target market derivatives are included in the 15-year program

Comparison Table

Part Number	Description	OTP Files and Report	Safety Grade	Package
MFS2613AMDA2AD	S32K3 + FS26 EVB ASIL D S32K3X4EVB-Q257	DA2 Report, programming and configuration files	ASIL D	HLQFP48
MFS2613AMDA3AD	S32K344 HVBMS Reference design	DA3 Report, programming and configuration files	ASIL D	HLQFP48
MFS2613AMDA4AD	S32K3 Body Control Module Reference design	DA4 Report, programming and configuration files	ASIL D	HLQFP48
MFS2613AMDA6AD	S32K344 48 V MC Development platform	DA6 Report, programming and configuration files	ASIL D	HLQFP48
MFS2621AMDABAD	AURIX TC38x, TC29x	DAB Report, programming and configuration files	ASIL D	HLQFP48
MFS2613AMDDCAD	FS26 + S32K324 + SAJ1110 + AG55X 5G T-BOX	DDC Report, programming and configuration files	ASIL D	HLQFP48
MFS2633AMDALAD	S32K3x8 and S32K396 MCU attach	DAL report, programming and configuration file	ASIL D	HLQFP48
MFS2633AMDE4AD	S32K396 Reference design	DE4 report, programming and configuration file	ASIL D	HLQFP48
MFS2613AMDH3AD	S32K344 400 V HVBMS Reference design (No VBST)	DH3 report, programming and configuration file	ASIL D	HLQFP48
MFS2633AMDAHAD	S32K396 BMS Reference Design	DAH report, programming and configuration file	ASIL D	HLQFP48
MFS2633AMDAJAD	S32K358 400 V and 800 V HVBMS Reference design	DAJ report, programming and configuration file	ASIL D	HLQFP48
MFS2633AMDC3AD	S32K358 400 V and 800 V HVBMS Reference design (wireless)	DC3 report, programming and configuration file	ASIL D	HLQFP48
MFS2633AMDAKAD	S32K358 400 V and 800 V HVBMS Reference design (No VBST)	DAK report, programming and configuration file	ASIL D	HLQFP48
MFS2633AMDADAD	RH850UA2x for BMS and ZCU Applications (VCORE = 1.09 V)	DAD report, programming and configuration file	ASIL D	HLQFP48
MFS2623AMDAEAD	RH850C, RH850P or RH850F for EPS, BMS, Motor control and DCDC applications (VCORE = 1.25 V)	DAE report, programming and configuration file	ASIL D	HLQFP48
MFS2633AMDAMAD	RH850UA2x for ADAS, Smart cockpit and 3.3 V applications (VCORE = 1.09 V)	DAM report, programming and configuration file	ASIL D	HLQFP48
MFS2613AMDHKAD	5 V IO Systems for powertrain applications (BMS, Inverter)	DHK report, programming and configuration file	ASIL D	HLQFP48

Note: Any FS26 OTP configuration where VBST is in front-end mode can also be used without it. Connect VBST_FB pin to the VSUP/VSUP_PWR node and follow our recommendations for the other unused pins in section ‘8. Connection of unused pins’ from the FS26 Product datasheet.

Note: Any FS26 OTP configuration where VMONEXT pin is enabled and assigned to the ABIST1 can also be used without it. Connect an external resistor bridge divider to apply 0.8 V at VMONEXT pin.

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

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.
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Buy/Parametrics

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Documentation

Quick reference to our documentation types.

5 documents

^{Product Brief}
FS26, Safety System Basis Chip with Low Power for ASIL D /ASIL B - Product BriefFeatured

PDFRev 4Jul 16, 20241.6 MBFS26_PBEnglish
^{Application Note}
AN13431, NXP PMIC Solution for TI TMS570 Series MCU - Application Note

PDFRev 1Nov 8, 2021186.8 KBAN13431English
^{User Manual}
UM11812, NXP GUI for FS26 Automotive PMIC Family - User Manual

PDFRev 3Jul 24, 20243.2 MBUM11812English
Sign in required
^Brochure
Safety System Basis Chip for Automotive Brochure

PDFRev 15Oct 17, 2023503.1 KBSBCAUTOBRA4English, 日本語
^{White Paper}
NXP HVBMS Reference Design Helps Developers Get Ahead of the Curve - White Paper

PDFRev 1.0Aug 25, 2022914.5 KBHVBMSRDWPEnglish, 中文, 日本語
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Design Resources

Design Files

Quick reference to our design files types.

3 design files

Receive the full breakdown. See the product footprint and more in the eCad file.

^Models
FS26 SMPS Simplis Models

ZIPRev 1.0Apr 29, 2024 17:31:0069.4 KBFS26-SMPS-SIMPLIS-MODELS
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^Calculators
FS26 Power Dissipation Tool Calculation

XLSXRev 7.0Feb 2, 2024 17:32:00103.4 KBFS26-POWER-DISSIPATION-TOOL-CALCULATION
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^Calculators
FS26 SMPS Calculator

XLSMRev 0.9Jan 31, 2024 17:31:00450.8 KBFS26-SMPS-CALCULATOR
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Hardware

Quick reference to our board types.

1-5 of 23 hardware offerings

^{Evaluation and Development Boards}
FS26 Safety SBC Programming Socket BoardFeatured

KITFS26SKTEVM
^{Evaluation and Development Boards}
FS26 Safety SBC Evaluation BoardFeatured

KITFS26AEEVM
^{Complete Solution}
EV Traction Inverter Control Reference Design Gen 3

EV-INVERTERGEN3
Additional hardware available. View our featured partner solutions.
^{Complete Solution}
HVBMS Reference Design Bundle Using ETPL

RD-HVBMSCTBUN
^{Design Concept}
S32K376 Battery Management System (BMS) and Vehicle Control Unit (VCU) PoC Design

S32K376POC
^{Evaluation and Development Boards}
S32K39/37/36 Electrification Microcontrollers Evaluation Board

S32K396-BGA-DC1
^{Evaluation and Development Boards}
S32K344 Evaluation Board for Mobile Robotics with 100BASE-T1 and Six CANFD

MR-CANHUBK344
^{Evaluation and Development Boards}
S32K3X4EVB-T172 Evaluation Board for Automotive General Purpose

S32K3X4EVB-T172
^{Evaluation and Development Boards}
S32K324 Triple Permanent Magnet Synchronous Motor Control (PMSM) Reference Design Board

MCTPTX1AK324
^{Evaluation and Development Boards}
S32K312EVB-Q172 Evaluation Board for Automotive General Purpose

S32K312EVB-Q172
^{Evaluation and Development Boards}
HVBMS Battery Management Unit (BMU)

HVBMS-BMU
^{Evaluation and Development Boards}
S32K344 Brushless Direct Current and Permanent Magnet Synchronous Motor Control Development Kit

MCSPTE1AK344
^{Evaluation and Development Boards}
S32K344-WB Evaluation Board for Automotive General Purpose

S32K344-WB
^{Evaluation and Development Boards}
S32K3X8EVB-Q289 Evaluation Board for Automotive General Purpose

S32K3X8EVB-Q289
^{Evaluation and Development Boards}
S32K388EVB-Q289 Evaluation Board for Automotive General Purpose

S32K388EVB-Q289
^{Evaluation and Development Boards}
S32K344 Motor Control Development Kit for High-Power 48 V Applications

MC_XTM4CK344
^{Reference Design}
S32K358 Battery Management Unit (BMU) for High-Voltage Battery Energy Storage

RD-BESSK358BMU
^{Reference Design}
HVBMS Hardware Reference Design Using CAN FD

HWRD-HVBMSCC
^{Reference Design}
1500 V Battery Energy Storage Reference Design

RD-BESS1500BUN
^{Reference Design}
800 V Battery Management System (BMS) Reference Designs Using ETPL

RD-HVBMSCT800BUN
^{Reference Design}
14 V Battery Management System (BMS) Reference Design, Lead-Acid Replacement

RD33772C14VEVM
^{Reference Design}
S32K3 Automotive Telematics Box (T-Box) Reference Design Board

S32K3-T-BOX
^{Reference Design}
S32K358 Battery Management Unit (BMU) for High Voltage Battery Management System (HVBMS) Reference Design Board

RD-K358BMU

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3 hardware offerings

^{Evaluation and Development Boards}
基于S32K39x的电机控制器控制板

主控芯片为NXP S32K396，SBC芯片为FS2633，均满足功能安全ASIL-D等级；支持12V低压供电系统；与驱动板通过SPI接口通讯，可匹配搭载多种驱动芯片的驱动板；支持AUTOSAR 4.4，方便软件移植，集成；适用于电动汽车电机控制器场景，也可用于方案应用评估。

By Shenzhen Jingyuanjiansan Electronics Co., Ltd Gold Partner
^{Evaluation and Development Boards}
基于S32K39x的电机控制器方案

以S32K39x MCU为主控芯片，本方案核心器件支持功能安全ASIL-D标准，软件采用AUTOSAR 4.2.2架构，集成乘用车主流功能软件，支持UDS、XCP协议，可匹配IGBT、SiC功率器件，接近量产状态，适用于各种乘用车、商用车主驱系统。

By Shenzhen Jingyuanjiansan Electronics Co., Ltd Gold Partner
^{Test Accessories and Debugger}
TRACE32® PowerTrace System for NXP Microcontrollers/Microprocessors

PowerTrace system provides full insights of what an embedded system is doing without impacting its real-time performance. It ensures bringing designs to market faster and...

By Lauterbach GmbH Gold Partner

To find additional partner offerings that support this product, visit our Partner Marketplace.

Software

Quick reference to our software types.

2 software files

^{BSPs and Device Drivers}
Automotive SW - SBC/PMIC - Real Time Drivers

FLEXERARev 1.0Jan 24, 2023 16:55:001 KBSWFSXX-STDSW-D

Download
^{Simulation and Modeling Tools}
NXP GUI for Automotive PMIC Families

Download Options

Note: For better experience, software downloads are recommended on desktop.

Training

9 trainings

^On-Demand
Streamline Your Light Electric Vehicle Application with a 48V Motor Control Solution

47 minEnglish Level: Intermediate
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^On-Demand
Easily Manage Power, System and Safety With Our Safety SBC for Advanced Vehicle Networks

30 minEnglish Level: Beginner
Sign in required

^On-Demand
Next Generation of NXP EV Traction Inverter with S32K39 MCU and FS26 SBC

Learn how to accelerate, de-risk and ease your design for Sic Mosfets with our latest devices on our new EV traction inverter system.

22 minEnglish Level: Beginner
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^On-Demand
High-Voltage (HV) Battery Management System (BMS) Reference Design Based on S32K3 MCU

24 minEnglish Level: Intermediate
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^On-Demand
xEV Solutions for OBC and DCDC

30 minEnglish Level: Beginner
Sign in required

^On-Demand
Improving Traction Inverter Efficiency and Bom with an Advanced, Single-Channel Gate Driver: GD3162

Webinar demonstrating how the GD3162 gate driver enhances taction inverter efficiency with dynamic gate strength and DC link discharge features.

38 minEnglish Level: Beginner
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^On-Demand
Functional Safety Design for S32K3 MCUs

35 minEnglish Level: Intermediate
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^On-Demand
EV Traction Inverter System

45 minEnglish Level: Intermediate
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^On-Demand
S32K39 - Dual Traction Inverter Controller Webinar

Explore the S32K39 MCU Dual Traction Inverter Controller for motor electrification applications and understand its role inside electric vehicles.

29 minEnglish Level: Beginner
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Show All

Safety System Basis Chip with Low Power, for ASIL D Systems

Product Details

Block Diagram

FS26 Safety SBC Block Diagram

Features

Power Management

System Solutions

Functional Safety

Configuration and Enablement

Product Longevity Program

Comparison Table

BYLink System Power Platform

BYLink System Power Platform

PMICs and SBCs for Multi-Vendor Processors

Related products

Applications

Automotive

Buy/Parametrics

Documentation

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FS26, Safety System Basis Chip with Low Power for ASIL D /ASIL B - Product BriefFeatured

Design Resources

Design Files

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FS26 SMPS Simplis Models

FS26 Power Dissipation Tool Calculation

FS26 SMPS Calculator

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Hardware

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FS26 Safety SBC Programming Socket BoardFeatured

FS26 Safety SBC Evaluation BoardFeatured

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