NXP Semiconductors FS26 PMIC

The FS26 family of automotive safety system basis chip devices offer multiple power supply options designed to support entry and mid-range safety microcontrollers like the S32K3 series and can support other microcontrollers targeting automotive electrification.

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.

ISO 26262 compliant, covering ASIL B and ASIL D safety integrity levels. 

Key features

• Power Management / 40 V DC maximum input voltage
• System Solutions / System added value to save space and reduce complexity
• Functional Safety / Scalable portfolio from automotive safety levels ASIL B to ASIL D
• ISO 26262 compliant, covering ASIL B and ASIL D safety integrity levels

Additional 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, V_ref
• 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

Applications

• Active suspension
• Automotive advanced exterior lighting
• Automotive zone controller
• Battery Management System (BMS)
• Electric Power Steering (EPS)
• Electric pumps
• Electric Vehicle (EV) traction inverter
• Heating Ventilation and Air Conditioning (HVAC)
• Hybrid Electric Vehicle (HEV) applications
• Transmission and gearbox