NXP MC33FS8430G4ESR2

The FS85/FS84 device family is developed according to ASIL D processes, with FS84 supporting ASIL B and FS85 supporting ASIL D. All device options are pin-to-pin and software compatible. The FS85/FS84 is an automotive functional safety multi-output power IC focused on vision, ADAS domain controllers, radio, and infotainment applications. It integrates multiple switch-mode and linear voltage regulators. External frequency synchronization input and output are provided to optimize system EMC performance. The FS85/FS84 incorporates enhanced safety features with fail-safe outputs, forming part of a safety-oriented system partition that covers ASIL B and ASIL D safety integrity levels. It is developed in accordance with ISO 26262 and qualified to AEC-Q100 rev H (Grade 1, MSL3). Multiple device versions are available, offering selection of output rail count, output voltage settings, operating frequency, and power-up sequencing to address a wide range of applications.

• 60 V DC maximum input voltage, suitable for 12 V and 24 V applications
• VPRE synchronous buck controller with external MOSFET. Configurable output voltage, switching frequency, and current capability up to 10 A peak.
• Low-voltage integrated synchronous BUCK1 converter dedicated to MCU core supply with SVS capability. Configurable output voltage and current capability up to 3.6 A peak.
• Low-voltage integrated synchronous BUCK2 converter. Configurable output voltage and current capability up to 3.6 A peak. Multiphase capability with BUCK1 to extend current capability up to 7.2 A peak on a single rail. Static voltage scaling capability.
• Low-voltage integrated synchronous BUCK3 converter. Configurable output voltage and current capability up to 3.6 A peak.
• BOOST converter with integrated low-side switch. Configurable output voltage and maximum input current up to 1.5 A peak.
• EMC optimization techniques including SMPS frequency synchronization, spread spectrum, slope control, and manual frequency tuning
• 2x LDO regulators for MCU IOs and ADC supply, external PHY. Configurable output voltage and current capability up to 400 mA DC.
• Shutdown mode (power-off) with ultra-low quiescent current (typical 10 µA)
• 2x input pins for wake-up detection and battery voltage sensing
• Device control via 32-bit SPI or I2C interface with CRC
• Power synchronization pin for operating 2x FS85 devices or FS85 with external PMIC
• Scalable portfolio from ASIL B to ASIL D with independent monitoring circuit, dedicated MCU monitoring interface, simple and challenger watchdog functions, power good, reset and interrupt, built-in self-test, fail-safe output
• Configuration via OTP programming. Prototype-enabled to support customized settings during project development in engineering mode.

• Vision (monocular camera, stereo camera, night vision, etc.)
• ADAS domain controller
• Infotainment
• V2X