NXP Semiconductors MC33FS8410G0ESR2

Overview

MC33FS8410G0ESR2 from NXP Semiconductors is an ASIL B–capable automotive fail-safe system basis chip (SBC) integrating one VPRE synchronous buck controller, one low-voltage integrated synchronous BUCK1 (1.25 V / 4.5 A), one BUCK3 (2.3 V / 4.5 A), a BOOST converter (5.74 V / 1.5 A peak), and two LDOs (LDO1: 3.3 V / 150 mA; LDO2: 5.0 V / 150 mA). It serves as the primary power management and safety monitor for radar modules, particularly those based on NXP S32R274 MCU.

For engineers reviewing the MC33FS8410G0ESR2 datasheet, MC33FS8410G0ESR2 pinout, MC33FS8410G0ESR2 application, or MC33FS8410G0ESR2 equivalent, this device delivers deterministic power sequencing, fail-safe output (FS0B), SPI/I²C configurability, thermal shutdown with deep fail-safe autoretry (x15), and voltage supervision across six monitoring inputs - critical for functional safety validation in 12 V/24 V ADAS subsystems.

Technical Context

The MC33FS8410G0ESR2 implements a dual-domain safety architecture: a dedicated fail-safe state machine monitors BUCK1, BUCK3, LDO1/LDO2, and external voltage rails via VMON1–VMON4, triggering FS0B assertion and RSTB upon violation of OV/UV thresholds (e.g., VCOREMON UVTH = 88%, OVTH = 112%). Its power-up sequencing assigns BUCK1 to Slot 1, BUCK3 to Slot 0, LDO1 to Slot 2, and LDO2 to Slot 1 - enabling precise timing control for radar SoC boot.

It supports EMC-optimized operation via FSYNC input/output, spread-spectrum modulation, and slew-rate-controlled gate drivers (PRE_GHS/PRE_GLS: PU/PD/130 mA). The device uses OTP-programmed configurations - this variant features VPRE = 3.3 V, BUCK1 = 1.25 V, BUCK3 = 2.3 V, LDO1 = 3.3 V, LDO2 = 5.0 V, and watchdog mode set to Simple WD with FLT_RECOVERY disabled.

Key Specifications

Pinout & Package

MC33FS8410G0ESR2 is housed in HVQFN56 - a thermally enhanced 8 mm × 8 mm × 0.85 mm wettable flank package with 0.5 mm pitch and exposed thermal pad (EP) connected to GNDFS/GND. Pin count: 56 terminals + EP.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar automotive SBC applications.

Compared with MC33FS8410G0ESR2, the G3ESR2 variant adds PSYNC-driven synchronization capability for multi-PMIC radar systems, while the G6ESR2 variant trades tighter voltage tolerances for extended thermal fault recovery - making G0ESR2 optimal for cost-sensitive, single-PMIC radar modules requiring baseline ASIL B compliance without added synchronization overhead.

Availability

MC33FS8410G0ESR2 is available at Aetrix Electronics and suitable for radar sensor modules, ADAS domain controllers, and automotive vision systems requiring stable component supply, long-term automotive qualification, and ASIL B functional safety assurance.

Supply support for MC33FS8410G0ESR2 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor leader specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in functional safety and automotive-grade power management.

The FS84 family - including MC33FS8410G0ESR2 - was designed specifically for ASIL B–compliant radar, vision, and domain controller power systems, delivering integrated safety monitoring, multi-rail regulation, and EMC-robust operation in compact HVQFN packages.

FAQ

What is the functional safety classification of MC33FS8410G0ESR2?

MC33FS8410G0ESR2 is ASIL B–capable per ISO 26262, developed using ASIL B–compliant processes and qualified to AEC-Q100 Grade 1. It includes dedicated safety circuitry - fail-safe state machine, ABIST, voltage supervision on six inputs, and fail-safe output (FS0B) - but does not meet full ASIL D requirements like the FS85 series.

Which voltage rails does MC33FS8410G0ESR2 support out-of-the-box?

MC33FS8410G0ESR2 integrates a VPRE controller (3.3 V), BUCK1 (1.25 V / 4.5 A), BUCK3 (2.3 V / 4.5 A), BOOST (5.74 V / 1.5 A), LDO1 (3.3 V / 150 mA), and LDO2 (5.0 V / 150 mA). BUCK2 is disabled in this variant, consistent with FS8410 device option table.

How is power sequencing controlled on MC33FS8410G0ESR2?

MC33FS8410G0ESR2 uses an eight-slot hardware sequencer: BUCK1 starts/stops in Slot 1, BUCK3 in Slot 0, LDO1 in Slot 2, and LDO2 in Slot 1. Sequencing is fixed by OTP programming - no runtime reconfiguration - ensuring deterministic boot timing for radar SoCs like S32R274.

Does MC33FS8410G0ESR2 support both SPI and I²C interfaces?

Yes, MC33FS8410G0ESR2 supports both SPI (MISO/MOSI/SCLK/CSB) and I²C (SCL/SDA) with CRC-protected 32-bit command protocol. I²C address is fixed at 0x20; SPI operates at up to 10 MHz. Interface selection is made at boot via strap pins or OTP configuration.

What thermal protection behavior does MC33FS8410G0ESR2 implement?

Upon thermal shutdown (TSD), MC33FS8410G0ESR2 disables BUCK1, BUCK3, LDO1, and LDO2 while asserting FS0B and RSTB. It enters deep fail-safe mode with x15 autoretry - attempting recovery up to 15 times before latching into permanent fail-safe state - enhancing reliability in transient thermal overload scenarios.