NXP Semiconductors MC33FS8410G0ES

Overview

MC33FS8410G0ES from NXP Semiconductors is an ASIL B–capable automotive fail-safe system basis chip (SBC) integrating a VPRE synchronous buck controller, one integrated low-voltage synchronous BUCK1 (1.25 V, 4.5 A peak), one integrated BUCK3 (2.3 V, 4.5 A peak), 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, especially those using NXP S32R274 MCU.

For engineers reviewing the MC33FS8410G0ES datasheet, MC33FS8410G0ES pinout, MC33FS8410G0ES application, or MC33FS8410G0ES equivalent, this device requires attention to its OTP-configured BUCK1/BUCK3 voltage settings, fail-safe state machine behavior, PSYNC interface for multi-device synchronization, and ASIL B safety partitioning with dedicated monitoring inputs (FCCU1/FCCU2, VMONx).

Technical Context

The MC33FS8410G0ES implements a deterministic fail-safe state machine compliant with ISO 26262 ASIL B, featuring independent monitoring circuitry, challenger watchdog, and built-in self-test (ABIST/LBIST). Its power architecture includes three switching regulators (VPRE, BUCK1, BUCK3) and one BOOST, all operating at 2.22 MHz with configurable phase shifting and soft-start ramp rates (e.g., BUCK1 DVS = 7.81 mV/µs).

It supports dual communication interfaces (SPI/I²C, I²C address 0x20), external frequency synchronization (FIN/FOUT), and power synchronization (PSYNC) for coordinated operation with other FS8x devices or external PMICs. Safety-critical functions include VCOREMON, VDDIOMON, four VMON inputs, PGOOD, RSTB, and open-drain FS0B fail-safe output.

Key Specifications

Pinout & Package

MC33FS8410G0ES is housed in HVQFN56 package (8 mm × 8 mm × 0.85 mm, 0.5 mm pitch, wettable flank), with exposed thermal pad (EP) connected to GNDFS/GND.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar fail-safe power management applications.

Compared with MC33FS8410G0ES, MC33FS8415G0ES extends safety monitoring without changing power topology, while MC33FS8510A0ES upgrades to ASIL D with added diagnostic infrastructure-neither offers pin-to-pin compatibility, but both share identical HVQFN56 footprint and core regulator architecture.

Availability

MC33FS8410G0ES is available at Aetrix Electronics and suitable for radar sensor modules, ADAS domain controllers, and automotive gateways requiring stable component supply, AEC-Q100 Grade 1 qualification, and long-term automotive lifecycle support.

Supply support for MC33FS8410G0ES 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 company specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with leadership in automotive processors and power management ICs.

The FS84 product line delivers ASIL B–certified system basis chips optimized for radar, vision, and domain controller power architectures, emphasizing functional safety, EMC robustness, and integration density.

FAQ

What is the ASIL rating and safety certification status of the MC33FS8410G0ES?

The MC33FS8410G0ES is ASIL B capable per ISO 26262, developed using ASIL B-compliant processes and qualified to AEC-Q100 Grade 1 (−40 °C to +125 °C). It includes dedicated safety features such as FCCU1/FCCU2 monitoring inputs, fail-safe state machine, ABIST/LBIST, and configurable PGOOD/RSTB/FS0B signaling - all documented in the FS84_FS85C product data sheet Rev. 12.0.

Does the MC33FS8410G0ES support external frequency synchronization?

Yes, the MC33FS8410G0ES supports external frequency synchronization via FIN (input) and FOUT (output) pins, enabling system-level EMC optimization. It also includes PSYNC for power synchronization between multiple FS8x devices or with external PMICs - all confirmed in the block diagram and pin description sections of the official datasheet.

What are the configured output voltages and current capabilities for BUCK1 and BUCK3 in the MC33FS8410G0ES?

In the MC33FS8410G0ES OTP configuration, BUCK1 delivers 1.25 V at up to 4.5 A peak, and BUCK3 delivers 2.3 V at up to 4.5 A peak. Both operate at 2.22 MHz with DVS soft-start ramps of 7.81 mV/µs (BUCK1) and 10.41 mV/µs (BUCK3), as specified in Table 4.1 of the FS84_FS85C datasheet.

How does the fail-safe output (FS0B) behave during fault conditions?

The FS0B pin on the MC33FS8410G0ES is an open-drain active-low fail-safe output that asserts during critical faults including overtemperature (TSD), overvoltage/undervoltage on monitored rails (VCOREMON, VDDIOMON, VMON1–VMON4), and safety state machine errors. Its behavior is deterministic and documented in the "Fail-safe OTP flavors" section, where FS0B activation triggers external safety actions without MCU intervention.

Is the MC33FS8410G0ES pin-compatible with other FS84 variants like MC33FS8400G0ES or MC33FS8430G0ES?

No, the MC33FS8410G0ES is not fully pin-compatible with MC33FS8400G0ES or MC33FS8430G0ES. While all share the HVQFN56 package and core pinout, differences exist in enabled regulators and monitoring inputs - e.g., MC33FS8410G0ES enables BUCK3 and disables BUCK2, whereas MC33FS8430G0ES enables BUCK2 and BUCK3. Pin functionality for unused rails (e.g., BUCK2_FB, BUCK2_SW) is marked N/C in MC33FS8410G0ES per Figure 3.