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NXP Semiconductors MC33FS8415GYES
- Part No.:
- MC33FS8415GYES
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Management - Specialized
- Package:
- 56-VFQFN Exposed Pad
- Datasheet:
-
MC33FS8415GYES.pdf
- Description:
- SAFETY POWER MANAGEMENT IC, QFN5
- Quantity:
- Payment:
- Shipping:
Inventory:3,587
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Product details
Overview
MC33FS8415GYES from NXP Semiconductors is an ASIL B–capable automotive fail-safe system basis chip (SBC) integrating a VPRE synchronous buck controller, three low-voltage synchronous buck converters (BUCK1/BUCK2/BUCK3), one boost converter, and two LDOs. It delivers up to 10 A peak on VPRE, 4.5 A on BUCK1/BUCK2/BUCK3, and 400 mA on each LDO, with 455 kHz forced-PWM switching and 2.22 MHz high-frequency operation for radar power domains. It is qualified per AEC-Q100 Grade 1 and designed for NXP S32R294 + TEF810x/TEF82xx radar systems in 12 V/24 V automotive applications.
For engineers reviewing the MC33FS8415GYES datasheet, MC33FS8415GYES pinout, MC33FS8415GYES application, or MC33FS8415GYES equivalent, this device supports SPI/I²C configuration, external frequency synchronization (FIN/FOUT), fail-safe output (FS0B), power-good signaling (PGOOD), and integrated voltage supervision across six monitoring inputs (VMON1–VMON4, VCOREMON, VDDIOMON) - critical for functional safety validation in radar domain controllers.
Technical Context
The MC33FS8415GYES implements a dual-mode power management architecture: VPRE operates as an external-MOSFET synchronous buck controller (up to 10 A), while BUCK1, BUCK2, and BUCK3 are fully integrated synchronous buck regulators supporting multi-phase operation (e.g., BUCK1+BUCK2 parallel for 7.2 A). Its fail-safe state machine includes challenger watchdog, ABIST/LBIST, FCCU interface, and deep fail-safe autoretry (infinite cycles).
It features configurable power-up sequencing across eight slots, dynamic voltage scaling (DVS) with soft-start slopes of 7.81 mV/µs (BUCK1/BUCK2) and 10.41 mV/µs (BUCK3), and comprehensive fault detection including overvoltage/undervoltage delay windows (OV_DGLT/UV_DGLT down to 5 µs), thermal shutdown (TSD) response, and fail-safe output assertion on monitored rail faults.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ASIL Level | ASIL B compliant per ISO 26262; includes dedicated safety monitor circuitry and fail-safe output driver |
| Input Voltage Range | 60 V DC max input; supports 12 V and 24 V automotive battery rails with reverse-battery protection diodes required on VSUP1/VSUP2 |
| VPRE Output | Configurable output; MC33FS8415GYES uses 3.3 V VPRE with 80 mV current limit and 50 mV/µs slope compensation |
| BUCK1 Output | 0.825 V @ 4.5 A peak; optimized for S32R294 core supply with SVS capability and slot-3 power sequencing |
| BUCK3 Output | 2.5 V @ 4.5 A peak; enabled by default, starts in slot 0, supports 10.41 mV/µs DVS soft-start |
| LDO1/LDO2 | Both deliver 1.8 V / 3.3 V @ 400 mA DC; used for MCU I/O and ADC supply with independent UV/OV monitoring |
| Safety Features | Fail-safe output (FS0B), PGOOD/RSTB signals, 6-channel voltage supervision (VMON1–VMON4 + VCOREMON + VDDIOMON), infinite-deep-fail-safe autoretry |
Pinout & Package
MC33FS8415GYES is housed in a HVQFN56 package (8 mm × 8 mm × 0.85 mm, 0.5 mm pitch, wettable flank), thermally enhanced with exposed pad (EP) tied to GNDFS/GND. Pin count and function align with FS8415 variant per datasheet Figure 3 and Table 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FS0B (Pin 14) | Fail-safe output | Active-low open-drain signal asserting during safety-critical faults; drives external MCU reset or system shutdown |
| PGOOD (Pin 18) | Power-good indicator | Active-low output confirming all regulated outputs meet UV/OV thresholds; requires external pull-up to VDDIO |
| RSTB (Pin 19) | Reset output | Active-low MCU reset signal; monitors external reset inputs and internal fault conditions |
| VCOREMON (Pin 17) | Core voltage monitor input | Analog input connected directly to BUCK1 output; enables SVS and precise core voltage supervision |
| VMON1–VMON4 (Pins 12,13,15,16) | Voltage monitoring inputs | Four independent analog inputs for external rail supervision (e.g., sensor supplies, PHY voltages) |
| FOUT (Pin 24) | Frequency sync output | Drives external SMPS clock to synchronize switching frequencies and reduce system-level EMC emissions |
| FIN (Pin 20) | Frequency sync input | Accepts external clock reference (e.g., from MCU or master PMIC) to lock internal SMPS timing |
| PSYNC (Pin 38) | Power sync I/O | Enables synchronized startup/shutdown between two FS85 devices or FS8415 + external PMIC |
Key Features
| Feature | Design Value |
|---|---|
| Multi-rail power integration | Combines VPRE controller, three synchronous bucks (BUCK1/2/3), boost, and dual LDOs - eliminates need for 6+ discrete regulators in radar ECU designs |
| Functional safety architecture | Dedicated fail-safe state machine with challenger watchdog, ABIST/LBIST, FCCU interface, and infinite-deep-fail-safe recovery for ASIL B compliance |
| EMC-optimized switching | Supports FIN/FOUT synchronization, spread spectrum, slew rate control, and manual frequency tuning to meet automotive CISPR-25 Class 5 requirements |
| Configurable power sequencing | Eight-slot sequencing engine enables precise start/stop timing across all rails - critical for S32R294 + TEF810x boot order and voltage ramping |
| OTP-programmable variants | Factory-programmed configuration (MC33FS8415GYES) sets fixed VPRE=3.3 V, BUCK1=0.825 V, BUCK3=2.5 V, and infinite fail-safe retry - no runtime reconfiguration needed |
Applications
| Radar Sensor Power Management | ADAS Domain Controller Supply |
|---|---|
|
Use Scenario: Powers NXP S32R294 MCU and TEF810x/TEF82xx radar transceivers in corner/imaging radar modules operating from 12 V/24 V battery. IC Role / Device Role / Timing Role: Primary system basis chip delivering core (0.825 V), I/O (1.8 V/3.3 V), RF bias (3.3 V), and auxiliary (2.5 V) rails with synchronized switching and fail-safe monitoring. Use Value: Enables single-chip power solution meeting ASIL B requirements while reducing board area by >40% versus discrete regulator + supervisor designs. |
Use Scenario: Supplies multiple voltage domains in centralized ADAS domain controllers integrating radar, camera, and vehicle network interfaces. IC Role / Device Role / Timing Role: Centralized power manager coordinating sequencing, voltage supervision, and fail-safe response across heterogeneous SoCs and PHYs via SPI/I²C and PSYNC. Use Value: Eliminates inter-PMIC coordination logic and reduces BOM count by consolidating 8+ power rails and safety monitors into one AEC-Q100 qualified IC. |
| Vision System Power Subsystem | Automotive Gateway Power Hub |
|
Use Scenario: Provides regulated supplies for S32V-based mono/stereo camera modules requiring low-noise, fast-transient LDOs and high-efficiency bucks. IC Role / Device Role / Timing Role: Delivers clean 1.8 V/3.3 V LDO outputs for image sensors and ADCs, plus 1.2 V/1.35 V bucks for vision SoC cores with DVS support. Use Value: Achieves <10 mVpp output ripple on LDOs and <1% load regulation on bucks - preserving image SNR and processing accuracy. |
Use Scenario: Serves as primary power hub in vehicle gateways managing CAN FD, Ethernet AVB, and cellular modem interfaces across mixed-voltage subsystems. IC Role / Device Role / Timing Role: Integrates isolated 5 V/3.3 V LDOs for PHYs, 1.8 V/1.2 V bucks for microcontrollers, and fail-safe signaling for gateway safety state reporting. Use Value: Reduces gateway power design cycle time by providing pre-validated, AEC-Q100-compliant rail generation with built-in diagnostics and logging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive SBC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC33FS8410G3ES | Same FS84 family, but configured for radar with S32R274 MCU; BUCK1=1.25 V, BUCK3=2.3 V, TSD behavior differs (BUCK3 shutdown only) | Targeted at legacy S32R274-based radar; lacks infinite fail-safe retry (x15 only) and uses different power sequencing slots | Select MC33FS8410G3ES only for S32R274 compatibility; MC33FS8415GYES offers broader radar MCU support and stronger fail-safe robustness |
| MC33FS8510A2ES | ASIL D–rated FS85 variant; identical pinout and feature set but with enhanced safety monitoring (FCCU enabled, ERRMON active) and higher qualification rigor | Required for ASIL D domain controllers or safety-critical radar fusion units; adds external IC error monitoring and challenger watchdog | Choose MC33FS8510A2ES when ASIL D decomposition mandates full safety island coverage; MC33FS8415GYES suffices for ASIL B radar sensor nodes |
Compared with MC33FS8410G3ES, MC33FS8415GYES provides superior fail-safe resilience (infinite vs. x15 retry) and S32R294-optimized OTP settings; versus MC33FS8510A2ES, it trades ASIL D certification for lower cost and reduced safety overhead where ASIL B is sufficient.
Availability
MC33FS8415GYES is available at Aetrix Electronics and suitable for radar sensor modules, ADAS domain controllers, and automotive gateway systems requiring stable component supply, AEC-Q100 Grade 1 qualification, and ASIL B functional safety compliance.
Supply support for MC33FS8415GYES 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 product line delivers ASIL B–compliant system basis chips optimized for radar, vision, and infotainment ECUs - enabling compact, safe, and EMC-robust power architectures for next-generation ADAS platforms.
FAQ
What is the primary application target for MC33FS8415GYES?
The MC33FS8415GYES is specifically targeted at radar sensor modules using the NXP S32R294 MCU paired with TEF810x or TEF82xx radar transceivers in 12 V/24 V automotive applications. Its OTP configuration - including 0.825 V BUCK1, 2.5 V BUCK3, and infinite-deep-fail-safe retry - is pre-optimized for this use case, ensuring seamless integration without runtime calibration.
Does MC33FS8415GYES support both SPI and I²C interfaces?
Yes, MC33FS8415GYES supports both SPI and I²C for device configuration and monitoring. It uses standard 4-wire SPI (MISO/MOSI/SCLK/CSB) and 2-wire I²C (SCL/SDA) with fixed addresses (0x20 for I²C, 0x21 for safety registers), enabling flexible host MCU integration whether using high-speed SPI for boot-time setup or low-pin-count I²C for runtime telemetry.
What safety certifications does MC33FS8415GYES hold?
MC33FS8415GYES is developed per ISO 26262 ASIL B requirements and qualified to AEC-Q100 Grade 1 (−40 °C to +125 °C ambient). It includes integrated safety mechanisms such as ABIST/LBIST, challenger watchdog, FCCU interface, six-channel voltage supervision, and fail-safe output (FS0B) - all verified in the FS84 family safety case.
Can MC33FS8415GYES be used in ASIL D systems?
No - MC33FS8415GYES is ASIL B capable only. For ASIL D applications, NXP specifies the FS85 family (e.g., MC33FS8510A2ES), which adds redundant monitoring paths, ERRMON input, and enhanced FCCU functionality. While MC33FS8415GYES shares pinout and software compatibility with FS85 devices, its safety architecture is certified exclusively for ASIL B decomposition.
What is the role of the PSYNC pin on MC33FS8415GYES?
The PSYNC pin (Pin 38) on MC33FS8415GYES serves as a bidirectional power synchronization interface that enables coordinated startup, shutdown, and fault response between two FS85 devices or between MC33FS8415GYES and an external PMIC. This ensures deterministic sequencing across multi-PMIC power domains - essential for complex radar ECUs with distributed voltage rails.
MC33FS8415GYES Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 56-VFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Applications:
- System Basis Chip
- Current - Supply:
- 15mA
- Voltage - Supply:
- 60V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 56-HVQFN (8x8)
MC33FS8415GYES FAQ
1.How can I place an order for MC33FS8415GYES through Aetrix?
Please submit a Request for Quotation (RFQ) for MC33FS8415GYES on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MC33FS8415GYES reliable?
The price and inventory of MC33FS8415GYES are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC33FS8415GYES is usually 5 days.
3.What payment methods are accepted for MC33FS8415GYES?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC33FS8415GYES transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC33FS8415GYES?
MC33FS8415GYES orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC33FS8415GYES order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MC33FS8415GYES?
For technical support, including MC33FS8415GYES datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC33FS8415GYES requirements.
6.How does Aetrix verify that MC33FS8415GYES is sourced from the original manufacturer or authorized distributors?
All MC33FS8415GYES products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MC33FS8415GYES meets industry standards.
7.What is the process for return or replacement of MC33FS8415GYES?
All MC33FS8415GYES units undergo pre-shipment inspection (PSI). If there is an issue with MC33FS8415GYES, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MC33FS8415GYES part is unused and in its original packaging.
Return procedure for MC33FS8415GYES:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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