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NXP Semiconductors MC33FS8415GYKS
- Part No.:
- MC33FS8415GYKS
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Management - Specialized
- Package:
- 56-VFQFN Exposed Pad
- Datasheet:
-
MC33FS8415GYKS.pdf
- Description:
- SAFETY POWER MANAGEMENT IC, QFN5
- Quantity:
- Payment:
- Shipping:
Inventory:1,229
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Product details
Overview
MC33FS8415GYKS 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 configurable output voltages (e.g., BUCK1 at 0.825 V, BUCK3 at 2.5 V), supports up to 4 voltage monitoring inputs, and operates with 2.22 MHz switching frequency for radar power supply in 12 V/24 V vehicle systems.
For engineers reviewing the MC33FS8415GYKS datasheet, MC33FS8415GYKS pinout, MC33FS8415GYKS application, or MC33FS8415GYKS equivalent, this device is selected for radar subsystems requiring functional safety compliance (ISO 26262), multi-rail sequencing, EMC-optimized frequency synchronization, and fail-safe state machine control with deep fail-safe autoretry.
Technical Context
The MC33FS8415GYKS implements a deterministic fail-safe state machine with dedicated monitoring circuitry for ASIL B compliance, including independent voltage supervision (VCOREMON, VMON1–VMON4), thermal shutdown response, and configurable power-good/reset signaling. Its architecture integrates SPI/I2C interfaces with CRC for configuration and diagnostics, plus PSYNC for inter-device power synchronization.
It features a VPRE controller with external MOSFET gate drivers (PRE_GHS/PRE_GLS), integrated BUCK1–BUCK3 regulators with multiphase capability (BUCK1+BUCK2), and BOOST with internal low-side switch - all coordinated via OTP-programmed power-up sequencing across 7 time slots and soft-start ramp rates (e.g., 7.81 mV/µs for BUCK1).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ASIL Level | ASIL B compliant per ISO 26262; includes challenger watchdog, built-in self-test, and fail-safe output driver |
| Input Voltage Range | 60 V DC max; supports 12 V and 24 V automotive battery rails with reverse-battery protection diodes on VSUP1/VSUP2 |
| BUCK1 Output | 0.825 V @ 4.5 A peak; dedicated MCU core supply with SVS capability and slot-3 power sequencing |
| BUCK3 Output | 2.5 V @ 4.5 A peak; enabled by default, starts/stops in slot 0, soft-start rate 10.41 mV/µs |
| Switching Frequency | 2.22 MHz fixed for BUCK1/BUCK2/BUCK3; enables compact magnetics and EMI filtering in radar modules |
| Voltage Monitoring | Four analog inputs (VMON1–VMON4); each configurable for OV/UV thresholds (e.g., 104.5% OVTH, 95% UVTH) with 25 µs delay |
| Fail-Safe Behavior | Deep fail-safe mode with infinite autoretry; FAIL-SAFE output (FS0B) asserts active-low on critical fault detection |
Pinout & Package
MC33FS8415GYKS uses HVQFN56 package: plastic thermal-enhanced very thin quad flat package, 8 mm × 8 mm × 0.85 mm body, 0.5 mm pitch, wettable flank (dimple type for KS suffix), exposed pad (EP) connected to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| WAKE1 / WAKE2 | Wake-up input | Dual analog/digital wake sources with external series resistor requirement for global pin use |
| VCOREMON | Core voltage monitor input | Connected directly to BUCK1 output for MCU core supply supervision |
| FS0B | Fail-safe output | Active-low open-drain signal indicating safety-critical failure; drives external MCU reset or isolation logic |
| PSYNC | Power sync I/O | Enables synchronized switching of multiple FS84/FS85 devices or external PMIC to reduce system-wide EMI peaks |
| PRE_GHS / PRE_GLS | VPRE gate drivers | High-side and low-side gate drive outputs for external MOSFETs in primary buck controller stage |
| BUCK1_SW / BUCK2_SW / BUCK3_SW | Switching node outputs | Each connects to respective inductor; requires proper layout for thermal and EMI performance |
| VMON1–VMON4 | Voltage monitoring inputs | Four independent analog inputs supporting configurable OV/UV detection with programmable delay and threshold |
| EP | Exposed pad | Thermal and electrical ground for BUCK1/BUCK2/BUCK3 low-side switches; must be soldered to PCB GND plane |
Key Features
| Feature | Design Value |
|---|---|
| OTP-configurable power sequencing | Seven programmable time slots enable precise start/stop timing across all regulators (e.g., BUCK1 in slot 3, BUCK3 in slot 0) |
| EMC optimization | Integrated frequency synchronization (FIN/FOUT), spread spectrum, slew rate control, and manual tuning for radar-grade EMI compliance |
| Functional safety architecture | Dedicated ABIST/LBIST, dual FCCU inputs, ERRMON, and fail-safe state machine with infinite autoretry for ASIL B systems |
| Multi-interface control | 32-bit SPI or I2C with CRC error checking; supports real-time configuration, monitoring, and fault reporting in safety-critical environments |
| Low-power OFF mode | 10 µA typical quiescent current enables extended battery-off operation in always-on radar subsystems |
Applications
| Radar Power Management | ADAS Domain Controller Supply |
|---|---|
Use Scenario: Powers NXP S32R294 + TEF810x/TEF82xx radar SoC and RF front-end in 12 V/24 V automotive platforms. IC Role / Device Role / Timing Role: Primary SBC providing sequenced, monitored, and fail-safe power to radar processor core (BUCK1), I/O (LDO1/LDO2), and RF bias (BOOST/BUCK3). Use Value: Enables ASIL B-compliant radar operation with deep fail-safe recovery, voltage margining, and synchronized switching to meet CISPR 25 Class 5 emission limits. | Use Scenario: Supplies multiple voltage rails to domain controllers integrating vision, radar, and sensor fusion processing. IC Role / Device Role / Timing Role: Centralized power manager delivering BUCK1 (core), BUCK3 (interface), LDO1/LDO2 (peripheral I/O), and BOOST (PHY bias) with coordinated sequencing. Use Value: Reduces bill-of-materials and PCB area versus discrete regulator solutions while maintaining functional safety and diagnostic coverage per ISO 26262. |
| Vision System Power | Infotainment Processor Support |
Use Scenario: Powers mono/stereo camera modules with NXP S32V processors and image signal processors. IC Role / Device Role / Timing Role: Provides BUCK1 (1.03125 V core), BUCK3 (3.3 V interface), and LDO2 (3.3 V ADC reference) with soft-start and voltage supervision. Use Value: Ensures clean, low-noise power delivery to high-speed imaging pipelines and analog front-ends, minimizing image artifacts and startup glitches. | Use Scenario: Supplies power to infotainment head units with application processors, display drivers, and audio codecs. IC Role / Device Role / Timing Role: Delivers BUCK1 (1.2 V core), BUCK3 (1.8 V memory), LDO1 (1.8 V I/O), and BOOST (5.0 V display backlight) with thermal-aware shutdown behavior. Use Value: Supports dynamic voltage scaling and multi-rail sequencing required for power-efficient multimedia SoCs without compromising safety monitoring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fail-safe power management applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC33FS8410G0KS | Lacks FCCU monitoring inputs and supports only up to 2 voltage monitors (VMONx); no BUCK3 regulator | Suitable for simpler radar or camera modules without external IC error monitoring or triple-buck requirements | Select when ASIL B safety monitoring depth and BUCK3 rail are not required; lower cost and smaller feature set |
| MC33FS8510A2ES | ASIL D rated; adds FCCU1/FCCU2, ERRMON, and enhanced ABIST; supports up to 4 VMON inputs and BUCK3 | Targeted for domain controllers requiring higher safety integrity and dual-MCU monitoring in ADAS systems | Choose for ASIL D architectures needing deeper diagnostic coverage, external IC monitoring, and full fail-safe state machine redundancy |
Compared with MC33FS8410G0KS, MC33FS8415GYKS adds BUCK3 and FCCU support for expanded radar subsystem integration; versus MC33FS8510A2ES, it provides ASIL B compliance at lower complexity and cost while retaining identical pinout and OTP configurability for radar-specific use cases.
Availability
MC33FS8415GYKS is available at Aetrix Electronics and suitable for radar sensor modules, ADAS domain controllers, and automotive vision systems requiring stable component supply, long-term lifecycle support, and AEC-Q100 Grade 1 qualification.
Supply support for MC33FS8415GYKS 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 microcontrollers and power management.
The FS84 product line delivers ASIL B–compliant system basis chips optimized for radar, vision, and ADAS subsystems - emphasizing functional safety, EMC robustness, and flexible OTP-based configuration for automotive Tier 1 suppliers.
FAQ
What is the primary safety certification level of the MC33FS8415GYKS?
The MC33FS8415GYKS is ASIL B capable and developed in compliance with ISO 26262 for automotive functional safety. It includes dedicated safety features such as a fail-safe output (FS0B), challenger watchdog, built-in self-test (ABIST/LBIST), and voltage/thermal monitoring with configurable thresholds - all validated per ASIL B requirements in the FS84 family.
Does the MC33FS8415GYKS support multi-phase operation between its buck converters?
Yes, the MC33FS8415GYKS supports multiphase operation between BUCK1 and BUCK2 to extend current capability up to 7.2 A peak on a single rail. This is enabled via OTP configuration and phase-shifting control (e.g., BUCK1 delay 6, BUCK2 delay 0), allowing interleaved switching for reduced input/output ripple and improved thermal distribution in high-current radar applications.
How does the MC33FS8415GYKS handle thermal faults across its regulators?
Upon thermal shutdown (TSD), the MC33FS8415GYKS independently disables affected regulators - BUCK1, BUCK2, BUCK3, BOOST, LDO1, and LDO2 - while asserting diagnostic flags and optionally triggering deep fail-safe mode. For example, BUCK1 shutdown + DFS occurs on overtemperature, halting core supply and activating the fail-safe state machine to isolate faults and initiate autoretry sequences.
What interface options are available for configuring and monitoring the MC33FS8415GYKS?
The MC33FS8415GYKS supports both 32-bit SPI and I2C interfaces with CRC error checking for configuration, real-time monitoring, and fault reporting. It uses I2C address 0x20 and provides dedicated pins (SCL/SDA, MISO/MOSI/SCLK/CSB) - enabling seamless integration with host MCUs in radar and ADAS systems without requiring additional protocol translation hardware.
Is the MC33FS8415GYKS pin-compatible with other devices in the FS84/FS85 family?
Yes, all FS84 and FS85 devices, including the MC33FS8415GYKS, are pin-to-pin and software compatible. This allows hardware reuse across ASIL B (FS84) and ASIL D (FS85) designs, and simplifies migration between variants like MC33FS8410G0KS or MC33FS8510A2ES - provided the PCB layout accommodates the HVQFN56 footprint and thermal pad requirements.
MC33FS8415GYKS 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)
MC33FS8415GYKS FAQ
1.How can I place an order for MC33FS8415GYKS through Aetrix?
Please submit a Request for Quotation (RFQ) for MC33FS8415GYKS 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 MC33FS8415GYKS reliable?
The price and inventory of MC33FS8415GYKS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC33FS8415GYKS is usually 5 days.
3.What payment methods are accepted for MC33FS8415GYKS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC33FS8415GYKS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC33FS8415GYKS?
MC33FS8415GYKS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC33FS8415GYKS 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 MC33FS8415GYKS?
For technical support, including MC33FS8415GYKS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC33FS8415GYKS requirements.
6.How does Aetrix verify that MC33FS8415GYKS is sourced from the original manufacturer or authorized distributors?
All MC33FS8415GYKS 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 MC33FS8415GYKS meets industry standards.
7.What is the process for return or replacement of MC33FS8415GYKS?
All MC33FS8415GYKS units undergo pre-shipment inspection (PSI). If there is an issue with MC33FS8415GYKS, 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 MC33FS8415GYKS part is unused and in its original packaging.
Return procedure for MC33FS8415GYKS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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