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NXP Semiconductors MC33FS8415GYKSR2
- Part No.:
- MC33FS8415GYKSR2
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Management - Specialized
- Package:
- 56-VFQFN Exposed Pad
- Datasheet:
-
MC33FS8415GYKSR2.pdf
- Description:
- SAFETY POWER MANAGEMENT IC, QFN5
- Quantity:
- Payment:
- Shipping:
Inventory:4,246
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Product details
Overview
MC33FS8415GYKSR2 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 3.6 A peak per buck rail, supports 60 V DC input, and features SPI/I²C control with CRC, fail-safe output (FS0B), and power-good/reset signaling - deployed in radar modules with NXP S32R294 + TEF810x.
For engineers reviewing the MC33FS8415GYKSR2 datasheet, MC33FS8415GYKSR2 pinout, MC33FS8415GYKSR2 application, or MC33FS8415GYKSR2 equivalent, key selection criteria include its ASIL B safety certification, OTP-configurable multi-rail sequencing (Slot 1 for BUCK1, Slot 0 for BUCK2, Slot 0 for BUCK3), integrated voltage supervision (VCOREMON, VMON1–VMON4), and support for frequency synchronization (FIN/FOUT) to meet automotive EMC requirements.
Technical Context
The MC33FS8415GYKSR2 implements a hierarchical safety architecture with dedicated monitoring circuitry, challenger watchdog, and fail-safe state machine compliant with ISO 26262 ASIL B. Its power management includes independent control of VPRE (3.3 V, 50 mV/µs slew rate), BUCK1 (0.825 V, 4.5 A peak), BUCK2 (disabled), BUCK3 (2.5 V, 4.5 A peak), BOOST (5.0 V), LDO1 (1.8 V, 400 mA), and LDO2 (3.3 V, 400 mA).
It supports dual communication interfaces (SPI/I²C at 0x20 address), external wake-up detection (WAKE1/WAKE2), analog multiplexing (AMUX), and power synchronization (PSYNC) for coordinated operation with other FS8x devices. Safety features include ABIST, LBIST, PGOOD/RSTB assertion on fault, and deep fail-safe autoretry (infinite cycles).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ASIL Level | ASIL B certified per ISO 26262; includes dedicated FCCU, watchdog, and fail-safe output driver |
| Input Voltage Range | 60 V DC max; supports 12 V and 24 V automotive battery systems with reverse-battery protection diodes on VSUP1/VSUP2 |
| VPRE Output | 3.3 V fixed (OTP-configured); synchronous buck controller with external MOSFETs, 80 mV current limit, 50 mV/µs slope compensation |
| BUCK1 Output | 0.825 V, 4.5 A peak; dedicated MCU core supply with SVS capability and soft-start (7.81 mV/µs) |
| BUCK3 Output | 2.5 V, 4.5 A peak; enabled by default, starts/stops in Power Sequencing Slot 0 |
| LDO1/LDO2 | 1.8 V / 3.3 V outputs, each rated 400 mA DC; used for MCU I/O and ADC supply with independent voltage monitoring |
| Fail-Safe Output | FS0B active-low open-drain output; asserts during detected faults (TSD, OV/UV, watchdog timeout) to trigger system-level safety response |
Pinout & Package
MC33FS8415GYKSR2 uses HVQFN56 package: plastic thermal-enhanced very thin quad flat no-lead package, 8 mm × 8 mm × 0.85 mm body, 0.5 mm pitch, wettable flank (KS suffix), exposed pad (EP) connected to GNDFS/GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| WAKE1 / WAKE2 | Wake-up input | Dual analog/digital inputs with external series resistor support; initiate device wake from OFF mode (10 µA IQ) |
| FS0B | Fail-safe output | Active-low open-drain signal asserting on internal fault detection; drives external safety controller or MCU interrupt |
| PGOOD / RSTB | Power status outputs | Active-low signals indicating stable regulation (PGOOD) and initiating MCU reset (RSTB); require VDDIO pull-up |
| SCL / SDA / MISO / MOSI / SCLK / CSB | Serial interface | I²C (0x20) or SPI interface with CRC; enables configuration, monitoring, and fault reporting |
| VCOREMON / VMON1–VMON4 | Voltage monitor inputs | Analog inputs for real-time supervision of BUCK1 output and four external rails; configurable OV/UV thresholds and deglitch times |
| BUCK1_FB / BUCK3_FB / PRE_FB | Feedback nodes | Resistive divider inputs for closed-loop regulation of BUCK1 (0.825 V), BUCK3 (2.5 V), and VPRE (3.3 V) |
Key Features
| Feature | Design Value |
|---|---|
| OTP-programmable power sequencing | Configurable start/stop slots per regulator (e.g., BUCK1 in Slot 3, BUCK3 in Slot 0) enable precise timing alignment with MCU boot requirements |
| Integrated voltage supervision | Six independent monitors (VCOREMON, VMON1–VMON4, VDDIOMON) with programmable OV/UV thresholds and 5–45 µs deglitch windows ensure robust rail integrity detection |
| EMC-optimized switching | Frequency synchronization (FIN/FOUT), spread spectrum, and slew rate control reduce radiated emissions in radar and ADAS ECU environments |
| Fail-safe state machine | Dedicated hardware FSM asserts FS0B and disables regulators on critical faults (TSD, overcurrent, undervoltage), supporting ASIL B partitioning |
| Multi-interface communication | Simultaneous SPI and I²C support with CRC error checking enables redundant or flexible host MCU integration without protocol lock-in |
Applications
| Radar Sensor Power Management | ADAS Domain Controller Supply |
|---|---|
Use Scenario: Powers NXP S32R294 MCU and TEF810x radar transceiver in 12 V/24 V automotive radar modules. IC Role / Device Role / Timing Role: Primary SBC delivering VPRE (3.3 V), BUCK1 (0.825 V core), BUCK3 (2.5 V), LDO1 (1.8 V), and LDO2 (3.3 V) with synchronized startup and fail-safe shutdown. Use Value: Enables single-chip power solution meeting ASIL B requirements while reducing board area and eliminating discrete supervisor ICs. | Use Scenario: Supplies multiple voltage domains in centralized ADAS domain controllers integrating vision, radar, and sensor fusion processing. IC Role / Device Role / Timing Role: Provides sequenced, monitored, and fail-safe power to heterogeneous SoCs (e.g., S32G), companion PMICs, and high-speed interfaces (MIPI, Ethernet PHY). Use Value: Reduces system-level BOM count and simplifies functional safety validation through integrated monitoring and deterministic fault response. |
| Infotainment Head Unit Power | Camera Module Power System |
Use Scenario: Delivers regulated rails to application processors, display drivers, audio codecs, and CAN transceivers in automotive infotainment head units. IC Role / Device Role / Timing Role: Manages VPRE, BUCK1 (core), BUCK3 (I/O), BOOST (5 V for USB), and dual LDOs with configurable sequencing and voltage supervision. Use Value: Supports hot-plug resilience and brown-out recovery via deep fail-safe autoretry and independent rail monitoring. | Use Scenario: Powers NXP S32V-based camera modules with image signal processors, MIPI CSI-2 transmitters, and LED flash drivers. IC Role / Device Role / Timing Role: Supplies BUCK1 (1.03125 V core), BUCK3 (3.3 V I/O), LDO1 (1.8 V), LDO2 (3.3 V), and BOOST (5 V) with soft-start and dynamic voltage scaling. Use Value: Eliminates need for external sequencing logic and discrete supervisors, lowering design complexity and improving time-to-market. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fail-safe SBC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC33FS8410G0ES | ASIL B; same VPRE/BUCK1/BUCK3 topology but lacks FCCU safety monitor and has only two VMON inputs (VMON1/VMON2) | Targeted at cost-sensitive radar or camera modules where full FCCU monitoring is not required | Select when ASIL B compliance is sufficient and simplified safety monitoring reduces system overhead |
| MC33FS8510A2ES | ASIL D certified; adds FCCU2, ERRMON, enhanced ABIST coverage, and extended VMON supervision (VMON1–VMON4) | Required for domain controllers or safety-critical ADAS functions demanding ASIL D decomposition | Choose when system-level ASIL D allocation mandates higher diagnostic coverage and dual-channel monitoring |
Compared with MC33FS8410G0ES, MC33FS8415GYKSR2 adds FCCU and full four-rail voltage monitoring (VMON1–VMON4), enabling more granular fault isolation; versus MC33FS8510A2ES, it trades ASIL D certification and ERRMON for lower cost and reduced diagnostic overhead while retaining identical regulator configuration and sequencing flexibility.
Availability
MC33FS8415GYKSR2 is available at Aetrix Electronics and suitable for radar sensor modules, ADAS domain controllers, and infotainment head units requiring stable component supply, automotive-grade qualification (AEC-Q100 Grade 1), and long-term lifecycle support.
Supply support for MC33FS8415GYKSR2 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 power management.
The FS84 product line delivers ASIL B–certified system basis chips optimized for radar, vision, and infotainment ECUs - integrating multi-rail SMPS, LDOs, fail-safe logic, and safety monitoring to simplify automotive ECU power architecture.
FAQ
What safety certifications does the MC33FS8415GYKSR2 hold?
The MC33FS8415GYKSR2 is developed in compliance with ISO 26262 and qualified to AEC-Q100 Grade 1 (−40 °C to +125 °C). It achieves ASIL B capability through integrated safety mechanisms including a fail-safe state machine, challenger watchdog, ABIST/LBIST, and dedicated monitoring circuitry - all documented in the FS84_FS85C product data sheet Rev. 12.0.
Does the MC33FS8415GYKSR2 support both SPI and I²C interfaces simultaneously?
Yes, the MC33FS8415GYKSR2 supports either SPI or I²C communication - not both simultaneously. The interface is selected at power-up via hardware strapping or OTP configuration. I²C uses address 0x20; SPI operates with standard four-wire protocol (MOSI, MISO, SCLK, CSB) and includes CRC for command integrity verification in MC33FS8415GYKSR2 firmware operations.
What is the function of the PSYNC pin on the MC33FS8415GYKSR2?
The PSYNC pin on the MC33FS8415GYKSR2 serves as a bidirectional power synchronization node. It allows two MC33FS8415GYKSR2 devices - or one MC33FS8415GYKSR2 and an external PMIC - to synchronize switching frequencies, reducing beat-frequency noise and improving system-level EMC performance. Its operation is configurable via OTP and requires external pull-up/pull-down resistors depending on master/slave role assignment.
How is the fail-safe output (FS0B) triggered in the MC33FS8415GYKSR2?
The FS0B output on the MC33FS8415GYKSR2 is an active-low open-drain signal asserted by the internal fail-safe state machine upon detection of critical faults including thermal shutdown (TSD), overvoltage/undervoltage on monitored rails (VCOREMON, VMON1–VMON4), watchdog timeout, or internal logic errors. It remains asserted until fault clearance and manual reset or power cycle, ensuring deterministic safety response in MC33FS8415GYKSR2-based systems.
Can the MC33FS8415GYKSR2 be used in 24 V commercial vehicle applications?
Yes, the MC33FS8415GYKSR2 supports up to 60 V DC input and is qualified for automotive Grade 1 (−40 °C to +125 °C), making it suitable for 24 V commercial vehicle applications such as truck radar, ADAS gateways, and off-road infotainment. External reverse-battery protection diodes are mandatory on VSUP1 and VSUP2 pins, and system-level EMC validation must account for higher bus transients typical in heavy-duty vehicle environments.
MC33FS8415GYKSR2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 56-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- 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)
MC33FS8415GYKSR2 FAQ
1.How can I place an order for MC33FS8415GYKSR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC33FS8415GYKSR2 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 MC33FS8415GYKSR2 reliable?
The price and inventory of MC33FS8415GYKSR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC33FS8415GYKSR2 is usually 5 days.
3.What payment methods are accepted for MC33FS8415GYKSR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC33FS8415GYKSR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC33FS8415GYKSR2?
MC33FS8415GYKSR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC33FS8415GYKSR2 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 MC33FS8415GYKSR2?
For technical support, including MC33FS8415GYKSR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC33FS8415GYKSR2 requirements.
6.How does Aetrix verify that MC33FS8415GYKSR2 is sourced from the original manufacturer or authorized distributors?
All MC33FS8415GYKSR2 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 MC33FS8415GYKSR2 meets industry standards.
7.What is the process for return or replacement of MC33FS8415GYKSR2?
All MC33FS8415GYKSR2 units undergo pre-shipment inspection (PSI). If there is an issue with MC33FS8415GYKSR2, 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 MC33FS8415GYKSR2 part is unused and in its original packaging.
Return procedure for MC33FS8415GYKSR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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