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NXP Semiconductors MC33FS8510C4KSR2
- Part No.:
- MC33FS8510C4KSR2
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Management - Specialized
- Package:
- 56-VFQFN Exposed Pad
- Datasheet:
-
MC33FS8510C4KSR2.pdf
- Description:
- FS8500 C0
- Quantity:
- Payment:
- Shipping:
Inventory:4,911
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Product details
Overview
MC33FS8510C4KSR2 from NXP Semiconductors is an ASIL D–compliant 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 1.35 V @ 2.6 A (BUCK1), 1.8 V @ 4.5 A (BUCK2), 1.2 V @ 2.6 A (BUCK3), 5.0 V @ 1.5 A (BOOST), and dual 400 mA LDOs. It targets radar systems with NXP S32R234 MCU.
For engineers reviewing the MC33FS8510C4KSR2 datasheet, MC33FS8510C4KSR2 pinout, MC33FS8510C4KSR2 application, or MC33FS8510C4KSR2 equivalent, this device supports SPI/I²C configuration, frequency synchronization (FIN/FOUT), power synchronization (PSYNC), fail-safe output (FS0B), and deep fail-safe autoretry - critical for functional safety validation in ADAS radar power domains.
Technical Context
The MC33FS8510C4KSR2 implements a hierarchical safety architecture with dedicated monitoring circuitry including VCOREMON, VDDIOMON, four VMON inputs, FCCU, ABIST, LBIST, and challenger watchdog. Its fail-safe state machine asserts FS0B on detected faults and supports infinite deep fail-safe autoretry.
It integrates six regulated outputs: VPRE controller (external MOSFETs), BUCK1 (MCU core), BUCK2 (MCU I/O), BUCK3 (peripheral rail), BOOST (PHY supply), and dual LDOs (ADC/sensor bias). All SMPS operate at 2.22 MHz with phase-shifting capability and slew-rate control for EMC optimization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Functional Safety Level | ASIL D compliant per ISO 26262, qualified to AEC-Q100 Grade 1 |
| 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 | 1.35 V @ 2.6 A peak - configured for S32R234 MCU core supply with SVS and soft-start (7.81 mV/µs) |
| BUCK2 Output | 1.8 V @ 4.5 A peak - dedicated to MCU I/O rail with multiphase capability enabled with BUCK1 |
| BOOST Output | 5.0 V @ 1.5 A peak - powers external CAN/lin PHY or radar front-end components |
| LDO Outputs | Dual 400 mA LDOs: LDO1 = 2.5 V, LDO2 = 3.3 V - supply ADC reference and sensor interface circuits |
| Interface | SPI or I²C (address 0x20) with CRC, supporting OTP configuration and real-time register access |
| Fail-Safe Response | FS0B open-drain output asserts low on fault; infinite autoretry mode enabled per OTP setting |
Pinout & Package
MC33FS8510C4KSR2 is housed in HVQFN56 package (8 mm × 8 mm × 0.85 mm, 0.5 mm pitch, wettable flank), thermally enhanced with exposed pad (EP) connected to GNDFS/GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BUCK1_FB | Voltage feedback input | Closes regulation loop for 1.35 V MCU core rail; requires external resistor divider |
| FS0B | Fail-safe output | Active-low open-drain signal indicating safety violation; drives external reset or shutdown logic |
| VCOREMON | Core voltage monitor input | Connected directly to BUCK1 output to enable SVS and over/under-voltage detection (OVTH/UVTH = 112%/88%) |
| PSYNC | Power sync I/O | Enables synchronized switching with second FS85 or external PMIC to reduce system EMI |
| FIN / FOUT | Freq sync input/output | Allows daisy-chained clock alignment across multiple SMPS for spread-spectrum EMC compliance |
| WAKE1 / WAKE2 | Wake-up inputs | Support low-power OFF mode (10 µA quiescent); require external series resistors if used as global wake sources |
| VMON1–VMON4 | Monitoring inputs | Four independent analog inputs for external rail supervision (e.g., MCU IO, sensor supplies, pre-regulator) |
| INTB | Interrupt output | Active-low signal notifying MCU of regulator faults, thermal events, or safety state transitions |
Key Features
| Feature | Design Value |
|---|---|
| VPRE synchronous buck controller | Configurable 3.3 V output with external high-/low-side MOSFETs; supports up to 10 A peak current |
| Multi-phase BUCK1+BUCK2 operation | Extends combined current capability to 7.2 A peak on single rail for high-power radar SoCs |
| EMC-optimized switching | 2.22 MHz fixed-frequency + spread spectrum + slew rate control + FIN/FOUT synchronization |
| OTP-programmable safety settings | Deep fail-safe autoretry count, voltage thresholds (OVTH/UVTH), delay times (TSD response), and monitoring enablement |
| Integrated diagnostics | ABIST/LBIST, FCCU-based MCU error monitoring, ERRMON for external IC failure detection |
| Low-power OFF mode | 10 µA typical quiescent current with wake-up via WAKE1/WAKE2 or SPI activity |
Applications
| Radar Power Management | ADAS Domain Controller Supply |
|---|---|
Use Scenario: Powers NXP S32R234 radar MCU and TEF810x RF transceiver in corner/imaging radar modules. IC Role / Device Role / Timing Role: Primary SBC delivering core (BUCK1), I/O (BUCK2), peripheral (BUCK3), and PHY (BOOST) rails with synchronized switching. Use Value: Enables ASIL D-compliant power sequencing, fail-safe shutdown (FS0B), and diagnostic coverage required for ISO 26262 radar subsystem certification. | Use Scenario: Supplies multi-core domain controller (e.g., S32G) with independent, monitored rails for CPU, GPU, and communication peripherals. IC Role / Device Role / Timing Role: Centralized power hub managing six regulated outputs, voltage supervision (VMON1–VMON4), and safety-critical reset generation (RSTB). Use Value: Reduces BOM count by consolidating discrete regulators and safety monitors while enabling deterministic power-up timing per ASIL D requirements. |
| Automotive Camera System | Battery Monitoring Unit (BMU) |
Use Scenario: Provides clean, sequenced power to S32V vision processor, image sensors, and ISP in mono/stereo camera modules. IC Role / Device Role / Timing Role: Delivers 1.03125 V (BUCK1), 1.8 V (BUCK2), 3.3 V (LDO2), and 5.0 V (BOOST) with soft-start and PGOOD assertion. Use Value: Ensures stable startup under cold-crank conditions (4.9 V VSUP threshold) and supports dynamic voltage scaling for vision processing efficiency. | Use Scenario: Supplies auxiliary microcontroller and precision ADC in battery management systems requiring ultra-low quiescent current. IC Role / Device Role / Timing Role: Operates in OFF mode (10 µA IQ) with wake-on-battery-voltage-event via WAKE1/WAKE2 and VMON inputs. Use Value: Extends system standby time while maintaining ASIL B-compatible monitoring of cell voltage, temperature, and isolation barriers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive SBC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC33FS8510A2KSR2 | Same ASIL D qualification; BUCK1 = 1.025 V @ 2.6 A; no BUCK2; BUCK3 = 1.8 V @ 2.6 A; LDO1 = 5.0 V | Targeted at S32R274-based radar with lower core voltage and no MCU I/O rail requirement | Select when BUCK2 is unnecessary and higher LDO1 voltage (5.0 V) is needed for sensor biasing |
| MC33FS8520A0KSR2 | ASIL D; adds BUCK2 (1.8 V @ 4.5 A); omits BUCK3; LDO1 = 5.0 V; same 2.22 MHz switching | Optimized for domain controllers needing dual high-current rails but no third peripheral rail | Choose when BUCK3 is redundant and LDO1 must supply 5.0 V to external PHY or CAN transceivers |
Compared with MC33FS8510A2KSR2 and MC33FS8520A0KSR2, the MC33FS8510C4KSR2 uniquely provides all three buck converters (BUCK1/BUCK2/BUCK3) plus dual LDOs in a single ASIL D package - enabling full radar SoC power delivery without supplemental regulators.
Availability
MC33FS8510C4KSR2 is available at Aetrix Electronics and suitable for radar modules, ADAS domain controllers, and battery monitoring units requiring stable component supply, long-term automotive lifecycle support, and ASIL D–certified power management.
Supply support for MC33FS8510C4KSR2 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.
The FS85 family is designed as ASIL D–compliant system basis chips for next-generation radar, vision, and domain controller platforms - integrating safety monitoring, multi-rail power conversion, and fail-safe signaling in a single package.
FAQ
What is the primary safety certification level of the MC33FS8510C4KSR2?
The MC33FS8510C4KSR2 is developed in full compliance with ISO 26262 and certified ASIL D - the highest automotive functional safety integrity level. It includes integrated fail-safe state machine, ABIST/LBIST, FCCU monitoring, and configurable deep fail-safe autoretry, all validated per AEC-Q100 Grade 1 reliability standards.
Which MCU families is the MC33FS8510C4KSR2 specifically optimized to support?
The MC33FS8510C4KSR2 is explicitly configured for the NXP S32R234 radar MCU, as indicated by its part number suffix "C4" and application targeting in the datasheet. Its BUCK1 output (1.35 V @ 2.6 A), power sequencing slots, and VCOREMON monitoring are tuned to match the S32R234's core voltage and startup timing requirements.
Does the MC33FS8510C4KSR2 support both SPI and I²C interfaces simultaneously?
No - the MC33FS8510C4KSR2 supports either SPI or I²C, not both concurrently. Its interface is selected at boot via hardware strapping or OTP configuration. The default I²C address is 0x20, and it includes CRC protection on all transactions to ensure command integrity during safety-critical configuration.
How does the MC33FS8510C4KSR2 handle thermal overload conditions?
On thermal shutdown (TSD), the MC33FS8510C4KSR2 disables BUCK1, BUCK2, BUCK3, BOOST, and LDO1/LDO2 individually while asserting FS0B and INTB. Its OTP-configured deep fail-safe mode enables infinite autoretry - restarting all regulators after cooldown - unlike variants with finite retry limits (e.g., x15).
What is the role of the PSYNC pin on the MC33FS8510C4KSR2?
The PSYNC pin on the MC33FS8510C4KSR2 serves as a bidirectional power synchronization signal that coordinates switching edges between two FS85 devices or between an FS85 and an external PMIC. This reduces system-level conducted EMI by eliminating beat frequencies and enabling deterministic interleaving - a key requirement for radar ECU EMC compliance.
MC33FS8510C4KSR2 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)
MC33FS8510C4KSR2 FAQ
1.How can I place an order for MC33FS8510C4KSR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC33FS8510C4KSR2 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 MC33FS8510C4KSR2 reliable?
The price and inventory of MC33FS8510C4KSR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC33FS8510C4KSR2 is usually 5 days.
3.What payment methods are accepted for MC33FS8510C4KSR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC33FS8510C4KSR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC33FS8510C4KSR2?
MC33FS8510C4KSR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC33FS8510C4KSR2 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 MC33FS8510C4KSR2?
For technical support, including MC33FS8510C4KSR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC33FS8510C4KSR2 requirements.
6.How does Aetrix verify that MC33FS8510C4KSR2 is sourced from the original manufacturer or authorized distributors?
All MC33FS8510C4KSR2 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 MC33FS8510C4KSR2 meets industry standards.
7.What is the process for return or replacement of MC33FS8510C4KSR2?
All MC33FS8510C4KSR2 units undergo pre-shipment inspection (PSI). If there is an issue with MC33FS8510C4KSR2, 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 MC33FS8510C4KSR2 part is unused and in its original packaging.
Return procedure for MC33FS8510C4KSR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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