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NXP Semiconductors MC33FS8510A2KSR2
- Part No.:
- MC33FS8510A2KSR2
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Management - Specialized
- Package:
- 56-VFQFN Exposed Pad
- Datasheet:
-
MC33FS8510A2KSR2.pdf
- Description:
- SAFETY POWER MANAGEMENT IC, QFN5
- Quantity:
- Payment:
- Shipping:
Inventory:1,256
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Product details
Overview
MC33FS8510A2KSR2 from NXP Semiconductors is an ASIL D–compliant automotive fail-safe system basis chip (SBC) integrating one VPRE buck controller, three synchronous buck converters (BUCK1/BUCK2/BUCK3), one boost converter, and two LDOs. It delivers 1.025 V @ 2.6 A (BUCK1), 1.8 V @ 4.5 A (BUCK2), 1.8 V @ 2.6 A (BUCK3), 5.0 V @ 1.5 A (BOOST), and dual 400 mA LDOs - all with configurable sequencing, spread-spectrum EMC optimization, and fail-safe output for domain controllers.
For engineers reviewing the MC33FS8510A2KSR2 datasheet, MC33FS8510A2KSR2 pinout, MC33FS8510A2KSR2 application, or MC33FS8510A2KSR2 equivalent, this device supports SPI/I²C configuration, dual wake-up inputs, power synchronization (PSYNC), integrated voltage supervision (VCOREMON, VMON1–VMON4), and functional safety monitoring via FCCU and challenger watchdog - critical for radar and ADAS domain controller power architecture validation.
Technical Context
The MC33FS8510A2KSR2 implements a hierarchical safety architecture with dedicated fail-safe state machine, ABIST/LBIST, and independent monitoring circuits compliant with ISO 26262 ASIL D. Its power management includes multi-phase BUCK1+BUCK2 capability (7.2 A peak), dynamic voltage scaling (DVS), and thermal shutdown with DFS propagation across regulators.
It features external frequency synchronization (FIN/FOUT), programmable slew rate control, and spread-spectrum modulation to meet stringent automotive EMC requirements. The device uses OTP-programmed configurations validated for domain controller applications with NXP S32R/S32K MCUs, supporting precise power-up sequencing across six slots and deep fail-safe autoretry (infinite cycles).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Functional Safety Level | ISO 26262 ASIL D certified; includes FCCU, challenger watchdog, PGOOD/RSTB, and fail-safe output (FS0B) |
| Input Voltage Range | 60 V DC max; supports 12 V and 24 V automotive battery systems with reverse-battery protection diodes on VSUP1/VSUP2 |
| BUCK1 Output | 1.025 V @ 2.6 A peak; dedicated MCU core supply with SVS, soft-start slope 7.81 mV/µs, slot 0 sequencing |
| BUCK2 Output | 1.8 V @ 4.5 A peak; configurable multi-phase operation with BUCK1, slot 0 start/stop |
| BOOST Output | 5.0 V @ 1.5 A peak; integrated low-side switch, 2.22 MHz switching, 125 pF/750 kΩ compensation |
| LDO Outputs | Dual 400 mA LDOs: LDO1 = 5.0 V, LDO2 = 5.0 V; both support voltage supervision and slot-based sequencing |
| Interface & Control | SPI/I²C (0x20 address); 32-bit command structure with CRC; PSYNC pin enables synchronized operation with second FS85 or external PMIC |
Pinout & Package
MC33FS8510A2KSR2 is housed in HVQFN56 (8 mm × 8 mm × 0.85 mm), thermal-enhanced wettable flank package with 56 terminals and 0.5 mm pitch. Exposed pad (EP) serves as common GND for BUCK1/BUCK2/BUCK3 low-side switches.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BUCK1_FB (39) | Voltage feedback input | Connects to BUCK1 output divider; enables regulation of 1.025 V core rail with ±1% accuracy |
| VCOREMON (17) | Core voltage monitor input | Direct connection to BUCK1 output for SVS detection; triggers fail-safe response on OV/UV violation |
| FS0B (14) | Fail-safe output | Active-low open-drain signal asserting system-level fault condition; drives external safety relay or MCU interrupt |
| PSYNC (38) | Power sync I/O | Configurable as input or output to synchronize switching frequencies across multiple FS85 devices for EMI reduction |
| WAKE1 / WAKE2 (49 / 1) | Wake-up inputs | Analog/digital inputs with external series resistor; enable low-power OFF mode wake-up (10 µA quiescent current) |
| INTB (33) | Interrupt output | Active-low signal indicating regulator fault, TSD, or safety event; supports prioritized interrupt handling in MCU firmware |
Key Features
| Feature | Design Value |
|---|---|
| ASIL D Safety Architecture | Dedicated fail-safe state machine, ABIST/LBIST, FCCU monitoring, and independent watchdog - eliminates need for external safety monitor in domain controller designs |
| Multi-Rail Power Sequencing | 6-slot programmable startup/shutdown order across 6 regulators (VPRE, BUCK1–3, BOOST, LDO1/2) ensures deterministic boot for S32R/S32K MCUs |
| EMC-Optimized Switching | Spread spectrum, manual frequency tuning (455 kHz/2.22 MHz), slew rate control, and FIN/FOUT synchronization reduce peak radiated emissions by >10 dBµV/m |
| OTP-Programmed Configuration | Factory-programmed BUCK/LDO voltages, current limits, sequencing slots, and safety thresholds - eliminates runtime configuration overhead and flash dependency |
| Deep Fail-Safe Autoretry | Infinite retry on critical faults (e.g., TSD, OV/UV) with DFS propagation to all regulators - maintains system availability during transient overloads |
Applications
| Radar Domain Controller | ADAS Central Gateway |
|---|---|
|
Use Scenario: Powers NXP S32R234-based corner radar ECU with simultaneous 1.025 V core, 1.8 V DSP, 1.8 V sensor interface, and 5.0 V CAN PHY. IC Role / Device Role / Timing Role: Single-chip power manager providing ASIL D–compliant sequencing, voltage supervision, and fail-safe signaling to radar MCU and transceivers. Use Value: Eliminates discrete supervisor + multi-PMIC solution; reduces BOM count by 7 components and PCB area by 35% vs. legacy design. |
Use Scenario: Supplies NXP S32K3-based central gateway managing CAN FD, Ethernet, and LIN networks in zonal architecture. IC Role / Device Role / Timing Role: Integrates 12 V-to-5.0 V BOOST for PHYs, dual LDOs for IO/ADC, and BUCK1/2 for MCU core/peripherals with synchronized PSYNC timing. Use Value: Enables deterministic 250 µs TSlot timing across all rails; meets ISO 11898-2/1042 timing jitter requirements for CAN FD communication. |
| Imaging Camera ECU | Battery Monitoring System (BMS) |
|
Use Scenario: Powers S32V234 vision processor with 1.025 V core, 1.8 V memory, 3.3 V image sensor, and 5.0 V ISP logic in compact camera module. IC Role / Device Role / Timing Role: Delivers low-noise, fast-transient LDOs and phase-shifted BUCKs to suppress switching noise coupling into analog imaging path. Use Value: Achieves <−75 dB PSRR at 100 kHz on LDO2; enables 12-bit ADC accuracy without external filtering. |
Use Scenario: Supplies NXP S32K144-based BMS with 1.025 V MCU core, 5.0 V analog front-end, and 3.3 V CAN transceiver under 12 V/24 V battery input. IC Role / Device Role / Timing Role: Provides battery voltage sensing (VSUP1/VSUP2), wake-on-voltage threshold (4.9 V), and fail-safe shutdown on undervoltage events. Use Value: Supports AEC-Q100 Grade 1 operation down to −40 °C; enables cold-cranking operation with 60 V surge tolerance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive SBC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC33FS8510A3ES | Same ASIL D architecture but configured for BMS with Aurix MCU; BUCK1 = 0.825 V, LDO1 = 5.0 V, LDO2 = 5.0 V, no BUCK2 | Targeted for Infineon Aurix TC3xx-based BMS; lacks BUCK2 required for dual-core domain controllers | Select MC33FS8510A3ES only when Aurix MCU integration and absence of BUCK2 are acceptable |
| MC33FS8520A0KS | Includes BUCK1 + BUCK2 (no BUCK3); BUCK1 = 1.1 V, BUCK2 = 1.8 V; same 2.22 MHz switching and OTP sequencing | Optimized for ADAS gateway with dual-core MCU requiring two high-current rails but no third low-noise rail | Choose MC33FS8520A0KS when BUCK3 is unnecessary and cost-sensitive BOM optimization is prioritized |
Compared with MC33FS8510A2KSR2, MC33FS8510A3ES removes BUCK2 and adjusts core voltage for Aurix compatibility, while MC33FS8520A0KS retains BUCK1/BUCK2 but omits BUCK3 - making both unsuitable as drop-in replacements where triple-buck capability and 1.025 V core are mandatory for S32R/S32K domain controllers.
Availability
MC33FS8510A2KSR2 is available at Aetrix Electronics and suitable for radar domain controllers, ADAS gateways, imaging camera ECUs, and battery monitoring systems requiring stable component supply, AEC-Q100 Grade 1 qualification, and ISO 26262 ASIL D compliance.
Supply support for MC33FS8510A2KSR2 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 markets, with deep expertise in functional safety and automotive power management.
The FS85 family - including MC33FS8510A2KSR2 - was engineered specifically for ASIL D–compliant domain controllers and radar systems, integrating fail-safe supervision, multi-rail sequencing, and EMC-hardened switching to replace discrete PMIC + safety monitor architectures.
FAQ
What is the primary safety certification status of the MC33FS8510A2KSR2?
The MC33FS8510A2KSR2 is developed and qualified to ISO 26262 ASIL D requirements, with integrated fail-safe state machine, ABIST/LBIST, FCCU monitoring, and challenger watchdog. It is also AEC-Q100 Grade 1 qualified (−40 °C to +125 °C) and compliant with MSL3 moisture sensitivity level. All safety mechanisms are verified per NXP's internal FMEDA and confirmed in the FS84_FS85C product data sheet Rev. 12.0.
Does the MC33FS8510A2KSR2 support multi-phase operation between BUCK1 and BUCK2?
Yes, the MC33FS8510A2KSR2 supports multi-phase operation between BUCK1 and BUCK2 to extend peak current capability to 7.2 A on a single rail. This is enabled via OTP configuration and requires matching inductor values (1 µH) and phase-shifted PWM signals - confirmed in Table 4.1 "Main OTP flavors" where BUCK2 is enabled and phase shifting is set to delay 0 for both regulators.
What are the exact output voltages and current capabilities of each regulator in the MC33FS8510A2KSR2?
The MC33FS8510A2KSR2 delivers: BUCK1 = 1.025 V @ 2.6 A peak; BUCK2 = 1.8 V @ 4.5 A peak; BUCK3 = 1.8 V @ 2.6 A peak; BOOST = 5.0 V @ 1.5 A peak; LDO1 = 5.0 V @ 400 mA; LDO2 = 5.0 V @ 400 mA. These values are fixed per OTP programming and documented in Section 4.1 "Main OTP flavors" of the FS84_FS85C datasheet.
How does the MC33FS8510A2KSR2 handle thermal shutdown events?
On thermal shutdown (TSD), the MC33FS8510A2KSR2 initiates DFS (Deep Fail-Safe) propagation: BUCK1 shuts down with DFS, while BUCK2 and BUCK3 enter standalone shutdown (no DFS). The fail-safe state machine asserts FS0B and disables all regulators except those in active safety-critical slots - behavior confirmed in Table 4.1 for MC33FS8510A2.
Is the MC33FS8510A2KSR2 pin-compatible with other FS85 variants such as MC33FS8530A1?
Yes, all FS85 devices - including MC33FS8510A2KSR2 and MC33FS8530A1 - are pin-to-pin and software compatible per Section 1 "General description". Differences lie solely in OTP configuration (e.g., enabled regulators, voltages, sequencing), not pin function or physical layout. The HVQFN56 footprint and pin mapping remain identical across the FS85 family.
MC33FS8510A2KSR2 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)
MC33FS8510A2KSR2 FAQ
1.How can I place an order for MC33FS8510A2KSR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC33FS8510A2KSR2 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 MC33FS8510A2KSR2 reliable?
The price and inventory of MC33FS8510A2KSR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC33FS8510A2KSR2 is usually 5 days.
3.What payment methods are accepted for MC33FS8510A2KSR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC33FS8510A2KSR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC33FS8510A2KSR2?
MC33FS8510A2KSR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC33FS8510A2KSR2 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 MC33FS8510A2KSR2?
For technical support, including MC33FS8510A2KSR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC33FS8510A2KSR2 requirements.
6.How does Aetrix verify that MC33FS8510A2KSR2 is sourced from the original manufacturer or authorized distributors?
All MC33FS8510A2KSR2 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 MC33FS8510A2KSR2 meets industry standards.
7.What is the process for return or replacement of MC33FS8510A2KSR2?
All MC33FS8510A2KSR2 units undergo pre-shipment inspection (PSI). If there is an issue with MC33FS8510A2KSR2, 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 MC33FS8510A2KSR2 part is unused and in its original packaging.
Return procedure for MC33FS8510A2KSR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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