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NXP Semiconductors MC33FS8510D3KS
- Part No.:
- MC33FS8510D3KS
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Management - Specialized
- Package:
- 56-VFQFN Exposed Pad
- Datasheet:
-
MC33FS8510D3KS.pdf
- Description:
- SAFETY POWER MANAGEMENT IC, QFN5
- Quantity:
- Payment:
- Shipping:
Inventory:3,475
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Product details
Overview
MC33FS8510D3KS from NXP Semiconductors is an ASIL D–compliant automotive fail-safe system basis chip (SBC) with integrated VPRE synchronous buck controller, three low-voltage synchronous buck converters (BUCK1/BUCK2/BUCK3), one BOOST converter, and two LDOs. It delivers 1.3 V @ 2.6 A (BUCK1), 3.3 V @ 2.6 A (BUCK3), 5.0 V @ 150 mA (LDO1), and 5.0 V @ 150 mA (LDO2), supporting battery monitoring systems per AEC-Q100 Grade 1.
For engineers reviewing the MC33FS8510D3KS datasheet, MC33FS8510D3KS pinout, MC33FS8510D3KS application, or MC33FS8510D3KS equivalent, this device requires attention to its OTP-configured power sequencing (BUCK1/BUCK3/LDO1/LDO2 in Slots 1/1/2/2), fail-safe output (FS0B), dual wake-up inputs (WAKE1/WAKE2), and SPI/I²C interface with CRC for functional safety monitoring in 24 V battery monitoring systems.
Technical Context
The MC33FS8510D3KS implements a deterministic fail-safe state machine with deep fail-safe autoretry (infinite cycles), challenger watchdog, and dedicated FCCU monitoring inputs (FCCU1/FCCU2) for MCU-level fault detection. Its safety architecture includes ABIST1 coverage for VCOREMON/VDDIOMON/VMON1/VMON2 and configurable voltage supervision thresholds (OVTH/UVTH) with programmable deglitch times (e.g., UV_DGLT = 40 µs on VCOREMON).
Power management integrates frequency synchronization (FIN/FOUT), PSYNC for multi-device coordination, and EMC-optimized features including spread spectrum, slew rate control, and manual frequency tuning. The device supports external MOSFETs via VPRE high-/low-side gate drivers (PRE_GHS/PRE_GLS) and uses an exposed thermal pad (HVQFN56) for thermal dissipation in automotive under-hood environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ASIL Level | ASIL D compliant per ISO 26262, qualified to AEC-Q100 Grade 1 (−40 °C to +125 °C) |
| Input Voltage Range | 60 V DC max input supports 12 V and 24 V automotive battery rails with reverse-battery protection diodes on VSUP1/VSUP2 |
| BUCK1 Output | 1.3 V @ 2.6 A peak, configured for MCU core supply with SVS capability and soft-start slope of 7.81 mV/µs |
| BUCK3 Output | 3.3 V @ 2.6 A peak, assigned to VDDIO rail with power sequencing slot 1 and TSD shutdown + DFS response |
| LDO1/LDO2 Outputs | 5.0 V @ 150 mA each, used for ADC/analog monitoring and physical layer interfaces with independent UV/OV supervision |
| Fail-Safe Output | FS0B active-low open-drain output with infinite autoretry mode, directly drives external safety-critical actuators or logic |
| Interface | SPI or I²C (address 0x20) with CRC error checking; supports configuration, monitoring, and diagnostics in real time |
Pinout & Package
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 thermal 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 for global wake-up in battery monitoring sleep modes |
| FS0B | Fail-safe output | Active-low open-drain driver enabling direct connection to external safety relays or MCU reset chains |
| VCOREMON / VMON1–VMON4 | Voltage monitoring inputs | Four independent analog inputs for supervising BUCK1 output and external rails; VCOREMON tied to BUCK1-FB per spec |
| PSYNC | Power sync I/O | Configurable as input or output to synchronize switching frequencies across multiple FS85 devices or with external PMICs |
| PRE_GHS / PRE_GLS | VPRE gate drivers | High-side and low-side MOSFET drivers for external VPRE buck stage, supporting up to 10 A peak current |
| LDO1 / LDO2 | Linear regulator outputs | Stable 5.0 V outputs for noise-sensitive analog circuits; each rated for 150 mA with thermal shutdown and DFS response |
Key Features
| Feature | Design Value |
|---|---|
| OTP-configurable power sequencing | BUCK1, BUCK3, LDO1, and LDO2 start/stop in fixed slots (1/1/2/2), enabling deterministic boot timing for battery monitoring firmware |
| Dual independent voltage supervisors | VCOREMON and VDDIOMON with programmable OV/UV thresholds (±12 %/±10 %) and deglitch filtering (45 µs OV_DGLT, 40 µs UV_DGLT) |
| Fail-safe state machine with infinite autoretry | FS0B asserts continuously until fault clearance; no external watchdog timer required for basic fail-safe actuation |
| EMC-optimized switching | Spread spectrum, slew rate control, and 455 kHz/2.22 MHz selectable switching frequencies reduce radiated emissions in dense PCB layouts |
| Functional safety monitoring interface | FCCU1/FCCU2 inputs accept MCU-generated challenge signals; ERRMON monitors external IC faults for layered safety partitioning |
Applications
| Battery Monitoring System | Radar Domain Controller |
|---|---|
Use Scenario: Continuous monitoring of 24 V battery voltage, temperature, and cell balancing status in EV battery packs during vehicle sleep and wake cycles. IC Role / Device Role / Timing Role: MC33FS8510D3KS serves as primary power manager and safety monitor, supplying regulated rails to microcontroller, ADC, and CAN transceiver while asserting FS0B on critical overvoltage events. Use Value: Enables ASIL D–compliant shutdown within 40 µs UV_DGLT window on VCOREMON, meeting ISO 26262 diagnostic coverage requirements for battery safety. | Use Scenario: Powering NXP S32R234 radar MCU and associated RF front-end in corner radar modules requiring tight EMI control and fast transient response. IC Role / Device Role / Timing Role: MC33FS8510D3KS delivers 1.3 V @ 2.6 A to S32R234 core and 3.3 V @ 2.6 A to IO domain, with FIN/FOUT synchronization to align switching noise away from 77 GHz radar bands. Use Value: Spread spectrum and manual frequency tuning reduce peak emissions by >10 dBµV/m, easing CISPR 25 Class 5 compliance without added shielding. |
| ADAS Domain Controller | Automotive Gateway |
Use Scenario: Consolidating power delivery and safety monitoring for multi-ECU domain controllers integrating camera, radar, and ultrasonic sensor fusion logic. IC Role / Device Role / Timing Role: MC33FS8510D3KS provides isolated, sequenced rails to heterogeneous processors (e.g., S32G) and interfaces (CAN FD, Ethernet), with PSYNC coordinating timing across dual FS85 devices. Use Value: Pin-to-pin compatibility with FS8520/FS8530 allows scalable design reuse; multi-phase BUCK1+BUCK2 extension supports up to 7.2 A peak on single rail if needed. | Use Scenario: Managing power and safety for gateway ECUs bridging body, chassis, and infotainment domains with mixed-voltage peripherals and OTA update capability. IC Role / Device Role / Timing Role: MC33FS8510D3KS supplies 5.0 V @ 150 mA to CAN PHY and LIN transceivers while using AMUX to feed battery voltage telemetry to MCU ADC via single analog channel. Use Value: Integrated ABIST1 self-test and challenger watchdog eliminate need for external safety monitor IC, reducing BOM count and layout area by 30 %. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fail-safe SBC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC33FS8510A2KS | Same ASIL D rating and HVQFN56 package; differs in OTP: BUCK1 = 1.025 V @ 2.6 A, LDO1 = 5.0 V @ 400 mA, no LDO2 enable, and simple watchdog instead of challenger WD | Targeted at radar with S32R274 MCU (not battery monitoring); lacks dual LDO support and infinite autoretry | Select MC33FS8510A2KS only when higher LDO1 current (400 mA) is required and FS0B autoretry is not safety-critical |
| MC33FS8520A0KS | Includes BUCK2 (1.8 V @ 4.5 A) and same BUCK1/BUCK3/LDO specs as MC33FS8510D3KS but adds multiphase capability between BUCK1/BUCK2; uses simple watchdog | Designed for ADAS domain controllers needing dual-core MCU supply; lacks VMON4 and deep fail-safe infinite retry | Choose MC33FS8520A0KS when 7.2 A peak current on one rail is required and battery monitoring does not mandate infinite FS0B autoretry |
Compared with MC33FS8510A2KS and MC33FS8520A0KS, the MC33FS8510D3KS uniquely combines dual 5.0 V LDOs with 150 mA rating, infinite FS0B autoretry, and challenger watchdog-making it the only option qualified for ASIL D battery monitoring where sustained fail-safe assertion and redundant voltage supervision are mandatory.
Availability
MC33FS8510D3KS is available at Aetrix Electronics and suitable for battery monitoring systems, radar domain controllers, and ADAS domain controllers requiring stable component supply with full AEC-Q100 Grade 1 qualification and ISO 26262 ASIL D compliance.
Supply support for MC33FS8510D3KS 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 functional safety and radar processing.
The FS85 family-including MC33FS8510D3KS-is designed specifically for ASIL D automotive power management in battery monitoring, radar, and domain controller systems, emphasizing fail-safe behavior, EMC robustness, and seamless integration with NXP's S32 processor portfolio.
FAQ
What is the ASIL rating and qualification status of the MC33FS8510D3KS?
The MC33FS8510D3KS is ASIL D–compliant per ISO 26262 and qualified to AEC-Q100 Grade 1 (−40 °C to +125 °C). It includes built-in self-test (ABIST1), challenger watchdog, and dedicated FCCU monitoring inputs-features validated in NXP's FS84_FS85C product data sheet Rev. 12.0. This makes MC33FS8510D3KS suitable for safety-critical battery monitoring applications where continuous fault detection is mandatory.
How does the MC33FS8510D3KS support battery monitoring system requirements?
The MC33FS8510D3KS supports battery monitoring systems through dual wake-up inputs (WAKE1/WAKE2), four voltage monitoring channels (VCOREMON, VMON1–VMON4), and fail-safe output FS0B with infinite autoretry. Its OTP configuration assigns BUCK1 (1.3 V), BUCK3 (3.3 V), LDO1 (5.0 V), and LDO2 (5.0 V) to precise power sequencing slots-ensuring deterministic startup for battery telemetry firmware. The 40 µs UV_DGLT on VCOREMON enables rapid response to undervoltage faults per ISO 26262.
What are the key differences between MC33FS8510D3KS and MC33FS8510A2KS?
MC33FS8510D3KS and MC33FS8510A2KS share ASIL D compliance and HVQFN56 packaging but differ in OTP configuration: MC33FS8510D3KS provides dual 5.0 V LDOs (150 mA each), infinite FS0B autoretry, and challenger watchdog, while MC33FS8510A2KS offers single 5.0 V LDO (400 mA), simple watchdog, and no LDO2. MC33FS8510D3KS is specified for battery monitoring; MC33FS8510A2KS targets radar with S32R274.
Does the MC33FS8510D3KS support frequency synchronization with other power ICs?
Yes, the MC33FS8510D3KS supports frequency synchronization via dedicated pins: FIN (input), FOUT (output), and PSYNC (bidirectional). These allow alignment of switching frequencies across multiple MC33FS8510D3KS devices or with external PMICs to minimize beat frequencies and reduce system-level EMI-critical in battery monitoring systems where clean 24 V rail integrity must be preserved.
What is the role of the PSYNC pin on the MC33FS8510D3KS?
The PSYNC pin on the MC33FS8510D3KS operates as a bidirectional power synchronization interface. When configured as input, it locks MC33FS8510D3KS switching frequency to an external clock; when configured as output, it drives synchronization to another FS85 device or compatible PMIC. This feature enables deterministic phase alignment across multiple regulators-essential for reducing ripple summation and meeting CISPR 25 emission limits in battery monitoring ECU designs.
MC33FS8510D3KS 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)
MC33FS8510D3KS FAQ
1.How can I place an order for MC33FS8510D3KS through Aetrix?
Please submit a Request for Quotation (RFQ) for MC33FS8510D3KS 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 MC33FS8510D3KS reliable?
The price and inventory of MC33FS8510D3KS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC33FS8510D3KS is usually 5 days.
3.What payment methods are accepted for MC33FS8510D3KS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC33FS8510D3KS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC33FS8510D3KS?
MC33FS8510D3KS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC33FS8510D3KS 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 MC33FS8510D3KS?
For technical support, including MC33FS8510D3KS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC33FS8510D3KS requirements.
6.How does Aetrix verify that MC33FS8510D3KS is sourced from the original manufacturer or authorized distributors?
All MC33FS8510D3KS 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 MC33FS8510D3KS meets industry standards.
7.What is the process for return or replacement of MC33FS8510D3KS?
All MC33FS8510D3KS units undergo pre-shipment inspection (PSI). If there is an issue with MC33FS8510D3KS, 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 MC33FS8510D3KS part is unused and in its original packaging.
Return procedure for MC33FS8510D3KS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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