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NXP Semiconductors MFS8412AMBP7ES
- Part No.:
- MFS8412AMBP7ES
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Management - Specialized
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
MFS8412AMBP7ES.pdf
- Description:
- SAFETY POWER MANAGEMENT IC, QFN4
- Quantity:
- Payment:
- Shipping:
Inventory:4,638
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Product details
Overview
MFS8412AMBP7ES from NXP Semiconductors is a functionally safe, ASIL B-compliant system basis chip (SBC) designed for radar applications with the NXP S32R274 MCU. It integrates a 3.3 V VPRE synchronous buck controller (10 A peak), 1.25 V BUCK1 core supply (4.5 A), 2.3 V BUCK3 (4.5 A), 5.74 V BOOST converter, and dual LDOs (3.3 V/150 mA and 5.0 V/150 mA), all with fail-safe outputs and SPI-based configuration.
For engineers reviewing the MFS8412AMBP7ES datasheet, MFS8412AMBP7ES pinout, MFS8412AMBP7ES application, or MFS8412AMBP7ES equivalent, this device delivers deterministic power sequencing, real-time voltage supervision (VCOREMON, VMON1–4), deep fail-safe auto-retry (x15), and EMC-optimized 2.22 MHz SMPS operation - critical for automotive radar ECU reliability and ISO 26262 compliance.
Technical Context
The MFS8412AMBP7ES implements two independent state machines: a main power management engine handling regulator startup/shutdown sequencing across 8 configurable slots, and a dedicated fail-safe state machine executing ABIST1/ABIST2, watchdog windowing, and fault escalation to FS0B/RSTB/PGOOD outputs. Its safety architecture supports full ASIL B partitioning per ISO 26262 Part 5.
It features hardware-level monitoring of five voltage rails (VCOREMON, VDDIOMON, VMON1–4) with programmable OV/UV thresholds (e.g., VCOREMON UVTH = 88%, OVTH = 112%), 25 µs glitch filtering, and TSD-triggered shutdown per regulator. The 32-bit SPI interface includes CRC and enables runtime reconfiguration of sequencing, DVS slew rates, and fail-safe behavior without OTP reprogramming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | VSUP: 4.9 V to 40 V - supports cold-crank and load-dump conditions in 12 V automotive systems |
| VPRE Output | 3.3 V @ 10 A peak - supplies external radar transceiver or high-speed interface with force-PWM mode |
| BUCK1 Output | 1.25 V @ 4.5 A peak - dedicated core supply for S32R274 MCU with SVS capability and slot-1 sequencing |
| BUCK3 Output | 2.3 V @ 4.5 A peak - powers radar signal chain components; enabled and sequenced in slot 0 |
| LDO1/LDO2 Outputs | 3.3 V/150 mA and 5.0 V/150 mA - supply MCU I/Os and analog peripherals with independent TSD shutdown |
| Safety Certification | ASIL B compliant per ISO 26262:2018; AEC-Q100 Grade 1 qualified (−40 °C to +125 °C ambient) |
| Fail-Safe Response | Deep fail-safe auto-retry (x15), FS0B open-drain output, PGOOD/RSTB active-low with mandatory VDDIO pull-up |
Pinout & Package
HVQFN48, plastic thermally enhanced thin quad flat package, no lead, wettable flanks (SOT619-27); 7 mm × 7 mm × 0.85 mm body, 0.4 mm pitch, exposed thermal pad (EP) connected to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BUCK1_FB (33) | Voltage feedback input | Connects to BUCK1 output via resistor divider; enables precise 1.25 V regulation with SVS monitoring |
| VCOREMON (15) | Core voltage monitor input | Direct connection to BUCK1 output required for SVS detection and fail-safe triggering |
| FS0B (12) | Fail-safe output | Active-low open-drain signal asserting system-level failure; requires external pull-up for logic-level compatibility |
| PSYNC (32) | Power synchronization I/O | Enables synchronized switching of multiple MFS8412AMBP7ES devices or external PMICs to reduce system EMI |
| WAKE1/WAKE2 (43/1) | Wake-up inputs | Dual configurable wake sources with internal pulldown; support low-power radar standby exit on CAN/LIN or sensor event |
| INTB (29) | Interrupt output | Push-pull active-low interrupt signaling regulator faults, monitoring violations, or SPI command completion |
Key Features
| Feature | Design Value |
|---|---|
| Configurable Power Sequencing | 8-slot sequencing engine with per-regulator start/stop assignment (e.g., BUCK1 in Slot 1, LDO1 in Slot 2) enabling deterministic radar boot timing |
| Real-Time Voltage Supervision | Five independent monitors (VCOREMON, VDDIOMON, VMON1–4) with 25 µs OV/UV glitch rejection and programmable thresholds for ASIL B fault detection |
| EMC-Optimized Switching | 2.22 MHz fixed-frequency operation with phase-shifting (delay 0), spread spectrum disabled, and slew rate control to meet CISPR 25 Class 5 radiated emissions |
| Fail-Safe State Machine | Dedicated hardware FSM executing ABIST1/ABIST2, watchdog windowing, and automatic FS0B assertion on FCCU1/FCCU2 error or TSD - no software dependency |
| OTP-Programmable Safety Logic | FCCU enabled, FLT_RECOVERY enabled, and deep fail-safe (x15 retry) preconfigured in factory OTP - eliminates field programming risk in production |
Applications
| Radar Sensor Module | ADAS Domain Controller |
|---|---|
Use Scenario: Powering 77 GHz corner radar modules with S32R274 MCU, RF transceivers, and ADCs under harsh automotive temperature and EMI conditions. IC Role / Device Role / Timing Role: System basis chip providing regulated VPRE (3.3 V), VCORE (1.25 V), VIO (3.3 V), and VBOOST (5.74 V) with synchronized startup and fail-safe shutdown. Use Value: Enables single-chip power management for radar ECU with deterministic sequencing, ASIL B compliance, and <25 µs fault response time - eliminating discrete supervisor ICs. |
Use Scenario: Consolidating power delivery and safety monitoring for multi-sensor ADAS domain controllers integrating radar, camera, and V2X interfaces. IC Role / Device Role / Timing Role: Centralized SBC managing BUCK1 (MCU core), BUCK3 (peripheral I/O), LDOs (ADC reference), and BOOST (PHY supply) with coordinated sequencing and voltage supervision. Use Value: Reduces BOM count by 4+ discrete regulators and supervisors while meeting ISO 26262 ASIL B requirements for functional safety without software intervention. |
| Vision Processing Unit | Automotive Gateway |
Use Scenario: Supplying stereo camera modules with high-current core (1.2 V) and I/O (1.8 V/3.3 V) rails plus analog bias (5.0 V) in compact infotainment-adjacent vision ECUs. IC Role / Device Role / Timing Role: Multi-rail SBC delivering BUCK1 (1.25 V), BUCK3 (2.3 V), LDO1 (3.3 V), LDO2 (5.0 V), and BOOST (5.74 V) with independent TSD and sequencing slots. Use Value: Supports rapid camera boot (<50 ms) via slot-ordered power-up and eliminates need for external reset generators or voltage supervisors. |
Use Scenario: Powering NXP MPC5748G-based gateways requiring robust 12 V input handling, CAN PHY supply, and fail-safe reset coordination across multiple sub-systems. IC Role / Device Role / Timing Role: ASIL B-compliant SBC generating VPRE (3.3 V), BUCK1 (1.25 V), and LDOs while monitoring VSUP, VCORE, and VDDIO for gateway-level safety integrity. Use Value: Provides certified safety island for gateway MCU with integrated PGOOD, RSTB, and FS0B outputs - reducing external safety circuitry by 60%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar system basis chip applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MFS8416AMBP3ES | Same HVQFN48 package; VPRE = 3.3 V, BUCK1 = 1.25 V, BUCK3 enabled, LDO1 = 3.3 V, LDO2 = 5.0 V, no FCCU or FLT_RECOVERY | Targeted for generic radar (no S32R274-specific sequencing); lacks deep fail-safe recovery and MCU error monitoring | Select when FCCU and auto-retry are not required; lower safety certification scope |
| MFS8412AMBP8ES | Identical OTP configuration except BUCK1 = 0.825 V, VMON1 UVTH = 95.5 %, FLT_RECOVERY enabled, and PSYNC disabled | Optimized for S32R294 MCU (lower core voltage); same radar use case but different voltage tolerance and recovery behavior | Choose only for S32R294-based designs; not interchangeable due to BUCK1 voltage and safety feature differences |
Compared with MFS8412AMBP7ES, MFS8416AMBP3ES omits critical safety features (FCCU, FLT_RECOVERY) needed for S32R274 radar systems, while MFS8412AMBP8ES changes core voltage and fault recovery - making MFS8412AMBP7ES the sole fit for S32R274 with full ASIL B fail-safe execution.
Availability
MFS8412AMBP7ES is available at Aetrix Electronics and suitable for radar sensor modules, ADAS domain controllers, and automotive vision processing units requiring stable component supply, long-term automotive qualification, and ISO 26262-compliant power management.
Supply support for MFS8412AMBP7ES 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 radar processing and functional safety IP.
The FS84 QFN48EP family was designed specifically for automotive radar and ADAS domain controllers, integrating ASIL B-compliant power management, fail-safe monitoring, and MCU-agnostic sequencing to accelerate development of certified safety-critical ECUs.
FAQ
What is the primary application target for the MFS8412AMBP7ES?
The MFS8412AMBP7ES is specifically configured for radar systems using the NXP S32R274 MCU. Its OTP settings - including 1.25 V BUCK1 output, slot-1 power sequencing, VCOREMON monitoring at 1.25 V, and enabled FCCU - are optimized for this processor's voltage, timing, and safety requirements. It is not intended for general-purpose use outside this validated radar platform.
Does the MFS8412AMBP7ES support pin-to-pin compatibility with other FS84 QFN48EP variants?
Yes, all FS84 QFN48EP devices, including MFS8412AMBP7ES, are pin-to-pin and software compatible per the datasheet. However, OTP-configured parameters - such as BUCK1 voltage (1.25 V), VMON thresholds, and FLT_RECOVERY enablement - are fixed at factory and cannot be altered post-solder. PCB layout may be reused, but firmware must match the specific OTP feature set of MFS8412AMBP7ES.
How does the fail-safe state machine in the MFS8412AMBP7ES respond to a BUCK1 thermal shutdown?
Upon BUCK1 thermal shutdown, the MFS8412AMBP7ES fail-safe state machine asserts RSTB and FS0B within 250 µs, disables all regulators except VBOS, and enters DEEP-FS mode with x15 auto-retry. This behavior is hard-coded in OTP and does not require MCU intervention. The device remains in fail-safe until VSUP recovers and the safety FSM completes ABIST2 validation.
What are the mandatory connections for reliable operation of the MFS8412AMBP7ES?
Mandatory connections for MFS8412AMBP7ES include: VSUP (with reverse-battery diode), GND9/GND/GND34/EP (all grounded), VCOREMON (directly to BUCK1 output), PGOOD and RSTB (with VDDIO pull-up resistors), BUCK1_IN and BUCK1_FB (for core regulation), and WAKE1 (external pulldown). Omitting any of these violates the safety architecture and prevents ASIL B compliance.
Can the MFS8412AMBP7ES be used with MCUs other than the S32R274?
The MFS8412AMBP7ES can power other MCUs, but its OTP configuration - especially BUCK1 = 1.25 V, VCOREMON threshold = 1.25 V, and slot-1 sequencing - is calibrated for S32R274. Using it with non-S32R274 MCUs risks undervoltage lockout or incorrect fail-safe triggering unless voltage monitors and sequencing slots are verified against the target MCU's datasheet specifications.
MFS8412AMBP7ES Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 48-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:
- 48-HVQFN (7x7)
MFS8412AMBP7ES FAQ
1.How can I place an order for MFS8412AMBP7ES through Aetrix?
Please submit a Request for Quotation (RFQ) for MFS8412AMBP7ES 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 MFS8412AMBP7ES reliable?
The price and inventory of MFS8412AMBP7ES are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MFS8412AMBP7ES is usually 5 days.
3.What payment methods are accepted for MFS8412AMBP7ES?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MFS8412AMBP7ES transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MFS8412AMBP7ES?
MFS8412AMBP7ES orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MFS8412AMBP7ES 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 MFS8412AMBP7ES?
For technical support, including MFS8412AMBP7ES datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MFS8412AMBP7ES requirements.
6.How does Aetrix verify that MFS8412AMBP7ES is sourced from the original manufacturer or authorized distributors?
All MFS8412AMBP7ES 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 MFS8412AMBP7ES meets industry standards.
7.What is the process for return or replacement of MFS8412AMBP7ES?
All MFS8412AMBP7ES units undergo pre-shipment inspection (PSI). If there is an issue with MFS8412AMBP7ES, 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 MFS8412AMBP7ES part is unused and in its original packaging.
Return procedure for MFS8412AMBP7ES:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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