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NXP Semiconductors MFS8633BMDA0ESR2
- Part No.:
- MFS8633BMDA0ESR2
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Management - Specialized
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
MFS8633BMDA0ESR2.pdf
- Description:
- SAFETY SYSTEM BASIS CHIP FOR DOM
- Quantity:
- Payment:
- Shipping:
Inventory:2,371
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Product details
Overview
MFS8633BMDA0ESR2 from NXP Semiconductors is a fail-safe system basis chip (SBC) designed for ASIL B automotive domain controllers, integrating a 15 A high-voltage buck controller (VPRE), 1 A boost converter (BOOST), 2.5 A synchronous buck (BUCK), two 400 mA LDOs, and ten ±1 % accurate voltage monitors. It supports 12 V battery networks (36 V max), features I²C-based device control, and delivers safety-critical power sequencing and fault detection for radar and ADAS ECUs.
For engineers reviewing the MFS8633BMDA0ESR2 datasheet, MFS8633BMDA0ESR2 pinout, MFS8633BMDA0ESR2 application, or MFS8633BMDA0ESR2 equivalent, this page provides verified functional specifications, validated pin roles, confirmed safety architecture details, and real-world domain controller use context - all aligned to ISO 26262 ASIL B compliance and AEC-Q100 qualification.
Technical Context
The MFS8633BMDA0ESR2 implements a multi-rail power management architecture with independent regulation paths: VPRE uses external FETs for up to 15 A output at 3.3–5.0 V; BOOST supplies 5–6 V at 1 A; BUCK delivers 1.0–3.3 V at 2.5 A; and dual LDOs support MCU I/O at 1.1–5.0 V. All regulators include e-fuse protection, spread-spectrum EMI control, and slew-rate tuning.
Safety functionality includes dedicated analog voltage monitoring inputs (VMON0–VMON9), logical/ABIST self-test, challenger watchdog support via FCCU1/FCCU2, ERRMON for external IC failure detection, and synchronized fail-safe outputs (PGOOD, RSTB, FS0B) with latent fault detection. Power-up sequencing is managed through XFAILB leader/follower coordination and optional 10 ms RSTB delay.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5 V to 36 V DC - supports full operation across 12 V automotive battery network including cold-crank and load-dump transients. |
| VPRE Output Capability | Configurable 3.3–5.0 V, up to 15 A DC - enables high-power pre-regulation for downstream PMICs or MCUs in domain controllers. |
| BOOST Output | 5–6 V at 1 A DC - powers CAN transceivers or other 5 V peripherals without external boost IC. |
| BUCK Output | 1.0–3.3 V at 2.5 A DC - supplies core voltage to automotive-grade MCUs such as S32K or RH850. |
| LDO1/LDO2 Current | Each rated 400 mA DC - independently powers I/O banks, sensors, or communication interfaces with load-switch capability on LDO1. |
| Voltage Monitoring Accuracy | ±1 % over temperature - enables reliable QM rail supervision of non-NXP components in mixed-PMIC systems. |
| Safety Certification | ISO 26262 ASIL B compliant, AEC-Q100 Grade 1 qualified - validated for use in safety-critical ADAS and electrification ECUs. |
| Interface | 32-bit I²C with 8-bit CRC - ensures robust configuration, status reporting, and watchdog handshake with host MCU. |
Pinout & Package
Package: HPQFN48eP (48-pin thermally enhanced wettable flank QFN with exposed pad). Optimized for automotive thermal cycling and reflow soldering reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSUP1 / VSUP2 | Main power supply inputs | Accept 36 V max input; require external reverse-battery diodes for automotive protection. |
| VPRE-related pins (PRE_SW, PRE_GHS, PRE_GLS, PRE_FB, PRE_CSP/CN) | High-voltage buck controller interface | Drive external N-channel MOSFETs; enable current sensing, feedback, and gate drive for 15 A VPRE rail. |
| BUCK_SW / BUCK_IN / BUCK_FB | Integrated low-voltage buck regulator interface | Support internal 2.5 A switching stage; FB pin enables precise output voltage setting and stability control. |
| LDO1 / LDO2 | Linear regulator outputs | Deliver regulated 1.1–5.0 V outputs; LDO1 includes BAT_SW-controlled load switch for power gating. |
| VMON0–VMON9 | Voltage monitoring inputs | 10 dedicated analog inputs supporting ±1 % accuracy; VMON0_I2C serves dual role for FIN/AMUX/I²C supply monitoring. |
| PGOOD / RSTB / FS0B | Fail-safe outputs | Open-drain active-low signals indicating power health, MCU reset state, and system safe-state assertion respectively. |
| FCCU1 / FCCU2 / ERRMON | MCU and external IC failure monitoring inputs | Enable hardware-level fault detection: PWM-based MCU health check (FCCU) and error flag input from companion ICs (ERRMON). |
| XFAILB | Power synchronization I/O | Coordinates power-up sequencing and fail-safe state transitions across cascaded NXP SBCs in BYLink platform. |
Key Features
| Feature | Design Value |
|---|---|
| BYLink synchronization | Enables cascaded SBCs to behave as single power domain with coordinated sequencing and safety state propagation. |
| e-Fuse protection on VPRE | Shuts down 15 A high-side path within microseconds during overcurrent or short-circuit events to prevent system damage. |
| 10-channel ±1 % voltage monitor | Supervises both internal rails and external PMIC outputs, extending safety coverage beyond the local chip. |
| Challenger watchdog support | Provides ASIL D-compliant dual-counter watchdog interface (FCCU1/FCCU2) for robust MCU failure detection. |
| EMI optimization suite | Includes spread spectrum, slew rate control, and manual frequency tuning to meet FMC1278 and IEC 62132-4 standards. |
| OTP-configurable functionality | Allows factory programming of feature sets (e.g., FIN/VMON9 exclusivity, watchdog mode) without hardware change. |
Applications
| Radar ECU Power Management | ADAS Domain Controller |
|---|---|
|
Use Scenario: Powers 77 GHz radar SoC, CAN FD transceiver, and sensor interface circuitry in front-corner radar modules. IC Role / Device Role / Timing Role: Central SBC providing sequenced, monitored, and fail-safe power to multiple voltage domains under ISO 26262 ASIL B requirements. Use Value: Eliminates need for discrete supervisors and sequencers while enabling real-time voltage monitoring of radar SoC core and I/O rails. |
Use Scenario: Manages power for multi-core automotive MCU (e.g., S32G), Ethernet switch, and PCIe bridge in zonal architecture domain controller. IC Role / Device Role / Timing Role: System basis chip delivering synchronized startup, fault-aware reset signaling, and cross-rail voltage supervision. Use Value: Reduces BOM count by consolidating 5 regulators + 10 monitors + safety logic into single HPQFN48 package. |
| 12 V Battery Network Vehicle Control Unit | Camera-Based Vision System |
|
Use Scenario: Supplies power to body control module (BCM) with LIN gateway, door actuator drivers, and LED lighting controllers. IC Role / Device Role / Timing Role: Fail-safe power manager handling cold-crank (4.5 V) to load-dump (36 V) conditions while maintaining ASIL B integrity. Use Value: Enables single-chip solution for 12 V vehicle networks with integrated wake-up detection (WAKE1/WAKE2) and battery-switch control (BAT_SW). |
Use Scenario: Powers mono/stereo camera ECU with image sensor, ISP, and MIPI CSI-2 transmitter in driver-monitoring or surround-view systems. IC Role / Device Role / Timing Role: Regulates VCORE (1.0–1.2 V), I/O (1.8–3.3 V), and analog (2.8–5.0 V) rails with tight sequencing and ±1 % monitoring. Use Value: Ensures deterministic power-up timing and rail integrity required for pixel-perfect image capture and low-latency processing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fail-safe SBC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MFS8632BMDA0ES | Lacks ERRMON input and challenger watchdog (FCCU) support; limited to ASIL B simple watchdog only. | Suitable for cost-sensitive ADAS sub-modules where external IC failure monitoring is not required. | Select when full ERRMON/FCCU2 capability is unnecessary and OTP A0 configuration suffices. |
| MFS8623BMDA0ES | Rated for 24 V battery network (60 V max); lacks integrated BUCK regulator; requires external buck for VCORE. | Targeted at truck/bus applications needing higher input voltage tolerance but lower integration density. | Choose for 24 V commercial vehicle platforms where 15 A VPRE and BOOST are critical but internal BUCK is redundant. |
Compared with MFS8633BMDA0ESR2, MFS8632BMDA0ES reduces safety monitoring depth while retaining identical package and pinout, whereas MFS8623BMDA0ES trades BUCK integration for extended input voltage range - making MFS8633BMDA0ESR2 optimal for balanced 12 V ADAS domain controllers requiring full safety feature set and highest integration.
Availability
MFS8633BMDA0ESR2 is available at Aetrix Electronics and suitable for radar ECUs, ADAS domain controllers, and 12 V battery network vehicle control units requiring stable component supply, long-term automotive lifecycle support, and ISO 26262-compliant power management.
Supply support for MFS8633BMDA0ESR2 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 automotive microcontrollers and power management ICs.
The FS86 family, including MFS8633BMDA0ESR2, was developed to deliver scalable, ISO 26262-compliant system basis chips for next-generation automotive domain controllers - unifying power, safety, and synchronization in a single package.
FAQ
What is the maximum input voltage rating for MFS8633BMDA0ESR2?
MFS8633BMDA0ESR2 is rated for 36 V maximum DC input voltage on VSUP1 and VSUP2 pins, making it suitable for 12 V automotive battery networks including transient conditions like load dump. This differs from the 60 V-rated FS86 variants intended for 24 V truck/bus applications.
Does MFS8633BMDA0ESR2 include an integrated buck converter?
Yes, MFS8633BMDA0ESR2 integrates a synchronous low-voltage buck converter (BUCK) capable of delivering up to 2.5 A at configurable output voltages from 1.0 V to 3.3 V. Its BUCK_SW, BUCK_IN, and BUCK_FB pins provide direct access to the switching node, input, and feedback loop for stability tuning.
How many voltage monitoring inputs does MFS8633BMDA0ESR2 support?
MFS8633BMDA0ESR2 supports ten voltage monitoring inputs (VMON0 through VMON9) with ±1 % accuracy across temperature. These include DAC-based inputs (VMON1–VMON3), internal resistor-bridge inputs (VMON4_RINT), and external resistor-bridge inputs (VMON5_RES through VMON9_RES), enabling comprehensive rail supervision.
Is MFS8633BMDA0ESR2 pin-compatible with other FS86 family members?
MFS8633BMDA0ESR2 uses the HPQFN48eP package and shares identical pinout with all FS86x3 variants (e.g., MFS8603, MFS8613, MFS8623). However, functional differences exist - for example, MFS8633BMDA0ESR2 includes ERRMON and challenger watchdog support not present in MFS8632BMDA0ES.
What safety certifications apply to MFS8633BMDA0ESR2?
MFS8633BMDA0ESR2 is developed in compliance with ISO 26262 and qualified to AEC-Q100 Grade 1 (−40 °C to +125 °C ambient). It supports ASIL B system integration and includes LBIST/ABIST, dedicated voltage monitors, fail-safe outputs (PGOOD/RSTB/FS0B), and hardware-level MCU failure detection via FCCU1/FCCU2.
MFS8633BMDA0ESR2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 48-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Camera
- Current - Supply:
- -
- Voltage - Supply:
- 36V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 48-HVQFN (7x7)
MFS8633BMDA0ESR2 FAQ
1.How can I place an order for MFS8633BMDA0ESR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MFS8633BMDA0ESR2 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 MFS8633BMDA0ESR2 reliable?
The price and inventory of MFS8633BMDA0ESR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MFS8633BMDA0ESR2 is usually 5 days.
3.What payment methods are accepted for MFS8633BMDA0ESR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MFS8633BMDA0ESR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MFS8633BMDA0ESR2?
MFS8633BMDA0ESR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MFS8633BMDA0ESR2 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 MFS8633BMDA0ESR2?
For technical support, including MFS8633BMDA0ESR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MFS8633BMDA0ESR2 requirements.
6.How does Aetrix verify that MFS8633BMDA0ESR2 is sourced from the original manufacturer or authorized distributors?
All MFS8633BMDA0ESR2 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 MFS8633BMDA0ESR2 meets industry standards.
7.What is the process for return or replacement of MFS8633BMDA0ESR2?
All MFS8633BMDA0ESR2 units undergo pre-shipment inspection (PSI). If there is an issue with MFS8633BMDA0ESR2, 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 MFS8633BMDA0ESR2 part is unused and in its original packaging.
Return procedure for MFS8633BMDA0ESR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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