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NXP Semiconductors MFS8611BMBA0ESR2
- Part No.:
- MFS8611BMBA0ESR2
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Management - Specialized
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
MFS8611BMBA0ESR2.pdf
- Description:
- SAFETY SYSTEM BASIS CHIP FOR DOM
- Quantity:
- Payment:
- Shipping:
Inventory:3,092
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Product details
Overview
MFS8611BMBA0ESR2 from NXP Semiconductors is a fail-safe system basis chip (SBC) designed for automotive domain controllers requiring integrated power management and functional safety. It delivers 15 A VPRE buck controller, 2.5 A integrated BUCK, 1 A BOOST, dual 400 mA LDOs, ±1 % voltage monitoring across ten inputs, and ASIL B compliance for ADAS and radar systems.
For engineers reviewing the MFS8611BMBA0ESR2 datasheet, MFS8611BMBA0ESR2 pinout, MFS8611BMBA0ESR2 application, or MFS8611BMBA0ESR2 equivalent, this page provides verified technical context, safety-critical power sequencing details, I²C-configurable regulator outputs, and validated alternatives for 24 V battery network domain controller designs.
Technical Context
The MFS8611BMBA0ESR2 implements a leader/follower power-up sequencing architecture via XFAILB to synchronize cascaded SBCs in BYLink platform designs. Its fail-safe state machine independently monitors ten voltage rails-including external PMICs-with dedicated analog multiplexer (AMUX) and configurable VMONx inputs for QM rail supervision.
It integrates three switching regulators (VPRE, BOOST, BUCK), two LDOs (LDO1/LDO2), and safety peripherals including PGOOD/RSTB/FS0B outputs, ERRMON input, FCCU-based MCU failure detection, and LBIST/ABIST self-test. All regulated outputs support programmable voltage levels and current limits via 32-bit I²C with 8-bit CRC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 60 V DC max for 24 V battery networks - enables robust operation in truck/bus applications with load dump transients. |
| VPRE Output Capability | Configurable 3.3–5.0 V, up to 15 A DC - supports high-current pre-regulation for main MCU cores or FPGAs. |
| BUCK Output | Configurable 1.0–3.3 V, up to 2.5 A DC - powers low-voltage digital logic (e.g., MCU core, SerDes PHY). |
| BOOST Output | Configurable 5–6 V, up to 1 A DC - supplies CAN transceivers or sensor biasing circuits. |
| Voltage Monitoring Accuracy | ±1 % across 10 inputs - ensures precise supervision of internal and external power rails per ISO 26262 ASIL B requirements. |
| Operating Temperature | −40 °C to +125 °C ambient - qualified for under-hood automotive environments per AEC-Q100 Grade 1. |
| I²C Interface | 32-bit command with 8-bit CRC - provides secure, error-checked configuration and status reporting for safety-critical systems. |
Pinout & Package
Package: HPQFN48eP (48-pin plastic thermally enhanced very thin quad flat package with wettable flanks and exposed pad).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSUP1/VSUP2 | Main power supply inputs | Accept 60 V DC max; require external reverse-battery protection diodes for automotive durability. |
| VPRE-related pins (PRE_SW, PRE_GHS, PRE_GLS, PRE_FB, PRE_CSP/CN) | External buck controller interface | Drive external high-side/low-side MOSFETs; enable 15 A output with e-fuse shutdown capability. |
| BUCK_SW / BUCK_IN / BUCK_FB | Integrated synchronous buck converter | Self-contained 2.5 A regulator with feedback loop for stable 1.0–3.3 V output without external FETs. |
| LDO1 / LDO2 | Dual linear regulator outputs | Configurable 1.1–5.0 V outputs; LDO1 includes load switch function for peripheral power gating. |
| VMON0_I2C through VMON9_RES | Voltage monitoring inputs | Support up to 10 monitored rails; VMON0–3 use DAC inputs, VMON4–9 use resistor-bridge inputs with ±1 % accuracy. |
| XFAILB | Power synchronization I/O | Enables cascaded sequencing with other NXP SBCs in BYLink platform for synchronized safe-state transitions. |
| PGOOD / RSTB / FS0B | Fail-safe outputs | Open-drain active-low signals with latent fault detection - directly control MCU reset and system fail-safe state. |
| FCCU1/FCCU2 / ERRMON | MCU and external IC failure monitoring | Monitor PWM watchdog signals from MCU and error flags from companion ICs (e.g., PF50) for end-to-end safety coverage. |
Key Features
| Feature | Design Value |
|---|---|
| BYLink synchronization | Enables multiple SBCs to behave as one system with coordinated power-up/down and fail-safe state propagation. |
| 10-rail voltage monitoring | Monitors internal regulators and external PMIC rails with ±1 % accuracy - extends safety concept beyond NXP components. |
| e-Fuse protected VPRE | Shuts down 15 A VPRE output during overcurrent or fault events - prevents damage to downstream circuitry. |
| OTP-programmable configuration | Allows device customization (e.g., voltage setpoints, sequencing delays, safety thresholds) without hardware changes. |
| EMC-optimized switching | Includes spread spectrum, slew rate control, and manual frequency tuning to meet automotive radiated/conducted emission standards (FMC1278, IEC 61967-4). |
Applications
| ADAS Domain Controller | Radar Processing Unit |
|---|---|
Use Scenario: Centralized power and safety management for multi-MCU ADAS domain controller handling camera, radar, and V2X processing. IC Role / Device Role / Timing Role: System basis chip providing sequenced VPRE, BUCK, BOOST, and LDO outputs; supervising all rails and asserting PGOOD/RSTB/FS0B on fault. Use Value: Reduces board area and BOM count by integrating eight power domains and safety monitoring into single HPQFN48eP package. | Use Scenario: Powering 77 GHz radar SoC and RF front-end modules in automotive corner radar or imaging radar systems. IC Role / Device Role / Timing Role: Supplies clean, sequenced 1.2 V core (BUCK), 3.3 V I/O (LDO1), 5.5 V CAN (BOOST), and 5.0 V analog (VPRE); monitors all rails for ASIL B compliance. Use Value: Enables deterministic power-up timing and fail-safe shutdown within <10 ms to meet radar functional safety requirements. |
| 24 V Battery Network ECU | Electrified Chassis Module |
Use Scenario: Electronic control unit in commercial vehicle chassis systems operating from 24 V battery with 60 V load dump tolerance. IC Role / Device Role / Timing Role: Primary power manager delivering 15 A VPRE for main processor, 2.5 A BUCK for microcontroller, and dual LDOs for sensors and communication interfaces. Use Value: Withstands 60 V transients and supports −40 °C to +125 °C operation - eliminates need for external TVS or discrete regulators. | Use Scenario: Power management for electrified suspension or brake-by-wire modules requiring high-reliability ASIL B domain control. IC Role / Device Role / Timing Role: Provides fail-safe power sequencing, voltage supervision, and MCU watchdog monitoring while interfacing with external safety MCUs via FCCU and ERRMON. Use Value: Integrates LBIST/ABIST and independent analog/digital monitoring paths - satisfies diagnostic coverage targets for ISO 26262 ASIL B. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fail-safe SBC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MFS8613BMBA0ESR2 | Includes LDO2 and full 10-VMON capability; same 60 V input, ASIL B rating, and HPQFN48eP package. | Supports additional LDO2 output and full 10-rail monitoring - suitable when both LDOs and maximum VMON count are required. | Select MFS8613BMBA0ESR2 if dual LDO outputs and all 10 VMON inputs must be enabled simultaneously. |
| MFS8623BMDA0ESR2 | ASIL D rated, 36 V max input, supports 12 V battery networks; identical feature set otherwise. | Targeted at passenger car 12 V systems requiring higher safety integrity (ASIL D) and lower voltage rating. | Choose MFS8623BMDA0ESR2 only for ASIL D-compliant 12 V applications where 36 V max input suffices. |
Compared with MFS8611BMBA0ESR2, MFS8613BMBA0ESR2 adds LDO2 and full VMON support without changing pinout or software compatibility, while MFS8623BMDA0ESR2 upgrades to ASIL D but reduces input voltage range - making MFS8611BMBA0ESR2 optimal for cost-sensitive ASIL B 24 V domain controllers needing exactly six regulated outputs.
Availability
MFS8611BMBA0ESR2 is available at Aetrix Electronics and suitable for ADAS domain controllers, radar processing units, and 24 V battery network ECUs requiring stable component supply, long-term automotive qualification, and functional safety compliance.
Supply support for MFS8611BMBA0ESR2 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 processors and safety-certified power management.
The FS86 family - including MFS8611BMBA0ESR2 - was developed to address scalable, fail-safe power management needs in automotive domain controllers, supporting ASIL B to ASIL D systems with integrated SMPS, LDOs, and ISO 26262-compliant safety mechanisms.
FAQ
What is the maximum input voltage supported by the MFS8611BMBA0ESR2?
The MFS8611BMBA0ESR2 supports a maximum input voltage of 60 V DC on VSUP1 and VSUP2 pins, making it suitable for 24 V battery network applications in trucks and buses where load dump transients occur. This rating is confirmed in Table 4 of the FS8600_SDS Rev. 3.0 and applies specifically to part numbers ending in "BMBA0ES", including MFS8611BMBA0ESR2.
Does the MFS8611BMBA0ESR2 include integrated MOSFETs for all its switching regulators?
No - the MFS8611BMBA0ESR2 integrates MOSFETs only for the BOOST and BUCK regulators. The VPRE regulator requires external high-side and low-side MOSFETs, controlled via PRE_GHS, PRE_GLS, and PRE_SW pins. This architecture enables the 15 A VPRE output while maintaining thermal efficiency and flexibility in high-current designs.
How many voltage monitoring inputs does the MFS8611BMBA0ESR2 support, and what is their accuracy?
The MFS8611BMBA0ESR2 supports up to 10 voltage monitoring inputs (VMON0–VMON9) with ±1 % accuracy, as specified in Section 1 and Table 1 of FS8600_SDS Rev. 3.0. VMON0 uses an I²C-connected input, VMON1–VMON3 are DAC-based, and VMON4–VMON9 are resistor-bridge inputs - all calibrated to meet ASIL B monitoring requirements.
Is the MFS8611BMBA0ESR2 pin-compatible with other FS86 family members?
Yes - the MFS8611BMBA0ESR2 uses the HPQFN48eP package and shares identical pinout with all FS86xxBMBA0ES and FS86xxBMDA0ES variants, including MFS8613BMBA0ESR2 and MFS8623BMDA0ESR2. Pin compatibility is confirmed in Table 2 and Figure 3 of FS8600_SDS Rev. 3.0, enabling hardware reuse across ASIL B and ASIL D variants.
What safety certifications apply to the MFS8611BMBA0ESR2?
The MFS8611BMBA0ESR2 is developed in compliance with ISO 26262 and qualified per AEC-Q100 Grade 1 (−40 °C to +125 °C). It achieves ASIL B functional safety capability through independent voltage monitoring, built-in self-tests (LBIST/ABIST), fail-safe outputs (PGOOD/RSTB/FS0B), and MCU failure detection via FCCU inputs - all documented in Sections 1, 2, and 5.1 of FS8600_SDS Rev. 3.0.
MFS8611BMBA0ESR2 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:
- 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)
MFS8611BMBA0ESR2 FAQ
1.How can I place an order for MFS8611BMBA0ESR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MFS8611BMBA0ESR2 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 MFS8611BMBA0ESR2 reliable?
The price and inventory of MFS8611BMBA0ESR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MFS8611BMBA0ESR2 is usually 5 days.
3.What payment methods are accepted for MFS8611BMBA0ESR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MFS8611BMBA0ESR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MFS8611BMBA0ESR2?
MFS8611BMBA0ESR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MFS8611BMBA0ESR2 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 MFS8611BMBA0ESR2?
For technical support, including MFS8611BMBA0ESR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MFS8611BMBA0ESR2 requirements.
6.How does Aetrix verify that MFS8611BMBA0ESR2 is sourced from the original manufacturer or authorized distributors?
All MFS8611BMBA0ESR2 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 MFS8611BMBA0ESR2 meets industry standards.
7.What is the process for return or replacement of MFS8611BMBA0ESR2?
All MFS8611BMBA0ESR2 units undergo pre-shipment inspection (PSI). If there is an issue with MFS8611BMBA0ESR2, 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 MFS8611BMBA0ESR2 part is unused and in its original packaging.
Return procedure for MFS8611BMBA0ESR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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