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NXP Semiconductors MFS8611BMDA0ESR2
- Part No.:
- MFS8611BMDA0ESR2
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Management - Specialized
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
MFS8611BMDA0ESR2.pdf
- Description:
- SAFETY SYSTEM BASIS CHIP FOR DOM
- Quantity:
- Payment:
- Shipping:
Inventory:3,696
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Product details
Overview
MFS8611BMDA0ES from NXP Semiconductors is a fail-safe system basis chip (SBC) designed for automotive domain controllers, integrating a 15 A high-voltage buck controller (VPRE), 1 A boost converter (BOOST), 2.5 A low-voltage synchronous buck (BUCK), two 400 mA LDOs (LDO1/LDO2), and ten ±1 % accurate voltage monitoring inputs. It supports ASIL D compliance per ISO 26262 and operates across 12 V (36 V max) and 24 V (60 V max) battery networks in ADAS and radar systems.
For engineers reviewing the MFS8611BMDA0ES datasheet, MFS8611BMDA0ES pinout, MFS8611BMDA0ES application, or MFS8611BMDA0ES equivalent, this page delivers verified functional safety architecture, precise regulator specifications, I²C-configurable power sequencing, and fail-safe output behavior critical for automotive ECU design validation and safety-critical power management selection.
Technical Context
The MFS8611BMDA0ES implements a leader/follower power-up sequencing architecture via the XFAILB pin, enabling synchronized startup with cascaded NXP PMICs in BYLink platform designs. Its fail-safe state machine independently monitors ten voltage rails-including external PMIC outputs-using dedicated analog multiplexer (AMUX) and dual monitoring paths (DAC- and resistor-bridge-based).
It features a 32-bit I²C interface with 8-bit CRC for configuration and watchdog communication, supports optional 10 ms RSTB release delay for MCU compatibility, and integrates logical/analogue built-in self-test (LBIST/ABIST) alongside dedicated FCCU1/FCCU2 inputs for PWM-based MCU failure detection and ERRMON for external IC fault reporting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 36 V max for 12 V battery networks; enables robust operation in automotive start-stop and load-dump conditions. |
| VPRE Output Current | Up to 15 A DC with e-fuse protection; provides primary high-power rail for radar SoCs or ADAS MCUs without external current limiting. |
| BUCK Output Range | 1.0 V to 3.3 V configurable; supplies core voltage to safety-critical microcontrollers with tight regulation. |
| Voltage Monitoring Accuracy | ±1 % across 10 inputs; ensures reliable QM rail supervision from non-NXP components in mixed-supplier ECUs. |
| Fail-Safe Outputs | PGOOD, RSTB, FS0B with latent fault detection; delivers deterministic safe-state signaling during internal or external faults. |
| Thermal Resistance | RθJA = 23 °C/W (2s6p); supports sustained 15 A operation under industrial ambient (−40 °C to 125 °C) with standard PCB layout. |
| I²C Interface | 32-bit addressable with 8-bit CRC; prevents configuration corruption in noisy automotive environments. |
Pinout & Package
Package: HPQFN48eP - 48-pin plastic thermally enhanced very thin quad flat package with wettable flanks and exposed pad (EP) connected to GND for optimized thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSUP1/VSUP2 | Main power supply inputs | Accept 36 V max input; require external reverse-battery diodes for automotive-grade protection. |
| PRE_SW / PRE_GHS / PRE_GLS | VPRE gate drive and switching node | Interface directly with external high-side/low-side MOSFETs for 15 A buck conversion; supports e-fuse shutdown. |
| BUCK_SW / BUCK_FB | Integrated buck switch node and feedback | Enables 2.5 A regulated output with internal synchronous rectification and precision voltage sensing. |
| VMON0_I2C to VMON9_RES | Voltage monitoring inputs | Support up to 10 independent rails; VMON0–3 use DAC reference, VMON4–9 use resistor-divider inputs with ±1 % accuracy. |
| XFAILB | Power synchronization I/O | Coordinates power-up sequencing across multiple SBCs in domain controller stacks without external timing logic. |
| PGOOD / RSTB / FS0B | Fail-safe outputs | Open-drain active-low signals with latent fault detection; drive external reset logic or safety cut-off circuits. |
| SCL / SDA | I²C bus interface | 32-bit addressable with CRC; used for OTP configuration, register read/write, and watchdog challenge-response. |
| FCCU1 / FCCU2 | MCU failure monitoring inputs | Accept PWM signals from MCU to detect lockup or timing violations; trigger fail-safe state transition if missed. |
Key Features
| Feature | Design Value |
|---|---|
| BYLink synchronization | Enables multi-SBC coordination as single power domain, eliminating discrete sequencing ICs and reducing BOM count. |
| 10-channel ±1 % voltage monitor | Validates QM rails from third-party PMICs or sensors, extending functional safety coverage beyond NXP silicon. |
| ASIL D-compliant architecture | Includes LBIST/ABIST, dual watchdog paths (simple/challenger), and independent monitoring circuitry meeting ISO 26262 requirements. |
| Configurable 15 A VPRE controller | External FET control allows thermal and layout optimization; e-fuse shuts down system within microseconds on overcurrent. |
| OTP-programmable configuration | A0 OTP code enables factory-customized settings (e.g., voltage levels, sequencing delays, monitoring enablement) without hardware changes. |
Applications
| Radar Domain Controller | ADAS Central ECU |
|---|---|
Use Scenario: Powers and monitors 77 GHz radar SoC, CAN transceivers, and sensor interfaces in front-end radar modules. IC Role / Device Role / Timing Role: Provides primary 1.0 V core rail (BUCK), 3.3 V I/O rail (LDO1), 5.0 V CAN PHY rail (BOOST), and monitors all rails including external radar PMIC outputs. Use Value: Enables single-chip power management with ±1 % rail supervision, reducing component count and improving ASIL D compliance evidence for radar subsystem certification. | Use Scenario: Manages power sequencing and safety monitoring for multi-core ADAS MCU clusters in zonal architectures. IC Role / Device Role / Timing Role: Acts as leader SBC in BYLink cascade, coordinating startup of secondary PMICs while monitoring 10 voltage domains including MCU core, memory, and peripheral rails. Use Value: Eliminates discrete power sequencers and reduces inter-PMIC timing jitter, ensuring deterministic boot order required for AUTOSAR OS initialization. |
| Electric Powertrain Gateway | Automotive Camera ECU |
Use Scenario: Supplies and supervises power to gateway MCU, Ethernet switch, and isolated CAN FD interfaces in 48 V/12 V hybrid vehicle networks. IC Role / Device Role / Timing Role: Delivers 3.3 V (LDO1) and 5.0 V (BOOST) rails while monitoring battery precharge, DC-DC converter outputs, and isolation barrier supplies via VMONx inputs. Use Value: Supports dual-battery network operation (36 V max) with integrated wake-up detection on WAKE1/WAKE2 pins, enabling low-power gateway sleep modes with <10 µA OFF current. | Use Scenario: Powers stereo camera SoC, image signal processor, and MIPI CSI-2 interface in driver-monitoring or surround-view systems. IC Role / Device Role / Timing Role: Generates 1.2 V core (BUCK), 1.8 V I/O (LDO2), and 2.8 V sensor bias (LDO1), with AMUX output feeding MCU ADC for real-time rail health telemetry. Use Value: Combines precision voltage regulation and analog telemetry in one package, simplifying camera ECU layout and supporting diagnostic logging per UDS standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fail-safe SBC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MFS8613BMDA0ES | Includes integrated BUCK regulator (vs. MFS8611BMDA0ES which omits BUCK); same ASIL D rating, 36 V max, and 10 VMON inputs. | Required where local 2.5 A low-voltage rail generation is needed on-chip instead of external DC-DC; adds 1 mm² footprint but removes external buck IC. | Select MFS8613BMDA0ES when BUCK integration reduces total solution size and cost outweighs minor thermal trade-off. |
| MFS8633BMDA0ES | ASIL B rated (vs. ASIL D for MFS8611BMDA0ES); identical pinout, OTP structure, and regulator set except watchdog uses simple mode only. | Suitable for QM or ASIL B sub-systems (e.g., infotainment power management) where full ASIL D diagnostics are not mandated. | Choose MFS8633BMDA0ES for cost-sensitive non-safety-critical domains where reduced diagnostic coverage is acceptable. |
Compared with MFS8611BMDA0ES, MFS8613BMDA0ES adds on-die BUCK capability at identical ASIL D safety level, while MFS8633BMDA0ES reduces safety scope to ASIL B with simpler watchdog-enabling tiered qualification strategies across vehicle E/E architecture layers.
Availability
MFS8611BMDA0ES is available at Aetrix Electronics and suitable for automotive radar modules, ADAS domain controllers, and electric powertrain gateways requiring stable component supply, long-term lifecycle support, and AEC-Q100 Grade 1 qualification.
Supply support for MFS8611BMDA0ES 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 power management.
The FS86 family-including MFS8611BMDA0ES-is engineered for scalable, ASIL-certified power management in domain controllers, addressing the integration, safety, and thermal demands of next-generation ADAS and electrification systems.
FAQ
What is the maximum input voltage supported by the MFS8611BMDA0ES?
The MFS8611BMDA0ES supports a maximum input voltage of 36 V DC, optimized for 12 V battery network automotive applications including start-stop and load-dump conditions. This rating applies to both VSUP1 and VSUP2 pins, and external reverse-battery protection diodes are mandatory per the datasheet. The device is not rated for 60 V operation-only FS86xx parts with '3' suffix (e.g., MFS8613) support 24 V networks.
Does the MFS8611BMDA0ES include an integrated buck converter?
No, the MFS8611BMDA0ES does not include an integrated buck converter. Per Table 1 in the FS8600_SDS, the '11' variant supports VPRE, BOOST, and LDOs but excludes the BUCK regulator. This distinguishes it from MFS8613BMDA0ES, which includes the 2.5 A integrated BUCK. The MFS8611BMDA0ES relies on external buck stages for low-voltage rail generation.
How many voltage monitoring inputs does the MFS8611BMDA0ES support, and what is their accuracy?
The MFS8611BMDA0ES supports up to 10 voltage monitoring inputs (VMON0 through VMON9), with ±1 % accuracy across the full operating temperature range (−40 °C to 125 °C). Inputs are split between DAC-referenced (VMON0–VMON3) and resistor-bridge types (VMON4–VMON9), enabling supervision of both internal regulators and external PMIC rails in mixed-supplier ECUs.
What safety certifications apply to the MFS8611BMDA0ES?
The MFS8611BMDA0ES is developed in compliance with ISO 26262 up to ASIL D and qualified per AEC-Q100 Grade 1 (−40 °C to 125 °C). It incorporates LBIST/ABIST, dual watchdog paths (simple and challenger), independent voltage monitoring, and fail-safe outputs (PGOOD, RSTB, FS0B) with latent fault detection-all validated for automotive safety-critical applications.
Is the MFS8611BMDA0ES pin-compatible with other FS86 family members?
Yes, the MFS8611BMDA0ES is pin-compatible with all FS86 family variants in the HPQFN48eP package, including MFS8613BMDA0ES and MFS8633BMDA0ES. Pin functions, layout, and thermal pad configuration are identical across the family, enabling hardware reuse and simplified migration between ASIL D and ASIL B configurations or BUCK-included variants.
MFS8611BMDA0ESR2 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)
MFS8611BMDA0ESR2 FAQ
1.How can I place an order for MFS8611BMDA0ESR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MFS8611BMDA0ESR2 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 MFS8611BMDA0ESR2 reliable?
The price and inventory of MFS8611BMDA0ESR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MFS8611BMDA0ESR2 is usually 5 days.
3.What payment methods are accepted for MFS8611BMDA0ESR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MFS8611BMDA0ESR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MFS8611BMDA0ESR2?
MFS8611BMDA0ESR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MFS8611BMDA0ESR2 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 MFS8611BMDA0ESR2?
For technical support, including MFS8611BMDA0ESR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MFS8611BMDA0ESR2 requirements.
6.How does Aetrix verify that MFS8611BMDA0ESR2 is sourced from the original manufacturer or authorized distributors?
All MFS8611BMDA0ESR2 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 MFS8611BMDA0ESR2 meets industry standards.
7.What is the process for return or replacement of MFS8611BMDA0ESR2?
All MFS8611BMDA0ESR2 units undergo pre-shipment inspection (PSI). If there is an issue with MFS8611BMDA0ESR2, 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 MFS8611BMDA0ESR2 part is unused and in its original packaging.
Return procedure for MFS8611BMDA0ESR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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