NXP Semiconductors MFS8602BMDA0ESR2

Overview

MFS8602BMDA0ES from NXP Semiconductors is a fail-safe system basis chip (SBC) designed for automotive domain controllers requiring ASIL D compliance, integrated power management, and functional safety monitoring. It delivers 15 A VPRE buck controller output, dual LDOs (400 mA each), 1 A boost converter, 2.5 A buck regulator, ±1 % voltage monitoring across ten inputs, and failsafe outputs (PGOOD, RSTB, FS0B) for ADAS radar systems.

For engineers reviewing the MFS8602BMDA0ES datasheet, MFS8602BMDA0ES pinout, MFS8602BMDA0ES application, or MFS8602BMDA0ES equivalent, this page provides verified technical context, pin-level design meaning, safety-critical sequencing behavior, and validated alternatives for 24 V/60 V battery network domain controller designs.

Technical Context

The MFS8602BMDA0ES implements a leader/follower power-up sequencing architecture via XFAILB synchronization, enabling cascaded SBC/PMICs to behave as one safe power domain. Its fail-safe state machine independently monitors ten voltage rails-including external PMICs-with ±1 % accuracy and supports challenger watchdog monitoring via FCCU1/FCCU2 inputs for MCU hardware failure detection.

It integrates an I²C-controlled analog multiplexer (AMUX) for dynamic rail selection into MCU ADC, e-fuse–protected 15 A VPRE high-voltage buck with external FETs, and dedicated ERRMON input for external IC failure signaling-enabling full-system fault containment without MCU intervention.

Key Specifications

Pinout & Package

HPQFN48eP package with exposed pad (EP) thermally connected to GND; 48-pin layout supports high-current routing (VPRE, BUCK_SW, PRE_SW) and safety-critical signal isolation (FS0B, RSTB, ERRMON).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar fail-safe SBC applications.

Compared with MFS8602BMDA0ES, MFS8603BMDA0ES adds BOOST functionality at identical ASIL D safety scope, while MFS8613BMDA0ES trades 60 V input capability for 12 V network optimization-making MFS8602BMDA0ES the sole fit for 24 V/60 V ASIL D domain controllers.

Availability

MFS8602BMDA0ES is available at Aetrix Electronics and suitable for automotive domain controllers, radar processing units, and commercial vehicle telematics requiring stable component supply, ASIL D certification, and 60 V input resilience.

Supply support for MFS8602BMDA0ES 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 markets, with leadership in functional safety and automotive-grade power management.

The FS86 family-including MFS8602BMDA0ES-is engineered for ASIL B to ASIL D domain controller power architectures, delivering scalable, synchronized, and fail-safe power management for next-generation ADAS and electrification systems.

FAQ

What is the maximum input voltage supported by the MFS8602BMDA0ES?

The MFS8602BMDA0ES supports up to 60 V DC on VSUP1 and VSUP2 pins, making it suitable for 24 V battery network applications including trucks and buses where load-dump transients reach 60 V. This rating is confirmed in Table 4 of the FS8600_SDS Rev. 3.0 and applies specifically to part numbers ending in "BMDA0ES" (ASIL D, 60 V variant). Operation above 60 V risks permanent damage.

Does the MFS8602BMDA0ES include a built-in boost converter?

No, the MFS8602BMDA0ES does not integrate a boost converter. Per Table 1 in the FS8600_SDS, the FS8602 variant supports VPRE, BUCK, LDO1, LDO2, and voltage monitoring-but excludes BOOST. The MFS8603BMDA0ES is the variant that includes the 5–6 V, 1 A boost converter. This distinction is fixed by silicon configuration and cannot be enabled via OTP.

How many voltage rails can the MFS8602BMDA0ES monitor, and what is the accuracy?

The MFS8602BMDA0ES monitors up to ten voltage rails with ±1 % accuracy across temperature and load conditions. This includes three DAC-based inputs (VMON1–3) and seven resistor-bridge inputs (VMON4–9), as specified in Section 2 and Table 1 of FS8600_SDS Rev. 3.0. All ten inputs are active and validated for ASIL D decomposition in safety-critical designs.

What package type and thermal performance does the MFS8602BMDA0ES use?

The MFS8602BMDA0ES uses the HPQFN48eP package (SOT619-26), a 7 mm × 7 mm wettable-flank QFN with exposed thermal pad. Its thermal resistance is RθJA = 23 °C/W (2s6p layout), RθJB = 10 °C/W, and RθJC_BOT = 1 °C/W-enabling reliable operation at 125 °C ambient when mounted on 2 oz copper with 6 thermal vias, as documented in Table 5 of FS8600_SDS.

Is the MFS8602BMDA0ES pin-compatible with other FS86 family members?

Yes, all FS86 family devices-including MFS8602BMDA0ES-are pin-compatible within the HPQFN48eP package. Pin functions, placement, and electrical characteristics (e.g., VSUP, PGOOD, RSTB, XFAILB) are identical across variants (FS8600–FS8633). Differences are limited to OTP-configured features (e.g., BOOST presence) and maximum input voltage rating (60 V vs. 36 V), not pinout or footprint.