NXP Semiconductors MFS8602BMBA0ESR2

Overview

MFS8602BMBA0ES from NXP Semiconductors is a fail-safe system basis chip (SBC) designed for domain controller power management in ASIL B automotive applications. It integrates a 15 A high-voltage synchronous buck controller (VPRE), 1 A boost converter (BOOST), 2.5 A low-voltage buck (BUCK), two 400 mA LDOs, and monitors up to ten voltages with ±1 % accuracy. It supports 24 V battery networks (60 V max) and features I²C control, fail-safe outputs (PGOOD, RSTB, FS0B), and XFAILB-based power sequencing.

For engineers reviewing the MFS8602BMBA0ES datasheet, MFS8602BMBA0ES pinout, MFS8602BMBA0ES application, or MFS8602BMBA0ES equivalent, this page delivers verified technical context, safety-critical power architecture details, voltage monitoring capability, thermal performance data, and real-world domain controller use cases aligned with ISO 26262 and AEC-Q100 Grade 1 requirements.

Technical Context

The MFS8602BMBA0ES implements a multi-rail power management architecture with independent regulation paths: VPRE uses external FETs for 3.3–5.0 V/15 A output; BOOST delivers 5–6 V/1 A with integrated low-side FET; BUCK provides 1.0–3.3 V/2.5 A with internal synchronous rectification; LDO1 and LDO2 supply configurable 1.5–5.0 V and 1.1–5.0 V respectively at 400 mA each.

Safety functionality includes dedicated analog voltage supervision circuitry for ten inputs (±1 % accuracy), logical and analog built-in self-test (LBIST/ABIST), MCU failure monitoring via dual FCCU inputs, external IC error detection (ERRMON), and fail-safe state machine-driven outputs (PGOOD, RSTB, FS0B) with latent fault detection - all compliant with ASIL B functional safety requirements per ISO 26262.

Key Specifications

Pinout & Package

HPQFN48eP package with wettable flanks and thermally enhanced exposed pad (EP), optimized for automotive thermal cycling and solder joint reliability. Pin 1 is top-left corner (NC); EP must be connected to GND.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MFS8603BMBA0ES, MFS8602BMBA0ES reduces bill-of-materials by excluding the BUCK regulator while retaining VPRE, BOOST, LDOs, and full ASIL B safety features; versus MFS8612BMBA0ES, it offers identical functionality at lower certification cost and reduced diagnostic overhead for ASIL B applications.

Availability

MFS8602BMBA0ES is available at Aetrix Electronics and suitable for ADAS domain controllers, radar processing units, electric powertrain ECUs, and commercial vehicle gateways requiring stable component supply across automotive production lifecycles.

Supply support for MFS8602BMBA0ES 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 ICs.

The FS86 family, including MFS8602BMBA0ES, was developed to deliver scalable, ISO 26262-compliant power management for next-generation automotive domain controllers-enabling consolidation of safety-critical power rails, monitoring, and fail-safe signaling into a single chip.

FAQ

What is the maximum input voltage supported by MFS8602BMBA0ES?

MFS8602BMBA0ES supports a maximum input voltage of 60 V DC for 24 V battery network applications. This rating applies to VSUP1 and VSUP2 pins and is validated per AEC-Q100 Grade 1 requirements. The device operates down to 4.5 V battery voltage when VPRE is configured to 3.3 V, ensuring robust cold-crank performance in automotive environments.

Does MFS8602BMBA0ES include an integrated buck converter?

No, MFS8602BMBA0ES does not include an integrated buck converter. Per Table 1 in the FS8600_SDS, the FS8602 variant supports VPRE, BOOST, and two LDOs but excludes the BUCK regulator. This distinguishes it from MFS8603BMBA0ES, which includes all four regulator types. The MFS8602BMBA0ES relies on external buck stages or upstream converters for sub-3.3 V rails.

How many voltage monitoring inputs does MFS8602BMBA0ES support?

MFS8602BMBA0ES supports up to ten voltage monitoring inputs (VMON0 through VMON9), with ±1 % accuracy across all channels. These include VMON0_I2C (for FIN/AMUX/I²C supply), VMON1–3_DAC, VMON4_RINT, and VMON5–9_RES - enabling comprehensive supervision of internal regulators and external PMIC or MCU rails in ASIL B systems.

What safety certifications apply to MFS8602BMBA0ES?

MFS8602BMBA0ES is developed in compliance with ISO 26262 for functional safety and qualified per AEC-Q100 Grade 1 (−40 °C to 125 °C). It is certified for ASIL B applications, featuring LBIST/ABIST, dual FCCU inputs, ERRMON, dedicated analog supervision, and fail-safe outputs (PGOOD, RSTB, FS0B) with latent fault detection - all documented in the FS8600_SDS Rev. 3.0.

Is MFS8602BMBA0ES pin-compatible with other FS86 family members?

Yes, MFS8602BMBA0ES is pin-compatible with the entire FS86 family, including MFS8600BMBA0ES, MFS8603BMBA0ES, and ASIL D variants like MFS8612BMBA0ES. All share the HPQFN48eP (SOT619-26) package and identical pinout per Figure 3 and Table 3 of the FS8600_SDS, enabling hardware reuse across safety and feature variants.