MC33888FBR2

Overview

The MC33888FBR2 is a single-package power switch and driver IC manufactured by NXP USA Inc. It integrates four discrete high-side MOSFETs and eight low-side drivers with an integrated control die. The device supports a load voltage range of 6V to 27V and operates within a junction temperature range of -40°C to 150°C. It features a 16-bit SPI interface for programming, control, and diagnostics. The package is a 64-PowerBQFP (64-PQFP). Key electrical parameters include typical on-resistances of 10 mΩ, 40 mΩ, and 600 mΩ for the respective switches.

Feature Summary

• Integrates dual 10 mΩ, dual 40 mΩ high-side, and octal 600 mΩ low-side switches in a single package.
• Provides full operating voltage support from 6.0 V to 27 V with enhanced reverse polarity protection.
• Enables comprehensive control and diagnostics via a 16-bit SPI interface, including watchdog timeout and fault reporting.
• Includes hardware parallel inputs for PWM control on high-side outputs and configurable direct inputs for low sides.

Applications

• Motorcycle Engine Control Unit (ECU)
• Small Engine Control Systems
• Lawn Equipment Controllers
• Electric Generators
• Marine Engines and Personal Watercraft

Procurement Notes

Verify component authenticity through authorized distributors or the manufacturer directly. Confirm the specific suffix 'R2' indicates the reel packaging format as documented in ordering information. Check for RoHS compliance status and REACH registration details relevant to your region. Ensure the 64-PQFP package dimensions match your PCB footprint requirements. Review the datasheet revision history for any updates to electrical characteristics or pin assignments before finalizing procurement.

Selection Notes

Select this component when a high-density solution for automotive-grade switching is required. It is suitable for applications needing independent control of multiple loads with diagnostic feedback. Consider the SPI interface complexity and the need for external pull-up resistors if using parallel PWM inputs. Evaluate thermal management requirements given the power dissipation characteristics of the integrated MOSFETs. Ensure the supply voltage range aligns with the system's power architecture.

Part Context

The MC33888 series belongs to NXP’s portfolio of analog mixed-signal ICs designed for powertrain and engine control applications. It complements microcontrollers like the KEA and S32K families by providing robust power switching capabilities. The device is part of a broader ecosystem of U-Chip solutions aimed at reducing system bill of materials and board space for automotive quality standards.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing firmware and hardware designs if considering alternative devices from other manufacturers. Consult NXP technical support for potential obsolescence management strategies or recommended upgrades within the same product family.

FAQ

How is PWM control implemented for the high-side outputs?

Each high-side output has its own parallel input for pulse-width modulation (PWM) control if desired, allowing for hardware-based duty cycle adjustment without constant SPI intervention.

What diagnostic features are supported via the SPI interface?

The SPI interface allows for reporting of program status and faults, including open load detection, overcurrent limit configuration, and watchdog timeout monitoring.

What is the maximum operating temperature for the MC33888FBR2?

The device supports a junction temperature range up to 150°C, making it suitable for harsh automotive environments.