MC33887PFK

Overview

The MC33887PFK is a high-performance H-bridge motor driver manufactured by NXP Semiconductors, designed for robust control of brushed DC motors. It integrates an H-bridge topology with load current feedback capabilities, enabling precise monitoring and protection mechanisms. The device operates within a supply voltage range of 5 V to 28 V and supports continuous output currents up to 5 A. Key functional features include current feedback, sleep mode for power management, and compatibility with standard digital interfaces. It is housed in a PQFN 36-pin package (SM-5), suitable for surface-mount applications requiring compact form factors and efficient thermal dissipation in automotive and industrial environments.

Feature Summary

• Integrated H-bridge architecture with built-in load current feedback for real-time motor status monitoring
• Supports low-power sleep modes to minimize energy consumption during idle periods
• Robust design capable of handling automotive-grade electrical stress and wide operating temperature ranges

Applications

• Brushed DC motor control in automotive systems
• Small engine control units (ECU) and ignition drivers
• Industrial automation and motion control devices

Procurement Notes

Verify the exact suffix configuration when ordering, as variations such as PFKR2 indicate specific tape-and-reel packaging options. Confirm availability status directly with NXP or authorized distributors, as lifecycle stages may affect long-term supply. Ensure that the selected variant matches your PCB footprint requirements, specifically the PQFN 36-pin outline. Cross-reference datasheet revisions to guarantee compatibility with existing firmware and hardware designs.

Selection Notes

Select this component when designing circuits requiring integrated H-bridge driving with direct current sensing capabilities. It is appropriate for applications needing a single-chip solution for brushed DC motor actuation without external discrete switches. Consider the thermal performance of the PQFN package relative to your expected duty cycle and ambient conditions. Ensure the input logic levels are compatible with your microcontroller’s output voltages.

Part Context

The MC33887 series belongs to NXP’s portfolio of motor and motion controllers tailored for automotive and industrial markets. These ICs typically combine power switching elements with intelligent control features like fault detection and current regulation. The PF variant specifically denotes the package type and pinout configuration, distinguishing it from other mechanical implementations within the same functional family.

Replacement Considerations

Check for updated revision letters or alternative suffixes within the MC33887 family for potential drop-in replacements. Verify pin-to-pin compatibility if considering variants with different packaging options. Consult NXP documentation for any functional enhancements or deprecated features in newer iterations.