MC33887DWB

Overview

The MC33887DWB is a fully integrated motor driver IC from NXP USA Inc., designed for driving brushed DC motors. It features two half-bridge outputs capable of delivering up to 5 A per channel. The device operates within a supply voltage range of 5 V to 28 V and includes load current feedback for precise control. It supports PWM frequencies up to 20 kHz and integrates protection mechanisms such as overcurrent, thermal shutdown, and undervoltage lockout. The component is housed in a 54-pin SOIC Wide (HSOP) package with an exposed pad for enhanced thermal performance.

Feature Summary

• Fully integrated dual half-bridge architecture for independent brushed DC motor control
• Integrated load current feedback enables accurate current sensing and regulation
• Comprehensive protection suite including overcurrent, thermal shutdown, and undervoltage lockout
• Supports high-frequency PWM input for smooth motor operation

Applications

• Automotive seat adjustment systems
• Power window and sunroof actuators
• Electronic throttle control modules
• General purpose industrial motor control

Procurement Notes

Verify the exact suffix 'DWB' against the manufacturer's official datasheet to confirm pinout and thermal pad configuration. Ensure compatibility with the target PCB footprint, specifically the 54-SOIC wide package dimensions. Confirm that the design accounts for the required heat dissipation given the exposed pad requirement. Check for any specific ordering or marking variations that may affect traceability.

Selection Notes

Select this component when dual-channel brushed DC motor control with integrated current feedback is required. It is suitable for applications needing robust protection features and high efficiency. Consider the thermal requirements of the HSOP-54 package and ensure adequate PCB copper area for heat sinking. Verify that the operating voltage range aligns with the system power supply.

Part Context

The MC33887 belongs to NXP's family of advanced motor drivers designed for automotive and industrial applications. It replaces older discrete solutions by integrating power MOSFETs and control logic into a single chip. This integration reduces board space and improves reliability compared to separate driver and controller components.

Replacement Considerations

Check for direct cross-references in NXP's product change notification documents. Alternative parts may require significant circuit redesign due to differences in pinout, current rating, or feedback capabilities.