MC33931VW

Overview

The MC33931VW is a high-current H-bridge motor driver manufactured by NXP Semiconductors. It integrates four gate drivers for high-side and low-side power switches, designed for applications requiring robust motor control. The device supports supply voltages ranging from 5 V to 28 V and delivers continuous output currents up to 5 A. It features an integrated sleep mode for power management and includes diagnostic capabilities such as over-temperature protection and current limiting. The component is housed in a thermally enhanced SOIC Wide (SOICW) package with exposed pad for improved heat dissipation.

Feature Summary

• Integrated H-Bridge architecture supporting brushed DC motor control
• Built-in diagnostic functions including over-temperature and short-circuit protection
• Low-power sleep mode capability for energy efficiency
• Thermally optimized surface-mount packaging

Applications

• Automotive throttle control systems
• Brushed DC motor drives in industrial equipment
• Valve actuation mechanisms
• Fan and pump speed control applications

Procurement Notes

Verify the specific suffix 'VW' corresponds to the SOICW package variant when sourcing. Confirm RoHS compliance status through official NXP documentation or authorized distributors. Check for end-of-life notifications as this component may be subject to phase-out schedules. Ensure compatibility with existing PCB thermal design requirements due to the exposed pad structure.

Selection Notes

Select this component for applications requiring moderate current handling up to 5 A with integrated protection features. Consider the operating temperature range of -40°C to +125°C for automotive or harsh environment deployments. Evaluate the need for external flyback diodes if driving inductive loads beyond the internal protection limits. Compare against the MC33932 if additional fault reporting or different pinout configurations are required.

Part Context

The MC33931 belongs to NXP's family of high-current H-bridge drivers, often used alongside the MC33932 which offers similar performance with enhanced diagnostic feedback. These devices are commonly found in automotive electronic throttle bodies and other motion control systems where reliability under high thermal stress is critical. The series represents a transition from discrete MOSFET solutions to integrated monolithic drivers.

Replacement Considerations

MC33932EK is a functional substitute within the same family offering similar drive capabilities but with added diagnostic features. Verify pin-to-pin compatibility and thermal performance characteristics before substitution. Ensure that any replacement part meets the same automotive qualification standards if applicable.