MC33926AES

Overview

The MC33926AES is a SMARTMOS monolithic H-bridge power integrated circuit designed for brushed DC motor control applications. It operates within a supply voltage range of 5 V to 28 V and delivers an output current capability of 5 A. The device supports PWM frequencies up to 20 kHz and features internal constant off-time PWM for overcurrent limiting. It includes temperature-dependent current limit threshold reduction, output short-circuit protection, and internal source/sink inputs for default state definition. Qualified to AEC-Q100 standards, it functions across a temperature range of -40°C to +125°C. The component is housed in a compact HVQFN-28 package measuring 6 mm x 6 mm, suitable for surface mount installation.

Feature Summary

• Monolithic H-bridge architecture with SMARTMOS technology for enhanced thermal performance
• Integrated overcurrent limiting via internal constant off-time PWM and temperature-dependent threshold reduction
• Built-in output short-circuit protection against VPWR or ground faults
• Internal source/sink input structures define default states for floating inputs

Applications

• Automotive electronic throttle control systems
• Exhaust gas recirculation (EGR) valve actuation
• Turbocharger vane/flap control mechanisms
• Industrial and medical pump motor drives

Procurement Notes

Verify the specific suffix AES corresponds to the HVQFN-28 6x6 mm package configuration when sourcing. Confirm AEC-Q100 qualification status aligns with automotive reliability requirements. Check moisture sensitivity levels and recommended reflow profiles for proper handling during assembly processes.

Selection Notes

Select this component for applications requiring robust H-bridge control with integrated diagnostic features. Consider the 6x6 mm footprint for space-constrained designs. Ensure the 5 A current rating meets peak load demands while accounting for thermal dissipation constraints inherent to the HVQFN package type.

Part Context

Part of the MC33926 series from NXP Semiconductors, focusing on automotive-grade motor drivers. Designed to replace older solutions by offering improved thermal characteristics and smaller form factors. Supports modern engine control unit architectures demanding higher integration and reliability.

Replacement Considerations

MC33HB2000AES and MC33HB2002ES are related H-bridge drivers in the same family. Verify pin compatibility and thermal pad specifications before substitution. Ensure functional equivalence regarding current ratings and protection features.