MC33HB2000FKR2

Overview

The MC33HB2000FKR2 is a single-chip H-bridge power IC designed for brushed DC motor control in automotive applications. It integrates four low Rds(on) MOSFETs, gate drivers, charge pump, and protection circuits. The device supports input voltages from 5V to 28V with peak tolerance up to 40V. Key features include SPI programmability for current limit settings (5.4A, 7.0A, 8.8A, 10.7A) and slew rate adjustment (0.25 V/μs to >16 V/μs). It offers comprehensive diagnostic capabilities via SPI, including short-to-ground, short-to-Vbat, open load, overtemperature, and charge pump undervoltage detection.

Feature Summary

• Integrated H-bridge driver with built-in MOSFETs and protection logic
• SPI-configurable current limiting and output slew rates
• Advanced real-time diagnostic reporting for fault management
• Wide operating voltage range suitable for automotive battery systems

Applications

• Automotive windshield wiper motors
• Power window actuators
• Seat adjustment motors
• Sunroof and convertible top drives
• Electric parking brake mechanisms

Procurement Notes

Verify the suffix 'FKR2' corresponds to the specific tape-and-reel packaging configuration required for your assembly line. Confirm that the component meets the necessary automotive quality standards and functional safety requirements for your target application before finalizing procurement. Ensure compatibility with your existing SPI interface protocols.

Selection Notes

Select this component when a monolithic solution for high-current brushed DC motor control is needed. It is ideal for designs requiring precise current limiting and detailed fault diagnostics without external discrete components. Consider its wide voltage range and integrated protection features for robust automotive environments where reliability and space savings are critical.

Part Context

The MC33HB2000 belongs to NXP's HB2000 series of programmable H-bridge drivers. This series targets automotive body electronics applications requiring reliable motor actuation. The device complements NXP's broader portfolio of microcontrollers and power management ICs, providing a complete solution for motor control subsystems in modern vehicles.

Replacement Considerations

Check for direct pin-compatible replacements within the HB2000 family, such as the MC33HB2001, which may offer enhanced diagnostic features or different packaging options. Verify electrical specifications and software compatibility if migrating from older H-bridge drivers like the MC33932.

FAQ

How is the current limit configured?

The current limit is programmed via the SPI interface, allowing selection among four distinct levels: 5.4A, 7.0A, 8.8A, and 10.7A.

What diagnostic features are available?

The device provides real-time diagnostics through SPI, including detection of short-to-ground, short-to-Vbat, open load, overtemperature conditions, and charge pump undervoltage.

Can the output slew rate be adjusted?

Yes, the slew rate is configurable via SPI, offering eight steps ranging from 0.25 V/μs to over 16 V/μs to optimize EMI performance and switching speed.