MP6531AGF

Overview

The MP6531AGF-Z is a three-phase brushless DC motor pre-driver from Monolithic Power Systems, designed for automotive and industrial applications. It operates within a supply voltage range of 5V to 60V and supports high-side and low-side inputs for external MOSFET control. The device features integrated protection mechanisms including overcurrent protection, under-voltage lockout, and thermal shutdown. It is housed in a TSSOP-EP-28 surface-mount package with an exposed pad for enhanced thermal dissipation. The component is qualified to AEC-Q100 standards, ensuring reliability in demanding environments.

Feature Summary

• Supports three-phase BLDC motor control with external N-channel MOSFETs
• Integrated programmable overcurrent protection and adjustable dead-time control
• Low-power sleep mode optimized for battery-powered applications
• AEC-Q100 qualified for automotive grade reliability

Applications

• Automotive cooling fans and pumps
• Industrial servo drives
• Home appliance motor control
• Electric power steering systems

Procurement Notes

Verify the specific suffix (e.g., -Z or -P) against your bill of materials, as packaging and tape specifications vary by suffix. Confirm AEC-Q100 qualification requirements if deploying in automotive contexts. Check moisture sensitivity levels and reflow soldering profiles prior to assembly. Ensure input voltage ranges align with your system's 5V to 60V operational limits.

Selection Notes

Select this pre-driver when external MOSFETs are preferred for higher current handling or custom thermal management. Compare against integrated driver solutions if board space is constrained. Consider the 60V maximum rating for compatibility with 12V, 24V, and 48V automotive bus architectures. Evaluate thermal performance requirements given the TSSOP-EP-28 package limitations.

Part Context

The MP6531 series complements MPS's portfolio of motor control ICs, bridging the gap between simple gate drivers and fully integrated motor controllers. It allows designers to customize power stages using discrete MOSFETs while retaining sophisticated control logic. This approach offers flexibility in selecting MOSFETs based on specific current and voltage ratings not available in fixed-integration packages.

Replacement Considerations

The MP6530GF-P/Z serves as a functional predecessor in the same family with similar pinouts and protection features. Verify pin compatibility and parameter overlaps before substitution. The MPQ6531GV-AEC1-P is the automotive-qualified variant with identical electrical characteristics but may differ in packaging suffixes.