MP6540GU-P

Overview

The MP6540GU-P is a three-phase brushless DC motor controller and driver manufactured by Monolithic Power Systems. It integrates three half-bridge power stages, each comprising six N-channel power MOSFETs, pre-drivers, gate drive power supplies, and current sense amplifiers. The device supports a supply voltage range of 5.5 V to 35 V and delivers a continuous output current of 3 A per phase. It features an internal charge pump for high-side MOSFET gate driving, enabling operation at 100% duty cycle. The component is housed in a QFN-26 package and operates within a temperature range of -40°C to +125°C.

Feature Summary

• Integrates three half-bridge drivers with built-in N-channel power MOSFETs and gate drive circuitry
• Includes an internal charge pump to support high-side MOSFET gating at 100% duty cycle
• Features integrated bidirectional current sense amplifiers for precise motor control
• Provides automatic synchronous rectification to improve efficiency

Applications

• Brushless DC motor drives
• Permanent magnet synchronous motor applications
• Smart motor and servo systems

Procurement Notes

Verify the specific suffix 'GU-P' against official Monolithic Power Systems documentation to confirm pinout compatibility and input signal configuration (PWM/ENBL vs HS/LS). Ensure that the selected variant matches the required thermal dissipation capabilities for the intended PCB layout. Cross-reference the datasheet revision history to validate electrical characteristics before finalizing procurement specifications.

Selection Notes

Select this component when designing three-phase BLDC motor systems requiring a 35 V supply limit and 3 A continuous current capability. The MP6540GU-P is suitable for applications needing integrated protection features such as overcurrent protection and thermal shutdown. Consider the QFN-26 package size and thermal performance constraints during the initial hardware design phase to ensure adequate heat dissipation.

Part Context

The MP6540GU-P belongs to the MP6540 family of three-phase power stage controllers from Monolithic Power Systems. This series is designed for compact motor control solutions, integrating power switching and logic functions into a single IC. The GU-P designation indicates a specific package and input configuration variant within the broader MP6540 product line, distinct from other variants like the MP6540AGU-P or MP6540HGU-P which may offer different voltage ratings or input types.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.