MP6543GL-P

Overview

The MP6543GL-P is a three-phase brushless DC motor driver manufactured by Monolithic Power Systems. It integrates three half-bridge power stages driven by six N-channel MOSFETs, each with an on-resistance of 110mΩ. The device supports a supply voltage range of 3V to 12V and delivers up to 2A continuous output current per phase. Key features include independent ENABLE and PWM inputs for each half-bridge, an internal charge pump enabling 100% duty cycle operation, and automatic synchronous rectification. Protection mechanisms include overcurrent protection (OCP), undervoltage lockout (UVLO), and thermal shutdown.

Feature Summary

• Integrates three half-bridge drivers with independent enable and pulse-width modulation control inputs
• Includes internal charge pump circuitry to support high-side gate driving at full duty cycles
• Features integrated bidirectional current sampling amplifiers for precise motor control
• Provides comprehensive safety protections including overcurrent, undervoltage, and thermal shutdown

Applications

• Brushless DC motor control in consumer electronics
• Fan and pump drives in home appliances
• Industrial motion control systems requiring three-phase BLDC actuation
• Automotive subsystems utilizing low-voltage motor drivers

Procurement Notes

Verify the specific suffix GL-P against official Monolithic Power Systems documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with system voltage requirements within the 3V to 12V operating range. Confirm that the 2A continuous current rating aligns with thermal management capabilities of the target PCB layout. Cross-reference RoHS compliance status using current manufacturer declarations.

Selection Notes

Select this component when designing three-phase BLDC motor applications requiring integrated power stages and simple digital control interfaces. The MP6543GL-P is suitable for designs needing independent phase control via enable and PWM signals rather than Hall sensor or analog inputs. Consider the QFN-24 package for space-constrained layouts while ensuring adequate thermal dissipation for the 2A current capability.

Part Context

This part belongs to the MP6543 family of three-phase BLDC motor drivers from Monolithic Power Systems. The family includes variants such as MP6543A with separate high/low side inputs and MP6543B with Hall signal inputs. All variants share the core architecture of integrated half-bridges and protection circuits but differ in control interface configurations.

Replacement Considerations

MP6543CGL-P is listed as a parameter equivalent replacement for the discontinued MP6543CGL-Z variant within the same product family.