MP6540AGU-P

Overview

The MP6540AGU-P is a three-phase brushless DC motor driver integrating three half-bridges with six N-channel power MOSFETs. It operates on a supply voltage range of 5.5V to 35V, delivering 3A continuous output current and up to 10A peak current. The device features separate high-side and low-side inputs for precise control. Internal circuitry includes an integrated charge pump for gate drive support, bidirectional current sense amplifiers, and automatic synchronous rectification. Key protection mechanisms encompass over-current protection (OCP), under-voltage lockout (UVLO), and thermal shutdown. It is housed in a QFN-26 package.

Feature Summary

• Integrates three half-bridge drivers with internal N-channel MOSFETs and gate drive supplies
• Supports 100% duty cycle operation via internal charge pump and trickle charge circuit
• Includes integrated bidirectional current sense amplifiers for feedback
• Provides comprehensive safety features including OCP, UVLO, and thermal shutdown

Applications

• Brushless DC motor control systems
• Three-phase motor drive applications
• Industrial motion control equipment
• Automotive ignition or motor driver circuits

Procurement Notes

Verify the specific suffix 'P' against the manufacturer's official documentation to confirm packaging configuration and RoHS compliance status. Ensure that the design utilizes the correct input interface, as the AGU variant specifies separate high-side and low-side inputs rather than PWM/Enable inputs found in other variants. Confirm thermal management requirements align with the specified power dissipation limits for the target PCB layout.

Selection Notes

Select this component when separate high-side and low-side logic inputs are required for the control scheme. The 3A continuous current rating suits moderate load applications, while the 10A peak capability handles startup transients. Consider the QFN-26 package for space-constrained designs requiring efficient heat dissipation. Verify that the system voltage remains within the 5.5V to 35V operating range to ensure proper functionality of the internal regulators and gate drivers.

Part Context

This part belongs to the MP6540 family of three-phase BLDC motor drivers from Monolithic Power Systems. The MP6540AGU-P is functionally identical to the standard MP6540 but distinguishes itself by utilizing separate high-side and low-side inputs instead of combined PWM and Enable signals. This variation offers flexibility in control logic implementation for designers preferring distinct signal paths for phase switching.

Replacement Considerations

MP6540GU-P