MP6541AGQKT-P

Overview

The MP6541AGQKT-P is a three-phase power stage for brushless DC motor control, rated for 40 V supply and 8 A output current. It integrates six N-channel power MOSFETs with 15 mΩ on-resistance per switch, pre-drivers, gate drive supplies, and bidirectional current sense amplifiers. Operating at a 2 MHz switching frequency, it supports PWM or HS/LS inputs and features internal charge pump for 100% duty cycle operation. The device includes UVLO, OVP, over-temperature, and over-current protection, housed in a TQFN-26 package.

Feature Summary

• Integrates high-side and low-side power MOSFETs with automatic synchronous rectification
• Supports 100% duty cycle operation via internal charge pump and trickle charging circuit
• Includes integrated bidirectional current sampling amplifiers for precise control
• Provides comprehensive protection against under-voltage, over-voltage, over-temperature, and over-current

Applications

• Brushless DC (BLDC) motor drives
• Automotive motion control systems
• Industrial servo motor applications

Procurement Notes

Verify the specific input configuration required for the design, as this variant utilizes High-Side and Low-Side logic inputs rather than PWM and Enable signals. Confirm that the TQFN-26 thermal pad soldering meets the manufacturer's reflow profile guidelines to ensure reliable heat dissipation during high-current operation.

Selection Notes

Select this component when an 8 A continuous current rating and 40 V voltage tolerance are required for three-phase BLDC applications. It is suitable for designs needing integrated power switches and current sensing without external discrete components. Ensure the system can accommodate the 2 MHz switching frequency and the specific HS/LS input logic requirements.

Part Context

This part belongs to the MPS MP6541 family of three-phase power stages designed for efficient motor control. It differs from the MPQ6541 series by lacking AEC-Q100 automotive qualification and utilizing different input control interfaces. The AG suffix indicates the specific HS/LS input configuration, distinguishing it from other variants in the product line.

Replacement Considerations

MP6541GQKT-P

FAQ

What type of input control does the MP6541AGQKT-P support?

It supports High-Side (HS) and Low-Side (LS) logic inputs, unlike the MPQ6541GQKTE-AEC1-P which uses PWM and ENBL inputs.

Does this device support 100% duty cycle operation?

Yes, it features an internal charge pump and a trickle charging circuit to maintain sufficient gate drive voltage for 100% duty cycle operation.