MPQ6541GQKTE-AEC1-Z

Overview

The MPQ6541GQKTE-AEC1-Z is a three-phase brushless DC motor driver from Monolithic Power Systems, designed for automotive applications with AEC-Q100 Grade 1 qualification. It integrates three half-bridges comprising six N-channel power MOSFETs, pre-drivers, gate drivers, and current sense amplifiers. The device operates within a supply voltage range of 4.75V to 40V, delivering an 8A continuous output current or 12A peak current for one second. Key electrical parameters include a 2MHz switching frequency, 15mΩ MOSFET on-resistance, and 4mA quiescent current. It utilizes a TQFN-26 (6mm x 6mm) package with wettable flanks and supports operation temperatures from -40°C to +125°C.

Feature Summary

• Integrates three half-bridges with independent high-side and low-side inputs for flexible control configurations
• Supports 100% duty cycle operation through internal charge pump and trickle charging circuitry
• Includes automatic synchronous rectification for enhanced efficiency in BLDC motor drives
• Features integrated safety protections including over-current protection, under-voltage lockout, and thermal shutdown

Applications

• Automotive LiDAR systems requiring qualified motor drivers
• Three-phase brushless DC motor control in automotive environments
• Motion control applications demanding high reliability and compact packaging

Procurement Notes

Verify the specific suffix 'AEC1' confirms AEC-Q100 Grade 1 automotive qualification status. Ensure the ordering part number matches the required input configuration, as variants exist with different interface options. Confirm package details align with PCB footprint requirements for the TQFN-26 form factor. Check manufacturer documentation for moisture sensitivity level handling instructions prior to assembly.

Selection Notes

Select this component when an automotive-grade, three-phase BLDC driver with integrated power stages is required. It is suitable for designs needing independent HS/LS inputs rather than combined PWM/ENBL signals. Consider the 40V maximum supply voltage and 8A continuous current limits against load requirements. Evaluate thermal performance based on the specified 5.84W power dissipation capability within the TQFN-26 package constraints.

Part Context

This device belongs to the MPQ6541 family of automotive motor drivers. It serves as the variant with independent high-side and low-side inputs, distinct from the MPQ6541-AEC1 which features integrated enable and PWM inputs. Both share identical core electrical specifications and safety features but differ in control interface architecture. The family targets robust automotive motion control solutions.

Replacement Considerations

MPQ6541AGQKTE-AEC1-Z shares identical electrical characteristics and pinout but offers independent HS/LS inputs instead of integrated PWM/ENBL signals found in other variants.