Monolithic Power Systems (MPS) MPQ6541/MPQ6541A-AEC1 Brushless DC Motor Drivers
Monolithic Power Systems (MPS) MPQ6541/MPQ6541A-AEC1 Three-Phase Brushless DC (BLDC) Motor Drivers feature integrated half-bridges consisting of six N-channel power MOSFETs. These motor drivers integrate two gate drive power supplies, three current-sense amplifiers, and six pre-drivers. The MPQ6541/MPQ6541A motor drivers integrate separate High-Side (HS) and Low-Side (LS) inputs. These MPQ6541/MPQ6541A-AEC1 motor drivers integrate ENBL and Pulse-Width Modulation (PWM) inputs for each half-bridge. The MPQ6541/MPQ6541A-AEC1 motor drivers use an internal charge pump to generate the gate drive supply voltage for the high-side MOSFETs and a trickle charge circuit. These motor drivers are available in AEC-Q100 grade 1.
The MPQ6541-AEC1/MPQ6541A-AEC1 motor drivers feature automatic synchronous rectification, thermal shutdown protection, Over-Current Protection (OCP), and Under-Voltage Lockout (UVLO). These MPQ6541-AEC1/MPQ6541A-AEC1 motor drivers operate at a 4.75V to 40V supply voltage range, 8A continuous output current, and 2MHz switching frequency. The MPQ6541-AEC1/MPQ6541A-AEC1 motor drivers are used in Permanent Magnet Synchronous Motors (PMSMs).
Features
- Three integrated half-bridge drivers
- MPQ6541-AEC1: PWM and ENBL inputs
- MPQ6541A-AEC1: HS and LS inputs
- Internal charge pump supports 100% duty cycle operation
- Automatic synchronous rectification
- Under-Voltage Lockout (UVLO) and Over Voltage Protection (OVP)
- Thermal shutdown protection
- Over-Current Protection (OCP)
- Integrated and bidirectional current-sense amplifiers
- Available in a TQFN-26 (6mm x 6mm) package with wettable flank
- Available in AEC-Q100 grade 1
Specifications
- 4.75V to 40V supply voltage range
- 8A continuous output current
- 2MHz switching frequency
- 5.84W continuous power dissipation
- -40°C to 125°C operating junction temperature range
- 4mA Quiescent current
Applications
- Brushless DC (BLDC) motor drivers
- Permanent Magnet Synchronous Motors (PMSMs)
Block Diagram
Application Circuit Diagram
Associated Product
Monolithic Power Systems (MPS) EVQ6541A-QK-00A Evaluation Board
Designed to demonstrate the capabilities of the MPQ6541A, three-phase Brushless DC motor drivers.