Monolithic Power Systems (MPS, NASDAQ: MPWR) has recently launched the MPQ6539-AEC1, a gate driver IC specifically designed for three-phase brushless DC (BLDC) motor drives. With an input voltage of up to 80V, this automotive-grade device can drive three half-bridges composed of six N-channel power MOSFETs, making it ideal for automotive body motor control applications such as car pumps, electric liftgates, sunroofs, and power seat adjustments.
Flexible Configuration Options
In addition to three-phase BLDC motor drives, the MPQ6539-AEC1 can drive a single H-bridge with four N-channel MOSFETs. For more complex setups, two MPQ6539-AEC1 devices can be cascaded to drive three H-bridges (12 N-channel MOSFETs), meeting the drive requirements of three brushed DC (BDC) motors.
Core Advantages of MPQ6539-AEC1
- Wide Voltage Compatibility: Supports an 8V to 80V input range, fully compatible with 12V, 24V, and 48V automotive electrical architectures, adapting to evolving new energy vehicle power systems.
- Customizable Protection: Allows adjustment of dead time (DT) via external resistors and configuration of overcurrent protection thresholds for external MOSFETs, enhancing design flexibility and reliability in automotive motor applications.
- Integrated Efficiency: Features a built-in current-sense amplifier and charge pump supporting 100% duty cycle. Its compact QFN (4mm x 5mm) package significantly reduces PCB space and external component count, lowering BOM costs.
MPS Automotive-Grade Gate Driver Portfolio
MPS offers a range of solutions for automotive BLDC gate driver applications, facilitating the transition from 12V to 48V automotive systems:
| Part Number | VIN Range (V) | VSW (Max) (V) | Number of Half-bridges | ISINK/SOURCE (A) | Input Control Logic | Current-Sense Amp | Package |
|---|---|---|---|---|---|---|---|
| MPQ6539 | 8 - 80 | 80 | 3 | 1/0.8 | HSx & LSx | Integrated (1 Channel) | QFN-28 (4x5) WF |
| MPQ6533 | 6 - 40 | 40 | 3 | 1/1 | SPI | Integrated (1 Channel) | QFN-32 (5x5) WF |
| MPQ6532 | 5 - 60 | 60 | 3 | 1/0.8 | PWM & DIR; 3x Hall Inputs | External | QFN-28 (4x5) WF |
| MPQ6531 | 5 - 60 | 60 | 3 | 1/0.8 | HSx & LSx | External | QFN-28 (4x5) WF |
| MPQ6530 | 5 - 60 | 60 | 3 | 1/0.8 | PWMx & Enx | External | QFN-28 (4x5) WF |
| MPQ1923 | 5 - 17 | 100 | 1 | 8/7 | INH & INL | External | QFN-10 (4x4) |
| MPQ1922 | 5 - 15 | 100 | 1 | 4/3 | ENBL & INH & INL | Integrated (1 Channel) | QFN-22 (4x5) WF |
Key Features of MPQ6539-AEC1
- 8V to 80V wide input voltage range
- 100V maximum bootstrap (BST) voltage
- 0.8A/1A sink/source current (drive current)
- Internal LDO to drive external NPN transistors for high-current applications
- Low-power sleep mode with current as low as 10uA
- Integrated current-sense amplifier
- Independent control interfaces for high-side and low-side switches in each half-bridge
- Comprehensive protection: adjustable dead time, configurable overcurrent protection, overtemperature protection, undervoltage lockout, and fault reporting
- Compact QFN-28 (4mmx5mm) package with wettable flanks
- AEC-Q100 automotive certification
Purchase and Technical Support
The MPQ6539-AEC1 and its evaluation board (EVQ6539-V-00A) are available directly from the MPS website. For more details and technical resources, visit https://www.monolithicpower.cn/contact_npi.
About MPS
Monolithic Power Systems (MPS) is a global leader in semiconductor solutions, specializing in high-performance, chip-based power products. Founded in 1997 by CEO Michael Hsing, MPS aims to reduce energy and material consumption while improving quality of life. Leveraging system-level expertise, advanced semiconductor design, and proprietary integration technologies, MPS delivers reliable, compact solutions that enhance energy efficiency and cost-effectiveness, driving sustained value for customers and shareholders.
