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Monolithic Power Systems (MPS) MPQ6634-AEC1 Sensorless BLDC Motor Driver

Monolithic Power Systems (MPS) MPQ6634-AEC1 Sensorless BLDC Motor Driver is a 3-phase, sensorless brushless DC (BLDC) motor driver with integrated power MOSFETs. It features sensorless field-oriented control (FOC) for improved efficiency and low vibration, with up to 2A of peak current. The input voltage (VIN) ranges between 4.5V and 35V. The MPQ6634-AEC1 controls the motor speed through the pulse-width modulation (PWM) signal with a PWM input frequency between 50Hz and 20kHz. The device also supports DC input speed control.

The Monolithic Power Systems (MPS) MPQ6634-AEC1 provides rotational speed detection. The rotational speed detector (the FG/RD pin) is an open-drain output. In addition, the direction can be controlled via the DIR pin’s input. Rich protections include input over-voltage protection (OVP), under-voltage lockout (UVLO), locked-rotor protection, phase-loss protection (PLOS), over-current protection (OCP), and thermal shutdown (TSD). The MPQ6634-AEC1 is available in a wettable-flank TQFN-12 (3mm x 4mm) package. It is available in AEC-Q100 Grade 1.

Features

  • 4.5V to 35V operating input voltage (VIN) range
  • Up to a maximum of 2A of peak current
  • Sensorless Field-Oriented Control (FOC)
  • Integrated MOSFETs of high-side MOSFET (HS-FET) and low-side MOSFET (LS-FET) = 450mΩ
  • Supports 0VDC to 3.3VDC input or 50Hz to 20kHz Pulse-Width Modulation (PWM) input
  • Starting duty cycle set with hysteresis
  • Curve configurations
  • Configurable speed for open-loop and closed-loop control
  • Configurable soft-start time
  • Configurable alignment time
  • Direction control
  • Power-save mode
  • 24kHz PWM output frequency
  • Short-Circuit Protection (SCP)
  • Over-Voltage Protection (OVP)
  • Phase-Loss Protection (PLOS)
  • Locked-rotor protection
  • Selectable FG and RD outputs
  • Available in a TQFN-12 (3mm x 4mm) package with wettable flanks
  • Available in AEC-Q100 Grade 1

Applications

  • Automotive fans
  • Pumps
  • Air purifiers
  • General fans
  • Small-sized motors

Typical Application

Application Circuit Diagram - Monolithic Power Systems (MPS) MPQ6634-AEC1 Sensorless BLDC Motor Driver

Development Tool

Monolithic Power Systems (MPS) EVQ6634-LTE-00A Motor Driver Evaluation Board

Demonstrates the MPQ6634-AEC1, a 3-phase, sensorless brushless DC (BLDC) motor driver.

Learn MoreMonolithic Power Systems (MPS) EVQ6634-LTE-00A Motor Driver Evaluation Board について View ProductsMonolithic Power Systems (MPS) EVQ6634-LTE-00A Motor Driver Evaluation Board に関連
公開: 2025-07-18 | 更新済み: 2025-07-23