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18V, Single-Phase BLDC Motor Driver with Integrated Hall Sensor

18/03/2022

The MP6652 is a single-phase brushless DC (BLDC) motor driver with integrated power MOSFETs and a Hall-effect sensor. It drives a single-phase BLDC fan motor, with a 3V to 18V input voltage (VIN) range.

The device controls the rotational speed via the pulse-width modulation (PWM) signal on the PWM pin. It also features a built-in, configurable speed curve function that is ideal for cooling fan applications, which require flexible speed curve control.

The MP6652 provides rotational speed detection. The rotational speed detector (the FG/RD pin) is an open-drain output. It outputs a high or low voltage relative to the internal Hall comparator’s output. Higher speeds produce higher frequency signals.

Main Features

  • On-Chip Hall Sensor
  • Wide 3V to 18V Operating Input Voltage (VIN) Range
  • Integrated Power MOSFETs: Total 850mΩ High-Side MOSFET (HS-FET) and Low-Side MOSFET (LS-FET)
  • Configurable Starting Duty Cycle
  • Rotational Speed Indicator FG Signal
  • Locked Rotor Protection Fault Indication
  • 1kHz to 100kHz Pulse-Width Modulation (PWM) Input Frequency Range
  • 27kHz Fixed Output Switching Frequency (fSW)
Documents Tech question
MPS MP6652

18V, Single-Phase BLDC Motor Driver with Integrated Hall Sensor

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Documents

  • MPS MP6652 At a Glance Datasheet
Pexels thisisengineering 3913017

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