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MP6652A - Single-Phase BLDC Fan Driver

General Description

The MP6652A is a single-phase brushless DC (BLDC) fan driver with integrated power MOSFETs and a Hall-effect sensor.

It supports up to 1A of peak current across a wide 3V to 18V input voltage (VIN) range.

The fan speed is controlled by a pulse-width modulation (PWM) signal applied on the PWM pin.

Key Features

  • On-Chip Hall Sensor.
  • Wide 3V to 18V Operating Input Voltage (VIN) Range.
  • Up to 1A Peak Current Limit.
  • Integrated Power MOSFETs: Total 850mΩ for High-Side MOSFET (HS-FET) and LowSide MOSFET (LS-FET).
  • Configurable Speed Curve.
  • 1kHz to 100kHz PWM Input Frequency Range.
  • Soft-On/Off Phase Commutation.
  • Configurable Output Indictation on FG/RD: o Rotational Speed Indicator (FG) o Locked Rotor Protection Fault (RD).
  • Fixed 27kHz Output Switching Frequency (fS.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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MP6652A 18V, Single-Phase BLDC Fan Driver with Embeded Hall Sensor and MOSFETs DESCRIPTION The MP6652A is a single-phase brushless DC (BLDC) fan driver with integrated power MOSFETs and a Hall-effect sensor. It supports up to 1A of peak current across a wide 3V to 18V input voltage (VIN) range. The fan speed is controlled by a pulse-width modulation (PWM) signal applied on the PWM pin. The MP6652A’s configurable speed curve makes this device well-suited for cooling fan applications that require flexible speed curve control. The FG/RD pin is an open-drain output that can be configured for speed detection (FG) or locked rotor protection (RD). The FG/RD pin must be pulled up externally. Rich protections are implemented for robust operation.