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A1444 - Low-Voltage Full-Bridge Brushless DC Motor Driver

General Description

TheA1444 andA1445 are full-bridge motor drivers designed to drive low-voltage brushless DC (BLDC) motors in applications that require rotor speed control and fast rotor start-stop cycles.

Key Features

  • Low voltage operation: 1.8 to 4.2 V.
  • Externally controlled motor speed regulation.
  • Fast motor startup and braking function allows faster start-stop cycles.
  • Reverse voltage protection on the VDD and S¯¯L¯¯E¯¯E¯¯P pins.
  • Output short circuit and thermal shutdown protection.
  • Soft switching algorithm for reduced audible switching noise and EMI interference.
  • Unidirectional operating mode results in motor rotation in only one direction.
  • Chopper stabilization red.

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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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A1444 and A1445 Low-Voltage Full-Bridge Brushless DC Motor Driver with Hall Commutation, Externally Controlled Speed Regulation, Soft Switching, and Reverse Battery, Short Circuit, and Thermal Shutdown Protection Features and Benefits ▪ Low voltage operation: 1.8 to 4.