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A1445 - Low-Voltage Full-Bridge Brushless DC Motor Driver

Download the A1445 datasheet PDF. This datasheet also covers the A1444 variant, as both devices belong to the same low-voltage full-bridge brushless dc motor driver family and are provided as variant models within a single manufacturer datasheet.

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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (A1444-Allegro.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
A1441 Low-Voltage Full-Bridge Brushless DC Motor Driver Allegro MicroSystems
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A1442 Low Voltage Full Bridge Brushless DC Motor Driver Allegro Microsystems
A1442 2SA1442 ETC
A1444 2SA1444 ETC

Other Datasheets by Allegro MicroSystems

Part Number Description
A1444 Low-Voltage Full-Bridge Brushless DC Motor Driver
A1454 3V Hall Effect Linear Sensor
A1469 Three-Wire True Zero-Speed Differential Peak-Detecting Sensor IC

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.

View original datasheet text
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.