Datasheet4U Logo Datasheet4U.com

A3931 - Automotive 3-Phase BLDC Controller and MOSFET Driver

Download the A3931 datasheet PDF. This datasheet also covers the A3930 variant, as both devices belong to the same automotive 3-phase bldc controller and mosfet driver family and are provided as variant models within a single manufacturer datasheet.

General Description

The A3930 and A3931 are three-phase brushless DC (BLDC) motor controllers for use with N-channel external power MOSFETs.

They incorporate much of the circuitry required to design a cost-effective three-phase motor drive system and have been specifically designed for automotive applications.

Key Features

  • High current three-phase gate drive for N-channel MOSFETs.
  • Synchronous rectification.
  • Cross-conduction protection.
  • Charge pump and top-off charge pump for 100% PWM.
  • Integrated commutation decoder logic.
  • Operation over 5.5 to 50 V supply voltage range.
  • Extensive diagnostics output.
  • Provides +5 V Hall sensor power.
  • Low-current sleep mode.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (A3930_AllegroMicroSystems.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
A3935 3-Phase Power MOSFET Controller Allegro
A393F DUAL COMPARATOR KEC
A39 10 TO 2000 MHz CASCADABLE AMPLIFIER Tyco Electronics
A390 SILICON RECTIFIER Powerex Power Semiconductors
A3901 Dual Full Bridge Low Voltage Motor Driver Allegro

Other Datasheets by Allegro MicroSystems

Part Number Description
A3930 Automotive 3-Phase BLDC Controller and MOSFET Driver
A3932 Three-Phase Power MOSFET Controller
A3933 THREE-PHASE POWER MOSFET CONTROLLER
A3938 Three-Phase Power MOSFET Controller
A3904 Low Voltage Voice Coil Motor Driver

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
A3930 and A3931 Automotive 3-Phase BLDC Controller and MOSFET Driver FEATURES AND BENEFITS ▪ High current three-phase gate drive for N-channel MOSFETs ▪ Synchronous rectification ▪ Cross-conduction protection ▪ Charge pump and top-off charge pump for 100% PWM ▪ Integrated commutation decoder logic ▪ Operation over 5.5 to 50 V supply voltage range ▪ Extensive diagnostics output ▪ Provides +5 V Hall sensor power ▪ Low-current sleep mode PACKAGE: 48-Lead LQFP with exposed thermal pad (suffix JP) Not to scale DESCRIPTION The A3930 and A3931 are three-phase brushless DC (BLDC) motor controllers for use with N-channel external power MOSFETs.