A3930 Datasheet - Allegro MicroSystems

A3930, Automotive 3-Phase BLDC Controller and MOSFET Driver

A3930 and A3931 Automotive 3-Phase BLDC Controller and MOSFET Driver .
The A3930 and A3931 are three-phase brushless DC (BLDC) motor controllers for use with N-channel external power MOSFETs.

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A3930_AllegroMicroSystems.pdf

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Datasheet Details

Part number:

A3930

Manufacturer:

Allegro MicroSystems

File Size:

948.21 KB

Description:

Automotive 3-Phase BLDC Controller and MOSFET Driver

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

Applications

* A key automotive requirement is functionality over a wide input supply range. A unique charge pump regulator provides adequate (>10 V) gate drive for battery voltages down to 7 V, and allows the device to operate with a reduced gate drive at battery voltages down to 5.5 V. Power dissipation in the

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A3930 Automotive 3-Phase BLDC Controller and MOSFET Driver Allegro MicroSystems

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