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A4938 Datasheet - Allegro

A4938 3-Phase Brushless DC Motor Pre-Driver

The A4938 is a complete 3-phase brushless DC (BLDC) motor pre-driver, supplying direct, high-current gate drive of an all N-channel power MOSFET 3-phase bridge. The device has three Hall-element inputs, a sequencer for commutation control, fixed off-time pulse width modulation (PWM) current control,.

A4938 Features

* ▪ Drives 6 N-channel MOSFETs ▪ Synchronous rectification for low power dissipation ▪ Internal UVLO and thermal shutdown circuitry ▪ Hall element inputs ▪ PWM current limiting ▪ Dead time protection ▪ FG outputs ▪ Standby mode ▪ Lock detect protection ▪ Overvoltage protection PACKAGE: 28-contact QFN

A4938 Datasheet (622.43 KB)

Preview of A4938 PDF

Datasheet Details

Part number:

A4938

Manufacturer:

Allegro

File Size:

622.43 KB

Description:

3-phase brushless dc motor pre-driver.

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A4938 3-Phase Brushless Motor Pre-Driver Allegro

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