Part number:
A4938
Manufacturer:
Allegro
File Size:
622.43 KB
Description:
3-phase brushless dc motor pre-driver.
Datasheet Details
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
Datasheet Details
A4938
Allegro
622.43 KB
3-phase brushless dc motor pre-driver.
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