Datasheet Summary
3-Phase Brushless DC Motor Pre-Driver
Features
AND BENEFITS
- 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 (ET package)
Approximate Footprint
DESCRIPTION
The A4938 is a plete 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 mutation control, fixed off-time pulse width modulation (PWM)...