A4923 Description
Designed to control three-phase brushless DC motors, the A4923 is capable of high-current gate drive for an all N-channel power MOSFET 3-phase bridge. Sinusoidal current control is employed via output PWM, to minimize vibration, noise, and torque ripple. Internal circuit protection includes thermal shutdown with hysteresis, over-current, and dead-time protection.
A4923 Key Features
- Sinusoidal Drive Current
- Hall Element Inputs
- PWM Current Limiting
- Dead-time Protection
- FGO (Tach) Output
- Internal UVLO
- Thermal Shutdown Circuitry