ATA6847

The ATA6847 is a Three-Phase Brushless Motor Gate Driver System Basis Chip (SBC) for brushless motor control, designed using advanced SOI technology. It is designed to provide a high level of integration and meet the rigorous demands of modern automotive, industrial and consumer environments. Through six dedicated parallel inputs, the gate driver units (GDU) can be controlled independently, supporting duty cycle operations from 0% to 100%, due to the implementation of two charge pumps, for low and high-side gate drives. In addition, the circuit provides 5V and 3.3V low dropout voltage regulators, two current-sensing operational amplifiers, an integrated Back-EMF detection module and a window watchdog. The microcontroller controls the ATA6847 using an SPI interface. In combination with a microcontroller and six discrete power MOSFETs, the SBC forms a brushless DC motor control unit for motor control applications.