ATA6847L

The ATA6847L is a Three-Phase Brushless Motor Gate Driver System Basis Chip (SBC) for brushless motor control, designed using advanced SOI technology. It is AEC-Q100, Grade 0, automotive-qualified and provides Functional Safety support. It is engineered to provide high level of integration to meet the rigorous demands of modern automotive environments. The ATA6847L variant stands out with an integrated LIN transceiver, reducing Bill of Materials (BOM) and PCB space. 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, three current-sensing operational amplifiers, an integrated Back-EMF detection module and a window watchdog. The microcontroller controls the ATA6847L 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.