ATA6847 Brushless Motor Gate Driver SBCs

Microchip Technology ATA6847 Three-Phase Brushless Motor Gate Driver System Basis Chips (SBCs) are designed for brushless motor control, utilizing advanced SOI technology. The SBC forms a brushless DC motor control unit by combining a microcontroller and six discrete power MOSFETs. Using six dedicated parallel inputs, the gate driver units (GDUs) can be managed independently, supporting duty cycle operations from 0% to 100%, due to the performance of two charge pumps, for low and high-side gate drives. Additionally, the circuit supplies 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 handles the Microchip ATA6847 SBCs by utilizing an SPI interface.