RAA227063

RAA227063 4.5V to 60V 3-Phase Smart Gate Driver Datasheet The RAA227063 is a smart gate driver IC for 3-phase Brushless DC (BLDC) motor applications. It integrates three half-bridge smart gate drivers that are capable of driving up to three N-channel MOSFET bridges and supports bridge voltages from 4.5V to 60V. Each gate driver supports up to 1A source and 2A sink peak drive current with programmable drive strength control. Adjustable and adaptive dead-times are implemented to ensure robustness and flexibility. The active gate holding mechanism prevents a Miller effect-induced cross-conduction and further enhances robustness. The device integrates power supplies that power internal analog and logic circuitry, high-side and low-side drivers, and a dedicated supply for powering external microcontrollers. The device also features a low-power Sleep mode that consumes only 20µA to maximize battery life in portable applications. The driver control inputs can be configured to either 3-phase LI/HI or 3-phase PWM modes. Three accurate differential amplifiers with adjustable gain are integrated to support ground-side shunt current sensing or low-side rDS(ON) current sensing for each bridge. The device can also support sensorless operation using back EMF in brushless DC motors. The device can be configured to use either a hardware interface or SPI interface. For hardware interface configuration, key driver operating parameters can be set using resistor pin-straps. For SPI configuratio...