RAA227063 Smart Gate Driver for Motor Control

Renesas' RAA227063 is a high-precision, high-efficiency smart three-phase MOSFET driver that simplifies BLDC motor design by driving a variety of motor configurations and control algorithms without making hardware changes. It pairs easily with any MCU so users can scale the MCU to their application requirements. Integrated analog power components save board space, lower BOM costs, and allow for easy tuning.

RAA227063 is the first device to include the self-aligned dead time generator and slew rate control to improve overall power efficiency. It integrates three half-bridge smart gate drivers that can drive up to three N-channel MOSFET bridges and supports bridge voltages from 4.5 V to 60 V. Each gate driver supports up to 1 A source and 2 A sink peak drive current with programmable drive strength control. Adjustable and adaptive dead-times ensure robustness and flexibility.

This smart 3-phase gate driver is designed to complement Renesas and other suppliers' general purpose MCUs, as well as motor control-specific MCUs such as the RA6T2. It reduces the complexity of the inverter design by integrating all the analog components in one device. With the integrated gain amplifiers and sample and hold, designers can use the ADC for rotor detection in sensorless motor drive applications.