DESCRIPTION

· The RAJ306102 is a general-purpose motor control IC designed for 3-phase brushless DC (BLDC) motor applications. · It integrates a smart gate driver and MCU (RL78/G1F) in a single package. · The smart gate driver includes three half-bridge gate drivers, a buck switching regulator, a charge pump, two LDOs, three differential amplifiers, a BEMF sense amplifier, three comparators, and extensive protection functions. · It supports bridge voltages from 6V to 65V and offers adjustable drive strength control. · The device supports both sensor and sensorless BLDC motor drive and includes robust protection mechanisms. · Configuration and monitoring are facilitated via an SPI interface.

FEATURES

· Operating power supply voltage: VBRIDGE (6V to 65V), VM (6V to 60V). · Operating ambient temperature: -40°C to 105°C. · Smart gate driver features: 3-phase drive, adaptive dead time, 0.64A/1.28A peak source/sink current, and configurable gain differential amplifiers. · Integrated power supply architecture: Two 5V LDOs, 500mA buck regulator, and 100mA adjustable LDO. · MCU features: 16-bit CISC CPU, 64KB code flash, 5.5KB RAM, and multiple serial communication interfaces. · Extensive protection functions: OV/UV protection, thermal warning, and shutdown.

APPLICATIONS

· Power tools and garden tools. · Vacuum cleaners, fans, pumps, and robotics.