Richtek RT7084C2M: Three-Phase PMSM/BLDC Motor Controller with Pre-Driver Datasheet

The Richtek RT7084C2M is a highly integrated, application-specific integrated circuit (ASIC) designed for controlling Permanent Magnet Synchronous Motors (PMSM) and Brushless DC (BLDC) motors. This advanced solution combines a 3-phase motor controller, a 3-phase gate driver, bootstrap diodes, a 5V LDO, and a buck converter into a single chip.

At its core, the RT7084C2M features an ARM 32-bit Cortex-M0 processor, enabling sophisticated sensorless Field Oriented Control (FOC). It also includes essential system-level peripherals such as ADC input filters, communication interfaces (I2C, UART), a thermal sensor, and protection features like short-circuit and locked-rotor detection, all contributing to reduced component count, smaller PCB size, and lower system costs.

Key features include:

Integrated 3-Phase PMSM/BLDC Controller and Gate Driver
Sensorless Field Oriented Control (FOC)
ARM Cortex-M0 Core
Wide Input Voltage Range (16V to 80V)
Integrated LDO and Buck Converter
Comprehensive Protection Features (SCP, UVLO, Thermal)
Support for Server Fans, Telecom Fans, and Liquid Pumps

For detailed specifications, electrical characteristics, and application circuits, please refer to the full datasheet. Learn more at Richtek.com.

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Richtek RT7084C2M: Three-Phase Motor Controller IC

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