Renesas — RA6T2 Motor Control MCUs
Renesas

Renesas RA6T2 Motor Control MCUs

New MCUs enable high-performance motor control with a reduced BoM

Renesas has released the RA6T2 Group microcontrollers, which feature a rich set of peripheral functions and a hardware accelerator specifically for motor and inverter control.

 

Based on a 240 MHz Arm® Cortex®-M33 core, the new RA6T2 32-bit MCUs integrate peripherals optimized for precise motor control, helping to reduce bill-of-materials cost while boosting performance. These include two independent ADCs which offer a maximum speed of 0.16 µs. They also include a simultaneous sample-and-hold function for three channels to detect the three-phase current of a motor.

 

Integrated analog provision includes amplifiers which can set the gain according to the input-voltage range, and comparators which detect abnormal voltage input and over-current. In addition, the adjustable PWM timer makes it easy to port existing algorithms. The RA6T2 MCUs also provide, alongside other analog functions, a PWM output cut-off safety function.

 

The extensive provision of motor-control peripherals means that a single RA6T2 MCU can simultaneously control two brushless DC (BLDC) motors.

 

The embedded hardware accelerator includes both a trigonometric function unit (TFU) and an infinite impulse response (IIR) filter. The TFU performs high-speed calculations without the need for look-up tables, enabling effective use of ROM. The IIR filter provides coefficient setting methods which ease porting from existing algorithms.

 

Renesas also supplies a BLDC traction motor control reference design based on an RA6T2 MCU and including the Renesas RAA227063 smart gate driver for motor-control systems.

Features

  • Supported by Renesas Flexible Software Package
  • Memory protection unit
  • Error correction code in SRAM
  • ADC self-test
  • 10-channel general-purpose timer
  • Two-channel asynchronous timer
  • Watchdog timer
  • CAN FD interface
  • Two I2C interfaces
  • Six serial communications interfaces
  • Two serial peripheral interfaces
  • Operating-temperature range: -40°C to 105°C

Applications

  • Home appliances
  • Induction heating
  • Power tools
  • Industrial motors
  • AC drives
  • AC servo motors
  • Robotics
  • Heating, ventilation and air conditioning

Development Kit

Kit Part Number: RTK0EMA270S00020BJ

The MCK-RA6T2 development kit includes a CPU board, an inverter board, and a Motor Work Bench GUI tool with real-time debugging and digital oscilloscope functionality.

Renesas — RA6T2 Motor Control MCUs

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For more information on the
Renesas RA Series Microcontrollers

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