A SoC that integrates the main functions of motor control onto a single chip.

■ Typical specifications 

• Ultra-compact servo driveSoC 

-Drives 36V BLDC and DC motors 

-Supports continuous current of up to 3 ARMS 

- Maximumcurrent sensing capability of 5AFS 

• Wide operating temperature range:-40°C to 125°C 

• High-performance motion control 

Hardware-based vector control (FOC) 

-Control loop and PWM engine with a maximum frequency of 200kHz 

- Built-in8-point lamp controller 

• Flexible feedback engine
((ABN, SinCos, Digital/Analog Hall, SPI encoder) 

• Integrated power stage and signal circuit 

36V Half-Bridge x 3 (55mΩ/FET)

• Integrated, scalable, lossless current detection

• Short-circuit protection and overheat protection

Hardware-based vector control (FOC)

FOC (Field-on-Core) drive requires complex calculations because it controls the motor while providing real-time feedback on its current and rotational state. Conventional software-based FOC control requires significant effort to develop and adjust control algorithms, and in applications controlling multiple axes, such as robot arms,high-performance processors such as DSPs (Digital Signal Processors) were sometimes necessary. 

The TMC6460 incorporates FOC control functionality as hardware, significantly reducing the computational load on the host MCU. Furthermore, its support for torque, speed, and position control alleviates the burden of implementing complex motor control algorithms on the host MCU, enabling advanced motor control with a simple software configuration centered on register settings via SPI communication. 

Also,Not only the FOC controller, but also the current sensing circuit and gate driver.The motor, power stage, and feedback engine are all integrated onto a single chip. This reduces the need for external components and peripheral circuits, contributing to a smaller board area and a more compact overall motor drive system.

In conventional software-basedFOC control, changes in motor specifications or control conditions often required software modification or re-verification. The TMC6460 reduces the software development burden on the host MCU by centralizing the main motor control processing in hardware, thereby improving the efficiency of product development. 

Embedded 8-point lamp controller

The TMC6460 incorporates an 8-point ramp controller that generates motion profiles,allowing for easy configuration of motor operation based on speed and position. Smooth acceleration and deceleration control suppresses mechanical shocks and vibrations caused by sudden speed changes. Furthermore, because motion control is performed in hardware, it reduces the software processing load on the host MCU and development time.

Control loop and PWM engine with a maximum frequency of 200kHz

Supporting high-speed control loops up to 200kHz and PWM engines, it enables rapid control and updating of motor current. This reduces response time to load fluctuations and sudden operation commands, improving torque tracking speed and position stability. It also contributes to reducing the risk of overcurrent through high-speed current control and to supporting low-inductance (low-L) motors with small electrical time constants. 

Integrated the main functions necessary for motor control.

The main functions required for motor drive, such as the control circuit, current sensing circuit, gate driver, and power stage necessary for FOC control, are integrated onto a single chip. This reduces the need for external components and peripheral circuits, resulting in a smaller board area, reduced design time, and a more compact overall motor control system. 

By using the TMC6460, the size can be reduced to 1/6 and the number of parts to 1/9!

Application example

The TMC6460 is an idealproduct for applications requiring high-precision positioning and high-speed acceleration.

• Robots and FA systems
• CCTV
• SMT mounting machine
• Photographic gimbal
• Infusion pumps and syringe pumps
• BLDC/PMSM and DC servo motors

TMC6460 Evaluation Board

We offer an evaluation board that allows you to actually evaluate the operation and various motor control functions of the TMC6460. You can use the actual device to check FOC control, motor responsiveness, and various parameter settings, allowing you to immediately experience the product's features and performance.

By utilizing the evaluation board,you can smoothly proceed with considering the introduction of the TMC6460 and developing motor control systems. 

This time,we introduced the ADI Trinamic™ TMC6460 motor driver, which enables high-speed, high-precision FOC control of BLDC motors and miniaturization of motor drive circuits. 

The TMC6460 supports control loops and PWM engines up to 200kHz, contributing to improved responsiveness, torque tracking, and positional stability through high-speed current control. Furthermore, by integrating key functions necessary for motor drive—from the FOC control circuit to the current sensing circuit, gate driver, and power stage—on a single chip, it reduces the number of external components and enables system miniaturization. It is a suitable solution for next-generation robots and industrial equipment, including humanoid robots, that require high-speed response, high-precision motor control, and space-saving design. 

If you think this could be useful for your own application, why not start with an evaluation? 

Please feel free to contact us. 

Click here for manufacturer site/other related sites

• TMC6460 (Various datasheets can be downloaded from here)
• How do you get the most precise control over a BLDC motor?
• "ADI Trinamic™ Series" makes it easy to develop ultra-quiet and smooth motors
• Smartly update your solenoid control. ADI Trinamic™ solenoid drivers
• ADI Trinamic Support | Analog Devices

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