Trinamic’s Newly Improved TMC4671 Servo Controller IC

The improved TMC4671-LA follows the TMC4671-ES, incorporating feedback from nearly 2 years of field testing by selected customers. The fully functional servo controller enables a wide range of powerful servo applications for efficient solutions.

Hamburg, May 4, 2020 – TRINAMIC Motion Control GmbH & Co. KG announces the fully optimized TMC4671-LA. After launching the world’s first fully integrated servo controller IC with field-oriented control for BLDC/PMSM and 2-phase stepper motors, as well as DC motors and voice coils, Trinamic kept working on the chip. Based on valuable input from market-leaders in e-mobility, medical devices, lab automation, robotics, factory automation, and designers of pumps and blowers, the integrated chip was carefully evaluated and improved.

The TMC4671-LA addresses these markets by embedding all necessary control loops in rugged, reliable state-machines. By offloading real-time critical tasks from the processor and software and implementing all control functions in hardware, the TMC4671 offers a crucial benefit: it takes care of all control functions itself.

“Trinamic is in a unique position by working with some of the biggest innovators around the world. Their biggest challenges gave us the idea to build the TMC4671 in the first place and hours of field-testing and careful evaluation by these companies gave us insights in how to improve the chip. With the improved dedicated servo controller IC, engineers can now easily overcome their biggest challenges and build a servo drive in a day since all control functions are integrated into this piece of smart silicon. Significantly reducing cost of ownership while offering best-in-class performance.” Explains Michael Randt, Founder and CEO of Trinamic.

Only a few lines of code are needed to develop a dynamic servo controller since all time-critical calculations are integrated in hardware. This not only offloads the processor of real time critical tasks, it also optimizes design cycles for a shorter time to market. Highly performant, efficient and dynamic, the TMC4671-LA offers the complete package with integrated ADCs, position sensor interfaces, and position interpolators.

Besides the improved servo control chip, Trinamic also introduces the open-source TMC4671+TMC6100-BOB. This development board features the dedicated TMC4671-LA servo controller IC and the universal high-voltage gate-driver TMC6100. Designed for rapid prototyping of applications, it allows Engineers to immediately check how the motor performs with Trinamic’s chips while tuning the application.

The TMC4671-LA is available from May through Trinamic’s sales partners. Fully integrated into Trinamic’s development environment, the TMC4671-EVAL can be combined with a 2A/24V power stage, 10A/70V power stage or TMC6100-EVAL for complete evaluation of the fully functional servo controller IC. Both the TMC4671-BOB and TMC4671+TMC6100-BOB are available as well to speed up the design-in process.

Features and benefits:

  • Servo controller with field-oriented control (FOC)
  • 3-phase PMSM/BLDC, 2-phase stepper motors, and single-phase DC motors
  • Torque control (FOC), velocity control, and position control
  • Integrated ∆Σ-ADC frontend
  • Encoder engine: Hall analog/digital, encoder analog/digital
  • Fast PWM engine (25kHz . . . 100kHz)
  • Application SPI + debug (UART, SPI)
  • Step-Direction Interface (S/D)

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