Integrated stepper motion control IC outputs 50V, 2A

November 05, 2014 // By Graham Prophet
Trinamic Motion Control’s TMC5130 single-axis stepper motor control IC, with integrated MOSFET motor drive, delivers the highest voltage and current specs in the company’s integrated stepper control and driver product line.

The IC new delivers 50V/2A (peak) motor drive power, which is suitable for driving motors from NEMA 11 to NEMA 23. The new device also implements Trinamic's latest technology for quiet, vibration-free operation.

The company says this is a new maximum for motor voltage and current specs in a monolithic motion controller with integrated MOSFET drivers... with ease-of-use and cost efficiency; the integrated circuit enables superior control of stepper motors for any application, relieving designers of the need for specific motor control know-how.

The TMC5130 is suitable for laboratory, office automation and other applications where machinery works in close proximity to human operators. These environments often require strict noise limitations, so the new device is the first to incorporate Trinamic’s patented stealthChop technology, which reduces noise and vibration at high torque and low velocity. Consequently, Trinamic’s new TMC5130 has a measured noise level 10 dB below traditional stepper motor drive ICs when using stealthChop.

Connected to a host microcontroller through an industry standard SPI or step/direction interface, the TMC5130 performs all real-time position and velocity stepper motion calculations, while its integrated low-power MOSFET directly drives stepper motor coil currents. It implements Trinamic’s sixPoint jolt-minimising ramp generation profile. This profile uses two different settings during both the acceleration and deceleration phases, which minimises motion 'jerk’ and delivers smoother motor operation. The sixPoint ramp profile also enables motor torque to be more closely matched to an application’s requirement, producing velocity-optimised maximum acceleration times.

Application development, prototyping, design optimisation and time-to-market are assisted with Trinamic’s PC-based software development kit and TMC5130 evaluation board.

In a QFP48 (7 x 7 mm) package, the device is priced at $2.66 (1,000).