Does Trinamic have any parts that can operate a sensorless BLDC (Brushless DC) motor?
Controlling BLDC motion typically requires some sort of feedback mechanism, typically an encoder or a hall sensor. However, simple velocity control can be done by monitoring the motor's backEMF.
Trinamic has a couple board level products (modules, aka TMCMs) that are capable of running a BLDC in velocity mode without any feedback mechanisms.
The TMCM-1640 and TMCM-1630 have an operation mode called "FOC Control Mode". This is an open loop velocity control mode The on-board microcontroller contains firmware which performs all of the necessary calculations to successfully control a sensorless BLDC.
In order to get this operational, you'll need to set the device to this mode (Axis parameter 159), set a maximum run current, and then set the velocity you wish to run your motor. The onboard MCU will handle the velocity control algorithm.
None of Trinamic's IC level products are capable of sensorless BLDC operation.