The chips provide a high power density. Therefore, careful thermal management is a must. In order to ensure safe long term operation, the device should under normal conditions not heat up to more than 125°C. In worst case conditions, up to 150°C are safe but might trigger thermal switch off. In most applications, a standstill current reduction to less than 50% of the run current is sensible, because often holding torque requirements are relaxed due to mechanical friction. This will save a lot of energy. The automatic reduction reduces to about 30%.