This 3-phase FSB50550AT stepper motor driver from Fairchild Semiconductor is built to automate a variety of different machines, such as pumps and actuators. Its typical operating supply voltage is 15 V. This product comes in rail packaging to keep individual parts separated and protected. This motor controller has an operating temperature range of -40 °C to 150 °C. This device has a typical operating supply voltage of 15 V. Its minimum operating supply voltage of 13.5 V, while its maximum is 16.5 V.