If you need to control different motor-controlled systems, this h-bridge dc LMD18201T stepper motor driver, developed by Texas Instruments, can help you. In order to ensure parts aren"t damaged by bulk packaging, this product comes in tube packaging to add a little more protection by storing the loose parts in an outer tube. This motor controller has a minimum operating temperature of -40 °C and a maximum of 125 °C. This device has a minimum operating supply voltage of 12 V and a maximum of 55 V.