Stepper motors are brushless DC motors that are capable of turning to any step in the 360 degree rotation of the motor. The precision of the motor position is associated with the number of steps available. The motor is turned to any particular step position by controlling the magnetics in such a way that they line up with the particular division on the stator. These motors are designed specifically to be operated in started and stopped positions with defined angular positions associated with them. Many analog positioning applications like gauge movement, leveling, and flap opening control have been “digitized” with the use of stepper motors. If the user needs a particular X-Y position or wants to level headlamps, or stage lighting, to a particular location, stepper motors are the key. Battery powered, portable, or remote control robotics use stepper motors. Also, many of the gauges in modern vehicle dashboards are controlled by stepper motors. Like brushless DC motors the magnetic field polarity changes required to drive and timing controlled externally and require a more complicated control interface to control torque, speed, and position. Stepper motor control ICs from ST provide state of the art architectures and interface to ensure the control and accuracy needed for most single- or multi-stepper motor applications.