Stepper motor control max. 1 A, 10 - 30 VDC | UIM 24301

Subminiature Design − Size 25mm x 18mm x 3mm (L x W x H) − DIP18 land pattern, 15.24mm wide Motor Driver Features − 10 - 30VDC input voltage, Max 1A adjustable phase current − 8th micro-stepping − Dual full H-bridge with PWM constant current control Control Features − Embedded microcontroller − Self pulse generation, automatic run on power-up − Speed control through on-board trimmer, external potentiometer or, voltage input, 1 - 1000 RPM − Acceleration function − Switch control run/stop, direction, enable/shutdown − Automatic current reduction / power saving Description UIM24301 stepper motor controller is a microprocessor embedded, voltage control, miniature stepper motor controller. With the UIM24301, the motor speed can be controlled by an analog voltage in three optional ways: 1) the on-board trimmer, 2) an external potentiometer or, 3) an external voltage. Run/stop, direction, high/low speed range and, enable/disable can be controlled simply by shorting the corresponding terminal to the ground. UIM24301 controllers can run the motor without user control device. The microprocessor of the UIM24301 is capable to ramp up the current speed to the desired speed within 0.5 seconds, even when the speed control voltage is changing. This feature makes the sudden increase of the desired speed become possible.