High reliability stepping motor drivers offer designers a wide product range with excellent performance features

ROHM Semiconductor high reliability stepping motor drivers (SMDs) offer designers a wide selection of products with the performance features required for printers and copiers, scanners, security cameras, robotics, sewing machines, factory automation and other applications requiring precision motor control. They are available now from Mouser. These SMDs are low-consumption driver ICs that are driven by PWM current. The ICs offered in the series have a rated power supply voltage range of 16V to 36V and a rated output current range of 700mA to 2.5A. CLK-IN driving mode is adopted for input interface. The standard stepping motors offer excitation modes of full step, half step, and quarter step. The drivers offer full step, half step, eight step, and sixteenth step modes. The ratio of fast decay and slow decay can be freely set without limitation, allowing the IC to adapt to the optimum control conditions for any motor. A built-in voltage regulator in most of the company’s SMDs eliminates the need for control sequencing during power on/off to prevent circuit malfunctions. Their SMDs also incorporate voltage, current, and thermal protection circuits for greater reliability and safety. Plus, their exclusive Ghost Supply Prevention function prevents aberrant operation in OFF mode. The company’s SMDs feature a single-power supply configuration, allowing for easy design and layout in the application. The series is offered in compact, heat-dissipating HTSSOP-B28 and HSOP-25 packages, simplifying thermal design.