Rohm Semiconductor (www.rohm.com) is proud to announce the release of its new high-reliability, high-performance stepper motor drivers that offer selectable excitation modes, full-step to 16th-step with 1 A or 2.0 A output current and full-step to 8th-step with 2.5 A output current. The stepper motor drivers are now available in RS Components stocks (www.rs-components.com).

The microstep drivers allow designers to optimize vibration, noise and motor torque for a broad range of applications. The circuit design is simplified by combining the features of an internal voltage regulator, DMOS output and control input translator. Operating from a maximum single 36 V supply, Rohm advanced DMOS (Pch + Nch) output topology does away with the need for external charge pump components.

The stepper motor drivers incorporate over-voltage, thermal protection and under-voltage not typically integrated in motor driver ICs. The drivers’ packaging benefits include a bottom-side heat sinking to simplify thermal design, pin-compatibility within parts with different current ratings, as well as adjacent-pin short protection on most of the models to reduce field and production failures, said the company.