This document describes the function and features of SLA7080M series, which are unipolar 2-phase stepping motor driver ICs. Four levels of output current are available from the incorporated MOSFETs, corresponding to the rated output current ratings. All current ratings are available with protection against motor coil shorts or motor open wire detection.
The SLA7080M series has a multichip structure, for enhanced thermal dispersion. The Control IC (MIC), four power elements (MOSFET), and dual sense resistors, are all separate ICs.
Built-in sense resistors for each phase allow accurate tracking of performance without additional external components. Low-power sleep mode as well as reduced power during PWM off-time maximize energy savings.