na2121NA2121 Datasheet. 351Kb24P. Part #: ENA2121. Manufacturer: Sanyo Semicon Device. Description: PWM Current Control Hh-efficient Stepping Motor Driver. 1 Results.Joined January 2011. 0 Following · 0 Followers · Posts · Replies · Media. @na2121 hasn't posted. When they do, their posts will show up here.