The STK5C4U332J-E is a fully-integrated inverter power stage consisting of a high-voltage driver, six IGBT’s and a thermistor, suitable for driving permanent magnet synchronous (PMSM) motors, brushless-DC (BLDC) motors and AC asynchronous motors. The IGBT’s are configured in a 3-phase bridge with separate emitter connections for the lower legs for maximum flexibility in the choice of control algorithm. The power stage has a full range of protection functions including crossconduction protection, external shutdown and under-voltage lockout functions. An internal comparator and reference connected to the overcurrent protection circuit allows the designer to set the over-current protection level.