MC33035 schematic block diagram and three-phase full-wave brushless DC motor open-loop speed control wiring diagram

MC33034 and MC33035 have the same functions. In order to adapt to the different
phase differences between the phase sensors of different brushless DC motors, two different specifications of products are provided
; MC33034 P60 is suitable for a phase difference of 60. or 300. , MC33034P120 is suitable
for phase difference of 120a or 2404. Pin 15 of MC33034 is the ground of the control part, and its current
detection comparator box phase input terminal is not lead out. 22 feet are empty feet. MC33033 is a lower-priced brushless DC motor controller
  that omits some functions of MC33035 . It is a 20-pin plastic package. It combines vcc and Ve power supplies into one pin, with brake input and fault signal output. The inverting input end of the current detection comparator is not lead out. Other functions are the same as MC33035. Its pin list is shown in Table 3-6.     2. MC33035 Function Description     (1) Rotor position sensor decoding circuit: This decoding circuit converts the motor's rotor position sensor signal into six-channel drive output signals, three-channel upper drive output and three-channel lower drive output. It is suitable for sensors such as Hall integrated circuits or optocoupler circuits with open collectors . The input terminals 4, 5, and 6 are equipped with boost resistors. The input circuit is compatible with TTI circuit level, and the threshold voltage is 2.2V. This integrated circuit is suitable for sensor phase differences of 606 and 120. ,240. ,300. Four cases of three-phase brushless motors.