rohm referencedesigns

refmot101

refmot101reference design / application evaluation kit | rohm co., ltd.-ag旗舰平台尊龙

12v supply, 3 hall sensor, three phase brushless dc motor drive reference deisgn

this design consists of a three-hole sensor three-phase brushless dc motor pre-driver and a mosfet. it is an evaluation board that can drive a brushless dc motor with a supply voltage of 12v (typ) and a motor current of 6a (max) by adding a speed control circuit using a microcontroller to the 3 hall sensor 3-phase brushless dc motor drive circuit. it requires only one external power supply. when a hall ic is used, the logic ic can detect the direction of rotation and output a triple multiplier fg.


  • 3 hole sensor three phase brushless dc motor pre-driver and output mos p n configuration
  • supply voltage 12v(typ)
  • output current 6a(max)
  • pwm drive with 120 degree commutation.
  • rotation direction switching, short braking function
  • rotation direction detection output, triple fg output possible (when hall ic is used)
  • speed control by mcu is possible.
rms332sd-011

design resources

 
  • rms332sd-011

specifications

 
board number input voltage output current driving method other features size
rms332sd-011 6.0v to 18.0v 6a(max.) depending on driving capability of mosfet 3 hole sensor 120 degree commutation input: control input (dc or pwm), rotation direction switching, short brake.
outputs: rotation direction detection, triple multiplier fg output, fg output.
60mm×75mm

distribution inventory

 
board number distributor quantity available

key components

 
board number part number product category datasheet status spice ltspice thermal model symbol & footprint 3d step samacsys ecad library calc tool rohm solution simulator
rms332sd-011 bd450m2efj-c linear regulators active solution simulator
rms332sd-011 bd63001amuv 3 phase brushless dc motor drivers recommended -
rms332sd-011 rrh140p03 12 to 150v mosfets recommended -
rms332sd-011 rs3e135bn 12 to 150v mosfets active -