Reference Designs
REFMOT101 - 12V power supply, 3 hall sensor support, Three-phase brushless motor drive with Microcontroller system
ROHM Semiconductor
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.
Features
- 3 Hall 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.
Applications
- Small Mobility Unit
- Fans
- Pumps
