The demo for the electric scooter is based on a commercial product and implemented by NM1244. NM1244 integrates numerous popular functions used in motor control, such as OPA/ ACMP/ DAC/ CCAP. As a result, it helps users save the PCB space, lower the BOM cost and extend the control ability. Furthermore, users can quickly transfer the software/hardware to their product based on the demo system.

• Features
  

  -	24V/ 15A/ 360W
  -	2-R FOC current control
  -	Supports low speed detection (down to 40 rpm for 20 poles motor)
  -	No extra OPA/ ACMP needed
  -	12-bit DAC provides high resolution for negative input of ACMP
  -	Electric brake
  -	OC/ OV/ LV/ Block protection

• Specifications
  

  NM1244 (32-bit Arm® Cortex®-M0)
  -	Up to 60 MHz operating frequency
  -	Operating voltage: 2.4V to 5.5V
  -	Operating temperature: -40℃ to 105℃
  -	Two sets of 12-bit ADC with 20 channels
  -	24-bit Timer
  -	OPA/ ACMP/ DAC inside
  -	High immunity: 6 kV ESD and 4 kV EFT
  -	Power down current: 1 μA

• System Block Diagram