The air purifier demo is based on a commercial product and implemented by NM1244. NM1244 integrates numerous popular functions used in motor control, such as OPA/ACMP/DAC. It helps users save PCB space and lower the BOM cost and tuning. Based on the demo system, users can more easily transfer the software/hardware to their product.

• Features
  

  -	24V/ 2.5A/ 50W
  -	Supports for direct input/VSP
  -	Speed control with 1-R FOC
  -	No extra OPA/ACMP needed
  -	12-bit DAC provides high resolution for negative input of ACMP
  -	No extra gate driver IC needed
  -	OC/ OV/ LV/ Block protection

• Specifications
  

  NM1244 (32-bit Arm® Cortex®-M0)
  -	Operating frequency: up to 60 MHz
  -	Operating voltage: 2.5V to 5.5V
  -	High immunity: 4 kV EFT
  -	Operating temperature: -40℃ to 105℃
  -	OPA/ ACMP/ DAC inside
  -	Two sets of 12-bit ADC with 20 channels
  -	Power down current: 1 μA
  -	High I/O sink current capability

• System Block Diagram