Promoting energy efficient cooling system designs, 600 mA MLX90297 integrates Hall Effect sensor with 2 half bridge output stages. In addition to minimum speed setting, speed curve can be tuned via inclusion of one extra resistor. Soft start and soft switching mechanisms achieve optimal acoustic noise levels, as well as minimal vibration at higher speeds, without sacrificing max motor torque, and reduced driver resistance (RDSon) allows application to fans with coil resistances <10 Ω.