Microchip's MTD6505 device is a 3-phase full-wave sensorless driver for brushless DC (BLDC) motors. It features 180° sinusoidal drive, high torque output and silent drive. With the adaptive features, parameters and wide range of power-supplies (2 V to 5.5 V), the MTD6505 is intended to cover a broad range of motor characteristics, while requiring minimum external components.

Speed control can be achieved through either power supply modulation (PSM) or pulse-width modulation (PWM). The compact packaging and the minimal bill-of-materials make the MTD6505 device extremely cost efficient in fan applications.

MTD6505 Application Diagram