FD036UT

FEELING TECHNOLOGY FD036KT FD036UT Sensorless 3-phase brushless DC Motor driver Features PWM (pulse width modulation) speed control Built-in FG(frequency generation) for rotation speed calculation, or RD(rotation detection) signal output for rotation status monitoringSoft-switching technique to reduce vibration and acoustic noise Thermal shutdown protection Lock protection and auto-restart function Selectable direction of rotation(FD036UT) Low stand-by current in Disable mode(FD036UT) General Description FD036 is a sensorless 3-phase brushless DC motor driver. It senses the BEMF(Back-ElectroMotive Force) of the motor in rotation and provides corresponding commutation current to the motor. The use of sensorless technology means no Hall sensors are needed. The absence of the Hall-sensor makes the fabrication of the motor easier and is especially suitable for ultra-small motors since the motor driver IC is placed outside the motor assembly. Block Diagram Fig.1 This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product. Rev1.3 Sep. 24, 2008 P.1 FEELING TECHNOLOGY Pin Connection UOUT VSS WOUT FG FR FD036KT FD036UT WOUT UOUT FG VSS 8 7 6 5 10 9 8 7 6 036KT YWV-LL 1 2 PWM 3 VDD 4 VOUT CT 036UT YWV-LL 1 2 3 PWM 4 5 VOUT EN VDD CT Fig.2 Pin Descriptions Nam...