FD036KT

FD036UT

Sensorless 3-phase brushless DC Motor driver

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

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