Sensorless 3-phase brushless DC Motor driver
FEELING TECHNOLOGY
FD036KT FD036UT
Sensorless 3-phase brushless DC Motor driver
Features
PWM (pulse width modulation) ...
Description
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...
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