FD0251f Datasheet | Feeling Technology

FEELING TECHNOLOGY Features FD0251f FD0255f Smart motor driver with embedded Hall sensor Motor driver with integrated Hall sensor Halogen Free High current driving capability Lock-shutdown protection & auto-restart function Built-in FG(frequency generation) signal output Precise magnetic switching thresholds “Soft-switch” phase-switching technique to reduce vibration and acoustic noise(patent pending) Thermal shutdown protection PWM speed control(only available for FD0255f) Available in both TS825(FD0251f) and TS826(FD0255f) packages General Description FD0251f/FD0255f is a single coil motor driver with embedded Hall sensor. It integrates the motor driver with the Hall sensor, which simplifies the PCB(printed circuit board) design and make the fabrication of small-size motors possible. Lock-shutdown and auto-restart function keeps the motor from being over-heated and restarts the motor after being locked. “Soft-switch” phase-switching technique is used to reduce the vibration and acoustic noise. Thermal-shutdown protection ensures the motor driver to operate under specified temperature ranges. All the protection mechanisms mentioned above bine to provide a plete protecting scenario for the motor system, keep the motor system from possible damages and guarantee correct operations. Block Diagram Bias Generator Hall Plate Chopper amplifier Oscillator Coil Driver Digital control logics Power On Reset Figure.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 acpany the sales of the product. Rev1.2 Nov. 06, 2008 P.1 FEELING TECHNOLOGY Pin Connection PWM VDD SO FD0251f FD0255f FD0255f VDD SO 4 bb 1 2 3 g 1 ba 2 3 g Figure.2 Pin Descriptions Name FG VSS NO SO VDD PWM I/O O G O O P I FD0251f 1 2 3 4 5 FD0255f 1 2 3 4 5 6 Description...