Feeling Technology FD1257H
FD1257H 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. 21, 2008 P.1 FEELING TECHNOLOGY Pin Connection Marking Distinguish FD1257H 1257H YMV-XX 1 2 3 4 1257H YMV-XX Lot Number Mass Production Version Half month (ex:A,B ~ X) Year (ex:2008 8) VDD Figure.2 Pin Descriptions Name VDD NO SO VSS I/O P O O G FD1257H 1 2 3 4 VSS NO SO Figure.3 Description...FEATURES
Motor driver with integrated Hall sensor Lock-shutdown protection & auto-restart function Precise magnetic switching thresholds “Soft-switch” phase-switching technique to reduce vibration and acoustic noise Thermal shutdown protection Available in SIP-4L packages For 12V systems FD1257H Smart motor driver with embedded Hall sensor Halogen FreeGENERAL DESCRIPTION
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 combine to provide a complete 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 Coil Driver Oscillator Digital control logics Power-On Reset Figure.1 This datasheet contains new product information.