FD0259规格书(必威体育精装版版).pdfVIP

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FD0259规格书(必威体育精装版版).pdf

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FD0259规格书(必威体育精装版版)

FD0259f Smart motor driver with embedded Hall sensor 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 Aug. 12, 2009 P.1 FEELING TECHNOLOGY Bias Generator H-Bridge MOS Driver Oscillator Hall Plate Reset Power On Digital Control Logic (Event Timer) Chopper Amplifier PWM Control Features Motor driver with high sensitivity Hall-effect sensor H-Bridge MOS driver Lock-shutdown protection auto-restart function Built-in tachometer signal output (FG) “Soft-switch” phase-switching technique to reduce vibration and acoustic noise Thermal shutdown protection (TSD) PWM mode variable speed control Available in TS826 package For 5V DC motor / FAN systems General Description FD0259f is a single-phase full-wave motor driver with embedded Hall-effect sensor. It integrates a H-bridge MOS driver, a high sensitivity Hall-effect sensor, an event timer for locked rotor detection, and the variable speed control function with the tachometer or alarm signal output logic into the ultra-small TS826 package, which make the motors’ PCB (printed circuit board) design easier and the fabrication of small-size DC motors or FANs as simple as possible. The external system could read the motor’s speed of rotation from FG signal of FD0259f. For safety, Lock-shutdown function turns the IC’s internal driver off to avoid over-heating when the rotor is locked, and the IC will try to re-start the motor after the shutdown interval. Thermal-shutdown protection (TSD) ensures the internal driver of IC is operating under the safe operating temperature range. All the protection mechanisms mentioned above combine to provide a complete protecting scenario in the motor system and avoid any possibl