描述 Description

FD0250f is a single-phase full-wave motor driver with embedded Hall-effect sensor. It integrates a H-bridge MOSdriver, a high sensitivity Hall-effect sensor, an event timer for locked rotor detection, and the variable speed controlfunction with the alarm signal output logic into the ultra-small TS826 package, which make the motors’ PCB (printedcircuit board) design easier and the fabrication of small-size DC motors or FANs as simple as possible.The external system could read the alarm signal of rotation from RD signal of FD0250f.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 operatingtemperature range.All the protection mechanisms mentioned above combine to provide a complete protecting scenario in the motorsystem and avoid any possible damages and guarantee under a correct and safe operation.

特性 Features

˙Built-in Alarm Signal Output (RD)?
˙“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