Built-in high sensitivity Hall-effect sensor
H-Bridge MOS driver output
Output BTL soft-switching to reduce vibration and acoustic noise
Alarm signal output(RD)
Lock-shutdown protection & auto-restart function
Thermal shutdown protection
Available in TS825 package
For 24V BLDC motor / FAN systems
General Description
FD225Mf is a HV single-phase full-wave BLDC motor driver with embedded Hall-effect sensor IC. It integrates a H-bridge MOS driver, a high sensitivity hall-effect sensor, an event timer for rotor locked and an alarm output logic only in TS825 package, which make the motors’ PCBs(printed circuit boards) design easy and fabricate the small and tiny size DC motors or FANs as simple as possible. 
For safety, Lock-shutdown function would turn the IC’s internal drivers off avoiding the coil over-heat when the rotor is locked, and IC will re-start rotor torque timing after the IC’s shutdown time. 
FD225Mf is built-in the alarm signal output function, the external system could be readout the motor’s rotation status(RD) from the signal pin of FD225Mf IC.
Thermal-shutdown protection(TSD) ensures the internal drivers of IC are operating under a safe operating temperature range. 
All the protection mechanisms mentioned above combine to provide a complete protecting scenario in the motor system and avoid any possible damages and guarantee under a correct and safe operation.