FD225CH is a HVHC 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 a tachometer output logic only in SIP-5L 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. 

FD225CH is built-in the tachometer signal output function, the external system could be readout the motor’s speed(FG) from the signal pin of FD225CH 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.