DESCRIPTION

The  UH457 is a single coil motor driver with integrated Hall

sensor. Lock-shutdown and auto-restart function protects the motor

from being over-heated and restarts the motor after being locked.

Thermal-shutdown protection (TSD) ensures the internal drivers

of IC are operating under a safe operating temperature range.

The UH457 also uses Soft-switch phase-switching technique to

reduce the vibration and acoustic noise.

FEATURES

* Soft switching output driver

* Built-in Hall sensor motor driver

* Motor lock protection and automatic restart

* Thermal shutdown protection

* H-Bridge MOS driver

* For 12V or 24V DC motor / FAN systems