HIGH-VOLTAGE FULL-BRIDGE BRUSHLESS DC HALL MOTOR DRIVER

DESCRIPTION

The UTC UHC1477 is a full-bridge motor driver for the single
coil brushless DC motor. It is designed by advanced CMOS
process, could worked in high voltage up to 40V Besides, this
device has extremely low power dissipation, the quiescent current
only 2mA.
The UTC UHC1477 includes the Hall sensor, Chopper for offset
cancellation, Hall temperature compensation, voltage regulator,
thermal shutdown and the output full bridge. Rotor-lock shutdown
detection circuit shut down the output driver if the rotor is blocked
and then the automatic recovery circuit will try to restart the motor.
This function repeats while rotor is blocked. Until the blocking is
removed, the motor recovers running normally.
The UTC UHC1477 is optimized for vibration motor applications
in single coil brushless direct current motor or fan.

FEATURES

* Built in Hall sensor
* Rotor-locked restart function
* Built in 40V full-wave motor driver
* Wide input range 3V~36V
* Thermal shutdown protection
* Excellent temperature stability
* Output driver capability up to 450mA