DESCRIPTION
SD1579 is a one-chip, two phase Hall IC fan driver use the advanced BICDMOS process.Power output stage using LDMOS transistors, with low  Rdson,  low  power  dissipation  and  capable  of  withstanding  high output drive current.

FEATURES
* Built-in lock protection circuit;
* Built-in Auto restart  circuit;
* Built-in Hall sensor with high stability of the dynamic compensation circuit;
* Built-in Hall amplifier with hysteresis;
* Built-in Zener Diodes protect outputs circuit;
* Built-in Voltage Regulator circuit.
* Built-in Reverse-voltage protection diode
* Hall magnetic window, consistency and temperature stability;
* Wide operating voltage range, small quiescent current;  * Low Rdson, high drive current capability;

APPLICATIONS
* Dual coils brush-less DC fan;
* Dual coils brush-less DC motor.