UA9849

DESCRIPTION 

 The UTC UA9849 is ICs developed for CD-ROM spindle 

motor drives. These ICs possess a short brake and 

reverserotation brake for two types of brake functions, and also 

contain FG output and rotation direction detection (FR) circuits,

making them high-functionality and high-performance ICs. 

FEATURES 

* Three-phase, full-wave, pseudo-linear drive system. 

* Built-in power save and thermal shutdown functions. 

* Built-in current limiter and Hall bias circuits. 

* Built-in FG output. 

* Built-in rotation direction detector. 

* Built-in reverse rotation prevention circuit. 

* Built-in short brake pin.

规格书UA9849