LB1889

The LB1889 is designed as one kind of 3-phase brushless omtor driver for CD-ROM spindle motors. Features of the LB1889 are:(1)3-phase bipolar brushless motor driver;(2)eliminates need for output electrolytic capacitor (however, depending on the motor, this may not apply);(3)thermal shutdown circuit built-in;(4)overcurrent protection circuit built-in;(5)on-chip index delay circuit;(6)on-chip index comparator (single HYS);(7)AGC circuit;(8)temperature protection circuit.

The absolute maximum ratings of the LB1889 can be summarized as:(1)maximum supply voltage: 7.0 V;(2)output supply voltage: 20 V;(3)output current: 1.3 A;(4)allowable power dissipation: 0.77 to 15.0 W;(5)operating temperature: -20 to +75 ;(6)storage temperature: -55 to +150 . If you want to know more information such as the electrical characteristics about the LB1889, please download the datasheet in www.seekic.com or www.chinaicmart.com.