KA3027D2

www.fairchildsemi.com KA3027D2 4-Channel Motor Driver Features 3-Channel Balanced TransformerLess(BTL) driver 1-Channel forward-Reverse control DC motor driver Built-in thermal shutdown circuit Built-in mute circuit Operating supply voltage: 4.5~5.5V Corresponds to 3.3V or 5V DSP Description The KA3027D2 is a monolithic IC, suitable for a 1-ch (forward.reverse) control DC motor driver and a 3-ch motor driver which drives the focus actuator,tracking actuator, and sled motor of a CD-media system. 28-SSOPH-300 Typical Applications Notebook compact disk ROM (CD-ROM) Other portable compact disk media Ordering Information Device KA3027D2 Package 28-SSOPH-300 Operating Temp. -35 °C ~ 85 °C -35 °C ~ 85 °C KA3027D2TF 28-SSOPH-300 Rev. 1.0.1 February. 2000. ©2000 Fairchild Semiconductor International 1 1 2 3 4 5 6 7 27 26 25 24 23 22 28 VCC DO4DO4+ VM3,4 PGND1 DO3DO3+ MUTE3 MUTE1,2 REF REV FWD CTL SGND Pin Assignments FIN (GND) KA3027D2 MUTE4 VM1,2 DO2DO2+ PGND2 DO1DO1+ FIN (GND) 2 21 8 9 10 11 12 13 14 IN3 20 19 18 17 16 15 OUT2 IN2.2 IN2.1 OUT1 IN1.2 IN1.1 KA3027D2 KA3027D2 Pin Definitions Pin Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Pin Name VCC DO4DO4+ VM3, 4 PGND1 DO3DO3+ MUTE4 VM1,2 DO2DO2+ PGND2 DO1DO1+ IN1.1 IN1.2 OUT1 IN2.1 IN2.2 OUT2 IN3 SGND CTL FWD REV REF MUTE1,2 MUTE3 I/O O O O O O O O O I I O I I O I I I I I I I Signal VCC Drive4 Output (-) Drive4 Output (+) BTL CH3, 4 Power VCC CH3, 4 Po...