Fairchild Semiconductor FAN8024BD Datasheet
FAN8024BD
4-Channel Motor Driver
www.fairchildsemi.com
Features
• 2-Channel BTL driver with current feedback
• 2-C hann el BT L DC motor d r iver
• Built-in thermal shutdown circuit
• Built-in mute circuit
• Operating supply voltage: 4.5~13.2V
Description
The FAN8024BD is a monolithic IC, suitable for 2-ch BTL
DC motor drivers and 2-ch motor driv ers with current
feedback which drive the focus and tracking actuators of a
CD- media system.
28-SSOPH-375
Typical Applications
• Compac t disk RO M (CD- ROM)
• Compact disk RW (C D - RW)
• Digital video disk ROM (DVD-ROM)
• Digital video disk RAM (DVD-RAM)
• Digital video disk player (DVDP)
• Other compact disk media
Ordering Information
Device Package Operating Temp.
FAN8024BD 28-SSOPH-375 -25 °C ~ 85 °C
FAN8024BDTF 28-SSOPH-375 -25 °C ~ 85 °C
Rev . 1.0.1
©2002 Fairchild Semiconductor Corporation
FAN8024BD
Pin Ass ign m e n ts
STBY
REF
27 26 25 24 23 22 21 20 19 18 17 16 15
28
(GND)
FIN
IN4
CAP4.1
CAP4.2
IN3
VCCGND
PVCC2
FB4
PGND2
DO3−DO3+
DO4−DO4+
FAN8024BD
123
IN1
CAP1.2
CAP1.1
45
IN2.1
IN2.2
7
6
FIN
FB1
OUT2
(GND)
89
VCC
PVCC1
10 11
PGND1
−
DO2
12
DO2+
13 14
−
DO1
DO1+
2
Pin Defi ni ti o n s
Pin Number Pin Name I/O Pin Function Description
1 IN1 I CH1 input 2 CAP1.1 - Connection with capacitor 3 CAP1.2 - for CH1 4 IN2.1 I OP-AMP CH2 input(+) 5 IN2.2 I OP-AMP CH2 input(-) 6 OUT2 O OP-AMP CH2 output 7 FB1 I Feedback for CH1 8 VCC - Signal Vcc
9 PVCC1 - Power Supply 1 10 PGND1 - P ower Groun d 1 11 DO2 12 DO2 + O Drive2 Out put (+ ) 13 DO1 14 DO1 + O Drive1 Out put (+ ) 15 DO4 + O Drive4 Out put (+ ) 16 DO4 17 DO3 + O Drive3 Out put (+ ) 18 DO3 19 PGND2 - P ower Groun d 2 20 FB4 - Feedback for CH4 21 PVCC2 - Power Supply 2 22 VCCGND - Vcc ground 23 IN3 I CH3 input 24 CAP4.2 - Connection with capacitor 25 CAP4.1 - for CH4 26 IN4 I CH4 input 27 REF I B ias voltage input 28 STBY I Stand-by input
−
−
−
−
O Drive2 Output (-)
O Drive1 Output (-)
O Drive4 Output (-)
O Drive3 Output (-)
FAN8024BD
3
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