Fairchild Semiconductor KA3022D3 Datasheet
KA3022D/KA3022D3
4-Channel Motor Driver
www.fairchildsemi.com
Features
• 3-Channel Balance d Transformer Less(BTL) driver
• 1-Channel forwa r d-Reverse contr ol DC mot o r dr i ve r
• Built-in thermal shutdown circuit
• Built-in mute circuit
• Operating supply voltage: 4.5~13.2V
• Corresponds to 3.3V or 5V DSP
Description
The KA3022D/KA3022D3 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-375
28-SSOPH-375SG2
Typical Applications
• Compact dis k ROM (CD-ROM)
• Compact di sk RW (CD-RW)
• Digital video disk ROM (DVD-ROM)
• Digital video disk RAM (DVD-RAM)
• Digital video disk Player (DVDP)
• Other compact disk media
©2000 Fairchild Semiconductor International
Ordering Information
Device Package Operating Temp.
KA3022D 28-SSOPH-375 -35 °C ~ 85 °C
KA3022DTF 28-SSOPH-375 -35 °C ~ 85 °C
KA3022D3
KA3022D3TF
1
28-SSOPH-375SG2
28-SSOPH-375SG2
-35 °C ~ 85 °C
-35 °C ~ 85 °C
Rev. 1.0.1
May. 2000.
KA3022D/KA3022D3
Pin Assignments
GND
DO4-
27 26 25 24 23 22 21 20 19 18 17 16 15
28
(GND)
DO4+
IN4
IN4.1
REF
FIN
VCC1
VCC3
IN3
CTL
DO3+
DO3-
FWD
REV
KA3022D/KA3022D3
123
DO1-
IN1
DO1+
45
IN1.1
OPIN+
7
6
OPIN-
FIN
(GND)
MUTE4
89
GND
OPOUT
10 11
VCC2
NC
12
DO2+
13 14
DO2-
GND
2
Pin Definitions
Pin Number Pin Name I/O Pin Function Description
1 DO1- O Drive1 Output (-)
2 DO1+ O Drive1 Output (+)
3 IN1 I Drive1 Input
4 IN1.1 I Drive1 Input, gain adjust.
5 OPIN+ I OP-AMP Input (+)
6 OPIN- I OP-AMP Input (-)
7MUTE4ICH4 Mute
8GND-Ground
9 OPOUT O OP-Amp Output
10 VCC2 I Power Suppl y for CH2 and pre d river
11 NC - No Connection
12 DO2+ O Drive2 Output (+)
13 DO2- O Drive2 Output (-)
14 GND - Ground
15 REV I CH2 Reverse
16 FWD I CH2 Forward
17 DO3- O Drive3 Output (-)
18 DO3+ O Drive3 Output (+)
19 CTL I CH2 Motor Speed Control
20 IN3 I CH3 Input
21 VCC3 I Power Supply for CH3
22 VCC1 I Power Supply for CH1,4
23 REF I Bias Vol tag e I npu t
24 IN4.1 I Drive4 Input, gain adjust.
25 IN4 I Drive4 Input
26 DO4+ O Drive4 Output (+)
27 DO4- O Drive4 Output (-)
28 GND - Ground
KA3022D/KA3022D3
3
KA3022D/KA3022D3
Internal Block Diagram
GND
DO4-
DO4+
IN4
28 27 26 25 24 23 22 21 20 19 18 17 16 15
2
X
TSD
D
2
X
2
X
12345
DO1-
2
X
D
D
D
IN1
DO1+
6
+
-
5
K
.
8
1
K
5
.
6
IN1.1
IN4.1
REF
VCC1
Vcc1
5
.
K
1
.
8
K
5
-
+
-
+
E
U
M
T
4
7
6
OPIN-
OPIN+
MUTE4
Vcc3
1
-
+
-
+
VCC3
IN3
K
.
5
6
.
5
K
8
Vcc2
89
GND
OPOUT
CTL
2
X
10 11
VCC2
DO3+
DO3-
FWD
REV
2
X
D
D
S
W
C
S
M
-
+
12
13 14
NC
DO2-
DO2+
GND
4
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