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KA9259D
5-Channel Motor Driver
Features
•
•
•
•
•
•
1-phase, full-wave, linear DC motor driver
Built-in TSD (Thermal shutdown) circuit
Built-in 5V regulator (With an external PNP Transistor)
Built-in mute circuit
Built-in loading motor speed control circuit
Wide operating supply voltage range: 6V~13.2V
Description
The KA9259D is a monolithic integrated circuit, suitable for
5-ch motor driver which drives focus actuator, tracking actu-
ator, sled motor, spindle motor and loading motor of CD sys-
tem.
28-SSOPH-375
Typical Applications
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•
•
•
Compact disk player (CDP)
Video compact disk player (VCD)
Automotive compact disk player (CDP)
Other compact disk media
Ordering Information
Device
KA9259CD
KA9259ED
Package
28-SSOPH-375
28-SSOPH-375
Operating Temp.
−25°C
~ +75°C
−25°C
~ +75°C
−25°C
~ +75°C
−25°C
~ +75°C
KA9259CDTF 28-SSOPH-375
KA9259EDTF 28-SSOPH-375
Rev. 1.0.1
February. 2000.
©2000 Fairchild Semiconductor International
1
KA9259D
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
DO1.1
DO1.2
DI1.1
DI1.2
REB
REO
MUTE
GND1
DI5.1
DI2
DO2.1
DO2.2
GND2
DI5.2
DO5.1
DO5.2
DO3.1
DO3.2
DI3
LD CTL
V
CC1
V
CC2
VREF
DI4.1
DI4.2
DO4.1
DO4.2
GND3
I/O
O
O
I
I
O
O
I
-
I
I
O
O
-
I
O
O
O
O
I
I
-
-
I
I
I
O
O
-
Focus output 1 (−)
Focus output 2 (+)
Focus input 1
Focus input 2 (Adjustable)
Regulator base
Regulator output, 5V
Mute
Ground 1
Loading input 1
Spindle input 2
Spindle output (+)
Spindle output (−)
Ground 2
Loading input 2
Loading output 1(+)
Loading output 2(−)
Sled output (−)
Sled output (+)
Sled input
Loading motor speed control
Supply voltage 1
Supply voltage 2
2.5V bias
Tracking input 1 (Adjustable)
Tracking input 2
Tracking output 1 (+)
Tracking output 2 (−)
Ground 3
Pin Function Description
3
KA9259D
Equivalent Circuits
Driver input (Except for loading motor driver)
Driver output
2.5V
10k
10k
1
2
11 12 15
16 17 18 27 26
20k
10 3
25 19
4
24
0.58k
V
REF1
Loading motor driver input
Loading motor speed control input
9
14
50k
50k
50k
50k
50k
20
50k
50k
50k
50k
50k
50k
50k
50k
50k
Mute input
Bias input
50k
50k
7
23
50k
5