www.fairchildsemi.com
KA9259D(KA9259HD)
5-Channel Motor Drive IC
Features
• 4-CH Balanced Transformerless(BTL) Driver
• 1-CH (Forward/Reverse) DC Motor Driver With Speed
Control Circuit
• Built-in TSD (Thermal Shutdown) Circuit
• Built-in 5V Regulator (With an External PNP Transistor)
• Built-in Mute Circuit
• Wide Operating Supply Voltage Range: 6V~13.2V
Description
The KA9259D is a monolithic integrated circuit, and suit-
able for 5-CH motor driver which drives focus actuator,
tracking actuator, sled motor, spindle motor and loading
motor of compact disk player system.
28-SSOPH-375
Typical Applications
•
•
•
•
Compact Disk Player (CDP)
Video Compact Disk Player (VCD)
Automotive Compact Disk Player (CDP)
Other Compact Disk Media
Ordering Information
Device
KA9259HD
Package
28-SSOPH-375
Operating Temp.
-25°C
~ +75°C
-25°C
~ +75°C
KA9259HDTF 28-SSOPH-375
Rev. 1.0.3
©2003 Fairchild Semiconductor Corporation
KA9259D(KA9259HD)
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
VCC1
VCC2
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
-
Pin Function Description
Channel 1 output 1
Channel 1 output 2
Channel 1 input 1
Channel 1 input 2 (Adjustable)
External transistor base drive output
Regulator output
Mute signal input
Ground 1
Channel 5 input 1 (Loading Motor)
Channel 2 input
Channel 2 output 1
Channel 2 output 2
Ground 2
Channel 5 input 2 (Loading Motor)
Channel 5 output 1 (Loading Motor)
Channel 5 output 2 (Loading Motor)
Channel 3 output 1
Channel 3 output 2
Channel 3 input
Channel 5 (Loading Motor) speed control input
Power supply voltage 1
Power supply voltage 2
Bias voltage input
Channel 4 input 1 (Adjustable)
Channel 4 input 2
Channel 3 output 1
Channel 3 output 2
Ground 3
3
KA9259D(KA9259HD)
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
50k
23
5
Microcontroller MCU
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