Fairchild Semiconductor KA9259EDTF, KA9259ED Datasheet

KA9259D(KA9259ED)

5-Channel Motor Drive IC

www.fairchildsemi.com

Features

• 1-Phase, Full-Wave, Linear DC Motor Driver

• Built-in TSD (Thermal Shutdown) Circuit

• Built-in 5V Regulator (With An External PNP TR)

• 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, and
suitable for 5-CH motor driver which drives fo cus actuator,
tracking actuator, sled motor, spindle motor and loading
motor of CD system.

28-SSOPH-375

Typical Applications

• Compact D isk Player (C DP)

• Video Compact Disk Player (VCD)

• Automotive Compact Disk Player (CDP)

• Other Compact Disk Media

©2002 Fairchild Semiconductor Corporation

Ordering Information

Device Package Operating Temp.

KA9259ED 28-SSOPH-375 -25°C ~ +75°C

KA9259EDTF 28-SSOPH-375 -25°C ~ +75°C

Rev. 1.0.2

KA9259D(KA9259ED)

Pin Assignments

GND3

DO4.2

1234567 891011121314

DO1.1

DO1.2

FIN

(GND)

DO4.2

DI4.2

DI4.1

VREF

CC2

V

CC1

V

LD CTL

DI3

DO3.2

DO3.1

DO5.2

DO5.1

1516171819202122232425262728

KA9259D

REB

DI1.1

DI1.2

REO

MUTE

FIN

(GND)

GND1

DI2

DI5.1

DO2.1

DO2.2

GND2

DI5.2

2

Pin Definitions

Pin Number Pin Name I/O Pin Function Description

1 DO1.1 O Focus Output 1(-)
2 DO1.2 O Focus Output 2(+)
3 DI1.1 I Focus Input 1
4 DI1.2 I Focus Input 2 (Adjustable)
5 REB O Regulator Base
6 REO O Regulator Output, 5V
7MUTEIMute
8 GND1 - Ground 1

9 DI5.1 I Loading Input 1
10 DI2 I Spindle Input 2
11 DO2.1 O Spindle Output (+)
12 DO2.2 O Spindle Output (-)
13 GND2 - Ground 2
14 DI5.2 I Loading Input 2
15 DO5.1 O Loading Output 1(+)
16 DO5.2 O Loading Output 2(-)
17 DO3.1 O Sled Output (-)
18 DO3.2 O Sled Output (+)
19 DI3 I Sled Input
20 LD CTL I Loading Motor Speed Control
21 V
22 V

CC1
CC2

23 VREF I 2.5V Bias
24 DI4.1 I Tracking Input 1 (Adjustable)
25 DI4.2 I Tracking Input 2
26 DO4.1 O Tracking Output 1(+)
27 DO4.2 O Tracking Output 2(-)
28 GND3 - Ground 3

- Supply Voltage 1

- Supply Voltage 2

KA9259D(KA9259ED)

3

KA9259D(KA9259ED)

Internal Block Diagram

GND3

DO4.2

DO4.1

FIN

(GND)

DI4.2

DI4.1

CC2

VREF

V

22232425262728

CC1

V

LD CTL

DI3

DO3.2

DO3.1

DO5.2

DO5.1

15161718192021

10k

+

+

REB

−

TSD

Regulator

Mute

50k

10k

10k

714

REO

MUTE

50k

FIN

(GND)

+

−

Level
shift

+

−

Level
shift

+

−

12 345 6 8 9 10 11 12 13

DO1.1

DO1.2

10k

−

+

2.5V

10k

10k

DI1.1

−

DI1.2

GND1

10k

+

−

Level
shift

10k

+

−

−

+

10k

Level
shift

−

+

10k

DI2

DI5.1

DO2.1

DO2.2

−

Level
shift

+

COMP

GND2

+

−

DI5.2

4

Equivalent Circuits

Driver Input (Except For Loading Motor Driver) Driver Output

KA9259D(KA9259ED)

50k

50k

2.5V

10k

10

4

2419325

10k

0.58k

20k

V

1162171118122715

REF1

Loading Motor Driver Input Loading Motor Speed Control Input

50k

50k

14

50k

50k 50k

50k

50k

50k

9

50k

50k

50k

50k

Mute Input Bias Input

26

20

50k

7

50k

50k

23

5