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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 suitable 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. -25C ~ +75C -25C ~ +75C
KA9259HDTF 28-SSOPH-375
Rev. 1.0.3
(c)2003 Fairchild Semiconductor Corporation
2
1 27 2 3 4 5 6 7 26 25 24 23 22
DI4.2 DI4.1 VREF VCC2 DO1.1
KA9259D(KA9259HD)
28
GND3 DO4.2
DO1.2 DI1.1 DI1.2 REB REGO MUTE
Pin Assignments
DO4.1
FIN
KA9259D
FIN
8 9 10
DI5.1 DI2 DO2.1 DO2.2 GND2 DI5.2 GND1
21 20 19 18
VCC1 LDCTL DI3 DO3.2
11 12 13 14
DO3.1
17 16 15
DO5.2 DO5.1
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)
Internal Block Diagram
LDCTL
DO4.1
DO3.1
DO4.2
DO3.2
GND3
VREF
28
27
26
25
24
23
22
FIN
21
20
19
18
17
DO5.2
VCC2
DI4.2
VCC1
16
15
10K
10K
10K
TSD
10K
2.5V 10K 10K
4-CH BTL Driver Output
10K
10K
10K
10K
1
DO1.1
2
DO1.2
3
DI1.1
4
DI1.2
5
REB
6
REGO
7
MUTE
FIN
8
GND1
9
DI5.1
10
11
DO2.1
12
DO2.2
13
GND2
14
DI5.2
4
DI2
DO5.1
DI4.1
DI3
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 VREF1
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
KA9259D(KA9259HD)
Absolute Maximum Ratings (Ta = 25C)
Parameter Maximum Supply Voltage Power Dissipation Operating Temperature Storage Temperature Maximum Current Output Symbol VCCMAX PD TOPR TSTG IOMAX Value 15 1.7
note
Unit V W C C A
-25 ~ +75 -55 ~ +150 1
Note: 1. When mounted on 76mm x 114mm x 1.57mm PCB (Phenolic resin material). 2. Power dissipation reduces 13.6mW / C for using above Ta=25C 3. Do not exceed Pd and SOA.
Power Dissipation Curve
Pd (mW) 3,000 2,000
1,000 0
0
25
50
75
100
125
150
175
Ambient temperature, Ta [C]
Recommended Operating Condition (Ta = 25C)
Parameter Operating Supply Voltage Symbol VCC Value 6 ~ 13.2 Unit V
6
KA9259D(KA9259HD)
Electrical Characteristics
(Ta = 25C, VCC = 8V, RL= 8, f =1kHz, unless otherwise specified) Parameter Quiescent Circuit Current Mute-on Current Mute-on Voltage Mute-off Voltage REGULATOR PART Output Voltage Load Regulation Line Regulation Input Offset Voltage Output Offset Voltage 1 Maximum Source Current 1 Maximum Sink Current 1 Maximum Output Voltage 3 Maximum Output Voltage 4 Closed-Loop Voltage Gain Ripple Rejection Ratio Slew Rate (Note1)
(Note1)
Symbol ICCQ IMUTE VMON VMOFF VREG VRL3 VCC VIO VOO1
Conditions Under no-load Pin 7=GND IL=100mA IL=0200mA VCC=613V, IL=100mA RL=8GND VIN=0.7V, VCC=13V VIN=7V, VCC=13V, VIN=8V VIN=8V, VCC=13V VIN=0.1VRMS, f=120Hz 120Hz, VIN=1VRMS, Square wave VPIN9=5V, VPIN14=0V, RL=45 VPIN9=0V, VPIN14=5V, RL=45 VCTL=3.54.5V, VPIN9=5V VPIN14=0V, RL=45 VCTL=3.54.5V, VPIN9=0V VPIN14=5V, RL=45 IL=100400mA, VPIN9=5V, VPIN14=0V IL=100400mA, VPIN9=0V, VPIN14=5V VPIN9=5V, VPIN14=5V VPIN9=0V, VPIN14=0V
Min. 2.5 2 4.7 -50 -20 -15 -40 0.25 0.25 2.5 5 40 1
Typ. 6 2.5 5.0 0 0 0.4 0.4 3.3 -5.8 6.5 60 2
Max. 10 5 0.5 5.3 50 80 15 40 4.6 -5.0 8 -
Unit mA mA V V V mV mV mV mV A A V V dB dB V/s
BTL DRIVER PART (CH1, CH2, CH3 and CH4)
ISOURCE1 RL=8VCC ISINK1 VOM3 VOM4 AVF RR SR
LOADING MOTOR DRIVER PART (UNLESS OTHERWISE SPECIFIED, VCTL=OPENED) Output Voltage 1 Output Voltage 2 Output Voltage Regulation 1 (CTL) Output Voltage Regulation 2 (CTL) Load Regulation 1 Load Regulation 2 Output Offset Voltage 2 Output Offset Voltage 3
Note : 1. Guaranteed design value
VO1 VO2 VOCTL1 VOCTL2 VRL1 VRL2 VOO2 VOO3
2.5 2.5 0.5 0.5 -40 -40
3.1 3.1 1.0 1.0 300 300 -
3.8 3.8 1.5 1.5 700 700 40 40
V V V V mV mV mV mV
7
KA9259D(KA9259HD)
Application Information
1. Mute Function
VCC
Pin #7 High Low Open
Mute circuit Mute-off Mute-on Mute-on
7
4-Channels BTL driver Bias Circuit Block
* When the mute (pin 7) is high level, the bias circuit of BTL driver is activated. On the other hand, when the mute (pin7) is open or low level, the bias circuit of BTL driver is disabled. So that the 4-channels BTL driver output circuit will be muted.
2. TSD (Thermal Shutdown) Function
VREFBG
4-Channels BTL driver & Loading motor driver Bias Circuit Block Q11
R11
R12
* The VREFBG is the output voltage of the band-gap-referenced biasing circuit and acts as the input voltage of the TSD circuit. * The base-emitter voltage of the transistor, Q11 is designed to turn-on at below voltage.
VBE =
VREFBG x R12 = 400[mV ] R11 + R12
* If the chip temperature rises above 175C, then the TSD circuit is activated and the output circuit is muted. The TSD circuit has the hysteresis temperature of 25C.
3. Voltage Regulator
21
VREFBG 2.5V
VCC
5 6
R2
PNP
Vout
C1
KA9259D
8
R3
KA9259D(KA9259HD)
* The VREFBG is the output voltage of the band-gap-referenced biasing circuit and is the reference voltage of the regulator. * The external circuit is composed of the transistor(PNP), KSB772 and a capacitor(C1), 100F, and the capacitor is used as a ripple eliminator and should have a good temperature characteristics. * The output voltage, VOUT is decided as follows.
R2 )VREFBG = 2 x 2.5 = 5[V ] R3 Where, R 2 = R3 VOUT = (1 +
4. Loading Motor Driver
4.1 Truth table and Operation INPUT PIN9(DI5.1) L H L H PIN14(DI5.2) L L H H PIN15(DO5.1) L H L L OUTPUT PIN16 (DO5.2) L L H L State Brake Forward Reverse Brake
V
Buffer
Q1 Q2
21
DI5.1
9 Input Control Logic 14 Speed Control Circuit Level Shift
15
V
DI5.2 VCC R
Buffer
M
16
Q3 Q4
20
D
Loading Motor Driver
13
* The input voltages of (5V and 0V) or (0V and 5V) pairs are applied to the input pin #9 and #14 respectively. * When the input voltages are applied to the input pin #9 and #14, then the output of the comparator is decided depends on the input voltage status. * As shown in the above diagram, the difference voltage, V, is applied to the both terminals of the motor. The direction of the motor is decided by the voltage difference, +V and -V. * The output characteristics is as follows, - If pin # 9=5V and #14=0V, then pin # 15=+V and #16= -V, hence the motor turn in forward direction. - If pin # 9=0V and #14=5V, then pin # 15= -V and #16=+V, hence the motor turn in reverse direction. - If pin # 9=5V and #14=5V, then V=0V, hence the motor stop. - If pin # 9=0V and #14=0V, then V=0V, hence the motor stop. 4.2 Loading Motor Speed Control * If the torque of the loading motor is too low when it is used with the pin #20 open, then it should used as the above diagram. * The desired torque could be obtained by selecting the appropriate resistor R as shown in the left diagram. * If it is necessary, the zener diode can be used as in the right diagram. * The maximum torque is obtained when the applied voltage at pin #20 is about 6.8V (at VCC=8V). 9
KA9259D(KA9259HD)
6. BTL Driver (CH1, CH2, CH3 and CH4)
23
VREF
I
Buffer
Q1 Q2
22
Level Shift 3
10K 10K I
2
Buffer
M
1
Q3 Q4
4
BTL Driver
28
* The voltage, VREF, is the reference voltage given by the bias voltage of the pin #23. * The input signal through the pin #3 is amplified by 10K/10K times and then fed to the level shift. * The level shift produces the current due to the difference between the input signal and the arbitrary reference signal. The current produced as +I and -I is fed into the driver buffer. * Driver Buffer operates the power Transistor of the output stage according to the state of the input signal. * The output stage is the BTL Driver and the motor is rotating in forward direction by operating transostor Q1 and Q4. On the other hand, if transistor Q2 and Q3 is operating, the motor is rotating in reverse direction. * When the input voltage through the pin #3 is below the VREF, then the direction of the motor in forward direction. * When the input voltage through the pin #3 is above the VREF, then the direction of the motor in reverse direction. * If it is desired to change the gain, then the pin #4 can be used. * When the bias voltage of the pin #23 is below 1.4V, then the output circuit is muted. Hence for the normal operation, the bias voltage should be used in 1.6V~6.5V.
7. Connect a by-pass capacitor, 0.1F between the supply voltage source.
22 21
VCC2 VCC1
KA9259D
FIN FIN
0.1uF
1. Radiation FIN is connecting to the internal GND of the package. 2. Connect the FIN to the external GND.
10
KA9259D(KA9259HD)
Typical Perfomance Charateristics
* Test contrions: VREF=2.5[V], Mute : OFF
RLOAD=8[]
Figure 1. VCC vs. AVF
Figure 2. VCC vs. ICC
RLOAD=8[] At mute on
Figure 3. VCC vs. Imute
Figure 4. VCC vs. ISINK
VIN=7[V]
ILOAD=100[mA]
RLOAD=8[]
Figure 5. VCC vs. VREG
Figure 6. VCC vs. VOM
11
KA9259D(KA9259HD)
Test Circuits
SW13 8 SW12
3 2 1
VCC
8 SW14 8 3 2 1 VCC 8 3 2 1 VCC 28 27 26 25 24 23 22 21 20 19 18 17 16 15 8 SW21 3 8 SW19 TRACKING ~ 10F Ripple ~ SW20 VCC 100F + 2 3 20 3 SW16 2+ 10F 1 SW15 IL 45 SW11 8 3 2 1 VCC CTL SLED ~ 3 2 1 VCC SW10 8 SW9 3 2 1 VCC
2+
+ 1 SW17
1 SW18 2.5V
GND3 DO4.2 DO4.1 DI4.2 DI4.1
VREF VCC2
VCC1 LD ctl DI3
DO3.2 DO3.1 DO5.2 DO5.1
KA9259D
DO1.1 DO1.2 DI1.1 DI1.2 REB 1 VCC 1 2 3 SW1 8 8 ~ SW3 SW2 8 Focus +2 + VCC 1 2 3 8 3 IL 100F Spindle Loading forwaed SW4 1 2 3 4 5 REO 6 VCC MUTE 7 GND 8 DI5.1 DI2 9 10 DO2.1 DO2.2 GND2 DI5.2 11 12 13 14 VCC Mute 1 SW5 +2 3 SW7 8 8 VCC SW6 SW8 1 2 1 2 3 Loading reverse
3 KSB772
~
12
KA9259D(KA9259HD)
Application Circuits
28
1
SLED BIAS
Focus Actuator
27
2
Servo Pre-amp
TEACKING FOCUS SPINDLE VCC
26
3 4
Tracking Actuator
25
KSB772
24
5 6 7
23 22
KA9259D
FIN
FIN
8
21
MUTE
VCC
20 9 19 10
Controller
FWD REV LD CNTL
18
11
Spindle Motor
M
17 12 13 14
M
Sled Motor
16
M
15
Loading Motor
13
KA9259D(KA9259HD)
Mechanical Dimensions
Package
Demensions in Millimeters
28-SSOPH-375
14
KA9259D(KA9259HD)
15
KA9259D(KA9259HD)
DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user.
www.fairchildsemi.com 6/11/03 0.0m 001 Stock#DSxxxxxxxx 2003 Fairchild Semiconductor Corporation
2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.

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