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FAN8008
6-Channel Motor Drive IC
Features
* * * * * * * * * 4-CH balanced transformerless (BTL) driver 2-CH (forward-reverse) control DC motor driver Operating supply voltage (4.5V ~ 16V) Built-in thermal shut down circuit (TSD) Built-in under voltage lockout circuit (UVLO) Built-in over voltage protection circuit (OVP) Built-in mute circuit (CH1, CH2, CH3 and CH4) Built-in normal op-amp Built-in 3.3V regulator with reset
Description
The FAN8008 is a monolithic integrated circuit suitable for a 6-ch motor driver which drives the tracking actuator, focus actuator, sled motor, tray motor, change motor and spindle motor of the CDP/CAR-CD systems.
48-QFPH-1414
Typical Applications
* Compact disk player (CDP) with tray and changer * Video compact disk player (VCD) with tray and changer * Automotive compact disk player (CDP) with tray and changer * Other compact disk media
Ordering Information
Device FAN8008 Package 48-QFPH-1414 Operating Temp. -35C ~ +85C
Rev. 1.0.1 February. 2000.
(c)2000 Fairchild Semiconductor international
FAN8008
Pin Assignments
IN1.1 REG50 REG050 REF SVCC RES50 48 47 46 45 44 43
OPIN(+)OPIN(-)OPOUT PVCC2 DO1.1 DO1.2 42 41 40 39 38 37
IN1.2
1
36
DO2.1
OUT1 IN2.1
2 3
35
DO2.2 PGND3
34
IN2.2
4
32
DO3.1
OUT2 IN3.1
5
32
DO3.2 PGND2
6
FAN8008
31
IN3.2
7
30
PGND1
OUT3 IN4.1
8
29
DO4.1 DO4.2
9
28
IN4.2
10 11
27
DO5.1
OUT4 CTL1
26
DO5.2 DO6.1
12
25
13
14
15
16
17
18
19
20
21
22
23
24
FWD1 REV1
CTL FWD2 REV2 SGND
MUTE1MUTE2 MUTE3 MUTE4 PVCC1 DO6.2
2
Rev. 1.0.1 February. 2000.
FAN8008
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 29 30 31 32 33 34 35 36 37 38 39 40 Pin Name IN1.2 OUT1 IN2.1 IN2.2 OUT2 IN3.1 IN3.2 OUT3 IN4.1 IN4.2 OUT4 CTL1 FWD1 REW1 CTL2 FWD2 REW2 SGND MUTE1 MUTE2 MUTE3 MUTE4 PVCC1 DO6.2 DO6.1 DO5.2 DO5.1 DO4.2 DO4.1 PGND PGND DO3.2 DO3.1 PGND DO2.2 DO2.1 DO1.2 DO1.1 PVCC2 OPOUT I/O I O I I O I I O I I O I I I I I I I I I I O O O O O O O O O O O O O Pin Function Description CH 1 op-amp input (-) CH 1 op-amp output CH 2 op-amp input (+) CH 2 op-amp input (-) CH 2 op-amp output CH 3 op-amp input (+) CH 3 op-amp input (-) CH 3 op-amp output CH 4 op-amp input (+) CH 4 op-amp input (-) CH 4 op-amp output CH 5 motor speed control CH 5 forward input CH 5 reverse input CH 6 motor speed control CH 6 forward input CH 6 reverse input Signal ground CH 1 mute CH 2 mute CH 3 mute CH 4 mute Power supply voltage (For CH 5, CH 6) CH 6 drive output CH 6 drive output CH 5 drive output CH 5 drive output CH 4 drive output CH 4 drive output Power ground Power ground CH 3 drive output CH 3 drive output Power ground CH 2 drive output CH 2 drive output CH 1 drive output CH 1 drive output Power supply voltage (For CH 1, CH 2, CH 3, CH 4) Opamp output
Rev. 1.0.1 February. 2000.
3
FAN8008
Pin Definitions (Continued)
Pin Number 41 42 43 44 45 46 47 48 Pin Name OPIN(-) OPIN(+) RES50 SVCC REF REG050 REG50 IN1.1 I/O I I I I O O I Opamp input (-) Opamp input (+) Regulator 3.3V reset Signal supply voltage Bias voltage input Regulator 3.3V output Regulator output CH 1 opamp input (+) Pin Function Description
4
Rev. 1.0.1 February. 2000.
FAN8008
Internal Block Diagram
IN1.1 48
REG50 REG050 REF 47 46 45
SVCC 44
RES50 43
OPIN(+) OPIN(-) OPOUT PVCC2 DO1.1 42 41 - 40 39 38
DO1.2 37
IN1.2
1 +- T.S.D O.V.P
+
36
DO2.1
OUT1
2 2.5V
35
DO2.2
IN2.1
3 + - - +
+ - + - + - + - + -
- + - + - + - + - + - + - + - + D
34 2P 2P 33
PGND3
IN2.2
4
DO3.1
OUT2
5
+ -
- +
2P 2P
32
DO3.2
IN3.1
6 + - - +
31 2P 2P 2P 2P 29
PGND2
IN3.2
7
+ -
- +
30
PGND1
OUT3
8 S W M S C 2P D 2P
DO4.1
IN4.1
9
28
DO4.2
IN4.2 10
S W
M S C
+ -
D 2P D 2P
27
DO5.1
OUT4 11 MUTE4 MUTE3 MUTE2 MUTE1 13 FWD1 14 REV1 15 CTL 16 FWD2 17 REV2 18 SGND 19 20 21 22
26
DO5.2
CTL1 12
25
DO6.1
23
24
MUTE1 MUTE2 MUTE3 MUTE4 PVCC1 DO6.2
Notes: 1. SW = Logic switch 2. MSC = Motor speed control 3. D = Output driver
Rev. 1.0.1 February. 2000.
5
FAN8008
Equivalent Circuit
Description Pin No. Internal circuit
VCC 10k 48 3
VCC 14 7 10 10k
Input OPIN (+) OPIN (-)
69
48, 3, 6, 9 1, 4, 7. 10
4k
VCC VCC 25
Input opout
10k Vr
2, 5, 8, 11
8 11
25k
VCC
CTL
12, 15
12 15
0.1k 100k
6
Rev. 1.0.1 February. 2000.
FAN8008
Equivalent Circuit (Continued)
Description Pin No. Internal circuit
VCC
Logic drive FWD input REV input
13, 16 14, 17
13 6 14 17
30k
30k
VCC
CH mute
19, 20 21, 22
19 20 21 22
30k 2k
VCC
Logic drive output
10k
24, 25 26, 27
24 25 26 27 20k
1k
1k Vr
VCC
4-CH drive output
28, 29 32, 33 35, 36 37, 38
28 29 32 33 35 36 37 38
10k 10k
1k
Rev. 1.0.1 February. 2000.
7
FAN8008
Equivalent Circuit (Continued)
Description Pin No. Internal circuit
VCC
VCC
Normal opout
40
50 40 50
VCC
VCC
Normal OPIN(+) OPIN(-)
42 41
41
42
5k
VCC
Ref
45
0.1k 45
2k
8
Rev. 1.0.1 February. 2000.
FAN8008
Equivalent Circuit (Continued)
Description Pin No. Internal circuit
VCC
RES50
43
50k 43
50k
VCC 2k 2k
REG050
46
41 10k 10k
VCC VCC 53k
REG50
47
47
10k
Rev. 1.0.1 February. 2000.
9
FAN8008
Absolute Maximum Ratings (Ta=25C)
Parameter Maximum supply voltage Power dissipation Operating temperature Storage temperature Maximum output current Symbol VCC PD TOPR TSTG IOMAX 3 Value 18
note
Unit V W C C A
-35 ~ +85 -55 ~ +150 1
NOTE: 1. When mounted on 70mm x 70mm x 1.6mm PCB. 2. Power dissipation reduces 16mW / C for using above Ta=25C. 3. Do not exceed Pd and SOA.
Power Dissipation Curve
Pd (mW) 3,500 2,500
1,500 0 0 25 50 75 100 125 150 175 Ambient temperature, Ta [C]
Recommended Operating Conditions (Ta=25C)
Parameter Operating supply voltage Symbol VCC Min. 4.5 Typ. Max. 16 Unit V
10
Rev. 1.0.1 February. 2000.
FAN8008
Electrical Characteristics
(SVCC=PVCC1=PVCC2=8V, Ta=25C, unless otherwise specified) Parameter Quiescent circuit current CH mute on voltage CH mute off voltage DRIVER PART (RL=8) Input offset voltage Output offset voltage Maximum output voltage 1 Maximum output voltage 2 Closed-loop voltage gain Ripple rejection ratio Slew rate NORMAL OPAMP PART Input offset voltage Input bias current High level output voltage Low level output voltage Output sink current Output source current Open loop voltage gain Ripple rejection ratio Slew rate Common mode rejection ratio VOF1 IB1 VOH1 VOL1 ISINK1 GVO1 RR1 SR1 CMRR1 RL=50 RL=50 VIN=-75dB, f=1kHz Square, Vout=2Vp-p, f=120kHz VIN=-20dB, f=1kHz -10 6 10 10 6.8 1.0 40 40 75 65 1 80 +10 300 1.8 mV nA V V mA mA dB dB V/s dB VIO VOO VOM1 VOM2 AVF RR SR VIN=2.5V VCC=8V, RL=8 VCC=13V, RL=24 VIN=0.1VRMS VIN=0.1VRMS, f=120kHz Square, Vout=2Vp-p, f=120kHz -20 -50 4.0 7 9 5.5 9 10.5 50 0.8 +20 +50 12 mV mV V V dB dB V/s Symbol ICC VMON CH Conditions under no-load Pin 19, 20, 21, 22=Variation Min. 9 2 Typ. 12 Max. 16 0.5 Unit mA V V
VMOFF CH Pin 19, 20, 21, 22=Variation
ISOURCE1 VIN=-20dB, f=120kHz
Rev. 1.0.1 February. 2000.
11
FAN8008
Electrical Characteristics (Continued)
(SVCC=PVCC1=PVCC2=8V, Ta=25C, unless otherwise specified) Parameter INPUT OPAMP PART Input offset voltage Input bias current High level output voltage Low level output voltage Output sink current Output source current Open loop voltage gain Slew rate Common mode rejection ratio 3.3V REGULATOR PART Regulator output voltage Load regulation Line regulation Reset on voltage Reset off voltage Input high level voltage Input low level voltage Output voltage 1 Output voltage 2 Output load regulation Output offset voltage 1 Output offset voltage 2 Vreg VR1 VCC Reson Resoff VIH VIH VO1 VO2 VR1 VOO1 VOO2 VIN=5V, 5V VIN=0V, 0V IL=100mA IL=0200mA IL=200mA, VCC=6V9V VCC=8V, VCTL=3.5V VCC=13V, VCTL=4.5V 3.135 -40 -20 2 2 5.2 7.5 -10 -10 3.3 0 0 6.0 8.5 300 3.465 +10 +30 0.5 0.5 6.8 9.5 700 +10 +10 V mV mV V V V V V V mV mV mV VOF2 IB2 VOH2 VOL2 ISINK2 ISOURCE2 GVO2 SR2 CMRR2 VIN=-75dB, f=1kHz Square, Vout=2Vp-p, f=120kHz VIN=-20dB, f=1kHz -10 7 500 500 7.7 0.2 800 800 80 1 80 +10 400 0.5 mV nA V V A A dB V/s dB Symbol Conditions Min. Typ. Max. Unit
TRAY, CHANGER DRIVER PART (RL=45)
12
Rev. 1.0.1 February. 2000.
FAN8008
Application Information
1. Reference Input
Pin 45 (REF) can use the reference Input pin . * Reference input In the case of the reference input pin, you must keep the applied voltage range between 2[V] and 6.5[V] at VCC = 8[V].
2. Separated Channel Mute Function
These pins are used for individual channel mute operation. * When the mute pins (pin19, 20, 21 and 22) are lowlevel, the mute circuits are activated so that the output circuit is muted. * When the voltage of the mute pins (pin19, 20, 21 and 22) are high level, the mute circuit is stopped and output circuits operate normally. * If the chip temperature rises above 175C, then the thermal shutdown (TSD) circuit is activated and the output circuits are muted. - Mute 1 (pin 19)-CH1 mute control input pin. - Mute 2 (pin 20)-CH2 mute control input pin. - Mute 3 (pin 21)-CH3 mute control input pin. - Mute 4 (pin 22)-CH4 mute control input pin.
3. Protection Function
* Thermal shutdown (TSD) If the chip temperature rises above 175C, then the thermal shutdown (TSD) circuit is activated and the output circuit is will be mute. The TSD circuit is temperature hysteresis 25C. * Under voltage lockout (UVLO) and over voltage protection (OVP) It is designed to mute-operate the internal bias by the function of UVLO and OVP, when the power supply voltage falls below 3.5[V] or above 20[V].
Rev. 1.0.1 February. 2000.
13
FAN8008
4. Regulator & Reset Function
The regulator and reset circuits are as illustrated in Figure 1. where R1=R2. * The external circuit is composed of the transistor, KSB772 and a capacitor, about 33[F]. The capacitor is used as a ripple eliminator and should have good temperature characteristics. * The regulator output voltage (pin 46) is decided as follows. Vout = 2 x 1.65= 3.3[V] (where R1 = R2) * When the voltage of pin 43 (Vreset) is at 3.3[V], the regulator output voltage (pin 46) because 3.3[V]. If the voltage of pin 43 is 0[V], the output voltage of pin 46 because 0[V].
VCC
KSB772
REG OUT + 33F Vreset
47
46
44
43
39
2.5V
+ -
R1
R2
FAN8008
Figure 1. Regulator circuit
14
Rev. 1.0.1 February. 2000.
FAN8008
5. Focus, Tracking Actuator, Spindle, Sled Motor Drive Part
M
Rfeed2
Vr Rref2 IC Rref2
- LEVEL
+ SHIFT
AP1 45 - + +
Rfeed1
- Vref
Rref1 2 5 8 11
BF - + 1 4 7 10
Vin 3 6 9 48
* The voltage, Vref is the reference voltage given by the external bias voltage of the pin 45. * The input signal (Vin) through pins 3, 6, 9 and 48 is amplified one times (Rref1 = Rfeed1) by the AP1 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 are fed into the output amplifier, where output amplifier (AP2, 3) gain is two times (all Rref2 = Rfeed2). * If you desire to change the gain, the input buffer amplifier (BF) can be used. * The output stage is the balanced transformerless (BTL) driver. * The bias voltage Vr is expressed as below;
V CC - V BE Vr = --------------------------- [ V ] 2
Rev. 1.0.1 February. 2000.
-
+
AP2 -
AP3 +
Rfeed2
15
FAN8008
6. Tray, Change Motor Drive Part
24
out 1 26
M
out 2 25 27
D
D
LEVEL SHIFT
CTL1, 2 12 15
M.S.C
S.W
IN
IN
FWD 13 16
REV 14 17
* Rotational direction control The forward and reverse rotational direction is controlled by FWD (pin 13, 16) and REV (pin 14, 17) input conditions are as follows. INPUT FWD H H L L REV H L H L OUT 1 Vr H L Vr OUTPUT OUT 2 Vr L H Vr State Brake Forward Reverse Brake
* where Vr is (Vcc - Vbe) / 2 = 3.65V (at Vcc=8V) * where Out1 pins are pins 24 and 26, and out2 pins aer pins 25 and 27 * Motor speed control - The almost maximum torque is obtained when it is used with the pins 12 and 15 (CTL1, 2) open. - If the torque of the motor is too low, then the applied voltage at pins 12 and 15 (CTL1, 2) are 0[V]. - When motor speed controlled, the applied voltage of the pins 12 and 15 (CTL1, 2) is between 0 and 4V. Also, if the speed control is constant, the applied voltage of the pins 12 and 15 (CTL1, 2) is between 4 and 5V. - This IC's applied maximum voltage is 6V when VCC is 8V. - You must not use the applied CTL1, 2 voltage above 5.8V when VCC is 8V, and 3V when VCC is 5V.
16
Rev. 1.0.1 February. 2000.
FAN8008
Typical Perfomance Characteristics
Total circuit
Icc(mA)
14 13.5 13 12.5 12 11.5 11 5 6 7 8 9 10 11 12 13 14
Icc(mA)
13.4 13.2 13 12.8 12.6 12.4 12.2 12

Vcc=Var. Temp=25 C
11.8 11.6 11.4 -30 -10 0 10 30 40
Vcc=8V Temp= Var.
50 60 70 80
Vcc(V)
Temp(C)
Focus, Tracking, Spindle, Sled drive part
Vom(V)
10.0 9.0 8.0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 4 5 6 7 8 9 10 11 12 13 4.0 6.0 10.0 8.0
Avf(dB)
12.0

Vcc=Vari. Temp=25 C RL=8
2.0 0.0 4 5 6 7 8 9
Vcc=Var. Temp=25 C RL=8 Vin=0.1Vrms f=1KHz
10 11 12 13
Vcc(V) Vout(V)
5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0.2 0.4 0.6 0.8 1 1.2 1.4 10.6 10.8 10.7
Vcc(V) Avf(dB)
10.9

Vcc=8V Temp=25 C RL=8 Vin= Var.
10.5 10.4 10.3 -30
vcc=8V temp= Var. RL=8 Vin=0.1Vrms f=1KHz
-10 0 10 30 40 50 60 70 80
Vin(V)
Temp (C)
Rev. 1.0.1 February. 2000.
17
FAN8008
Typical Perfomance Characteristics (Continued)
Vom(V)
5.52 5.5 5.48 5.46 5.44 5.42 5.4 5.38 5.36 5.34 5.32 -30 -10 0 10 30 40 50

vcc=8V temp= Var. RL=8
60 70 80
Temp (C)
Tray, Change drive part
Vo (V)
9.0 8.0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 4 5 6 7 8 9 10 11 12 13 5.9 5.8
Vo (V)
6.1 6.0

Vcc=Var. Temp=25 C RL=45 Vin=5V/0V Vctl=3.5V
5.7 5.6 5.5 5.4 -30
vcc=8V temp= Var. RL=45 Vin=5V/0V Vctl=3.5V
-10 0 10 30 40 50 60 70 80
Vcc(V) Vo (V)
7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
Temp (C) Vo (V)

7.0 6.0 5.0 4.0

Vcc=8V Temp=25 C RL=45 Vin= 5V/0V Vctl= Var.
3.0 2.0 1.0 0.0 0.5
Vcc=8V Temp=25 C RL=8 Vin= 5V/0V Vctl= Var.
1 1.5 2 2.5 3 3.5 4 4.5 5
Vctl(V)
Vctl(V)
18
Rev. 1.0.1 February. 2000.
FAN8008
Typical Perfomance Characteristics (Continued)
Regulator part
Vreg (V)
6.0 5.0 4.0 3.0 5.00 2.0 1.0 0.0 4 5 6 7 8 9 10 11 12 13
Vreg (V)
5.08 5.06 5.04 5.02

Vcc=Var. Temp=25 C IL=100mA
4.98 4.96 4.94 -30
vcc=8V temp= Var. IL=100mA
-10
0
10
30
40
50
60
70
80
Vcc(V)
Temp (C)
Normal op amp part
Isou1(mA)
70.0 60.0 50.0 40.0 30.0 20.0 10.0 0.0 4 5 6 7 8 9 10 11 12 13
Isink1(mA)
70.0 60.0 50.0 40.0 30.0

Vcc=Var. Temp=25 C RL=50
20.0 10.0 0.0 4 5 6 7 8 9
Vcc=Var. Temp=25 C RL=50
10
11
12
13
Vcc(V) GVo1(dB)
86.0 84.0 82.0 80.0 78.0 76.0 74.0 72.0 70.0 68.0 4 5 6 7 8 9 10 11 12 13
Isou1(mA)
59.0 58.0 57.0 56.0
Vcc(V)
Vcc=Var. Temp=25 C RL=1K Vin=100uVp_p f=1KHz
55.0 54.0 53.0 52.0 51.0 -30
vcc=8V temp= Var. RL=50
-10 0 10 30 40 50 60 70 80
Vcc(V)
Temp (C)
Rev. 1.0.1 February. 2000.
19
FAN8008
Typical Perfomance Characteristics (Continued)
Isink1(mA)
60. 0 50. 0 40. 0 30. 0 20. 0 10. 0 0. 0 -30

vcc=8V temp= Var. RL=50
-10 0 10 30 40 50 60 70 80
Temp (C)
Input op amp part
Isou2(uA)
2500
Isink2(uA)
1600 1400

2000 1500
1200 1000 800
1000 500
Vcc=Var. Temp=25 C RL=1 k
4 5 6 7 8 9 10 11 12 13
600 400 200 0 4 5 6 7 8 9
Vcc=Var. Temp=25 C RL=1 k
10 11 12 13
0
Vcc(V) GVo2(uA)
83 82 81 80 79 78 77 76 75 74 73 4 5 6 7 8 9 10 11 12 13
Vcc(V)

Vcc=Var. Temp=25 C RL=1 k
Vcc(V)
20
Rev. 1.0.1 February. 2000.
FAN8008
Test Circuits
VCC KSB772 REG OUT + IL 33F 1000F Vref 2.5V Ripple
~ + 1 100F 2 20
+
O P I N
OO PP IO NU T RL
(-) - (+)
Vreset 48 IN1.1 OPIN (+) OPIN (-) OPOUT IN1.2 1 47 REG50 46 REG050 45 REF 44 SVCC 43 RES50 42 OPIN(+) 41 OPIN(-) 40 OPOUT 39 PVCC2 38 DO1.1 37 DO1.2 36 DO2.1 RL
2 OUT1 3 IN2.1 OPIN (+) OPIN (-) OPOUT 4 IN2.2 5 OUT2 6 IN3.1
DO2.2 35 PGND3 34 DO3.1 33 RL DO3.2 32 PGND2 31
FAN8008
OPIN (+) OPIN (-) OPOUT 7 IN3.2 8 OUT3 9 IN4.1 OPIN (+) OPIN (-) OPOUT CTL1 10 IN4.2 MUTE1 MUTE2 MUTE3 MTUE4 PVCC1 SGND FWD1 FWD2 REV1 REV2 11 OUT4 12 PGND1 30 DO4.1 29 RL DO4.2 28 DO5.1 27 DO5.2 DO6.2 RL 26 DO6.1 25 RL IL IL
13 CTL1
14
15
CTL
16
17
18
19
20
21
22
23
24
IL IN1A IN1B CTL2 IN2A IN2B
IL
opamp part OPIN(+) OPIN(-) OPOUT
1 1M
SW3 2
1
2
3
4 D
SW7 A~ B 1 10F 1M
1k SW5 1 2 VCC
50 SW6 1 2 VCC
Rev. 1.0.1 February. 2000.
21
FAN8008
Application Circuits 1
Voltage Mode Control
VCC KSB772 REG OUT + 33F Vreset FOCUS
48 IN1.1 IN1.2 1
47 REG50
46 REG050
45 REF
44 SVCC
43 RES50
42 OPIN(+)
41 OPIN(-)
40 OPOUT
39 PVCC2
38 DO1.1
37 DO1.2 36 DO2.1 TRACKING
2 OUT1 3 IN2.1 4 IN2.2 5 OUT2 6 IN3.1
DO2.2 35 PGND3 34 DO3.1 33 M SPINDLE DO3.2 32 PGND2 31
FAN8008
7 IN3.2 8 OUT3 9 IN4.1 10 IN4.2 MUTE1 MUTE2 MUTE3 MTUE4 SGND FWD1 FWD2 REV1 REV2 11 OUT4 CTL1 12 PGND1 30 DO4.1 29 M SLED DO4.2 28 DO5.1 27 PVCC1 DO6.2 DO5.2 26 25 M TRAY DO6.1 M CHANGE
13
14
15
CTL
16
17
18
19
20
21
22
23
24
SLED SPINDLE TRACKING FOCUS
MUTE MUTE MUTE MUTE
REF &
FOCUS TRACKING SPINDLE SLED INPUT INPUT INPUT INPUT
TRAT CONTROL CHANGE INPUT TY CG INPUT
Where TY is tray motor. CG is change motor
[SERVO PRE AMP]
[CONTROLLER]
Notes: 1. Radiation pin is connected to the internal GND of the package. 2. Connect the pin to the external GND.
22
Rev. 1.0.1 February. 2000.
FAN8008
Application Circuits 2 (Continued)
Differential Mode Control
VCC KSB772
REF
REG OUT + 33F Vreset FOCUS
48 IN1.1 IN1.2 1
47 REG50
46 REG050
45 REF
44 SVCC
43 RES50
42 OPIN(+)
41 OPIN(-)
40 OPOUT
39 PVCC2
38 DO1.1
37 DO1.2 36 DO2.1 TRACKING
2 OUT1 3 IN2.1 4 IN2.2 5 OUT2 6 IN3.1
DO2.2 35 PGND3 34 DO3.1 33 M SPINDLE DO3.2 32 PGND2 31
FAN8008
7 IN3.2 8 OUT3 9 IN4.1 10 IN4.2 MUTE1 MUTE2 MUTE3 MTUE4 SGND FWD1 FWD2 11 OUT4 REV1 CTL CTL1 12 PGND1 30 DO4.1 29 M SLED DO4.2 28 DO5.1 27 DO5.2 PVCC1 DO6.2 M TRAY 26 DO6.1 25 M CHANGE
13
14
15
16
17
REV2
18
19
20
21
22
23
24
SLED SPINDLE TRACKING FOCUS
MUTE MUTE MUTE MUTE
PWM1 PWM2 FOCUS
PWM3 PWM4 TRACKING
PWM5 PWM6 SPINDLE
PWM7 PWM8 SLED
TRAT CONTROL CHANGE INPUT TY CG INPUT
Where TY is tray motor. CG is change motor
[SERVO PRE AMP]
[CONTROLLER]
Rev. 1.0.1 February. 2000.
23
FAN8008
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 INTERNATIONAL. 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 12/1/00 0.0m 001 Stock#DSxxxxxxxx 2000 Fairchild Semiconductor International
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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