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FAN8047G3
4-CH Motor Driver (5 Input & 4 Output)
Features
* * * * * * 4-CH Balanced transformerless (BTL) driver Optional input (CH4,5) for output CH4 Operating supply voltage : 4.5 V ~ 14V Built-in thermal shut down circuit (TSD) Built-in channel mute circuit Built-in 3.3 volt regulator
Description
The FAN8047G3 is a monolithic integrated circuit suitable for a 4-ch motor driver which drives a tracking actuator, a focus actuator, a sled motor, a spindle motor, and a tray motor of the CDP/CAR-CD/DVDP systems.
28-SSOPH-375SG2
Typical Application
* * * * Compact disk player Video compact disk player Car compact disk player Digital video disk player
Ordering information
DEVICE FAN8047G3 FAN8047G3Xnote1 FAN8047G3_NL
Notes: 1. X : Tape&Reel 2. NL : Lead free
note2
PACKARE 28-SSOPH-375-SG2 28-SSOPH-375-SG2 28-SSOPH-375-SG2 28-SSOPH-375-SG2
OPERATING TEMP -35C ~ +85C -35C ~ +85C -35C ~ +85C -35C ~ +85C
FAN8047G3X_NL
Rev. 1.0.1
(c)2003 Fairchild Semiconductor Corporation
FAN8047G3
Pin assignments
SW45 MUTE3 IN5 REF2 IN4 IN3 SVcc PVcc2 MUTE4 GND DO3DO3+ DO4DO4+
28
27
26
25
24
23
22
FIN
21
20
19
18
17
16
15
FAN8047G3
1
REF1
2
IN1
3
IN2
4
RESX
5
REGOX
6
REGX
7
GND
FIN
8
PVcc1
9
MUTE12
10
GND
11
DO2-
12
DO2+
13
DO1-
14
DO1+
2
FAN8047G3
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 REF1 IN1 IN2 RESX REGOX REGX GND PVcc1 MUTE12 GND DO2DO2+ DO1DO1+ DO4+ DO4DO3+ DO3GND MUTE4 PVcc2 SVcc IN3 IN4 REF2 IN5 MUTE3 SW45 I/O I I I I I O I O O O O O O O O I I I I I I I CH1 Input CH2 Input Regulator reset Regulator feedback input Regulator output Signal ground Power Vcc (CH1,CH2) Mute 1,2 Power ground (CH1,CH2) CH2 Drive output (-) CH2 Drive output (+) CH1 Drive output (-) CH1 Drive output (+) CH4 Drive output (+) CH4 Drive output (-) CH3 Drive output (+) CH3 Drive output (-) Power ground (CH3,CH4) Mute 4 Power Vcc (CH3,CH4) Signal Vcc CH3 Input CH4 Input REF2 CH5 Input Mute 3 Select switch for CH4,5 PIN FUNCTION DESCRITION Bias voltage input
3
FAN8047G3
Internal block diagram
PVCC2
MUTE3
MUTE4
SW45
SVCC
DO4-
DO3-
28
SW45
27
MUTE3
26
25
24
23
22
FIN
21
20
19
GND
18
17
DO3+
16
15
SVCC REF1 5K 5K
PVCC2
MUTE4
LEVEL SHIFT LEVEL SHIFT
20K 20K REF2 sw45 20K 5K
10K 20K
LEVEL SHIFT
10K 20K
LEVEL SHIFT
2.5V
25K
GND
PVCC1
MUTE 12
GND
8K 1 REF1 2 IN1 3 IN2 4 RESX 5 REGOX 6 REGX 7 GND FIN 8 PVCC1 9 MUTE12 10 GND 11 DO212 DO2+ 13 DO114 DO1+
4
DO4+
REF2
IN4
GND
IN5
IN3
FAN8047G3
Equivalent circuits
BTL Driver output
SVCC PVCC
SW45
20K
11 12 13 14 15 16 17 18
28 100K 100K
100K 100K
30K
BTL Input(CH1,2)
SVCC
BTL Input(CH3,4,5)
SVCC
23
2 3 5K 1K
24 26
10K
1K
1K
2K
2K
2K
2K
Mute
Reference
9 20 27
50
50K 50K
1 25
50K 50K
5
FAN8047G3
Equivalent circuits(Continued)
Regulator reset Regulator feedback input
SVCC
4
50K 50K
1K
8K 5
25K
Regulator output
SVCC
6
30K
6
FAN8047G3
Absolute maximum ratings ( Ta=25C)
PARAMETER Maximum supply voltage Power dissipation Operating temperature Storge temperature Maximum output current SYMBOL SVCCMAX PVCC1MAX PVCC2MAX PD TOPR TSTG IOMAX VALUE 18 18 18 2.5note1,2,3 -35 ~ +85 -55 ~ +150 1 UNIT V V V W C C A
Notes: 1. When it is mounted on 70mm x 70mm x 1.6mm PCB. 2. Power dissipation decreases at the rate of 20mW/C in TA >25C. 3. Do not exceed PD and SOA.
Pd (mW) 3,000 2,000
1,000 0 0 25 50 75 100 125 150 175 Ambient temperature, Ta [C]
Recommended operating conditions ( Ta=25C)
PARAMETER Operating supply voltage SYMBOL SVCC PVCC1 PVCC2 MIN 4.5 4.5 4.5 TYP MAX 14 SVCC SVCC UNIT V V V
7
FAN8047G3
Electrical characteristics
(SVCC = PVCC2 = 12V, TA = 25C, PVCC1 = 5V, Ref1= 1.65V, Ref2 = 2.5V, RL = 8) PARAMETER Quiescent circuit current BTL Driver circuit (RL=8) Output offset voltage(CH12) Output offset voltage(CH34) Output offset voltage(CH5) Maximum output voltage(CH12) Maximum output voltage(CH34) Close-loop voltage gain(CH12) Close-loop voltage gain(CH34) Load regulation Line regulation Regulator output voltage 1 Regulator reset on voltage Regulator reset off voltage Mute and other function circuit Mute on voltage Mute off voltage SW on voltage SW off voltage Mute low level sink current Mute high level sink current SW45 Low level sink current SW45 High level sink current REF1 Sink current REF2 Sink current
(* note) : Guaranteed field. ( No EDS/ Final test . )
SYMBOL ICC VOOF1 VOOF2 VOOF3 VOM1 VOM2 AVF AVF
CONDITIONS Under no-load VIN=1.65V VIN=1.65V VIN=2.5V PVcc1=5V, RL=8 PVcc2=12V, RL=24 VIN= 0.3V VIN= 0.3V IL=0 200mA IL=200mA, V=6V 9V IL=100mA Pin4=Variation Pin4=Variation Pin9,20,27=Variation Pin9,20,27=Variation Pin28=Variation Pin28=Variation VMUTE = 0V VMUTE = 5V SW45 = 0V SW45 = 5V REF1 = 1.65V REF2 = 2.5V
MIN -50 -100 -100 3.6 9.6 15.5 21.5 -10 -20 3.135` 2 2 2 -15 -15 -
TYP 17 4.0 10.5 17.5 23.5 0 0 3.3 0 85 0 85 52 85
MAX 25 +50 +100 +100 19.5 25.5 +10 +30 3.465 0.5 0.5 0.5 15 170 15 170 104 170
UNITS mA mV mV mV V V dB dB mV mV V V V V V V V uA uA uA uA uA uA
Regulator circuit (SVCC,PVCC2=12V)
VRL VCC
VREG1 Reson Resoff VMON VMOFF VSWL VSWH IMTL IMTH ISWL45 ISWH45 IRL IRH
8
FAN8047G3
Application information
1. MUTE, REF & SW45 Function
INPUT
SW45 MUTE12 MUTE3 MUTE4 REF1 REF2
OUTPUT BTL CH12 CH3 ON OFF OFF ON OFF OFF OFF OFF CH4 IN4 IN4 OFF OFF OFF OFF IN5 OFF PRE-AMP CH4 ON ON OFF ON ON OFF OFF OFF CH5 ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON
REG
H H H H H L L L
H H H L L -
H L H H L -
L H H
H H L H H -
H L
ON ON OFF OFF OFF OFF OFF OFF
2. Regulator & Reset function
REGVCC Vref 2.5V
6 REGX
KSB772
5 REGOX 4
Vout 33uF
RESX
R1
8K
R2
25K
* * * *
V
The external circuit is composed of the transistor, KSB772 and a capacitor, about 33uF. The capacitor is used as a ripple eliminator. The capacitor must have a good temperature characteristics. The regulator output voltage is decided as follows.
out
=V
ref
x (1 + 8K 25 K
R1 ) R2 = 3.3V
= 2 .5 x
* When the voltage of the pin 4(RESX) is high, the regulator circuit operates normally. When the voltage of pin 4(RESX) is low, the regulator circuit is disabled.
9
FAN8047G3
3. TSD Function
* When the chip temperature reaches to 160C by abnormal condition, the TSD circuit is activated. * This makes the bias current of the output drivers shut down, and all the output drivers are on cut-off state. Therefore the chip temperature begins to decrease. * When the chip temperature falls to 140C, the TSD circuit is deactivated and the output drivers start to operate normally. * The TSD function does not affect regulator operation.
SVCC IREF R1 Q0 R2 Hysteresis Ihys R3
Output driver bias
4. Notice
* When REF1(pin1) or REF2(pin25) is lower than 0.7V, BTL output is off. * Under Voltage Protecton Function. ( If SVcc is lower than 3.8V, Chip is disable. Hysterisis is 0.2V) * Mute on BTL output voltage is as followed: - Mute ON BTL Output (CH1,2) = (PVcc1 ) / 2 - Mute ON BTL Output (CH3,4) = ((PVcc2-0.6) / 2 Each output to output and output to GND short should be kept away.
10
FAN8047G3
Typical performance characteristics
Total circuit
Icc(mA)

25 20 15 10 5 Temp=25 OC 0 4.5 5.5 6.5 7.5 8.5 9.5 10.5 11.5 12.5 13.5 14.5 0 -35 -25 -15 -5 5 15 25 20 15 10 5 SV cc=12V PV cc2=12V PV cc1=5V 25 35 45 55 65 75 85
Icc(mA)

Vcc(V)
Temp(C)
BTL Drive part
Vom(V) Vom(V)

14 12 10 8 6 4 2 0 4 5 6 7 8 9 10 11 12 13 14 V in=0V RL=8 14 12 10 8 6 4 2 0 4 5 6

V in=0V RL=8 7 8 9 10 11 12 13 14
Vcc(V) Vom(V) Vom(V)
Vcc(V)

14 12 10 8 6 4 2 0 4 5 6 7 8 9 10 11 12 13 14 V in=0V RL=24 14 12 10 8 6 4 2 0 4 5 6 7

Vin=0V RL=24 8 9 10 11 12 13 14
Vcc(V)
Vcc(V)
11
FAN8047G3
Typical performance characteristics (Continued)
Avf(dB) Avf(dB)

26 24 22 20 18 16 14 12 10 4 5 6 7 8 9 10 11 12 13 14 Temp=25 C V in=0.3V Freg=1KHz RL=8
O

26 24 22 20 18 16 14 12 10 4 5 6 7 8 9 10 11 12 13 14 Temp=25 O C V in=0.3V Freg=1KHz RL=8
Vcc(V) Avf(dB) Avf(dB)
Vcc(V)

26 24 22 20 18 16 14 12 10 4 5 6 7 8 9 10 11 12 13 14 Temp=25 O C V in=0.3V Freg=1KHz RL=24 26 24 22 20 18 16 14 12 10 4 5 6 7

Temp=25 O C V in=0.3V Freg=1KHz RL=24 8 9 10 11 12 13 14
Vcc(V) Avf(dB) Avf(dB)
Vcc(V)

24 22 20 18 16 14 12 10 8 -40 -20 0 20 40 60 80 V in=+0.3V V in=-0.3V SV cc=12V PV cc1=5V PV cc2=12V Freq=1KHz RL=8 24 22 20 18 16 14 12 10 8 -40 -20

V in=+0.3V V in=-0.3V 0 20 40
SV cc=12V PV cc1=5V PV cc2=12V Freq=1KHz RL=8 60 80
Temp(C)
Temp(C)
12
FAN8047G3
Typical performance characteristics (Continued)
Avf(dB) Avf(dB)

26 24 22 20 18 16 14 12 10 -40 -20 0 20 40 60 80 V in=+0.3V V in=-0.3V SV cc=12V PV cc1=5V PV cc2=12V Freq=1KHz RL=24 26 24 22 20 18 16 14 12 10 -40 -20

V in=+0.3V V in=-0.3V 0 20 40
SV cc=12V PV cc1=5V PV cc2=12V Freq=1KHz RL=24 60 80
Temp(C)
Temp(C)
Regulator part
V CC vs V reg 3.40 3.38 3.35 3.33 3.30 3.28 3.25 3.23 3.20 4.5 6.5 8.5 10.5 12.5 V CC(V ) 3.45 3.4 Vreg(V) 3.35 3.3 3.25 3.2 3.15 -45 -20 5 30 Temp 55 80 Temp vs V reg
VREG(V)
13
14
A REF1 A 27 IN1 MUTE3 A IN2 IN5 A REF2 A IN4 24 IN3 23 RESX 25 SW45 28 1 A 2 26 3 4 5 REGX 22 GND SVCC 6 7 REGVCC REGOX A A
KSB772
FAN8047G3
Test circuits
FAN8047G3
33uF
Vout FIN 8 SW2 11 DO2DO2+ DO1V DO1+ 14 V SW1 A 9 MUTE12 GND A 10 12 13 PVCC1
FIN PVCC2 A 21 20 MUTE4 GND DO3DO3+ DO4DO4+ 19 SW3 18 V 17 SW4 16 V 15 A
FAN8047G3
Typical application circuit
15 DO4+ Sled & Loading M Motor 16 DO417 DO3+ Spindle M Motor 18 DO319 GND 20 MUTE4 12V 21 PVCC2 0.1uF FIN
DO1+ 14 DO1- 13 DO2+ 12 DO2- 11 GND 10 MUTE12 PVCC1 9 5V 8 0.1uF FIN Tracking Actuator Focus Actuator
12V 0.1uF 22 SVCC 23 IN3 24 IN4 25 REF2 26 IN5 27 MUTE3 28 SW45
FAN8047G3
GND REGX REGOX RESX IN2 IN1
7 6 5 PVCC1 4 3 2
REGVCC
KSB772
Vout
33uF
REF1 1
MICOM
SERVO
TRACKING
LOADING
SPINDLE
MUTE12
SW45
MUTE4
VREF1
MUTE3
FOCUS
VREF2
SLED
15
FAN8047G3
Package dimension
28-SSOPH-375-SG2
Unit : mm
16
FAN8047G3
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 4/9/03 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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