Datasheet FAN8045G3 Datasheet (Fairchild Semiconductor)

FAN8045G3

4-CH Motor Driver (5 Input & 4 Output)

www.fairchildsemi.com

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 1-OP AMP

• TSD Monitering Function

Description

The FAN8045G3 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

©2003 Fairchild Semiconductor Corporation

Ordering Information

Device Package Operating Temp.

FAN8045G3 28-SSOPH-375-SG2 -35°C ~ +85°C

FAN8045G3X

FAN8045G3_NL

FAN8045G3X_NL 28-SSOPH-375-SG2 -35°C ~ +85°C

Notes:

1. X : Tape&Reel

2. NL : Lead free

note1

28-SSOPH-375-SG2 -35°C ~ +85°C

note2

28-SSOPH-375-SG2 -35°C ~ +85°C

Rev. 1.0.1

FAN8045G3

Pin Assignments

MUTE3SW45

28 27 26 25 24 23 22 21 20 19 18 17 16 15FIN

IN5

FAN8045G3

1 2 3 4 5 6 7 8 9 10 11 12 13 14FIN

REF1 IN1 IN2

OPIN- OPOUT GND PVcc1

OPIN+

DO2-

DO3+DO3-

DO2+

DO4-

DO1-

DO4+

DO1+

PVcc2SVccIN3IN4REF2

MUTE4

MUTE

12

GND

GND

2

Pin Definitions

Pin Number Pin Name I/O Pin Function Description

1 REF1 I Bias Voltage Input

2 IN1 I CH1 Input

3 IN2 I CH2 Input

4 OPIN+ I Nomal OP-AMP Input(+)

5 OPIN- I Nomal OP-AMP Input(-)

6 OPOUT O Nomal OP-AMP Output

7 GND - Signal Ground

8 PVcc1 - Power Vcc (CH1,CH2)

9MUTE12IMute 1,2

10 GND - Power GND(CH1,CH2)

11 DO2- O CH2 Drive Output (-)

12 DO2+ O CH2 Drive Output (+)

13 DO1- O CH1 Drive Output (-)

14 DO1+ O CH1 Drive Output (+)

15 DO4+ O CH4 Drive Output (+)

16 DO4- O CH4 Drive Output (-)

17 DO3+ O CH3 Drive Output (+)

18 DO3- O CH3 Drive Output (-)

19 GND - Power GND(CH3,CH4)

20 MUTE4 I Mute 4

21 PVcc2 - Power Vcc (CH3,CH4)

22 SVcc - Signal Vcc

23 IN3 I CH3 Input

24 IN4 I CH4 Input

25 REF2 I REF2

26 IN5 I CH5 Input

27 MUTE3 I Mute 3

28 SW45 I Select Switch For 4,5CH

FAN8045G3

3

Internal Block Diagram

FAN8045G3

SW45

MUTE3

IN5

REF2

IN4

IN3

SVCC

28 27 26 25 24 23 22 21 20 19 18 17 16 15FIN

SW45 MUTE3

5K

20K

5K

20K

sw45

10K

tsd

monitor

SVCC

5K

20K

10K

GND

1 2 3 4 5 6 7 8 9 10 11 12 13 14FIN

REF1

IN1

IN2

OPIN+

OPIN-

OPOUT

GND

20K

20K

PVCC2

PVCC1

PVCC2

MUTE4

PVCC1

MUTE

12

MUTE4

GND

GND

MUTE12

GND

LEVEL SHIFT

LEVEL SHIFT

GND

DO3-

DO2-

DO3+

LEVEL SHIFT

LEVEL SHIFT

DO2+

DO4-

DO1-

DO4+

DO1+

4

FAN8045G3

Equivalent Circuits

BTL Driver Output SW45

SVCC PVCC

20K

30K

11 12

13 14

15 16

17 18

28

100K

100K

100K

100K

BTL Input(CH1,2) BTL Input(CH3,4)

SVCC

2

3

5K

2K

1K

2K

23

24

26

10K

1K 1K

SVCC

2K 2K

Mute Reference

20

27

9

50

50K

50K

1

25

50K

50K

5

Equivalent Circuits (Continued)

OP-AMP Input OP-AMP Output

FAN8045G3

SVCC

2K

4 5

1K

2K

2K

1K

2K

SVCC

6

6

Absolute Maximum Ratings ( Ta=25°C)

Parameter Symbol Value Unit

SVCC

Maximum Supply Voltage

PVCC1

PVCC2

Power Dissipation P

Operating Temperature T

Storge Temperature T

Maximum Output Current I

Notes:

1. When it is mounted on 70mm × 70mm × 1.6mm PCB.

2. Power dissipation decreases at the rate of 20mW/

3. Do not exceed PD and SOA.

Pd (mW)

3,000

°C in TA >25°C.

MAX

MAX

MAX

D

OPR

STG

OMAX

18 V

18 V

18 V

note1,2,3

2.5

−35 ~ +85 °C

−55 ~ +150 °C

1A

FAN8045G3

W

2,000

1,000

0

0 25 50 75 100 125 150 175

SOA

Ambient temperature, Ta [°C]

Recommended Operating Conditions ( Ta=25°C)

Parameter Symbol Min. Typ. Max. Unit

SVCC 4.5 - 14 V

Operating Supply Voltage

PVCC1 4.5 - SVCC V

PVCC2 4.5 - SVCC V

7

FAN8045G3

Electrical Characteristics

(SVCC = PV

Parameter Symbol Conditions Min. Typ. Max. Unit

Quiescent Circuit Current I

BTL DRIVER CIRCUIT (R

Output Offset Voltage(CH12) V

Output Offset Voltage(CH34) V

Output Offset Voltage(CH5) V

Maximum Output Voltage(CH12) V

Maximum Output Voltage(CH34) V

Close-loop Voltage Gain(CH12) A

Close-loop Voltage Gain(CH34) A

NORMAL OPAMP CIRCUIT(SV

Input Offset Voltage V

Input Bias Current I

High Level Output Voltage V

Low Level Output Voltage V

Output Sink Current I

Output Source Current I

Open Loop Voltage Gain G

Ripple Rejection Ratio

Slew Rate

Common Mode Rejection Ratio

TSD ON Voltage

MUTE AND OTHER FUNCTION CIRCUIT

Mute On Voltage V

Mute Off Voltage V

SW On Voltage V

SW Off Voltage V

Mute Low Level Sink Current IMTL VMUTE = 0V -15 0 15 uA

Mute High Level Sink Current IMTH VMUTE = 5V - 85 170 uA

SW45 Low Level Sink Current ISWL45 SW45 = 0V -15 0 15 uA

SW45 High Level Sink Current ISWH45 SW45 = 5V - 85 170 uA

REF1 Sink Current IRL REF1 = 1.65V - 52 104 uA

REF2 Sink Current IRH REF2 = 2.5V - 85 170 uA

= 12V, TA = 25°C,PV

CC2

note1

note1

note1

L=8Ω)

CC1

CC,PVCC2

note1

= 5V , Ref1= 1.65V ,Ref2 = 2.5V , RL = 8Ω)

CC

OOF1

OOF2

OOF3

OM1

OM2

VF

VF

Under no-load - 17 25 mA

VIN=1.65V -50 - +50 mV

VIN=1.65V -100 - +100 mV

VIN=2.5V -100 - +100 mV

PVcc1=5V, RL=8Ω 3.6 4.0 - V

PVcc2=12V, RL=24Ω 9.6 10.5 - V

VIN= 0.3V 15.5 17.5 19.5 dB

VIN= 0.3V 21.5 23.5 25.5 dB

=12V)

OF

B1

OH1

OL1

SINK

SOU1

VO1

f=1kHz, VIN= -75dB - 75 - dB

- -10 - +10 mV

- - - 300 nA

-11--V

---0.1V

-58-mA

-15-mA

RR1 f=120Hz, VIN= -20dB - 65 - dB

SR1 f=120Hz, 2Vp-p - 1 - V/us

CMRR1 f=1kHz, VIN= -20dB - 80 - dB

Vtsdon - - - 0.5 V

MON

MOFF

SWL

SWH

Pin9,20,27=Variation - - 0.5 V

Pin9,20,27=Variation 2 - - V

Pin28=Variation - - 0.5 V

Pin28=Variation 2 - - V

Note:

1.Guaranteed field. ( No EDS/ Final test . )

8

Application Information

1. MUTE,REF & SW45 Function

INPUT OUTPUT

FAN8045G3

SW45 MUTE12 MUTE3 MUTE4 REF1 REF2

H H H - H - ON ON IN5 ON ON ON

H H L - H - ON OFF IN5 ON ON ON

H H H - L - OFF OFF OFF OFF ON OFF

H L H - H - OFF ON OFF ON ON ON

H L L - H - OFFOFFOFFONONON

L - - L - - OFF OFF OFF OFF ON OFF

L - - H - H OFF OFF IN4 OFF ON OFF

L - - H - L OFF OFF OFF OFF ON OFF

2. TSD Function

• When the chip temperature reaches to 167°C by abnormal condition,
the TSD circuit is activated

• During TSD Function is activated, OP-AMP Output (pin 6) remains
below 0.5V. (TSD monitoring function).

• 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 63°C, the TSD circuit is
deactivated and the output drivers start to operate normally.

BTL

PRE-AMP

CH12 CH3 CH4 CH4 CH5

SVCC

I

Hysteresis

Ihys

REF

R1

R2

R3

Q0

Output driver
bias

OP

3. Notice

• If 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.

9

FAN8045G3

Typical Performance Characteristics

Total Cir c uit

Icc(mA)

<Vcc vs Icc1>

25

20

15

10

5

Temp=25OC

0

4.5 5.5 6.5 7.5 8.5 9.5 10.5 11.5 12.5 13.5 14.5

BTL Drive Part

V

)

Vom(

<Vcc vs Vom1>

14

12

10

8

6

4

2

0

4 5 6 7 8 9 10 11 12 13 14

Vin=0V
RL=8

Vom(V)

<Vcc vs Vom3>

14

12

10

8

6

4

2

0

4 5 6 7 8 9 10 11 12 13 14

Vin=0V
RL=24

Vcc(V)

Ω

Vcc(V)

Ω

Vcc(

V

Icc(mA)

<Temp vs Icc1>

25

20

15

10

5

0

-35 -25 -15 -5 5 15 25 35 45 55 65 75 85

Vom(V)

<Vcc vs Vom2>

14

12

10

8

6

4

2

0

4 5 6 7 8 9 10 11 12 13 14

Vom(V)

<Vcc vs Vom4>

14

12

10

8

6

4

2

0

4 5 6 7 8 9 10 11 12 13 14

)

SVc c=12V
PV cc2=12V
PV cc1=5V

Te mp (°C)

Vin=0V
RL=8

Vcc(

Vin=0V
RL= 24

Vcc(

Ω

V

)

Ω

V

)

10

Typical Performance Characteristics (Continued)

Ω

Ω

Ω

Ω

Avf(

Avf(

dB

)

dB

FAN8045G3

)

<Vcc vs Avf1>

26

24

22

20

18

16

14

12

10

4 5 6 7 8 9 10 11 12 13 14

Avf(

dB

)

Temp=25OC
Vin=0.3V
Fre g=1KHz
RL=8

<Vcc vs Avf3>

26

24

22

20

18

16

14

12

10

4 5 6 7 8 9 10 11 12 13 14

Temp=25OC
Vin=0.3V
Freg=1KHz
RL=24

Vcc(V)

Vcc(V)

<Vcc vs Avf2>

26

24

22

20

18

16

14

12

10

4 5 6 7 8 9 10 11 12 13 14

dB

Avf(

)

Temp=25OC
Vin=0.3V
Freg=1KHz
RL=8

Ω

<Vcc vs Avf4>

26

24

22

20

18

16

14

12

10

4 5 6 7 8 9 10 11 12 13 14

Temp=25OC
Vin=0.3V
Freg=1KHz
RL=24

Vcc(V)

Vcc(V)

Avf(

dB

)

<Temp vs Avf1>

24

22

20

18

16

14

12

10

8

-40-200 20406080

Vin=+0.3V

Vin=-0.3V

SVc c=12V
PV cc1=5V
PV cc2=12V
Freq=1KHz
RL=8

Te mp (°C)

Avf(

dB

)

<Temp vs Avf2>

24

22

20

18

16

14

12

10

8

-40-200 20406080

Vin=+0.3V

Vin=-0.3V

SVc c=12V
PV cc1=5V
PV cc2=12V
Freq=1KHz
RL=8

Ω

Te mp (°C)

11

FAN8045G3

Typical Performance Characteristics (Continued)

Avf(dB)

<Temp vs Avf3>

26

24

22

20

18

16

14

12

10

-40-200 20406080

Vin=+0.3V

Vin=-0.3V

SVc c=12V
PV cc1=5V
PV cc2=12V
Freq=1KHz
RL=24

Ω

Te mp (

OP-AMP Part

mA

Isink(

)

<Vcc vs Isink>

60

50

40

30

20

10

Avf(

dB

)

<Temp vs Avf4>

26

24

22

20

18

16

14

12

10

-40-200 20406080

°

C)

Isou(

mA

Vin=+0.3V

Vin=-0.3V

)

SVcc=12V
PVcc1=5V
PVcc2=12V
Freq=1KHz
RL=24

Ω

Te mp (°C)

<Vcc vs Isou>

10

8

6

4

2

0

4 5 6 7 8 9 10 11 12 13 14

Vcc(V)

Isink(

mA

)

<Temp vs Isink>

60

50

40

30

20

10

0

-40-200 20406080

Vcc(

V

)

0

4 5 6 7 8 9 10 11 12 13 14

Vcc(V)

Isou(mA)

<Temp vs Isou>

10

8

6

4

2

0

-40-200 20406080

Vcc(

V

)

12

Test Circuits

FAN8045G3

A A A A

A

28 27

SW45

MUTE3

GND

SW3

V

DO3-

A A

25 24 23 22 21 20 19 18 17 16 15

26

REF2

IN4

IN3

SVCC

IN5

FIN

A A

PVCC2

MUTE4

DO3+

SW4

V

DO4-

FAN8045G3

IN1

IN2

OPIN+

REF1

1 2 3 4 5 6 7 8 9 10 11 12 13 14

A A A

OPIN-

IN+ IN- OUT

OP-AMP

OPOUT

GND

FIN

PVCC1

MUTE12

GND

DO2-

SW2

DO2+

DO1-

V

V

SW1

DO4+

DO1+

OP-AMP

IN+ IN- OUT

SW6

v

SW7

SW8

SW9

13

FAN8045G3

Typical Application Circuit

Sled & Loading

Motor

Spindle

Motor

M

M

15

16

17

18

DO4+

DO4-

DO3+

DO3-

DO1+

DO1-

DO2+

DO2-

14

13

12

11

Focus

Actuator

Tracking
Actuator

0.1uF

12V

0.1uF

12V

19

20

21

22

23

24

25

26

27

28

GND

MUTE4

PVCC2

FIN

SVCC

IN3

IN4

REF2

IN5

MUTE3

SW45

MUTE12

PVCC1

FAN8045G3

OPOUT

OPIN-

OPIN+

GND

GND

IN2

IN1

REF1

10

9

5V

8

0.1uF

FIN

7

6

5

4

3

2

1

14

MUTE4

MICOM

SW45

VREF2

LOADING

SLED

SPINDLE

MUTE3

VREF1

FOCUS

MUTE12

TRACKING

SERVO

Package Dimension

FAN8045G3

28-SSOPH-375-SG2

15

FAN8045G3

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

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.

instructions for use provided in the labeling, can be
reasonably expected to result in a significant injury of the
user.

www.fairchildsemi.com

3/15/03 0.0m 001

 2003 Fairchild Semiconductor Corporation

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