Datasheet FAN8038B Datasheet (Fairchild Semiconductor)

FAN8038B(KA3038)

4-Channel Motor Drive IC

www.fairchildsemi.com

Features

• 4-CH H-Bridge Driver

• Built-in DC/DC Converter Controller Circuit

• Built-in Reset Circuit

• Built-in Battery Charging Circuit

• Built-in Voltage Drop Detector

• Built-in Thermal Shutdown Circuit

• Built-in General OP-AMP

• Low Power Consumption

• Built-in Power Controller Circuit

Description

FAN8038B is monolithic IC for portable CD play e r.

44-QFP-1010B

Typical application

• Portable Compact Disk Player (CDP)

• Portable Mini Disk Player (MD)

•Disc-Man

• Other Potable Compact Disk Media

©2002 Fairchild Semiconductor Corporation

Ordering Information

Device Package Operating Temp.

FAN8038B 44-QFP-1010B -35°C ~ +85°C

Rev. 1.0.3

FAN8038B(KA3038)

Pin Assignments

OVP

BATT

RSTOUT

DEDSET

BDSW

ERRO

ERRI

SCP

COSC

34353637383940414243

RST

33

32

31

30

29

CHGSET

DO1(-)

DO1(+)

DO2(-)

DO2(+)

EMP

FIL SGND EMPSET ADPVCC STOP START CLKIN PWM

44

1

2

3

4

5

DVCC

FAN8038B

6

7

8

9

28

27

26

25

PGND

DO3(+)

DO3(-)

DO4(+)

NC

OPIN(-)

10

11

12 13 14 15 16 17 18 19 20 21 22

SVCC1 OPOUT OPIN(+) SVCC2 VREF DI3 DI4 MUTE34

24

DO4(-)

23

BRAKE

DI2

MUTE2

DI1

2

Pin Definitions

Pin Number Pin Name Pin Function Description

1 OVP Battery Power Supply Mode
2 BATT Battery Power Supply
3 RSTOUT RSTOUT Detection Output
4 DEDSET DEDSET Time Setting
5 BDSW Booster Transistor Drive
6 ERRO Error Amp Output
7 ERRI Error Amp Input
8 SCP Short Circuit Protection Setting

9 COSC Triangular Wave Output
10 N.C No Connection
11 OPIN(-) OP-AMP Negative Input
12 SVCC1 Control Circuit Power Supply
13 OPOUT OP-AMP Output
14 OPIN(+) OP-AMP Positive Input
15 SVCC2 Pre-Drive Power Supply
16 VREF Reference Voltage
17 DI3 CH3 Control Signal Input
18 DI4 CH4 Control Signal Input
19 MUTE34 CH3, 4 Mute
20 DI2 CH2 Control Signal Input
21 MUTE2 CH2 Mute
22 DI1 CH1 Control Signal Input
23 BRAKE CH1 Brake
24 DO4(-) CH4 Negative Output
25 DO4(+) CH4 Positive Output
26 DO3(-) CH3 Negative Output
27 DO3(+) CH3 Positive Output
28 PGND Power Unit Power Ground
29 DO2(+) CH2 Positive Output
30 DO2(-) CH2 Negative Output
31 DO1(+) CH1 Positive Output
32 DO1(-) CH1 Negative Output
33 CHGSET Charge Current Setting
34 RST RSTOUT Inverting Output
35 EMP Empty Detection Output
36 DVCC H-Bridge Power Supply
37 PWM PWM Transistor Drive
38 CLKIN External Clock Input
39 START Boost DC/DC Converter Starting
40 STOP Boost DC/DC Converter Off
41 ADPVCC Charging Circuit Power Supply
42 EMPSET Empty Dection Level Converting
43 SGND Signal Ground
44 FIL PWM Phase Compensation

FAN8038B(KA3038)

3

FAN8038B(KA3038)

Internal Block Diagram

FIL SGND EMPSET ADPVCC

44

STOP

START CLKIN

PWM

DVCC

EMP

RST

34353637383940414243

OVP

BATT

RSTOUT

DEDSET

BDSW

ERRO

ERRI

SCP

COSC

NC

OPIN(-)

10

11

1

2

3

4

5

6

7

8

OVER

VOLTAGE

PROTECTION

9

TRIANGLE

NC

WAVE

SIGNAL VCC

STARTER

MAXIMUM

DETECTOIN

MUTE34

MUTE2

×

2

×

2

×

2

×

2

×

2

×

2

×

2

×

2

33

CHGSET

32

DO1(-)

31

DO1(+)

30

DO2(-)

29

DO2(+)

28

PGND

27

DO3(+)

DO3(-)

26

DO4(+)

25

24

DO4(-)

23

BRAKE

BRAKE

12 13 14 15 16 17 18 19 20 21 22

SVCC1 OPOUT OPIN(+) SVCC2

VREF

DI3 DI4

MUTE34

DI2

MUTE2

DI1

4

FAN8038B(KA3038)

Absolute Maximum Ratings (Ta = 25°C)

Parameter Symbol Value Unit

Maximum Supply Voltage V
Maximum Output Current I
Power Dissipation P
Operating Temperature T
Stroage Temperature T

CC

O

D
OPR
STG

13.2 V
500 mA

1.0 W

-35 ~ +85 °C

-55 ~ +150 °C

Recommended Operating Conditions (Ta = 25°C)

Parameter Symbol Min. Typ. Max. Unit

Charging Circuit Power Supply Voltage ADPVCC 3.0 4.5 8.0 V
Power Supply Voltage BATT 1.5 2.4 8.0 V
Control Circuit Power Supply Voltage SVCC 2.7 3.2 5.5 V
PRE-Driver V

CC

Output Voltage VM - PWM BATT V
Operating Temperature Ta -10 25 70 °C

SVCC2 2.7 3.2 5.5 V

5

FAN8038B(KA3038)

Electrical char ac teristics

(Ta=25°C, BATT=2.4V, SVCC1=SVCC2=3.2V, V

Parameter Symbol Conditions Min. Typ. Max. Unit
COMMON SECTION

BATT Stand-by Current I
BATT Supply Current (No Load) I
SVCC Supply Current (No Load) I
SVCC2 Supply Current (No Load) I

ADPVCC Supply Current
(No Load)

ST

BATT
SVCC1
SVCC2

I

ADPVCC

H-DRIVE PART

Voltage Gain CH1, 3, 4
CH2

Gain Error By Polarity ∆G
Input pin Resistance CH1, 3, 4

CH2
Maximum Output Voltage V
Saturation Voltage (Lower) V

Saturation Voltage (Upper) V
Input offset Voltage V
Output Offset Voltage CH1, 3, 4

CH2
DEAD Zone V
Brake1 On Voltage V
Brake1 Off Voltage V
MUTE2 On Voltage V
MUTE2 Off Voltage V
MUTE34 On Voltage V
MUTE34 Off Voltage V
VREF On Voltage V
VREF Off Voltage V
BRAKE1 Brake Current I

134

G

VC

G

VC

VC

R

DI1

R

DI2

OUT

SAT1
SAT2

IO

134

V

OO

V

OO

DB

M1ON

M1OFF

M2ON

M2OFF
M34ON

M34OFF

REFON

REFOFF

BRAKE

2

34

2

=1.6V, ADPVCC=0V, fCLKIN=88.2kHz)

REF

BATT=10.5V,SVCC1,
2=VREF=0V

--5µA

DVCC=0.45V, MUTE34=3.2V - 2.5 3.5 mA
DVCC=0.45V, MUTE34=3.2V,

ERRI=0V

-3.03.5mA
DVCC=0.45V, MUTE34=3.2V - 3.5 5.0 mA
ADPVCC=4.5V, ROUT=OPEN - 0.2 1.0 mA

-

12

21.51423.51624.5

--202dB
IN=1.7 & 1.8V
RL=8Ω, DVCC=BATT=4V,

IN=0 ~ 3.2V

11

6

7.5

1.9 2.1 - V

13

9

9

IO= -300mA, IN=0 & 3.2V - 240 400 mV
IO=300mA, IN=0 & 3.2V - 240 400 mV

--808mV
VREF=IN=1.6V

-70

-13000

70

130

--20020mV
DI1=1.8V 2.0 - - V
DI1=1.8V - - 0.8 V
DI2=1.8V 2.0 - - V
DI2=1.8V - - 0.8 V
DI3=DI4=1.8V - - 0.8 V
DI3=DI4=1.8V 2.0 - - V
INn=1.8V(N=1, 2, 3, 4) 1.2 - - V
INn=1.8V(N=1, 2, 3, 4) - - 0.8 V
Brake Current 4 7 10 mA

dB

KΩ

mV

*Granteed De sign Value

6

FAN8038B(KA3038)

Electrical Characteristics

(Continued)

Parameter Symbol Conditions Min. Typ. Max. Unit
PWM POWER SUPPLY DRIVING

PWM Sink Current I
*DVCC Level Shift Voltage V
DVCC Leak Current I
*PWM Amp Transfer Gain G

PWM

SHIF
DLK
PWM

DI1=2.1V 10 13 17 mA
DI1=1.8V, DVCC-OUT1F 0.35 0.45 0.55 V
DVCC=9V, SVCC1,2=BATT=0V - 0 5 µA
DI1=1.8V, DVCC=1.2V ~ 1.4V 1/60 1/50 1/40 1/kΩ

DC/DC CONVERTER
ERROR AMP

SVCC1 Pin Threshold Voltage V
ERRO Pin Output Voltage H V
ERRO Pin Output Voltage L V

S1TH

EOH

EOL

ERRI=0.7V, IO = -100µA1.41.6-V
ERRI=1.3V, IO = 100µA--0.3V

- 3.05 3.20 3.35 V

SHORT CIRCUIT PROTECTION

SCP Pin Voltage V
SCP Pin Current 1 I
SCP Pin Current 2 I
SCP Pin Current 3 I
*SCP Pin Impedance R
SCP Pin Threshold Voltage V
Over Voltage Protection Detect V

SCP
SCP1
SCP2
SCP3

SCP

SCPTH

OVP

ERRI=1.3V - 0 0.1 V
ERRI=0.7V 6 10 16 µA
ERRI=1.3V, OFF=0V 12 20 32 µA
ERRI=1.3V, BATT=9.5V 12 20 32 µA

- 175 220 265 kΩ
ERRI=0.7V, COSC=470PF 1.10 1.20 1.30 V
OVP Voltage 9.5 10 10.5 V

TRANSISTOR DRIVING

BDSW Pin Output Voltage 1H V

SW1H

BATT=COSC=1.5V
=SVCC2=0V, 10mA

0.78 0.98 1.13 V

COSC=0V, IO = -10mA,

BDSW Pin Output Voltage 2H V

SW2H

ERRI=0.7V

1.0 1.5 - V

SCP=0V
BDSW Pin Output Voltage 2L V
BDSW Pin Oscillating Reequency1 f
SW Pin Oscillating Reequency 2 f
BDSW Pin Oscillating Reequency 3 f

*BDSW Pin Minimum Pulse Width T

Pulse Duty Start D

MAX. Pulse Duty at Self-Running D
MAX. Pulse Duty at CLKIN

Synchronization

SW2L
SW1
SW2
SW3

SWMIN

SW1

SW2

D

SW3

CT=2V, IO=1-mA - 0.3 0.45 V

COSC=470pF, =SVCC2=0V 65 80 95 kHz

COSC=470pF, CLKIN=0V 60 70 82 kHz

COSC=470pF - 88.2 - kHz

COSC=470pF,

ERRO=0.5 → 0.7V

COSC=470PF,

SVSS1,SVCC2=0V

COSC=470pF, ERR0=0.8V,

CLKIN=0V

0.01 - 0.6 µs

40 50 60 %

50 60 70 %

ERR0=0.8V, COSC=470pF 45 55 65 %

*Granteed De sign Value

7

FAN8038B(KA3038)

Electrical Characteristics

(Continued)

Parameter Symbol Conditions Min. Typ. Max. Unit
DEAD TIME

*DEDSET Pin Impedance R
DEDSET Pin Output Voltage V

DEDSET
DEDSET

- 526578kΩ

- 0.78 0.88 0.98 V

INTERFACE

STOP Pin Threshold Voltage V
STOP Pin Bias Current I

START Pin On Threshold Voltage V

START Pin Off Threshold Voltage V
START Pin Bias Current I
CLKIN Pin Threshold Voltage H

CLKIN Pin Threshold Voltage L

V

V

CLKIN Pin Bias Current I

STOPTH

STOP

STATH1

STATH2
START

CLKINTH

H

CLKINTH

L

CLKIN

ERRI=1.3V 2.0 - - V
OFF=0V 75 95 115 µA
SVCC1,SVCC2=0V,

COSC=2V
SVCC1,SVCC2=0V,

COSC=2V

1.3 - - V

--2.1V

START=0V 13 16 19 µA

-2.0--V

---0.8V

CLKIN=3.2V - - 10 µA

START CURCUIT

Starter Switching Voltage V
Starter Switching Hysteresis Width V

Discharge Release Voltage V

SSV

SSHS

DIS

SVCC1,SVCC2=0V → 3.2V
START=0V

START=0V 130 200 300 mV

- 1.63 1.83 2.03 V

2.3 2.5 2.7 V

RESET CIRCUIT

*SVCC1 RESET Threshold Voltage
Ratio

RESET Detection Hysteresis Width V
RSTOUT Pin Output Voltage V
RSTOUT Pin Pull Up Resistance R
RST Pin Output Voltage 1 V

RST Pin Output Voltage 2 V
*RST Pin Pull Up Resistance R

R

RSTOTH

RSTHS

RSTO
RSTO

RST1

RST2

RST

- 859095%

- 25 50 100 mV

IO=1mA,
SVCC1,SVCC2=2.8V

- 72 90 108 kΩ

IO= -1mA,
SVCC1,SVCC2=2.8V

IO= -1mA,
SVCC1,SVCC2=0V

-7795113kΩ

--0.5V

2.0 - 2.4 V

2.0 - 2.4 V

*Granteed De sign Value

8

FAN8038B(KA3038)

Electrical Characteristics

(Continued)

Parameter Symbol Conditions Min. Typ. Max. Unit
OP-AMP

Input Bias Current I
Input Offset Voltage V
High Level Output Voltage V
Low Level Output Voltage V
Output Drive Current (Source) V

SOURCE

Output Drive Current (Sink) V

BIAS
OFOP

OHOP

OLOP

SINK

IN(+)=1.6V - - 300 nA
IN(+)=1.6V -5.5 0 5.5 mV
RL=OPEN 2.8 - - V
RL=OPEN - - 0.2 V
50Ω GND - -6.5 -3.0 mA

50Ω SVCC 0.4 0.7 - mA
*Open Loop Voltage Gain GVO VIN= -75dB, F=1kHz - 70 - dB
*Slew Rate SR - - 0.5 - V/µs

BATTERY CHARGING CURCUIT

CHGSET Pin Bias Voltage V
*CHGSET Pin Output Resistance R
EMPSET Pin Leak Current 1 I

EMPSET Pin Leak Current 2 I

EMPSET Pin Saturation Voltage V

CHGSET

CHGSET

EMPSET

EMPSET

EMPSET

ADPVCC=4.5V,

CHGSET=1.8kΩ

ADPVCC=4.5V 0.75 0.95 1.20 kΩ

ADPVCC=4.5V,

CHGSET=OPEN

ADPVCC = 0.6V,

CHGSET = 1.8kΩ

ADPVCC = 4.5V, IO = 300mA,

CHGSET = 0Ω

0.71 0.81 0.91 V

--1.0µA

--1.0µA

- 0.45 1.0 V

EMPTY DETECTION

EMP Detection Voltge 1 V
EMP Detection Voltge 2 V
EMP Detection Hysteresis Voltage 1 V
EMP Detection Hysteresis Voltage 2 V
EMP Pin Output Voltage V
EMP Pin Output Leak Current I
*OVP Pin Input Resistance R

OVP Pin Leak Current I

EMP_SET Pin Detection Voltage V
EMP_SET Pin Detection Current I

EMPSET

EMPSET

EMPT1
EMPT2
EMHS1
EMHS2

EMP

EMPLK

OVP

OVPLK

V

EMPSET

I

EMPSET

V

EMPSET

I

EMPSET

= 0V 2.1 2.2 2.3 V

= -2µA 1.7 1.8 1.9 V

= 0V 25 50 100 mV

= -2µA 25 50 100 mV
IO = 1mA, OVP = 1V - - 0.5 V
OVP = 2.4V - - 1.0 µA
V

EMPSET

SVCC1 = SVCC2 = 0V,
OVP = 4.5V

V

EMPSET

OVP = 2V

= 0V 17 23 27 kΩ

--1.0V

= BATT-

EMPSET

,

1.5 - - V

EMPSET -2 - - µA

*Granteed De sign Value

9

FAN8038B(KA3038)

Application Information

1. Mute Function

• When The BRAKE Pin is low is normal opration (high is CH1 mute on).

• When The Mute2 Pin is low is normal opration (high is CH2 mute on).

• When The Mute34 Pin is high is normal opration (low is CH3,4 mute on).

2. Vref Drop Mute (Figure 1)

• When the Voltage of the mute pin is above 1V, the mute circuit is stopped and the output circuit is.

VCC

CH Bias Block

VREF

Figure 1. VREF Drop MUTE Circuit Figure 2. TSD Circuit

Hysteresis

VCC

Q1

2

CH Bias Block

1

ircuit

ircuitircuit

3. Thermal Shutdown(Figure 2)

• If the chip temperature rises above 150°C, then the thermal shutdown (TSD) circuit is activated and the output circuit will

be mute.

4. H-bridge Driver (4-Channels)

Driver input resistance is 10kΩ of CH1, CH3, CH4 and input resistance of CH2 is 7.5kΩ.

Driver gain can obtain under -mentioned

CH1, 3, 4: GV 20

CH2 GV = 20log

R is External resistance.

10

log=

---------------------

11K R+

110K

---------------------- -

7.5K R+

55K

5. Switching Regulated Power Supply Drive

• This circuit detects a maximum output value of 4CH drivers and then generates PWM Signal.

• External Component is PNP-Tr, Coil, Schottky Diodeand Capacitor .

BUCK
CON.

HVCC

AMP

FAN8038B(KA3038)

HVCC

OSC

OUTPUT

LEVEL DET.

Figure 1. Switching Regulated Power Supply

6. DC/DC Converter Control Circuit

• Booster circuit needs External component. and the voltage() is defined as follows.

R1 Resistor1=
R2 Resistor2=
R3 30KΩ=
R4 30.5KΩ=

30k

30.5k

SVCC1 1.267

R1 R3⋅

--------------------- ­R1 R3+

---------------------------------------------------

×=

R2 R4⋅

--------------------- ­R2 R4+

12

R1

7

R2 R4⋅

--------------------- -+
R2 R4+

R2

Figure 2. Output Voltage

11

FAN8038B(KA3038)

• Short Circuit Protection function when GND and is short, ERRI become LOW and ERRO HIGH and it makes capacitor
charging. fanally AMP3 is OFF.(figure 5)

BATT

SVCC

1

AMP4

30K

30.5K

AMP1

AMP5

AMP3

SCP

1.267V

1.267V

DEDSET

COSC

Figure 3. DC/DC Converter Control Circuit

Switching off time depen on a capacitor of the SCP . and the equation is as follow.

V

TH

----------- -

tC

×= V

SCP

I

SCP

TH

1.25V, I

SPRT

10µA==()

• Max Duty can be controlled resistor. the equation is as follow.

tC

DEDSET

R×= R65KΩ=()

• Capacitor of the SCP terminal can control disable switiching time and it can be calculated by as follow equation.

V

TH

---------------

tC

• Over Voltage Protection BATT Voltage is over 9.7V charging SCP terminal Capacitor, it reach to V

×= V

SCP

I

STOP

TH

1.25V, I

20µA==()

OFF

SW terminal signal

TH

is OFF the equation is as follow

V

TH

tC

----------

×= V

SCP

I

HV

TH

1.25V, I

20µA==()

HV

• If Output Voltage of RSTOUT Circuit DC/DC Conver is over than 90%, RSTOUT terminal turn to HIGH and Hysteresis is
50mV. and RSTOUT stste is ON.

7. Empty Detecting Circuit.

EMPSET Detect Voltage Hysteresis Mode

LOW 2.2V 50mV Battery Mode

HIGH-Z 1.8V 50mV Adapter Mode

8. Battery Charging Circuit

• the battery charger circuit is s e parated from an y other block .

• TSD operate at 150°C. Hysteresis is 30°C

12

Typical Performance Cha ra cte ristic s

FAN8038B(KA3038)

S1TH

V

[V ]

ST

I

[mA]

Temp vs V

S1TH

3.20

3.18

3.15

3.13

3.10

3.08

3.05

-35 -20 -5 10 25 40 55 70 85

Temp [℃]

0.1

BATT vs I

0.05

0

-0.05

-0.1

1.5 2.5 3.5 4.5 5.5 6.5 7.5

ST

BATT[V ]

Temp vs Vovp

10.50

10.25

Vovp

10.00

[V ]

9.75

9.50

-35 -20 -5 10 25 40 55 70 85

Temp [℃]

BAT T vs IBATT

4

3

IBATT

2

[mA]

1

0

1.5 2.5 3.5 4.5 5.5 6.5 7.5

BAT T [V ]

EMPSET

V

[V ]

Temp vs VEMPSET

1.8

1.6

1.4

1.2

1

-35 -20 -5 10 25 40 55 70 85

Temp [℃]

ISINK

[mA]

Temp vs ISINK

1

0.9

0.8

0.7

0.6

0.5

0.4

-35 -20 -5 10 25 40 55 70 85

Temp [℃]

13

FAN8038B(KA3038)

Application Circuits

ADT VCC

220uF

220uF

TO MICOM

DC/DC

CONVERTER

104

8.2k

223

1uF

`

470p

Filter

OFF

100k 102

ON

33uF

47Ω

44

1

2

STARTER

MAXIMUM

DETECTOIN

3

4

5

6

7

8

OVER

VOLTAGE

PROTECT ION

9

TRIANGLE

10

NC

WAVE

SIGNAL VCC

11

MUTE34

12 13 14 15 16 17 18 19 20 21 22

TO MICOM

0.1uF

220uF

34353637383940414243

CHG SETTING RES

33

32

M

31

30

29

28

27

26

25

24

23

SLED

MOTOR

M

SPINDLE

MOTOR

TRK

ACTUATOR

FOC

ACTUATOR

FROM MICOM

0.1uF

MUTE2

2

×

× 2

×

2

×

2

×

2

×

2

×

2

×

2

BRAKE1

14

FROM MICOM

SERVO

FROM MICOM

FAN8038B(KA3038)

15

FAN8038B(KA3038)

DISCLAIMER

FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURT HER NOTICE TO ANY
PRODUCTS HEREI N TO IMPROVE RELIABILITY, FUNCTIO N OR DESIGN. FAIRCH IL D 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 IT S PATENT RIGHTS, NOR THE RIGHTS OF OTHE RS.

LIFE SUPPORT POL I CY

FAIRCHILD’S PR ODUCTS ARE NOT AUTH ORIZED FOR USE AS C RITICAL COMPONENT S IN LIFE SUPPORT DE VICES
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 sy stem whose fai lure to perform can be
reasonably expec ted to cause the failur e of the life support
device or system, or to affect its safety or effec t iv ene ss .

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

www.fairchildsemi.com

9/6/02 0.0m 001

 2002 Fairchild Semiconductor Corporation

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