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Электронный компонент: FAN8038

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2002 Fairchild Semiconductor Corporation
www.fairchildsemi.com
Rev. 1.0.3
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 player.
44-QFP-1010B
Typical application
Portable Compact Disk Player (CDP)
Portable Mini Disk Player (MD)
Disc-Man
Other Potable Compact Disk Media
Ordering Information
Device
Package
Operating Temp.
FAN8038B 44-QFP-1010B
-35
C ~ +85
C
FAN8038B(KA3038)
4-Channel Motor Drive IC
FAN8038B(KA3038)
2
Pin Assignments
44
1
2
3
4
5
6
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
41
42
43
7
FIL
SGND EMPSET ADPVCC
STOP
START
CLKIN
PWM
DVCC
EMP
OVP
BATT
RSTOUT
DEDSET
BDSW
ERRO
ERRI
SCP
COSC
NC
OPIN(-)
SVCC1
OPOUT
OPIN(+) SVCC2
VREF
DI3
DI4
MUTE34
DI2
MUTE2
DI1
CHGSET
DO1(-)
DO1(+)
PGND
DO3(+)
DO3(-)
DO4(+)
DO4(-)
BRAKE
DO2(-)
DO2(+)
RST
FAN8038B
FAN8038B(KA3038)
3
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)
4
Internal Block Diagram
44
1
2
3
4
5
6
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
41
42
43
7
STARTER
MAXIMUM
DETECTOIN
2
2
2
2
2
2
2
2
MUTE2
BR
A
K
E
MUTE34
NC
SIGNAL VCC
OVER
VOLTAGE
PROTECTION
TRIANGLE
WAVE
FIL
SGND
EMPSET ADPVCC
STOP
START
CLKIN
PWM
DVCC
EMP
OVP
BATT
RSTOUT
DEDSET
BDSW
ERRO
ERRI
SCP
COSC
NC
OPIN(-)
SVCC1
OPOUT OPIN(+)
SVCC2
VREF
DI3
DI4
MUTE34
DI2
MUTE2
DI1
CHGSET
DO1(-)
DO1(+)
PGND
DO3(+)
DO3(-)
DO4(+)
DO4(-)
BRAKE
DO2(-)
DO2(+)
RST
FAN8038B(KA3038)
5
Absolute Maximum Ratings (Ta = 25
C)
Recommended Operating Conditions (Ta = 25
C)
Parameter
Symbol
Value
Unit
Maximum Supply Voltage
V
CC
13.2
V
Maximum Output Current
I
O
500
mA
Power Dissipation
P
D
1.0
W
Operating Temperature
T
OPR
-35 ~ +85
C
Stroage Temperature
T
STG
-55 ~ +150
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
SVCC2
2.7
3.2
5.5
V
Output Voltage
VM
-
PWM
BATT
V
Operating Temperature
Ta
-10
25
70
C
FAN8038B(KA3038)
6
Electrical characteristics
(Ta=25
C, BATT=2.4V, SV
CC
1=SV
CC
2=3.2V, V
REF
=1.6V, ADPV
CC
=0V, fCLKIN=88.2kHz)
*Granteed Design Value
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Unit
COMMON SECTION
BATT Stand-by Current
I
ST
BATT=10.5V,SVCC1,
2=VREF=0V
-
-
5
A
BATT Supply Current (No Load)
I
BATT
DVCC=0.45V, MUTE34=3.2V
-
2.5
3.5
mA
SVCC Supply Current (No Load)
I
SVCC1
DVCC=0.45V, MUTE34=3.2V,
ERRI=0V
-
3.0
3.5
mA
SVCC2 Supply Current (No Load)
I
SVCC2
DVCC=0.45V, MUTE34=3.2V
-
3.5
5.0
mA
ADPVCC Supply Current
(No Load)
I
ADPVCC
ADPVCC=4.5V, ROUT=OPEN
-
0.2
1.0
mA
H-DRIVE PART
Voltage Gain CH1, 3, 4
CH2
G
VC
134
G
VC
2
-
12
21.5
14
23.5
16
24.5
dB
Gain Error By Polarity
G
VC
-
-2
0
2
dB
Input pin Resistance CH1, 3, 4
CH2
R
DI1
34
R
DI2
IN=1.7 & 1.8V
9
6
11
7.5
13
9
K
Maximum Output Voltage
V
OUT
RL=8
, DVCC=BATT=4V,
IN=0 ~ 3.2V
1.9
2.1
-
V
Saturation Voltage (Lower)
V
SAT1
IO= -300mA, IN=0 & 3.2V
-
240
400
mV
Saturation Voltage (Upper)
V
SAT2
IO=300mA, IN=0 & 3.2V
-
240
400
mV
Input offset Voltage
V
IO
-
-8
0
8
mV
Output Offset Voltage CH1, 3, 4
CH2
V
OO
134
V
OO
2
VREF=IN=1.6V
-70
-130
0
0
70
130
mV
DEAD Zone
V
DB
-
-20
0
20
mV
Brake1 On Voltage
V
M1ON
DI1=1.8V
2.0
-
-
V
Brake1 Off Voltage
V
M1OFF
DI1=1.8V
-
-
0.8
V
MUTE2 On Voltage
V
M2ON
DI2=1.8V
2.0
-
-
V
MUTE2 Off Voltage
V
M2OFF
DI2=1.8V
-
-
0.8
V
MUTE34 On Voltage
V
M34ON
DI3=DI4=1.8V
-
-
0.8
V
MUTE34 Off Voltage
V
M34OFF
DI3=DI4=1.8V
2.0
-
-
V
VREF On Voltage
V
REFON
INn=1.8V(N=1, 2, 3, 4)
1.2
-
-
V
VREF Off Voltage
V
REFOFF
INn=1.8V(N=1, 2, 3, 4)
-
-
0.8
V
BRAKE1 Brake Current
I
BRAKE
Brake Current
4
7
10
mA
FAN8038B(KA3038)
7
Electrical Characteristics
(Continued)
*Granteed Design Value
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Unit
PWM POWER SUPPLY DRIVING
PWM Sink Current
I
PWM
DI1=2.1V
10
13
17
mA
*DVCC Level Shift Voltage
V
SHIF
DI1=1.8V, DVCC-OUT1F
0.35
0.45
0.55
V
DVCC Leak Current
I
DLK
DVCC=9V, SVCC1,2=BATT=0V
-
0
5
A
*PWM Amp Transfer Gain
G
PWM
DI1=1.8V, DVCC=1.2V ~ 1.4V
1/60
1/50
1/40
1/k
DC/DC CONVERTER
ERROR AMP
SVCC1 Pin Threshold Voltage
V
S1TH
-
3.05
3.20
3.35
V
ERRO Pin Output Voltage H
V
EOH
ERRI=0.7V, IO = -100
A
1.4
1.6
-
V
ERRO Pin Output Voltage L
V
EOL
ERRI=1.3V, IO = 100
A
-
-
0.3
V
SHORT CIRCUIT PROTECTION
SCP Pin Voltage
V
SCP
ERRI=1.3V
-
0
0.1
V
SCP Pin Current 1
I
SCP1
ERRI=0.7V
6
10
16
A
SCP Pin Current 2
I
SCP2
ERRI=1.3V, OFF=0V
12
20
32
A
SCP Pin Current 3
I
SCP3
ERRI=1.3V, BATT=9.5V
12
20
32
A
*SCP Pin Impedance
R
SCP
-
175
220
265
k
SCP Pin Threshold Voltage
V
SCPTH
ERRI=0.7V, COSC=470PF
1.10
1.20
1.30
V
Over Voltage Protection Detect
V
OVP
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
BDSW Pin Output Voltage 2H
V
SW2H
COSC=0V, I
O
= -10mA,
ERRI=0.7V
SCP=0V
1.0
1.5
-
V
BDSW Pin Output Voltage 2L
V
SW2L
CT=2V, IO=1-mA
-
0.3
0.45
V
BDSW Pin Oscillating Reequency1
f
SW1
COSC=470pF, =SVCC2=0V
65
80
95
kHz
SW Pin Oscillating Reequency 2
f
SW2
COSC=470pF, CLKIN=0V
60
70
82
kHz
BDSW Pin Oscillating Reequency 3
f
SW3
COSC=470pF
-
88.2
-
kHz
*BDSW Pin Minimum Pulse Width T
SWMIN
COSC=470pF,
ERRO=0.5
0.7V
0.01
-
0.6
s
Pulse Duty Start
D
SW1
COSC=470PF,
SVSS1,SVCC2=0V
40
50
60
%
MAX. Pulse Duty at Self-Running
D
SW2
COSC=470pF, ERR0=0.8V,
CLKIN=0V
50
60
70
%
MAX. Pulse Duty at CLKIN
Synchronization
D
SW3
ERR0=0.8V, COSC=470pF
45
55
65
%
FAN8038B(KA3038)
8
Electrical Characteristics
(Continued)
*Granteed Design Value
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Unit
DEAD TIME
*DEDSET Pin Impedance
R
DEDSET
-
52
65
78
k
DEDSET Pin Output Voltage
V
DEDSET
-
0.78
0.88
0.98
V
INTERFACE
STOP Pin Threshold Voltage
V
STOPTH
ERRI=1.3V
2.0
-
-
V
STOP Pin Bias Current
I
STOP
OFF=0V
75
95
115
A
START Pin On Threshold Voltage
V
STATH1
SVCC1,SVCC2=0V,
COSC=2V
1.3
-
-
V
START Pin Off Threshold Voltage
V
STATH2
SVCC1,SVCC2=0V,
COSC=2V
-
-
2.1
V
START Pin Bias Current
I
START
START=0V
13
16
19
A
CLKIN Pin Threshold Voltage H
V
CLKINTH
H
-
2.0
-
-
V
CLKIN Pin Threshold Voltage L
V
CLKINTH
L
-
-
-
0.8
V
CLKIN Pin Bias Current
I
CLKIN
CLKIN=3.2V
-
-
10
A
START CURCUIT
Starter Switching Voltage
V
SSV
SVCC1,SVCC2=0V
3.2V
START=0V
2.3
2.5
2.7
V
Starter Switching Hysteresis Width
V
SSHS
START=0V
130
200
300
mV
Discharge Release Voltage
V
DIS
-
1.63
1.83
2.03
V
RESET CIRCUIT
*SVCC1 RESET Threshold Voltage
Ratio
R
RSTOTH
-
85
90
95
%
RESET Detection Hysteresis Width
V
RSTHS
-
25
50
100
mV
RSTOUT Pin Output Voltage
V
RSTO
IO=1mA,
SVCC1,SVCC2=2.8V
-
-
0.5
V
RSTOUT Pin Pull Up Resistance
R
RSTO
-
72
90
108
k
RST Pin Output Voltage 1
V
RST1
IO= -1mA,
SVCC1,SVCC2=2.8V
2.0
-
2.4
V
RST Pin Output Voltage 2
V
RST2
IO= -1mA,
SVCC1,SVCC2=0V
2.0
-
2.4
V
*RST Pin Pull Up Resistance
R
RST
-
77
95
113
k
FAN8038B(KA3038)
9
Electrical Characteristics
(Continued)
*Granteed Design Value
Parameter
Symbol
Conditions
Min.
Typ. Max.
Unit
OP-AMP
Input Bias Current
I
BIAS
IN(+)=1.6V
-
-
300
nA
Input Offset Voltage
V
OFOP
IN(+)=1.6V
-5.5
0
5.5
mV
High Level Output Voltage
V
OHOP
RL=OPEN
2.8
-
-
V
Low Level Output Voltage
V
OLOP
RL=OPEN
-
-
0.2
V
Output Drive Current (Source)
V
SOURCE
50
GND
-
-6.5
-3.0
mA
Output Drive Current (Sink)
V
SINK
50
SVCC
0.4
0.7
-
mA
*Open Loop Voltage Gain
GVO
VIN= -75dB, F=1kHz
-
70
-
dB
*Slew Rate
SR
-
-
0.5
-
V/
s
BATTERY CHARGING CURCUIT
CHGSET Pin Bias Voltage
V
CHGSET
ADPVCC=4.5V,
CHGSET=1.8k
0.71
0.81
0.91
V
*CHGSET Pin Output Resistance
R
CHGSET
ADPVCC=4.5V
0.75
0.95
1.20
k
EMPSET Pin Leak Current 1
I
EMPSET
ADPVCC=4.5V,
CHGSET=OPEN
-
-
1.0
A
EMPSET Pin Leak Current 2
I
EMPSET
ADPVCC = 0.6V,
CHGSET = 1.8k
-
-
1.0
A
EMPSET Pin Saturation Voltage
V
EMPSET
ADPVCC = 4.5V, I
O
= 300mA,
CHGSET = 0
-
0.45
1.0
V
EMPTY DETECTION
EMP Detection Voltge 1
V
EMPT1
V
EMPSET
= 0V
2.1
2.2
2.3
V
EMP Detection Voltge 2
V
EMPT2
I
EMPSET
= -2
A
1.7
1.8
1.9
V
EMP Detection Hysteresis Voltage 1
V
EMHS1
V
EMPSET
= 0V
25
50
100
mV
EMP Detection Hysteresis Voltage 2
V
EMHS2
I
EMPSET
= -2
A
25
50
100
mV
EMP Pin Output Voltage
V
EMP
I
O
= 1mA, OVP = 1V
-
-
0.5
V
EMP Pin Output Leak Current
I
EMPLK
OVP = 2.4V
-
-
1.0
A
*OVP Pin Input Resistance
R
OVP
V
EMPSET
= 0V
17
23
27
k
OVP Pin Leak Current
I
OVPLK
SVCC1 = SVCC2 = 0V,
OVP = 4.5V
-
-
1.0
V
EMP_SET Pin Detection Voltage
V
EMPSET
V
EMPSET
= BATT-
EMPSET
,
OVP = 2V
1.5
-
-
V
EMP_SET Pin Detection Current
I
EMPSET
EMPSET
-2
-
-
A
FAN8038B(KA3038)
10
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.
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 10k
of CH1, CH3, CH4 and input resistance of CH2 is 7.5k
.
Driver gain can obtain under -mentioned
R is External resistance.
CH Bias Block
VCC
VREF
CH Bias Block
VCC
Hysteresis
Q1
1
2
CH1, 3, 4:
GV
20
55K
11K R
+
---------------------
log
=
CH2
GV = 20log 110K
7.5K R
+
-----------------------
Figure 1. VREF Drop MUTE Circuit
Figure 2. TSD C
ircuit
ircuit
ircuit
ircuit
FAN8038B(KA3038)
11
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 .
Figure 1. Switching Regulated Power Supply
6. DC/DC Converter Control Circuit
Booster circuit needs External component. and the voltage() is defined as follows.
Figure 2. Output Voltage
AMP
OSC
HVCC
BUCK
CON.
LEVEL DET.
OUTPUT
HVCC
SVCC1
1.267
R1 R3
R1 R3
+
----------------------
R2 R4
R2 R4
+
----------------------
+
R2 R4
R2 R4
+
----------------------
---------------------------------------------------
=
R1
Resistor1
=
R2
Resistor2
=
R3
30K
=
R4
30.5K
=
12
7
30k
30.5k
R1
R2
FAN8038B(KA3038)
12
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)
Figure 3. DC/DC Converter Control Circuit
Switching off time depen on a capacitor of the SCP . and the equation is as follow.
Max Duty can be controlled resistor. the equation is as follow.
Capacitor of the SCP terminal can control disable switiching time and it can be calculated by as follow equation.
Over Voltage Protection BATT Voltage is over 9.7V charging SCP terminal Capacitor, it reach to V
TH
SW terminal signal
is OFF the equation is as follow
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.
8. Battery Charging Circuit
the battery charger circuit is separated from any other block .
TSD operate at 150
C. Hysteresis is 30
C
EMPSET
Detect Voltage
Hysteresis
Mode
LOW
2.2V
50mV
Battery Mode
HIGH-Z
1.8V
50mV
Adapter Mode
AMP1
30.5K
30K
AMP4
1.267V
1.267V
SVCC
1
DEDSET
COSC
SCP
BATT
AMP3
AMP5
t
C
SCP
V
TH
I
SCP
------------
=
V
TH
1.25V, I
SPRT
10
A
=
=
(
)
t
C
DEDSET
R
=
R
65K
=
(
)
t
C
SCP
V
TH
I
STOP
---------------
=
V
TH
1.25V, I
OFF
20
A
=
=
(
)
t
C
SCP
V
TH
I
HV
----------
=
V
TH
1.25V, I
HV
20
A
=
=
(
)
FAN8038B(KA3038)
13
Typical Performance Characteristics
Temp vs V ovp
9.50
9.75
10.00
10.25
10.50
-35 -20 -5
10
25
40
55
70
85
Temp[]
V ovp
[V ]
BATT vs IBATT
0
1
2
3
4
1.5
2.5
3.5
4.5
5.5
6.5
7.5
BATT[V ]
IBATT
[mA]
BATT vs I
ST
-0.1
-0.05
0
0.05
0.1
1.5
2.5
3.5
4.5
5.5
6.5
7.5
BATT[V ]
I
ST
[mA]
Temp vs V
S1TH
3.05
3.08
3.10
3.13
3.15
3.18
3.20
-35 -20 -5 10 25 40 55 70 85
Temp[]
V
S1TH
[V ]
Temp vs ISINK
0.4
0.5
0.6
0.7
0.8
0.9
1
-35 -20
-5
10
25
40
55
70
85
Temp[]
ISINK
[mA]
Temp vs V EMPSET
1
1.2
1.4
1.6
1.8
-35 -20 -5
10
25
40
55
70
85
Temp[]
V
EMPSET
[V ]
FAN8038B(KA3038)
14
Application Circuits
M
M
DC/DC
CONVERTER
Filter
44
1
2
3
4
5
6
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
41
42
43
7
STARTER
MAXIMUM
DETECTOIN
2
2
2
2
2
2
2
2
MUTE2
BR
A
K
E
1
MUTE34
NC
SIGNAL VCC
OVER
VOLTAGE
PROTECTION
TRIANGLE
WAVE
220uF
220uF
104
8.2k
223
1uF
`
0.1uF
220u
F
47
100k
102
470p
0.1uF
FOC
ACTUATOR
TRK
ACTUATOR
SPINDLE
MOTOR
SLED
MOTOR
TO MICOM
CHG SETTING RES
SERVO
FR
O
M
M
I
CO
M
FR
O
M
M
I
CO
M
FROM MICOM
TO MICOM
ON
OFF
ADT VCC
33uF
FAN8038B(KA3038)
15
FAN8038B(KA3038)
9/6/02 0.0m 001
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2002 Fairchild Semiconductor Corporation
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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:
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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.
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
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