UTCTDA2003 [UTC]
10W CAR RADIO AUDIO AMPLIFIER; 10W汽车收音机音频放大器
| 型号： | UTCTDA2003 |
| 厂家： | 
Unisonic Technologies |
| 描述： | 10W CAR RADIO AUDIO AMPLIFIER |
| 文件： | 总8页 (文件大小：75K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UTC TDA2003 LINEAR INTEGRATED CIRCUIT
10W CAR RADIO AUDIO AMPLIFIER
DESCRIPTION
The UTC TDA2003 is a monolithic audio power amplifier
integrated circuit.
1
FEATURES
*Very low external component required.
*High current output ( up to 3 A).
*Low harmonic and crossover distortion.
*Built-in Over temperature protection.
*Short circuit protection between all pins.
TO-220B
PIN CONFIGURATIONS
1
2
3
4
5
Non inverting input
Inverting input
Ground
Output
Supply Voltage
BLOCK DIAGRAM
5
4
3
1
2
UTC UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R107-002,A
UTC TDA2003 LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS(Ta=25°C)
PARAMETER
SYMBOL
VALUE
40
UNIT
V
Peak Supply Voltage
Vs
Vs
Vs
Io
DC Supply Voltage
28
V
Operating Supply Voltage
Output Peak Current (repetitive)
Output Peak Current ( non repetitive)
Power Dissipation at Tcase = 90°C
Storage Temperature
18
V
3.5
A
Io
4.5
A
Ptot
Tstg
Tj
20
W
°C
°C
-40~+150
-40~+150
Junction Temperature
ELECTRICAL CHARACTERISTICS(Refer to the test circuit,Vs=+-16V,Ta=25°C)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
DC CHARACTERISTICS
Supply Voltage
Quiescent Output
Voltage
Vs
8
18
V
V
Vo
6.1
6.9
44
7.7
Quiescent Drain
Current
Id
50
mA
W
AC CHARACTERISTICS
d=10%,f=1kHz
RL=8W
RL=2W
RL=3.2W
5.5
9
6
Output Power
Po
10
7.5
12
RL=1.6W
f=1kHz
Po=0.5W,RL=4W
Po=6W,RL=4W
Po=0.5W,RL=2W
Po=10W,RL=2W
14
55
mV
mV
mV
mV
mV
Input Sensitivity
Vi
10
50
Input Saturation
Voltage
Vi(rms)
B
300
Frequency
Response(-3dB)
Po=1W,RL=4W
40
70
15000
Hz
f=1kHz
Distortion
D
Po=0.05 to 4.5W ,RL=4W
Po=0.05 to 7.5W ,RL=2W
open loop,f=1kHz
0.15
0.15
150
%
Input
Ri
kW
Resistance(Pin 1)
Input Noise Current
Input Noise Voltage
Open Loop
e
60
1
200
5
pA
mV
dB
dB
N
I
N
Gvo
f=1kHz
f=10kHz
f=1kHz
RL=4W
80
60
Voltage Gain
Closed Loop
Gvc
Voltage Gain
39.3
40
40.3
dB
UTC UNISONIC TECHNOLOGIES CO., LTD.
2
QW-R107-002,A
UTC TDA2003 LINEAR INTEGRATED CIRCUIT
PARAMETER
SYMBOL
TEST CONDITIONS
f=1kHz
MIN
TYP
MAX
UNIT
¦
Ç
Efficiency
Po=6W,RL=4W
Po=10W,RL=2W
69
65
%
%
Supply Voltage
Rejection
SVR
f=100Hz,Vripple=0.5V
Rg=10kW,RL=4W
30
36
dB
TEST CIRCUIT
+Vs
C3
100nF
Vi
1
C4
1000 F
m
5
UTC
TDA2003
C1
1 F
4
m
2
3
R1
220W
R3
1W
RL
Rx
39W
C2
470 mF
R2
2.2W
Cx
39nF
Rx=20*R2
Cx=1/(2
p
B*R1)
DC Test Circuit
AC Test Circuit
+Vs
+Vs
C3
100nF
mA
Vi
Vi
1
2
1
C4
5
5
1000 mF
1000
mF
C1
1 mF
UTC
TDA2003
UTC
TDA2003
4
4
R1
220
2
3
3
R1
W
220
W
R3
RL
RL
1
W
Rx
C2
R2
2.2
470 mF
39
W
V
470
F
m
R2
2.2
W
W
Cx
39nF
Rx=20*R2
Cx=1/(2
p
B*R1)
UTC UNISONIC TECHNOLOGIES CO., LTD.
3
QW-R107-002,A
UTC TDA2003 LINEAR INTEGRATED CIRCUIT
TYPICAL PERFORMANCE CHARACTERISTICS
Fig.1 Quiescent output voltage
vs.Supply voltage
Fig.2 Quiescent drain current
vs.Supply voltage
Fig.3 Output power vs.Supply
voltage
Po
(W)
Vo(V)
8
Id(mA)
80
20
Gv=40dB
f=1kHz
R=1.6W
R=2W
d=10%
6
4
60
15
40
20
0
10
5
R=3.2W
R=4
W
2
0
0
8
10
12
14
16
8
10
12
14
16
0
5
10
15
20
Vs(V)
Vs(V)
Vs(V)
Fig.4 output power vs.load
resistance
Fig.5 Gain vs. Input sensitivity
Fig.6 Gain vs. Input sensitivity
58
58
Po
(W)
54
52
48
44
54
52
48
44
Gv=40dB
f=1kHz
RL=2W
Gv=40dB
f=1kHz
RL=4W
Gv=40dB
f=1kHz
d=10%
16
Vs=16V
Vs=14.4V
12
8
40
36
32
40
36
32
Vs=12V
Vs=8V
4
0
28
24
28
24
20
20
0
2
4
6
8
10
100
1000
10
100
1000
Vi(rms)
Vi(rms)
RL(W)
Fig.7 Distortion vs.
output power
Fig.8 Distortion vs.
frequency
Fig.9 Supply voltage rejection
vs. voltage gain
100
SVR
(dB)
d(%)
0.8
R=2
W
d(%)
R=3.2W
fripple=100Hz
Vs=14,4V
RL=2.2W
Gv=40dB
Vs=14.4V
RL=2W/4W
Gv=40dB
10 f=1kHz
Vs=14.4V
-10
Rg=10kW
R=4W
R=1.6W
0.6
-20
-30
1
0.1
Po=2.5W
0.4
0.2
-40
-50
Po=50mW
0.01
0
1
2
3
4
10
0.1
1
10
100
30
35
40
45
50
55
10
10
10
Po(W)
Gv(dB)
Frequency (Hz)
UTC UNISONIC TECHNOLOGIES CO., LTD.
4
QW-R107-002,A
UTC TDA2003 LINEAR INTEGRATED CIRCUIT
Fig. 11 Power dissipation
and efficiency vs. output
power(Rl=4W)
Fig. 12 Power dissipation
and efficiency vs. output
power(Rl=2W)
Fig. 10 Supply voltage
rejection vs.frequency
¦
(%)
Ç
Ptot
(W)
Ptot
(W)
h
(%)
SVR
(dB)
Vs=14.4V
Vripple=0.5V
Gv=40dB
f=1kHz
h
Vs=14.4V
Gv=40dB
f=1kHz
80
0
8
6
4
8
6
4
80
Rg=10k
W
Vs=14.4V
Gv=40dB
f=1kHz
-20
-40
60
40
60
40
R2=22
R2=1
W
Ptot
W
-60
-80
20
0
2
0
2
0
20
0
2
3
4
10
5
0
2
4
6
8
0
2
4
6
8
10
10
10
frequency(Hz)10
Po(W)
Po(W)
Fig. 15 Typical values of
Fig. 13 Maximum Power
dissipation and supply
voltage(sine wave operation)
Fig. 14 Maximum allowable
dissipation and ambient
temperature
capacitor(Cx) for different
values of frequency
response
100
Ptot
(W)
Ptot
(W)
Cx
(nF)
infinite heatsink
20
20
15
B=10kHz
B=15kHz
15
10
B=20kHz
RL=1.6
RL=2
W
10
5
10
5
W
¢
X
10 C/W
RL=3.2
RL=4
W
R2=2.2W
W
¢
X
30 C/W
0
0
1
0
5
10
15
20
0
50
100
150
200
Tamb( C)
36
40
44
48
Vs(V)
Gv(dB)
¢
X
APPLICATION CIRCUIT
+Vs
C3
100nF
Vi
1
C4
1000
5
mF
C1
1 mF
UTC
TDA2003
4
2
3
R1
220
W
R3
1W
RL
Rx
39W
C2
470 mF
R2
2.2
W
Cx
39nF
Rx=20*R2
Cx=1/(2pB*R1)
Fig 16 Typical Application Circuit
UTC UNISONIC TECHNOLOGIES CO., LTD.
5
QW-R107-002,A
UTC TDA2003 LINEAR INTEGRATED CIRCUIT
Vs=14.4V
m
0.1 F
W
1
m
F
m
F
2.2
2.2
1
2
5
5
UTC
TDA2003
1
2
UTC
4
4
TDA2003
RL=4W
200W 430W
3
3
C3
C4
m
F
m
F
15
10
W
16
W
16
Fig.18
20W Bridge Configuration Application
The Values of the capacitors C3 and C4 are different to optimize the SVR(Typ. 40dB)
Vs=14.4V
m
F
m
F
0.1
0.1
1
2
5
UTC
TDA2003
5
UTC
TDA2003
1
2
W
RL=4
4
4
3
3
C3
15 mF
620W
1nF
Fig.20
Low Cost Bridge Configuration Application Circuit(Po=18W)
UTC UNISONIC TECHNOLOGIES CO., LTD.
6
QW-R107-002,A
UTC TDA2003 LINEAR INTEGRATED CIRCUIT
BUILT-IN PROTECTION SYSTEMS
LOAD DUMP VOLTAGE SURGE
The UTC TDA2003 has a circuit which enables it to withstand a volt. CHARACT age pulse train, on pin 5, of the type
shown in Fig. 23.
If the supply voltage peaks to more than 40V, then an LC filter must be inserted between the supply and pin 5, in
order to assure that the pulses at pin 5 will be head within the limits shown in Fig.22.
A suggested LC network is shown in Fig.23.With this network, a train of pulses with amplitude up to 120V and width of
2ms can be applied at point A. This type of protection is ON when the supply voltage(pulsed or DC) exceeds 18V.For
this reason the maximum operating supply voltage is 18V.
t1=50ms
Vs
(V)
40
A
B
2mH
From
Supply
Voltage
To
Pin 5
m
3000
16V
F
14.4
t
t2=1000ms
SHORT CIRCUIT (AC and DC Conditions)
The UTC TDA2003 can withstand a permanent short-circuit on the output for a supply voltage up to 16V.
POLARITY INVERSION
High current(up to 5A) can be handled by the device with no damage for a longer period than the blow-out time of a
quick 1A fuse(normally connected in series with the supply).
The feature is added to avoid destruction if, during fitting to the car, a mistake on connection of the supply is made.
OPEN GROUND
When the radio is in the ON condition and the ground is accidentally opened, a standard audio amplifier will be
damaged. On the UTC TDA2003 protection diodes are included to avoid any damage.
INDUCTIVE LOAD
A protection diode is provide between pin 4 and pin 5(see the internal schematic diagram) to allow use of the UTC
TDA2003 with inductive loads. In particular, the UTC TDA2003 can drive a coupling transformer for audio modulation.
DC VOLTAGE
The maximum operating DC voltage on the UTC TDA2003 is 18V.
However the device can withstand a DC voltage up to 28V with no damage. This could occur during winter if two
batteries were series connected to crank the engine.
UTC UNISONIC TECHNOLOGIES CO., LTD.
7
QW-R107-002,A
UTC TDA2003 LINEAR INTEGRATED CIRCUIT
THERMAL SHUT-DOWN
The presence of a thermal limiting circuit offers the following advantages:
1).an overload on the output (even if it is permanent),or an excessive ambient temperature can be easily withstood.
2).the heat-sink can have a smaller factor compared with that of a conventional circuit. There is no device damage in
case of excessive junction temperature: all that happens is that Po ( and there Ptot) and Id are reduced.
APPLICATION SUGGESTION
The recommended values of the components are those shown on application circuit of Fig.16. Different values can be
used. The following table can help the designer.
COMPONENT
RECOMMENDED
VALUE
PURPOSE
LARGE THAN
RECOMMENDED
VALUE
LARGE THAN
RECOMMENDED
VALUE
R1
R2
(Gv-1)*R2
gain setting.
gain and SVR
setting.
increase of Gain
2.2p
Decrease of SVR
R3
1W
Frequency stability
Danger of oscillation
at high frequencies
with inductive loads.
Rx
C1
»20R2
2.2mF
Upper frequency
cutoff
Poor high frequencies Dange of oscillation
attenuation
Input DC decoupling
Noise at switch-on
switch-off
C2
C3
470mF
0.1mF
Ripple rejection
Supply voltage
bypass
Decrease of SVR
Dange of oscillation
C4
C5
100mF
0.1mF
Supply voltage
bypass
Higher low frequency
cutoff
Frequency stability
Danger of oscillation
at high frequencies
with inductive loads.
Cx
»1/(2p*B*R1)
Upper frequency
cutoff
smaller bandwidth
Larger bandwidth
UTC UNISONIC TECHNOLOGIES CO., LTD.
8
QW-R107-002,A
相关型号：
©2020 ICPDF网 联系我们和版权申明