PA2005L-J11-A-T [UTC]
20W BRIDGE AMPLIFIER FOR CAR RADIO; 20W桥式放大器汽车收音机
| 型号： | PA2005L-J11-A-T |
| 厂家： | 
Unisonic Technologies |
| 描述： | 20W BRIDGE AMPLIFIER FOR CAR RADIO |
| 文件： | 总16页 (文件大小：517K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
PA2005
LINEAR INTEGRATED CIRCUIT
20W BRIDGE AMPLIFIER FOR
CAR RADIO
DESCRIPTION
The UTC PA2005 is class B dual audio power amplifier, have
designed for car radio application.
FEATURES
* High output power:
OUT=10+10W@RL=2Ω, THD=10%
OUT=20W@RL=4Ω, THD=1%
P
P
ORDERING INFORMATION
Ordering Number
Package
Packing
Lead Free
Halogen Free
PA2005L-J11-A-T
PA2005L-H14-B-T
PA2005G-J11-A-T
PA2005G-H14-B-T
HZIP-11A
HSIP-14B
Tube
Tube
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QW-R107-035,D
PA2005
LINEAR INTEGRATED CIRCUIT
PIN CONFIGURATION
HZIP-11A
HSIP-14B
PIN DESCRIPTION
PIN NO.
PIN NAME
INPUT+ (1)
HZIP-11 HSIP-14*
1
2
1
2
INPUT- (1)
SVRR
3
3
4
4
INPUT- (2)
INPUT+ (2)
GND
5
5
6
6
7
10
11
12
13
14
BOOTSTRAP 2
OUTPUT 2
+VS
8
9
10
11
OUTPUT 1
BOOTSTRAP 1
* PIN 7, 8, 9 no connection.
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LINEAR INTEGRATED CIRCUIT
BLOCK DIAGRAM
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LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Operating Supply Voltage
SYMBOL
Vss
Vss
Vss
Io
RATINGS
18
UNIT
V
DC Supply Voltage
28
V
Peak Supply Voltage (for 50ms)
40
V
non repetitive t=0.1ms
repetitive f ≥10Hz
4.5
A
Output Peak Current (Note)
Io
3.5
A
Power Dissipation at Tc=60°C
Junction Temperature
PD
30
W
°C
°C
TJ
+150
-40 ~ 150
Storage Temperature
TSTG
Note: The max. output current is internally limited.
THERMAL DATA
PARAMETER
SYMBOL
RATINGS
3.0
UNIT
Junction to Case
θJC
°C /W
ELECTRICAL CHARACTERISTICS
(Refer to the application circuit, Ta=25°C, Gv=50dB, Rth(heatsink)=4℃/W, unless otherwise specified.)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX UNIT
BRIDGE
Supply Voltage
Vss
Vos
8
18
V
Output Offset Voltage
(between pin 8 and pin 10)
Vss=14.4V
Vss=13.2V
Vss=14.4V, RL=4Ω
Vss=13.2V, RL=3.2Ω
150
150
150
160
mV
mV
mA
mA
75
70
Total Quiescent Drain Current
ID
THD=10%, f=1Hz
Vss=14.4V, RL=4Ω
RL=3.2Ω
18
20
17
20
22
19
Output Power
POUT
W
Vss=13.2V, RL=3.2Ω
Vss=14.4V, RL=4Ω
1
1
%
%
POUT=50mW ~ 15W
Vss=13.2V, RL=3.2Ω
Total Harmonic Distortion
f=1KHz
THD
VIN
POUT=50mW ~ 13W
POUT=2W, RL=4Ω
POUT=2W, RL=3.2Ω
9
8
mV
mV
kΩ
Input Sensitivity
f=1kHz
Input Resistance
RIN
fL
f=1kHz
RL=3.2Ω
RL=3.2Ω
70
20
Low Frequency Roll Off (-3dB)
High Frequency Roll Off (-3dB)
Closed Loop Voltage Gain
Total Input Noise Voltage
40
10
Hz
fH
kHz
dB
GV
eN
f=1kHz
RG=10kΩ(Note 1)
RG=10kΩ, C4=10μF
50
3
μV
Supply Voltage Rejection
SVR
45
55
dB
FRIPPLE=100Hz, VRIPPLE=0.5V
Vss=14.4V, f=1kHz
POUT=20W, RL=4Ω
60
60
%
POUT=22W, RL=3.2Ω
η
Efficiency
Vss=13.2V, f=1kHz
POUT=19W, RL=3.2Ω
58
%
Vss=14.4V, RL=4Ω
Thermal Shut-down Junction
Temperature
TJ
145
°C
f=1kHz, PD=13W
Vss=14.4V, RL=4Ω
Vss=13.2V, RL=3.2Ω
Output Voltage With One Side of
the Speaker Shorted to Ground
VOSH
2
V
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PA2005
LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS(Cont.)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX UNIT
STEREO
Supply Voltage
Vss
8
6.6
6
18
7.8
7.2
120
120
V
V
V
Vss=14.4V
7.2
6.6
65
62
6.5
8
Quiescent Output Voltage
VOUT
Vss=13.2V
Vss=14.4V
Vss=13.2V
mA
mA
Total Quiescent Drain Current
ID
RL=4Ω
6
7
RL=3.2Ω
Vss=14.4V
RL=2Ω
9
10
6
10
11
6.5
10
12
Output Power (each channel)
f=1Hz, THD=10%
POUT
RL=1.6Ω
RL=3.2Ω
RL=1.6Ω
W
Vss=13.2V
9
Vss=16V, RL=2Ω
Vss=14.4V, RL=4Ω
POUT=50mW ~ 4W
Vss=14.4V, RL=2Ω
0.2
0.3
0.2
0.3
60
1
1
1
1
%
%
%
%
Total Harmonic Distortion
(each channel) f=1KHz
POUT=50mW ~ 6W
Vss=13.2V, RL=3.2Ω
THD
POUT=50mW ~ 3W
Vss=13.2V, RL=1.6Ω
POUT=40mW ~ 6W
Vss=14.4V,
f=1KHz
VOUT=4VRMS
Cross Talk
CT
dB
RL=4Ω,
RG=5KΩ
f=10kHz
45
Input Saturation Voltage
Input Sensitivity
VIN
VIN
300
mV
mV
f=1kHz, POUT=1W
RL=4Ω
6
RL=3.2Ω
5.5
200
Input Resistance
RIN
fL
f=1kHz
RL=2Ω
RL=2Ω
70
15
48
kΩ
Hz
kHz
dB
dB
dB
μV
Low Frequency Roll Off (-3dB)
High Frequency Roll Off (-3dB)
Voltage Gain (open Ioop)
Voltage Gain (close Ioop)
Closed Loop Gain Matching
Total Input Noise Voltage
50
fH
GV
GV
△GV
En
f=1kHz
f=1kHz
90
50
51
5
0.5
1.5
RG=10kΩ (Note 1)
RG=10kΩ, C3=10μF
Supply Voltage Rejection
SVR
35
45
dB
FRIPPLE=100Hz, VRIPPLE=0.5V
Vss=14.4V, f=1kHz
POUT=6.5W, RL=4Ω
70
60
%
%
POUT=10W, RL=2Ω
η
Efficiency
Vss=13.2V, f=1kHz
POUT=6.5W, RL=3.2Ω
70
60
%
%
POUT=10W, RL=1.6Ω
Note: 1. Bandwith Filter: 22Hz ~ 22kHz
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LINEAR INTEGRATED CIRCUIT
TEST AND APPLICATION CIRCUIT
Bridge amplifier
+Vs
9
R1
120KΩ
C4
10µF
C3
0.1µF
3
C5
C1
100µF/ 10V
2.2µF/ 3V
1
11
10
INPUT
+ 1/2
PA2005
-
C9
0.1µF
C6
220µF/3V
R2
1KΩ
R6
1Ω
2
RL
C7
C2
2.2µF/ 3V
100µF/10V
5
7
+ 1/2
PA2005
-
8
C10
R3
0.1µF
2KΩ
R4
12Ω
R7
1Ω
4
C8
220µF/ 3V
R5
12Ω
6
Stereo amplifier
+Vs
R1
120KΩ
0.1µF
C4
10µF
9
3
C4
100µF
C1
2.2µF
C10
2200µF
INPUT
(L)
7
8
+ 1/2
PA2005
-
5
C8
0.1µF
R2
1.2KΩ
C5
220µF
4
RL
R6
1Ω
R3
3.3Ω
C2
2.2µF
C6
100µF
INPUT
(R)
+ 1/2
PA2005
-
11
10
1
C11
R4
1.2KΩ
2200µF
C7
220µF
C9
0.1µF
RL
2
R7
1Ω
R5
3.3Ω
6
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PA2005
LINEAR INTEGRATED CIRCUIT
BRIDGE AMPLIFIER DESIGN
The following consideraions can be useful when designing a bridge amplifier.
PARAMETER
SINGLE ENDED
BRIDGE
1
2
Vs-2VCE sat
(Vs-2VCE sat)
VOUT max
IOUT max
POUT max
Peak Output Voltage (before clipping)
1
2
Vs-2VCE sat
RL
Vs-2VCE sat
RL
Peak Output Current (before clipping)
RMS Output Power (before clipping)
(Vs-2VCE sat)2
2RL
(Vs-2VCE sat)2
2RL
1
4
Where: VCE sat=output transistors saturation voltage
Vs=allowable supply voltage
RL=load impedance
Voltage and current swings are twice for a bridge amplifier in comparison with single ended amplifier. In order
words, with the same RL the bridge configuration can deliver an output power that is four times the output power of a
single ended amplifier, while, with the same max output current the bridge configuration can deliver an output power
that is twice the output power of a single ended amplifier. Core must be taken when selecting Vs and RL in order to
avoid an output peak current above the absolute maximum rating.
From the expression for Io max, assuming Vs=14.4V and VCE sat=2V, the minimum load that can be driven by
UTC PA2005 in bridge configuration is:
The voltage gain of the bridge configuration is given by (see Figure 3):
R3
R4
R1
R2× R4
R2 + R4
V0
V1
Gv=
+
=1+
For sufficiently high gains (40 ~ 50dB) it is possible to put R2=R4 and R3=2R1, simplifing the formula in:
R1
R2
Gv=4
R1(Ω)
1000
R2=R4(Ω)
R3(Ω)
2000
Gv (dB)
40
39
12
50
1000
2000
Bridge Configuration
VD
RL
Vi
+
-
+
-
R1
R3
R4
R2
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PA2005
LINEAR INTEGRATED CIRCUIT
APPLICATION INFORMATION
Bridge Amplifier without Boostrap
Low Cost Bridge Amplifier (Gv=42dB)
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LINEAR INTEGRATED CIRCUIT
APPLICATION INFORMATION(Cont.)
10+10W Stereo Amplifier with Tone Balance and Loudness Control
Vs=+14.4V
R1
120KΩ
0.1μF
INPUT(L)
10μF
9
3
5.6KΩ
47nF
100μF
7
0.22μF
C9
47KΩ
2200μF
+ 1/2
PA2005
-
8
2.2nF
P1
100KΩ
2.2nF
C7
R3
0.1μF
P3
C5
1KΩ
100μF
100KΩ
2.7KΩ
4
100KΩ
0.22μF
4Ω
4Ω
P5
R4
3.3Ω
R7
1Ω
100μF
0.15μF
INPUT(R)
11
10
2200μF
+ 1/2
PA2005
-
5.6KΩ
47nF
C8
R5
1KΩ
0.1μF
47KΩ
C6
100μF
2
2.2nF
4Ω
4Ω
P2
100KΩ
R8
1Ω
P4
100KΩ
R6
3.3Ω
6
2.2nF
2.7KΩ
0.15μF
Tone Control Response (circuit of Fihure 8)
12
9
6
3
0
MID
TREBLE
-3
-6
BASS
-9
-12
105
102
103
104
10
f (Hz)
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APPLICATION INFORMATION(Cont.)
20W Bus Amplifier
Simple 20W Two Way Amplifier (Fc=2kHz)
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LINEAR INTEGRATED CIRCUIT
APPLICATION INFORMATION(Cont.)
Bridge Amplifier Circuit suited for Low-gain Applications (Gv=34dB)
Figure 1. Example of Muting Circuit
+
-
+
-
1/2
1/2
12KΩ
12KΩ
+Vs
MUTE
SWITCH
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BUILT-IN PROTECTION SYSTEMS
LOAD DUMP VOLTAGE SURGE
The UTC PA2005 has a circuit which enables it to withstand a voltage pulse train, on pin9, of the type shown in
Figure 3.
If the supply voltage peaks to more than 40V, then an LC filter must be inserted between the supply and pin9, in
order to assure that the pulses at pin 9 will be held withing the limits shown.
A suggested LC network is shown in Figure 2, 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 (pulse or DC) exceeds
18V. For this reason the maximum operating supply voltage is 18V.
Figure 2
Figure 3
Vs(V)
40
L=2mH
t1=50ms
t2=1000ms
FROM
SUPPLY
LINE
A
TO PIN 9
C
14.4
3000μ F
16V
t
t1
t2
SHORT CIRCUIT (AC AND DC CONDITIONS)
The UTC PA2005 can withstand a permanent short circuit on the output for a supply voltage up to 16V.
POLARITY INVERSION
High current (up to 10A) can be handled by the device with no damage for a longer period than the blow-out time
of a quick 2A fuse (normally connected in series with the supply). This feature is added to avoid destruction, if during
fitting to the car, a mistake on the connection of the supply is made.
OPEN GROUND
When the ratio is in the ON condition and the ground is accidentally opened, a standard audio amplifier will be
damaged. On the UTC PA2005 protection diodes are included to avoid any damage.
INDUCTIVE LOAD
A protection diode is provided to allow use of the UTC PA2005 with inductive loads.
DC VOLTAGE
The maxim operating DC voltage for the UTC PA2005 is 18V.
However the device can withstand a DC voltage up to 28V with no damage. This could occur during winter if two
batteries are series connected to crank the engine.
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 heatsink can have a smaller factor of safety compared with that of a conventional circuit. There is no
device damage in the case of excessive junction temperature; all that happens is that Po (and therefore Ptot) and Id
are reduced.
The maximum allowable power dissipation depends upon the size of the external heatsink (i.e. its thermal
resistance); Figure 4 shows the dissipation power as a function of ambient temperature for different thermal
resistance.
LOUDSPEAKER PROTECTION
The circuit offers loudspeaker protection during short circuit for one wire to ground.
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PA2005
LINEAR INTEGRATED CIRCUIT
TYPICAL CHARACTORISTICS
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LINEAR INTEGRATED CIRCUIT
TYPICAL CHARACTORISTICS (cont.)
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LINEAR INTEGRATED CIRCUIT
TYPICAL CHARACTORISTICS (cont.)
Figure17. Supply Voltage Rejection versusC3
(Stereo amplifier)
Figure 16. Distortion versus Frequency
(Stereo amplifier)
Vs=14.4V
Vs=13.2V
Gv=50dB
fRIPPLE=100KHz
VRIPPLE=0.5v
Gv=50dB
10
20
RL=3.2Ω
Po=2.5W
RL=1.6Ω
30
40
50
60
1.2
0.8
0.4
Po=2.5W
RL=3.2Ω
102
103
104
1
3
10
30
10
f (Hz)
C3 (μF)
Figure 18. Supply Voltage Rejection versus
Frequency(Stereo amplifier)
Figure 19. Supply Voltage Rejection versus C2 and C3
(Stereo amplifier)
Vs=14.4V
RL =4Ω
Rg=10KΩ
Gv=390/1Ω
Vs=14.4V
Gv=50dB
C3=10μF
C2=220 μF
fRIPPLE =100Hz
50
60
50
RG=0
μF
C2=22
40
30
20
40
RG=10KΩ
C2=5 μF
30
20
102
103
1
2
5
10 20
10
C3 (μF)
f (Hz)
Figure 21. Gain versus Input Sensitivity
(Stereo amplifier)
Figure 20. Supply Voltage Rejection versus C2 and C3
(Stereo amplifier)
Vs=14.4V
RL=4Ω
Rg=10KΩ
Gv=1000/10Ω
Vs=14.4V
f=1KHz
RL=4 Ω
C2=220 μF
C2=22 μF
54
500
t RIPPLE=100Hz
50
50
40
46
42
200
100
50
C2=5 μF
PoUT=6W
38
34
30
30
20
PoUT=0.5W
20
26
22
1
2
5
10
20
2
4
6 8
2
4
6 8
10
30
100
VI (mV)
300
C3 (μF)
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LINEAR INTEGRATED CIRCUIT
TYPICAL CHARACTORISTICS (cont.)
Figure 23. Total Power Dissipation and
Efficiency versus Output Power
(Bridge amplifier)
Figure 22. Gain versus Input Sensitivity
(Stereo amplifier)
Vs=14.4V
f=1KHz
RL=2Ω
54
50
500
12
10
8
60
PD
46
42
200
100
50
η
40
PoUT=10W
38
34
30
6
4
20
PoUT=0.5W
Vs=14.4V
RL=4Ω
f=1KHz
Gv=50dB
2
20
26
22
4
8
12
16
PoUT (W)
20
26
2
4
6 8
2
4
6 8
10
30
100
VI (mV)
300
Figure 24. Total Power Dissipation and
Efficiency versus Output Power
(Stereo amplifier)
6
4
2
60
40
PD
η
20
Vs=13.2V
RL=3.2Ω
f=1KHz
Gv=50dB
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
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