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TBA820ML-D08-T [UTC]

1.2W AUDIO POWER AMPLIFIER; 1.2W音频功率放大器
TBA820ML-D08-T
型号： TBA820ML-D08-T
厂家： Unisonic Technologies    Unisonic Technologies
描述：

1.2W AUDIO POWER AMPLIFIER
1.2W音频功率放大器

放大器 功率放大器
文件： 总5页 (文件大小：95K)
中文：  中文翻译
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UNISONIC TECHNOLOGIES CO.,  
TBA820M  
LINEAR INTEGRATED CIRCUIT  
1.2W AUDIO POWER  
AMPLIFIER  
ꢀ
DESCRIPTION  
SOP-8  
The UTC TBA820M is a monolithic integrated audio  
amplifier. It is designed for audio frequency class b amplifier.  
ꢀ
FEATURES  
*Wide operating supply voltage: Vcc=3~14V  
*Medium output power  
DIP-8  
POUT=1.2W at Vcc=9V,RL=8Ω, THD=10%  
*Low quiescent circuit current: IQ=4mA(type)  
*Good ripple rejection.  
*Minimum number of external parts required.  
*Pb-free plating product number: TBA820ML  
ꢀ
ORDERING INFORMATION  
Order Number  
Package  
Packing  
Normal  
Lead Free Plating  
TBA820M-S08-R  
TBA820M-S08-T  
TBA820M-D08-T  
TBA820ML-S08-R  
TBA820ML-S08-T  
TBA820ML-D08-T  
SOP-8  
SOP-8  
DIP-8  
Tape Reel  
Tube  
Tube  
ꢀ
BLOCK DIAGRAM  
Ripple Bootstrap Vcc  
Output  
8
7
6
5
1
2
3
4
CB  
NF  
Input  
GND  
www.unisonic.com.tw  
Copyright © 2005 Unisonic Technologies Co.,  
1
QW-R107-008.C  
TBA820M  
LINEAR INTEGRATED CIRCUIT  
ꢀ
ABSOLUTE MAXIMUM RATINGS (Ta =25°C)  
PARAMETER  
SYMBOL  
Vcc  
RATINGS  
16  
UNIT  
V
Supply Voltage  
Output Peak Current  
Power Dissipation  
IO(peak)  
PD  
1.5  
A
1.25  
W
Operating Temperature  
Storage Temperature  
TOPR  
0 ~ +70  
-40 ~ +150  
°C  
°C  
TSTG  
Note:1. Absolute maximum ratings are stress ratings only and functional device operation is not implied. The device  
could be damaged beyond Absolute maximum ratings.  
2. The device is guaranteed to meet performance specifications within 0℃~70℃ operating temperature range  
and assured by design from –20℃~85℃.  
ꢀ
ELECTRICAL CHARACTERISTICS  
(Ta=25°C, Vcc=9V, F=1KHZ, RG=600Ω, RF=120Ω, RL=8Ω, unless otherwise specified.  
PARAMETER  
Quiescent Current  
SYMBOL  
IQ  
TEST CONDITIONS  
MIN  
TYP  
4
MAX  
12  
UNIT  
mA  
VIN=0  
Vcc=9V,RL=4Ω,THD=10%  
Vcc=9V,RL=8Ω,THD=10%  
Vcc=6V,RL=4Ω,THD=10%  
Vcc=6V,RL=8Ω,THD=10%  
Vcc=12V,RL=8Ω,THD=10%  
POUT=500mW  
1.6  
1.2  
0.75  
0.5  
2
0.9  
0.4  
Output Power  
POUT  
W
Total Harmonic Distortion  
Open Loop Voltage Gain  
Closed Loop Voltage Gain  
Input Resistance  
THD  
Gvo  
Gvc  
RIN  
0.3  
75  
1
39  
1
%
dB  
RF=0  
RF=120Ω  
33  
36  
dB  
5
MΩ  
mV  
Output Noise Voltage  
eN  
RG=10kΩ, BW(-3dB)=50~20kHz  
0.3  
UNISONIC TECHNOLOGIES CO., LTD  
2
www.unisonic.com.tw  
QW-R107-008.C  
TBA820M  
LINEAR INTEGRATED CIRCUIT  
ꢀ
TEST CIRCUIT  
VCC  
R3  
56Ω  
100 µF/16V  
0.1 µF  
CB(Bootstrap  
6
Cap)  
INPUT  
100 µF/15V  
OUTPUT  
220 µF/15V  
3
2
7
1
5
UTC TBA820M  
R1  
10KΩ  
8
4
R2  
1Ω  
R
L
4Ω  
R
120Ω  
F
0.1 µF  
47  
µF/10V  
100 µF/10V  
UNISONIC TECHNOLOGIES CO., LTD  
3
www.unisonic.com.tw  
QW-R107-008.C  
TBA820M  
LINEAR INTEGRATED CIRCUIT  
ꢀ
TYPICAL CHARACTERISTICS  
Fig 1 Quienscent circuit current vs  
Supply Voltage  
Fig 2 Output power vs Supply Voltage  
2.0  
1.6  
VIN=0  
RL  
=8Ω  
8
4
0
R
L=4Ω  
RL=16Ω  
1.2  
0.8  
THD=10%  
f=1kHz  
0.4  
0
R
F
=120Ω  
0
4
8
12  
16  
20  
0
4
8
12  
16 20  
Supply Voltage(V)  
Supply Voltage(V)  
Fig 3 Total harmonic Distortion vs Output power  
Vcc=9V  
Fig 4 Voltage Gain vs Feedback resistance  
Vcc=9V  
RL  
=8Ω  
R
RF  
f=1kHz  
L
=8Ω  
=120Ω  
16  
f=1kHz  
80  
60  
40  
12  
8
4
0
20  
0
0
0.4  
0.8  
1.2  
1.6  
0
50  
100  
150  
Output Power(W)  
Feedback Resistance (Ω)  
Fig 5 Power Dissipation vs Output power  
0.5  
Fig 6 Power Dissipation vs Supply Voltage  
1.0  
RL=8Ω  
RL=4Ω  
RL=16Ω  
0.25  
0.5  
Vcc=9V  
=8Ω  
f=1kHz  
R
L
0
0
0
0.4  
0.8  
1.2  
1.6  
2.0  
0
4
8
12  
16  
20  
Output Power(W)  
Supply Voltage(V)  
UNISONIC TECHNOLOGIES CO., LTD  
4
www.unisonic.com.tw  
QW-R107-008.C  
TBA820M  
LINEAR INTEGRATED CIRCUIT  
ꢀ
TYPICAL CHARACTERISTICS(CONT.)  
Fig 7 Frequency response  
=120Ω  
Fig 8 Total Harmonic distortion vs frequency  
5
R
F
Vcc=9V  
R
R
L
=8Ω  
4
F=120Ω  
3
1
0
3
2
CB=220pF  
-1  
PoUT=50mW  
PoUT=500mW  
CB=660pF  
-3  
-5  
1
0
2
3
4
5
2
3
4
5
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
Frequency(Hz)  
Frequency(Hz)  
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.  
UNISONIC TECHNOLOGIES CO., LTD  
5
www.unisonic.com.tw  
QW-R107-008.C  

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