TBA820M_10 [UTC]
1.2W AUDIO POWER AMPLIFIER; 1.2W音频功率放大器型号: | TBA820M_10 |
厂家: | Unisonic Technologies |
描述: | 1.2W AUDIO POWER AMPLIFIER |
文件: | 总5页 (文件大小:112K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
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
-20 ~ +85
-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
56
100 F/16V
0.1 F
CB(Bootstrap
6
Cap)
INPUT
100 F/15V
OUTPUT
220 F/15V
3
2
7
1
5
UTC TBA820M
R1
10K
8
4
R2
1
RL
4
RF
120
0.1 F
47
F/10V
100 F/10V
UNISONIC TECHNOLOGIES CO., LTD
3
www.unisonic.com.tw
QW-R107-008.C
TBA820M
LINEAR INTEGRATED CIRCUIT
TYPICAL CHARACTERISTICS
Fig 2 Output power vs Supply Voltage
Fig 1 Quienscent circuit current vs
Supply Voltage
2.0
1.6
VIN=0
RL=8
8
4
0
RL=4
RL=16
1.2
0.8
THD=10%
f=1kHz
RF=120
0.4
0
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
Fig 4 Voltage Gain vs Feedback resistance
Vcc=9V
RL=8
Vcc=9V
RL=8
16
f=1kHz
RF=120
f=1kHz
80
12
60
40
8
4
0
20
0
0
0.4
0.8
1.2
1.6
0
50
100
150
Output Power(W)
Feedback Resistance( )
Fig 5 Power Dissipation vs Output power
Fig 6 Power Dissipation vs Supply Voltage
1.0
0.5
RL=8
RL=4
RL=16
0.25
0.5
Vcc=9V
RL=8
f=1kHz
0
0
0
0.4
0.8
1.2
1.6
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.)
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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