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參數(shù)資料
| 型號： | UTCTDA2003 |
| 廠商： | 友順科技股份有限公司 |
| 元件分類： | 音頻放大器 |
| 英文描述： | 10W CAR RADIO AUDIO AMPLIFIER |
| 中文描述： | 10W的汽車無線電音頻放大器 |
| 文件頁數(shù)： | 8/8頁 |
| 文件大?。?/td> | 72K |
| 代理商： | UTCTDA2003 |
UTC TDA2003
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.
LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO., LTD.
8
QW-R107-002,A
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
increase of Gain
R1
R2
(Gv-1)*R2
2.2
π
gain setting.
gain and SVR
setting.
Frequency stability
Decrease of SVR
R3
1
Danger of oscillation
at high frequencies
with inductive loads.
Poor high frequencies
attenuation
Rx
≈
20R2
Upper frequency
cutoff
Input DC decoupling
Dange of oscillation
C1
2.2
μ
F
Noise at switch-on
switch-off
Decrease of SVR
Dange of oscillation
C2
C3
470
μ
F
0.1
μ
F
Ripple rejection
Supply voltage
bypass
Supply voltage
bypass
Frequency stability
C4
100
μ
F
Higher low frequency
cutoff
Danger of oscillation
at high frequencies
with inductive loads.
Larger bandwidth
C5
0.1
μ
F
Cx
≈
1/(2
π
*B*R1)
Upper frequency
cutoff
smaller bandwidth
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