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TDA2003 Folha de dados(PDF) 6 Page - Tiger Electronic Co.,Ltd

Nome de Peças TDA2003
Descrição Electrónicos  10W CAR RADIO AUDIO AMPLIFIER
Download  8 Pages
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Fabricante Electrônico  TGS [Tiger Electronic Co.,Ltd]
Página de início  http://www.tgselec.com
Logo TGS - Tiger Electronic Co.,Ltd

TDA2003 Folha de dados(HTML) 6 Page - Tiger Electronic Co.,Ltd

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TDA2003
Inductive load
A protection diode is provide between pin 4 and pin 5(see the internal schematic diagram)
to allow use of the TDA 2003 with inductive lo ads. In particular, the TDA 2003 can drive a
coupling transformer for audio modulation.
DC voltage
The maximu m operating DC voltage on the TDA 2003 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.
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 temp erature
can be easily withstood.
(2).the heat-sink can have a smaller factor comp ared with that of a conventional circuit.
There is no device damage in case of excessive junction temp erature: all that happens is
that Po( and there Ptot) and Id are reduced.
APPLICATION SUGGESTION
The recommended values of the components ar e those shown on application circuit of
Ty pical application circuit. Different values can be used .the following table can help the
designer.
Component
Recomme nded
Value
Purpose
Smaller than
recommended
Value
Large than
recommended
Value
R1
(Gv-1)*R2
Gain setting
Increase of gain
R2
2.2
Gain and SVR setting
D ecrease of SVR
R3
1
Frequency stability
Danger of
Oscillation at high
frequency with
inductive loads.
Rx
=20*R2
Upper frequency cut
off
Poor high frequencies
attenuation
Danger of
oscillation
C1
2.2
µF
Input DC decoupling
Noise at switch-on
switch-off
C2
470
µF
Ripple rejection
Decrease of SVR
C3
0.1
µF
Supply voltage by
pass
Danger of
oscillation
C4
1000
µF
Supply voltage by
pass
Higher low
frequency cut off


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