TDA2003 データシートの表示（PDF） - Tiger Electronic
部品番号
コンポーネント説明
メーカー
TDA2003 Datasheet PDF : 8 Pages
| |||
TDA2003
Inductive load
A protection diode is provide between pin 4 and pin 5(see the internal schematic diagram)
to allow use of the TDA2003 with inductive loads. In particular, the TDA2003 can drive a
coupling transformer for audio modulation.
DC voltage
The maximum operating DC voltage on the TDA2003 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 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.
APPLICATION SUGGESTION
The recommended values of the components are those shown on application circuit of
Typical application circuit. Different values can be used .the following table can help the
designer.
Component
Recommended
Value
R1
(Gv-1)*R2
Purpose
Gain setting
Smaller than
recommended
Value
Large than
recommended
Value
Increase of gain
R2
2.2Ω
Gain and SVR setting Decrease of SVR
Danger of
R3
1Ω
Frequency stability
Oscillation at high
frequency with
inductive loads.
Rx
=20*R2
Upper frequency cut Poor high frequencies
off
attenuation
Danger of
oscillation
C1
2.2µF
Input DC decoupling
Noise at switch-on
switch-off
C2
470µF
Ripple rejection
Decrease of SVR
C3
0.1µF
Supply voltage by
pass
C4
1000µF
Supply voltage by
pass
Danger of
oscillation
Higher low
frequency cut off
Share Link: 