AV2030 데이터 시트보기 (PDF) - Avic Technology
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AV2030 Datasheet PDF : 13 Pages
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@vic AV2030
LINEAR INTEGRATED CIRCUIT
SHORT CIRCUIT PROTECTION
The UTC TDA2030 has an original circuit which limits the current of the output transistors. This function can be
considered as being peak power limiting rather than simple current limiting. It reduces the possibility that the device
gets damaged during an accidental short circuit from AC output to Ground.
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 above limit ambient temperature can be easily supported
since the Tj can not be higher than 150°C
2).The heatsink can have a smaller factor of safety compared with that of a congenital circuit, There is no possibility
of device damage due to high junction temperature increase up to 150, the thermal shut-down simply reduces the
power dissipation and the current consumption.
APPLICATION SUGGESTION
The recommended values of the components are those shown on application circuit of Fig.14. Different values can
be used. The following table can help the designer.
COMPONENT
R1
R2
R3
R4
R5
C1
C2
C3,C4
C5,C6
C7
C8
D1,D2
RECOMMENDED
VALUE
22KΩ
680Ω
22KΩ
1Ω
≈3R2
1µF
22µF
0.1µF
100µF
0.22µF
≈1/(2π*B*R1)
1N4001
PURPOSE
Closed loop gaon
setting.
Closed loop gaon
setting.
Non inverting input
biasing
Frequency stacility
Upper frequency
cutoff
Input DC decoupling
LARGE THAN
RECOMMENDED
VALUE
Increase of Gain
Decrease of Gain
Increase of input
impedance
Danger of oscillation
at high frequencies
with inductive loads.
Poor high frequencies
attenuation
Inverting DC
decoupling
Supply voltage
bypass
Supply voltage
bypass
Frequency stability
Upper frequency
cutoff
To protect the device
against output voltage
spikes.
smaller bandwidth
LARGE THAN
RECOMMENDED
VALUE
Decrease of Gain
Increase of Gain
Decrease of input
impedance
Dange of oscillation
Increase of low
frequencies cutoff
Increase of low
frequencies cutoff
Dange of oscillation
Dange of oscillation
Larger bandwidth
Larger bandwidth
QW-R107-004,B
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