TDA1541功放可以提高它的功率吗?最高耐多大电压
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TDA1541功放可以提高它的功率吗?最高耐多大电压
TDA1541功放可以提高它的功率吗?最高耐多大电压
TDA1541功放可以提高它的功率吗?最高耐多大电压
TDA1541A(1) 28 DIL plastic SOT117
SYMBOL PARAMETER CONDITIONS MIN.TYP.MAX.UNIT
VDD supply voltage; pin 28 4.5 5.0 5.5 V
-VDD1 supply voltage; pin 26 4.5 5.0 5.5 V
-VDD2 supply voltage; pin 15 14.0 15.0 16.0 V
IDD supply current; pin 28 - 27 40 mA
-IDD1 supply current; pin 26 - 37 50 mA
-IDD2 supply current; pin 15 - 25 35 mA
THD total harmonic distortion including noise - -95 -90 dB
at 0 dB - 0.0018 0.0032 %
THD total harmonic distortion including noise - -42 - dB
at -60 dB - 0.79 - %
NL non-linearity at Tamb =
-20 to +85 °C - 0.5 1.0 LSB
tcs current settling time to ± 1LSB - 0.5 - ms
BR input bit rate at data input;
(pin 3 and 4) - - 6.4 Mbits/s
fBCK clock frequency at clock input - - 6.4 MHz
TCFS full scale temperature coefficient at analog
(AOL;AOR) - ±200 ´
10-6 - K-1
Tamb operating ambient temperature range -40 - +85 °C
Ptot total power dissipation - 700 - mW
以上是TDA1541A的官方参数.可见VDD（max）为5.5V
-VDD1(max）为5.5V
-VDD2（max）为16V
PTOT TOTAL功率为700mw.
如果现在的供电电压不是不高.那么提高供电电压是增加功率的直接办法.如果现在的供电电压已经很高.那么改变电路结果比较合适.比如改为推挽.或是增加前级输入功率.在输入前再放一级.或者直接更换大功率管.