Saturday, November 14, 2009
This is a circuit of 25 Watt audio power amplifier used IC TDA 2009. The TDA 2009 has two channels each rating 12.5 watts on 4 Ohm load. Here the two channels are bridged to get a single out put channel weighting 25 W.
The TDA 2009 IC has also built in features such as short circuit protection,thermal protection, overload protection etc using very low external components.The most interesting factor I see about this IC is that it require no dual supply.
The TDA 2009 IC has also built in features such as short circuit protection,thermal protection, overload protection etc using very low external components.The most interesting factor I see about this IC is that it require no dual supply.
Skema Rangkaian 25 Watt Audio Amplifier
Notes:
Fit a proper size heat sink to TDA 2009
All capacitors in this circuit must be rated above 25 V.
The TDA2009Ais class AB dual Hi-Fi Audio power amplifier assembled in Multiwatt [ package, specially designed for high quality stereo application as Hi-Fi and music centers.
Supply Voltage...................................... 28 V
Io Output Peak Current (repetitive f . 20 Hz)....... 3.5 A
Io Output Peak Current (non repetitive, t = 100 ms). 4.5 A
Ptot Power Dissipation at Tcase = 90 °C............. 20 W
Tstg, Tj Storage and Junction Temperature........... – 40, + 150.
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