TDA7265 is a dual-channel audio power amplifier integrated circuit produced by st company, which is suitable for audio power amplifier in high-end TV and Hi-Fi playback equipment.
Features
TDA7265 integrated circuit has high output power (each circuit is 25w; the working power supply voltage range is wide (±6—25V), with mute function and standby function. It contains two audio power amplifier integrated circuits with the same function. Current protection circuit and overheat protection circuit, as well as some other auxiliary function circuits.
The IC adopts 11-pin single in-line package, the pin function of the integrated circuit:
- Power negative 2. Output 1 3. Positive 4. Output 2 5. Mute control 6. Power negative
- Positive input 2 8. Negative input 2 9. Ground wire 10. Negative input 1 11. Positive input 1
It is not difficult to see that the parameters and packaging of TDA7265 are similar to its brother model TDA7269, but the power of TDA7265 is more than doubled. It is also mainly used in some high-end TV sets and car stereos. This time, I have collected the circuit diagrams of several application methods of TDA7265 for everyone. Those who are interested may wish to try it. According to friends who have heard the application of 7265 high-end TV audio, the sound quality and dynamics are still very good.
According to official information, when the power supply is ±16 in VBTL mode, TDA7265 can also obtain 50W power. Because the current is large when BTL works, the power supply voltage should be lower than the normal mode, and it is best not to exceed the recommended ± 20V.
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