TDA7265 dual-channel audio power amplifier integrated circuit

TDA7265 is a dual-channel audio power amplifier integrated circuit produced by STMicroelectronics (ST), suitable for high-end TVs and Hi-Fi playback equipment, with mute and standby functions. The chip integrates two audio power amplifier circuits with the same functions and over-current protection, overheat protection, short-circuit protection circuits, and some other auxiliary function circuits.

TDA7265 working power supply: ±6V～±25V, output power: 25+25W (total harmonic distortion = 10%, RL = 8Ω, power supply = ±20V)

TDA7265 appearance: TDA7265 pin function:

1. Negative power supply 2. Output 1 3. Positive 4. Output 2 5. Mute control 6. Negative power supply 7. Positive input 2 8. Negative input 2 9. Bottom line 10. Negative input 1 11. Positive input 1

TDA7265 typical application circuit (positive and negative dual power supply, OCL circuit):

TDA7265 bridge application circuit diagram (BTL circuit):

TDA7265 single power supply application circuit diagram (OTL circuit):