TDA7389A is a car audio power amplifier chip produced by ST. This chip uses AB class amplifier circuit. The maximum output power can reach 4x45W. It can be used in high-end car audio.
The TDA7389A is an AB class audio power amplifier packaged in Flexiwatt27, specifically designed for high-end car radio applications. It delivers up to 4 x 45 W of output power at a maximum supply voltage and operates with low external component count due to its internally fixed gain.
| Output power (max) | 4 x 45 W |
|---|---|
| Voltage gain | 26 dB typical |
| Quiescent current | 150 mA typical |
| Package type | Flexiwatt27 |
The amplifier delivers a maximum output power of 4 x 45 W at a supply voltage of 14.4 V.
No, it does not require external compensation or bootstrap capacitors as the gain is internally fixed.
It includes protections for output short circuit, thermal shutdown, load dump voltage, and reversed battery.