The TDA7391LV is a bridge class AB audio power amplifier specially intended for car radio high power applications. It combines high power output with the possibility to operate either in differential input mode or single ended input mode. It is moreover compliant to the most recent OEM specifications for low voltage operation (so called 'start-stop' battery profile during engine start-stop).
The TDA7391LV is a bridge class AB audio power amplifier specifically intended for car radio high power applications. It features a high power capability of up to 40W into a 4Ω load and supports low voltage operation down to 6V, making it suitable for 'start-stop' battery profiles. The device includes a fully complementary output stage with an internal fixed gain of 30dB, eliminating the need for external bootstrap capacitors or boucherot cells.
| Output power (4Ω, 14.4V) | 40 W |
|---|---|
| Output power (3.2Ω, 14.4V) | 45 W |
| Supply voltage range | 6 to 18 V |
| Total quiescent current | 150 mA |
| Output offset voltage | 120 mV |
| Package type | Multiwatt11, PowerSO-20 |
The device is capable of operating down to 6 V, which is suitable for start-stop battery profiles.
No, the amplifier does not require bootstrap capacitors as it uses an internal fixed gain configuration.
The amplifier has an internally fixed gain of 30 dB.