The TDA7850 and TDA7388 are both integrated circuit (IC) chips commonly used in automotive audio amplifiers. Here is some information about each of them:

1. TDA7850: The TDA7850 is a 4-channel bridge-tied load (BTL) audio amplifier IC primarily designed for car audio applications. It can deliver a maximum power output of around 50 watts per channel when operating in BTL mode (bridged mode), and around 25 watts per channel in single-ended mode. The TDA7850 is known for its high-efficiency and low distortion characteristics, making it suitable for powering car speakers or subwoofers.

2. TDA7388: Similar to the TDA7850, the TDA7388 is a 4-channel BTL audio amplifier IC designed for automotive applications. It is capable of delivering a maximum power output of approximately 40 watts per channel in BTL mode and around 20 watts per channel in the single-ended mode. The TDA7388 is also known for its efficiency and low distortion, making it suitable for powering car speakers or subwoofers.

Both the TDA7850 and TDA7388 ICs require an external power supply, which typically ranges from 8 to 18 volts. They also feature built-in protection mechanisms, such as thermal protection and short-circuit protection, to ensure safe operation.

It is important to note that the specifications and features mentioned above are general guidelines, and the actual performance may vary depending on the specific implementation and external components used with these ICs.

Some equivalent TDA7850 chips that can be used are:

TDA7385, TDA7387, TDA7388, TDA7851, TDA7851L, PA2030A, TB2929HQ, TB2959HQ, TB6560AHQ, TA8435HQ, STPA001, STPA002, STPA003, STPA008, TDA7381, TDA7384A, THB6032MQ, TDA7560, TDA7384, TDA7386, TB2929HQ, TB2926HQ, TA82624H, TA8262, LV4700, TDA7850A, TDA7388A

Details in English

https://xtronic.org/circuit/audio-power-amplifier-circuit-tda7388-tda7850/

Detalhes em Português

https://www.te1.com.br/2023/08/circuito-amplificador-audio-tda7388-tda7850/