Hi.
I bought a multimedia screen for my car that I wanted with the TDA7803 chip, but the seller sent me a unit with the TDA7808 chip. I'm noticing that the chip is getting too hot. I am using speaker system with less than 4 ohms. That's why I wanted my unit to have the TDA7803 chip, which according to the data sheet supports impedances of less than 2 ohms. The TDA7808 only specifies its use for impedances of 4 ohms or more. What I wanted to know is if by changing the chip for a TDA7803 I could expect it to work at lower temperatures. The replacement job is simple. And I will surely have to program the TDA7803 via I2C bus using an Arduino board for example.
