DIY 4x22W car audio amplifier based on TDA7384

I decided to make pretty simple but powerful enough audio amplifier. For this, I’ve chosen quad-bridge car audio amplifier IC – TDA7384, which has four input and four output channels with power capability 4x35W(4Ω). If connected to a car battery where the operating voltage is about 13.2V, then each channel can give 22W what is more than enough for me. This amplifier I probably will use to test audio processor TDA7313, which is still in the development phase. I didn’t find much information about this chip on the internet, so I decided to build it and try on my own. As datasheets of TDA,7384 says, it is low distortion, low output noise, low external component count. Also has Stand-By function and Mute function. It has several protections like from output short circuit to GND. or to Vs, capable of handling very inductive loads, thermal limiter, load dump voltage. TDA7384 is an AB power amplifier cased in flexiwatt25 (eagle library is included in project archive) package which is designed for high-end car radio applications. It allows the rail to rail output voltage swing with no need of bootstrap capacitors. (click to enlarge) I have followed the schematic in datasheet when building…

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