TDA3118 Digital 2-Channel Stereo Audio Amplifier Board Module

The Audio Amplifier Board Module TDA3118 is a limited version of the TDA3116D2. The limitation seems obtained by different packages for the two chips. This amplifier module is supplied in a plastic package (HTSSOP32) with a cooling pad turned downward on the PCB while the TPA3116D2 package has a cooling pad on the top for a heat sink. The 2-channel stereo module is described in the common data sheet as able to operate "without heat sink", which is no doubt correct for up to 19V supply voltage but may be arguable at full supply voltage.
The TDA3118 audio board module has a wide supply voltage range, even down to below 5 Volt. Being so versatile, it can be used for most audio applications in ordinary consumer products. For higher power levels TPA3118 is limited by the maximum supply voltage of 26V and the possibility to cool the chip.