Class AB stereo amp with thermal shutdown — 11 W per channel into 4 Ω
The Texas Instruments LM4752TS/NOPB is a Class AB stereo audio amplifier delivering 11 W per channel into a 4 Ω load. It runs from a 9 V to 32 V supply rail and includes thermal shutdown protection.
11 W into 4 Ω — what that means for speaker selection
The 11 W rating into 4 Ω is the maximum continuous output per channel before clipping.
Mounting and thermal management
Without a thermal pad under the tab, the 11 W output will trigger the thermal shutdown at high ambient. The tab is the ground path for the output stage, so the PCB layout should connect it to a low-thermal-resistance ground plane. The seven leads carry the supply, inputs, outputs, and shutdown control — verify the pinout against the datasheet before laying out the board.