Multiwatt-15 thermal and mechanical fit for power audio
The E-TDA7375AV lives in a Multiwatt-15 through-hole package with vertical, bent, and staggered leads — a footprint that sinks heat through the copper tab into the PCB plane.
43 W per channel — the load and supply decide the real output
Rated 43 W x 2 at 4 Ω or 12 W x 4 at 2 Ω, the E-TDA7375AV delivers its headline power only when the supply rail holds at the nominal 14.4 V. The 8 V to 18 V supply range covers the automotive battery envelope from cold-crank dip to alternator overvoltage, but output power scales with rail voltage — at 12 V the 4 Ω stereo output drops to roughly 30 W. The 2 Ω quad configuration is useful for driving multiple small speakers in a distributed system, but the thermal load at 2 Ω per channel is higher than the 4 Ω stereo case.
Active lifecycle — no LTB pressure for current BOMs
The Automotive series designation signals that the device is qualified to ST's automotive-grade flow, which includes extended temperature testing and reliability screening beyond the commercial baseline.
Depop, standby, and protection — what the feature set buys you
The integrated depop circuit suppresses the turn-on thump that otherwise couples into the speakers through the DC-blocking capacitors. Short-circuit and thermal protection latch the output stage off during a fault and auto-recover when the junction cools — no external crowbar or fuse needed. The standby pin pulls the quiescent current to near zero, which matters for ignition-off battery drain in automotive infotainment systems.