100 W per channel into 6 Ω — the load-dependent power ceiling
The TDA7498TR delivers 100 W per channel into a 6 Ω load, making it a Class D stereo amplifier suited for powered speakers, subwoofer plates, and commercial audio distribution where a single 14–39 V rail feeds both channels. At 100 W × 2 into 6 Ω, the output stage runs in Class D topology, which keeps efficiency above 80 % across most of the power band — the heatsink area needed is roughly half what a linear amp of the same output would require.
Supply range and temperature grade — where this part fits on the board
The 14 V to 39 V supply input covers common audio rails: a 24 V industrial supply, a 36 V brick for pro-audio gear, or a regulated 12 V boosted through a front-end converter. The wide margin means the same BOM position can serve multiple product variants without a supply redesign.
Protection features and standby — what the integrated blocks save you
On-chip short-circuit and thermal protection eliminate the need for external crowbar circuits or PTC fuses on each channel. The mute and standby pins let a microcontroller or DSP put the amplifier into a low-power idle state between audio events, dropping the quiescent draw to under 10 mA. Differential inputs reject ground-loop hum common in multi-box audio systems — the input common-mode range tracks the supply midpoint, so the amplifier does not require a separate analog ground reference.