TDA7498E

The TDA7498E is a dual BTL class-D audio amplifier designed by STMicroelectronics for home systems and active speaker applications. It provides a robust solution for audio amplification needs, delivering 160W + 160W of output power at 10% THD with a 4 Ω load and 36V supply. For mono applications, it can achieve 220W output power under similar conditions with a 3 Ω load.

This amplifier operates over a wide single-supply voltage range of 14V to 36V, offering flexibility in system design. It boasts a high efficiency of 85%, minimizing heat dissipation and power consumption. The TDA7498E features four selectable fixed gain settings, differential inputs to reduce common-mode noise, and integrated standby and mute functions. Protection features include smart protection and thermal overload protection, ensuring device reliability.

The TDA7498E is housed in a 36-pin PowerSSO package with an exposed pad up (EPU), facilitating the mounting of a separate heatsink for effective thermal management. This package type is suitable for surface-mount assembly.

Key electrical specifications include a maximum DC supply voltage of 45V, a maximum input pin voltage of 4V, and a total quiescent current of 60 mA. The amplifier also offers a supply voltage rejection ratio of 55 dB and a small output offset voltage of less than 20 mV.