Discrete Class D Audio Amplifier ICs

Scalable output power with a unified design platform

Infineon’s discrete audio solutions are scalable to various output power levels, simply by replacing the external MOSFETs or CoolGaN™ e-mode HEMTs of the driver-transistor combinations. 

Key parameters for the transistors used in discrete class D audio applications include on-state resistance (R_DS(on)), gate charge (Q_G), and reverse recovery charge (Q_rr). Our products are specifically suitable for class D audio applications and optimized for these parameters to achieve maximized efficiency, THD and EMI amplifier performance.

The CoolGaN™ 400V e-mode HEMTs portfolio is specifically built for class D audio requirements, with high performing SMD packages to fully utilize the benefits of gallium nitride.