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Class D audio DirectFET MOSFET

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article image Designed for high-performance amplifiers.

INTERNATIONAL Rectifier has released the IRF6665 DirectFET MOSFET for medium-power, Class D audio amplifiers. The device parameters are tuned for improved audio performance, including total harmonic distortion (THD) and power density.

Applications for Class D amplifiers range from battery-powered portable products to high-end professional amplifiers, musical instruments and car and home multimedia systems. In addition to application-tuned silicon, the DirectFET packaging enhances performance in Class D audio amplifier circuits by reducing lead inductance, which improves switching performance and reduces EMI noise. Thermal efficiency enables 100W operation into 8Ω without a heatsink. Eliminating heatsinks shrinks circuit size and bulk, giving designers more layout flexibility and reducing amplifier cost.

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