IR Introduces 25W to 500W Scalable Output Power Class D Audio Power Amplifier Reference Design
International Rectifier has introduced the IRAUDAMP7 reference design for Class D audio amplifiers for home theater applications, musical instruments and car entertainment.
With a power range from 25W to 500W, the IRAUDAMP7 offers a high degree of scalability on a single layer PCB. The IRAUDAMP7S two-channel, 120W half-bridge design provides 91 percent efficiency at 120W in Class D stage, eight ohms, and a THD+N of 0.005 percent at 1 kHz, 60W, eight ohms, (both typical).
The IRAUDAMP7D features IR’s IRS2092 protected digital audio driver IC in a DIP16 package together with through-hole components while the IRAUDAMP7S features the IRS2092S in an SOIC package with surface-mount components. Both reference designs are paired with the IRFI4019H-117P digital audio dual MOSFET to further enhance scalability, and are wave solder process compatible.
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