Audio amplifier

Exceptional design flexibility

A growing number of designers with a background in Class AB currently face a big learning curve as they are tasked to design Class D applications. This situation also results in longer time to market cycles. Above all, to be successful these designers need well-tested, production-ready reference designs to help realize their projects. Additional must-haves include optimal PCB layout, housekeeping peripheral interfaces and a selection of key component.

Audio amplifier system diagram

Flexible, scalable and lightweight

At Infineon, we understand how this situation challenges many designers. That’s why we offer you the right power solutions for Class D amplifier stage applications. Ones that are compact and light, with enhanced audio performance and a benchmark figure of merit (FOM).

Furthermore, choose our audio amplifier solutions – such as Class D audio control ICs, Class D audio optimized MOSFETS, and complete power supply solutions – and profit from excellent scalability and higher efficiency, key for longer battery life. Experience a new world of design flexibility thanks to their small size. Our solutions are lightweight enough for professional and automotive audio applications. Take your audio amplifier designs to the next level with semiconductors from Infineon.

Short introduction to Infineon´s class D audio solution
Short introduction to Infineon´s class D audio solution
World of class D
World of class D

PowIRaudio™ integrated amplifier reference designs

Reference design kit  Description
 IRAUDAMP15  35W / 4Ohms x 2 Channel Class D Audio Power Amplifier, Using the IR4311
 IRAUDAMP18  35W / 4Ohms x 2 Channel Class D Audio Power Amplifier, Using the IR4312
 IRAUDAMP16  70W / 4Ohms x 2 Channel Class D Audio Power Amplifier, Using the IR4302
 IRAUDAMP17  100W / 4Ohms x 2 Channel Class D Audio Power Amplifier, Using the IR4302
 IRAUDAMP19  Two-channel 100 W (4 Ohms) Half-bridge Class-D Audio Power Amplifier with single power supply
 IRAUDAMP12  130W / 4Ohms x 2 Channel Class D Audio Power Amplifier, Using the IR4301
 IRAUDAMP22  50W / 2Ohms x 2 Channel Class D Audio Power Amplifier, Using IR4322
 IRAUDAMP21  90W / 2Ohms x 2 Channel Class D Audio Power Amplifier, Using IR4321

 

Discrete audio reference designs

Reference design kit Description
IRAUDAMP9 Single channel 1700 W (2 Ω ) Half-bridge Class-D Audio Power Amplifier
IRAUDAMP4A Two-channel 120W Half-bridge Class-D Audio Power Amplifier
IRAUDAMP5 120W x 2 Channel Class D Audio Power Amplifier Using the IRS2092S and IRF6645
IRAUDAMP7D 25W-500W Scalable Output Power Class D Audio Power Amplifier Reference Design. Using the IRS2092 Protected Digital Audio Driver
IRAUDAMP7S 25W-500W Scalable Output Power Class D Audio Power Amplifier Reference Design. Using the IRS2092S Protected Digital Audio Driver
IRAUDAMP10 Two-Channel 300 W/CH Half-Bridge Class D Audio Power Amplifier
IRAUDAMP6 250W/8Ohm x 2 Channel Class D Audio Power Amplifier
IRAUDAMP11 120W x 3 Channel Class D Audio Power Amplifier
IRAUDAMP8 120W x 4 Channel Class D Audio Power Amplifier Using the IRS2093M and IRF6665

 

Audio power supply reference designs

Reference design kit Description
IRAUDPS1 12V System 250W-1000W Scalable Audio Power Supply
IRAUDPS3 +/-30V Power Supply for Class-D Audio Amplifier featuring the IRS27952S Resonant Half Bridge controller