INTERNATIONAL RECTIFIER - THE POWER MANAGEMENT LEADER
Audio Reference Designs
International Rectifier offers a complete class D audio power amplifier design, which contains protection functions and house keeping power supplies for ease of use. This reference design is intended to implement protection circuits and design an optimum PCB layout.

Download this overview for a full feature list of each kit.
Featured Kits
IRAUDAMP5
Two-channel 120 W Half-bridge Class-D Audio Power Amplifier
  • 120W x 2 Channels (THD=1%, 1kHZ)
  • 0.005% THD+N @ 60W, 4 Ohms
  • 170 µV Distortion, IHF-A weighted, AES-17 filter
  • 96% Efficiency @ 120W, 4 Ohms, Single Channel Driven, Class-D Stage
  • OCP, OVP, UVP, DC protection & OTP
  • Self-oscillating half-bridge topology with optional clock synchronization
  • Featuring IRS2092S Controller and Gate Driver IC and IRF6645 DirectFET MOSFETs
IRAUDAMP4
Two-channel 120 W Half-bridge Class-D Audio Power Amplifier
  • 120 W x 2 channels, (THD=1%, 1kHZ)
  • 0.004% THD+N distortion @ 60W, 4 Ohms
  • Residual noise 52 µV, IHF-A weighted, AES-17 filter
  • 96% efficiency @ 120W, 4 Ohms, Single Channel Driven, Class-D Stage
  • OCP, OVP, UVP, DC protection & OTP
  • Self-oscillating half-bridge topology with optional clock synchronization
  • Featuring IRS20955S Gate Driver and IRF6645 DirectFET MOSFETs

ARCHIVED KITS
A limited supply of these archived reference designs still may be available. To learn if quantities are available in your area, please click on the reference design part number listed below, then select your region and click on “Check Availability.”
Reference Design Part Number Description
IRAUDAMP3 IRS20124S Complete 6-channel 120W half-bridge Class D Audio power amplifier
IRAUDAMP1 IR2011S Audio reference design for High Power Class D Audio Power Amplifier

 
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