Class D Audio Solutions

Class D Audio ICs
PowIRaudio Integrated Amplifiers

Class D amplifiers are fast becoming the preferred solution for professional and home audio and video systems and we offer a comprehensive range of discrete and integrated ICs that simplify high-efficiency Class D amplifier design. These include digital audio drivers, Class D audio MOSFETs, and PowIRaudio™ integrated power modules that combine digital audio controller ICs and MOSFETs in a compact PQFN package.

Product Selection Guide
TitleSizeDateVersion
NEW! Power Management Selection Guide 2016；EN4.7 MB22 Feb 201600_00
Application Notes
TitleSizeDateVersion
Audio Power Quad Flat Pack No-Leads (PQFN) Board Mounting Application Note；EN881 KB01 Jul 2013
IRS20957S Functional Description；EN336 KB09 Nov 2008
IRS2052M Functional Description；EN803 KB02 Apr 2011
Class D Audio Amplifier Basics；EN305 KB19 May 2004
IRS2093M Functional Description；EN595 KB13 Mar 2009
IR Class D Audio IC Operation with Single Output Power Supply；EN1.2 MB01 Apr 2005
PCB Layout with IR Class D Audio Gate Drivers；EN1.3 MB28 Sep 2007
IRS2053M Functional Description；EN667 KB11 Dec 2010
Bridging Class D Amplifiers；EN471 KB28 Jan 2014
IRS20954S and IRS20957S Comparison；EN41 KB01 Apr 2005
IRS20955S and IRS20957S Comparison；EN46 KB21 May 2008
IRS2092 and IRS2092S Functional Description；EN1.2 MB28 Sep 2007
Class D Amplifier Peformance Relationship to MOSFET Parameters；EN236 KB19 May 2004
Product Brief
TitleSizeDateVersion
IRS2092 Integrated Class D Audio Driver IC with PWM Modulator；EN1.3 MB05 Feb 2013
IRS2053 3 Channel Integrated Class D Audio Driver IC with PWM Modulator；EN199 KB29 Jan 2008
Compact PowIRaudio Modules for Class D Amplifier Design；EN250 KB20 Oct 2011
IRS2093 Four Channel Integrated Class D Audio IC with PWM Modulator；EN172 KB29 Jan 2008
IRS2052M 2-Channel Class D Audio Driver IC；EN116 KB20 Oct 2011
Article
TitleSizeDateVersion
Scalable Class-D Design Method；EN484 KB03 Aug 2006
Design Features Energy Efficiency with Class D Audio Modules；EN660 KB18 Jun 2001
Leistungsstarker Chipsatz；EN196 KB03 Aug 2006
Advances in Power Devices Driving Class-D Amplifier Progress；EN1.1 MB01 Mar 2013
How Do You Design a 100W + 100W Class-D Amplifier；EN1.9 MB16 Mar 2006
How to design 100W + 100W Class D Amplifier；EN1 MB16 Mar 2014
Go Green with Class D Audio Medium Power Amplifiers；EN1.1 MB15 Aug 2003
Go Green With 100-W And Higher Audio Power Amplifiers；EN29 KB03 Aug 2006
A Scalable Approach to Class D Design Challenges；EN529 KB15 Aug 2003
A Scalable Approach to Class-D Design Challenges；EN925 KB15 Aug 2003
Differentiating Cost-Competitive Class D Amplifier Designs；EN771 KB01 Feb 2008
Evaluation Boards
BoardFamilyDescriptionStatus
IRAUDAMP12130 W x 2 channels, (THD=10%, 1kHz, 4 Ohms). 0.02% THD+N distortion @ 50W, 4 Ohms. Residual noise 250 µV, IHF-A weighted, AES-17 filter. 96% Efficiency @ 130W, 4 Ohms, Class-D Stage. OCP, OVP, UVP,DC protection and OTP. Self-oscillating half-bridge topology with optional clock synchronization. Featuring IR4301 PowIRaudio™ integrated Class D IC.IR4301Mactive and preferred
IRAUDAMP19100 W x 2 channels, (THD=10%, 1kHz, 4 Ohms). 0.02% THD+N distortion @ 10W, 4 Ohms. Residual noise 230 µV, IHF-A weighted, AES-17 filter. 96% Efficiency @ 75W, 4 Ohms, Class-D Stage. OCP, OVP, UVP and OTP. Self-oscillating half-bridge topology. Featuring IR4301 PowIRaudio™ integrated Class D IC.IR4301Mactive and preferred
IRAUDAMP1670 W x 2 channels, (THD=10%, 1kHz, 4 Ohms). 0.015% THD+N distortion @ 30W, 4 Ohms. Residual noise 250 µV, IHF-A weighted, AES-17 filter. 96% Efficiency @ 70W, 4 Ohms, Class-D Stage. OCP, OVP, UVP,DC protection and OTP. Self-oscillating half-bridge topology with optional clock synchronization. Featuring IR4302 PowIRaudio™ integrated Class D IC.IR4302Mactive and preferred
IRAUDAMP17100 W x 2 channels, (THD=10%, 1kHz, 4 Ohms). 0.008% THD+N distortion @ 30W, 4 Ohms. Residual noise 220 µV, IHF-A weighted, AES-17 filter. 96% Efficiency @ 100W, 4 Ohms, Class-D Stage. OCP, OVP, UVP and OTP. Self-oscillating half-bridge topology. Featuring IR4302 PowIRaudio™ integrated Class D IC.IR4302Mactive and preferred
IRAUDAMP1535 W x 2 channels, (THD=10%, 1kHz, 4 Ohms). 0.02% THD+N distortion @ 5W, 4 Ohms. Residual noise 250 µV, IHF-A weighted, AES-17 filter. 96% Efficiency @ 35W, 4 Ohms, Class-D Stage. OCP, OVP, UVP and OTP. Self-oscillating half-bridge topology. Featuring IR4311 PowIRaudio™ integrated Class D IC.IR4311Mactive and preferred
IRAUDAMP1835 W x 2 channels, (THD=10%, 1kHz, 4 Ohms). 0.018% THD+N distortion @ 3W, 4 Ohms. Residual noise 180 µV, IHF-A weighted, AES-17 filter. 96% Efficiency @ 35W, 4 Ohms, Class-D Stage. OCP, OVP, UVP and OTP. Self-oscillating half-bridge topology. Featuring IR4312 PowIRaudio™ integrated Class D IC.IR4312Mactive and preferred
IRAUDAMP21Output Power: 90W x 2 channels (10%THD+N 2Ohms load no heatsink). 135W x 2 channels (10%THD+N 2Ohms load *with heatsink),. Multiple Protection Features: Over-current protection (OCP), high and low side. Over-voltage protection (OVP),. Under-voltage protection (UVP), high and low side. DC-protection (DCP),. Over-temperature protection (OTP). PWM Modulator: Self-oscillating half-bridge topology with optional clock synchronization.IR4321Mactive and preferred
IRAUDAMP22Output Power 50W x 2 channels (10%THD+N 2Ohms load no heatsink). 100W x 2 channels (10%THD+N 2Ohms load *with heatsink),. Multiple Protection Features: Over-current protection (OCP), high and low side. Over-voltage protection (OVP),. Under-voltage protection (UVP), high and low side. DC-protection (DCP),. Over-temperature protection (OTP). PWM Modulator: Self-oscillating half-bridge topology with optional clock synchronization.IR4322Mactive and preferred
IRAUDAMP10300 W x 2 channels, (THD=1%, 1kHz, 4 Ohms). 0.008% THD+N distortion @ 100W, 4 Ohms. Residual noise 220 µV, IHF-A weighted, AES-17 filter. 90% Efficiency @ 300W, 4 Ohms, Class-D Stage. OCP, OVP, UVP and OTP. Self-oscillating half-bridge topology with optional clock synchronization. Featuring IRS2052M Controller and Gate Driver IC and IRF6775 DirectFET MOSFETs.IRS2052Mactive and preferred
IRAUDAMP5120W 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 and OTP. Self-oscillating half-bridge topology with optional clock synchronization. Featuring IRS2092S Controller and Gate Driver IC and IRF6645 DirectFET MOSFETs.IRS2092SPBFactive and preferred
IRAUDAMP7D250 W x 2 channels, (THD=1%, 1kHz, 4 Ohms). 0.05% THD+N distortion @ 120W, 4 Ohms. Residual noise 200 µV, IHF-A weighted, AES-17 filter. All through-hole components on single layer PCB. OCP, OVP, UVP, DC protection and OTP. Half bridge/ full bridge selector. Featuring IRS2092 Gate Driver IC and IRFI4019H-117P MOSFETs.IRS2092SPBFactive and preferred
IRAUDAMP7S250 W x 2 channels, (THD=1%, 1kHz, 4 Ohms). 0.01% THD+N distortion @ 120W, 4 Ohms. Residual noise 200 µV, IHF-A weighted, AES-17 filter. Single layer PCB. OCP, OVP, UVP, DC protection and OTP. Half bridge/ full bridge selector. Featuring IRS2092S Gate Driver IC and IRFI4019H-117P MOSFETs.IRS2092SPBFactive and preferred
IRAUDAMP91700 W Single channel (2Ohms load THDN=10%, 1kHz). 1% THD+N distortion @ 1200W, 2 Ohms +/-75V. Residual noise 290 µV, IHF-A weighted, AES-17 filter. 94% efficiency @ 1200W, 2 Ohms, Single Channel Driven, Class-D Stage. OCP, OVP, UVP, DC protection, HOPS ( High Output peak Shutdown Protection) and OTP. Self-oscillating half-bridge topology with optional clock synchronization. Featuring IRS2092S Gate Driver ( with external BJT buffering ) and IRFB4227PBF 200V MOSFETs.IRS2092SPBFactive and preferred
IRAUDAMP8120 W x 4 channels, (THD=1%, 1kHz, 4 Ohms). 0.015% THD+N distortion @ 60W, 4 Ohms. Residual noise 200 µV, IHF-A weighted, AES-17 filter. 90% Efficiency @ 120W, 4 Ohms, Class-D Stage. OCP, OVP, UVP and OTP. Self-oscillating half-bridge topology with optional clock synchronization. Featuring IRS2093M Controller and Gate Driver IC and IRF6665 DirectFET MOSFETs.IRS2093MPBFactive and preferred
IRAUDAMP4A120 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 and OTP. Self-oscillating half-bridge topology with optional clock synchronization. Featuring IRS20957S Gate Driver and IRF6645 DirectFET MOSFETs.IRS20957SPBFactive and preferred
IRAUDAMP6250 W x 2 channels (8 Ohms load THD=1%, 1kHZ). 0.005% THD+N distortion @ 125W, 8 Ohms. Residual noise 90 µV, IHF-A weighted, AES-17 filter. 96% efficiency @ 250W, 8 Ohms, Single Channel Driven, Class-D Stage. OCP, OVP, UVP, DC protection and OTP. Self-oscillating half-bridge topology with optional clock synchronization. Featuring IRS20957S Gate Driver and IRF6785 DirectFET MOSFETs.IRS20957SPBFactive and preferred
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