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Reference DesignInfineon

IRAUDAMP10 300W x 2 Channel Class D Audio Power Amplifier Reference Design

2-channel 300W/ch Class D audio amplifier reference design using the IRS2052M controller and IRF6775 DirectFET MOSFETs for high-efficiency audio applications.

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Overview

The IRAUDAMP10 is a high-performance reference design for a two-channel Class D audio power amplifier. It delivers 300W per channel into a 4Ω load at 1% THD+N, or up to 370W at 10% THD+N. The design is centered on the Infineon IRS2052M gate driver IC and IRF6775 DirectFET MOSFETs, achieving 90% efficiency at full power. It features a self-oscillating half-bridge topology with optional clock synchronization and integrated protection circuits for over-current, over-voltage, under-voltage, and over-temperature conditions. The document provides comprehensive technical specifications, connection setups, test procedures, performance graphs, and a complete bill of materials for the assembly.

Use Cases

  • AV receivers
  • Home theater systems
  • Mini component stereos
  • Powered speakers
  • Sub-woofers
  • Musical instrument amplifiers
  • Automotive aftermarket amplifiers

Topics

Infineon
IRS2052M
IRF6775
Class D Amplifier
Audio Power Amplifier
DirectFET
IRAUDAMP10
Reference Design
PWM Modulator
Gate Driver IC

Referenced Parts

IRF6665

Infineon

Q1A,C, Q2A,C, Q2B,D, Q1B,D IRF6665/6775M

IRF6775

Infineon

design an optimum PCB layout using IRF6775 DirectFET MOSFETs

IRS2052M

Infineon

IRS2052M Class D audio controller and gate driver IC

478-1429-1-ND

AVX

0805 C6, C7, C9, C10 478-1429-1-ND AVX Corporation

495-1315-ND

EPCOS

POLYPRO C13A, C13B 495-1315-ND EPCOS Inc

1N4148

Nexperia

D3 1N4148

NE5532AN

Texas Instruments

IC3 NE5532AN

1893K-ND

Keystone

40THR .500"L ALUM | Stand Off 1, Stand Off 2, Stand | Off 3, Stand Off 4 1893K-ND | Keystone | Electro-

399-1082-1-ND

Kemet

CERAMICX7R 0603 C4A, C4B 399-1082-1-ND Kemet

NE5532ANGOS-ND

ON Semiconductor

NOISE 8-DIP IC3 NE5532ANGOS-ND ON Semiconductor

P8010S-ND

Panasonic

1 SW-PB 6MM LIGHT TOUCH SW H=5 S2 P8010S-ND Panasonic - ECG

PT100XCT-ND

Panasonic

SMD R36, R37, R38, R39 PT100XCT-ND Panasonic - ECG

PT10AECT-ND

Panasonic

SMD R21A, R21B PT10AECT-ND Panasonic - ECG

PT470XCT-ND

Panasonic

SMD R43, R44, R47, R48 PT470XCT-ND Panasonic - ECG

RF071M2SCT-ND

Rohm

4 RF071M2STR DIODE 200V 700MA SOD123 D1A, D1B, D2A, D2B RF071M2SCT-ND Rohm Semiconductor

RHM1.00KCRCT-ND

Rohm

0805 SMD R3A, R3B RHM1.00KCRCT-ND Rohm Semiconductor

RHM1.0ARCT-ND

Rohm

SMD R19A, R19B RHM1.0ARCT-ND Rohm Semiconductor

RHM1.0KGCT-ND

Rohm

0603 SMD R13, R51, R52, R106, R108 RHM1.0KGCT-ND Rohm Semiconductor

RHM10.0KCRCT-ND

Rohm

0805 SMD R31, R31A, R31B, R40, R41 RHM10.0KCRCT-ND Rohm Semiconductor

RHM100KCRCT-ND

Rohm

0805 SMD R4A, R4B RHM100KCRCT-ND Rohm Semiconductor

RHM100KGCT-ND

Rohm

0603 SMD R0A, R0B, R23A, R23B RHM100KGCT-ND Rohm Semiconductor

RHM10GCT-ND

Rohm

R32A RHM10GCT-ND Rohm Semiconductor

RHM10KGCT-ND

Rohm

R71A, R71B, R104, R105 RHM10KGCT-ND Rohm Semiconductor

RHM120GCT-ND

Rohm

0603 SMD R2A, R2B RHM120GCT-ND Rohm Semiconductor

RHM15.0KCRCT-ND

Rohm

0805 SMD R30A, R30B RHM15.0KCRCT-ND Rohm Semiconductor

RHM2.2KARCT-ND

Rohm

0805 SMD R24A, R24B RHM2.2KARCT-ND Rohm Semiconductor

RHM2.2KGCT-ND

Rohm

0603 SMD R10 RHM2.2KGCT-ND Rohm Semiconductor

RHM3.3KGCT-ND

Rohm

0603 SMD R27A, R27B RHM3.3KGCT-ND Rohm Semiconductor

RHM3.9KGCT-ND

Rohm

0603 SMD R16A, R16B, R107 RHM3.9KGCT-ND Rohm Semiconductor

RHM33.0KCRCT-ND

Rohm

0805 SMD R22A, R22B RHM33.0KCRCT-ND Rohm Semiconductor

RHM4.7GCT-ND

Rohm

0603 SMD R14A, R14B, R18A, R18B RHM4.7GCT-ND Rohm Semiconductor

RHM47KGCT-ND

Rohm

0603 SMD R50, R55, R56, R57, R58 RHM47KGCT-ND Rohm Semiconductor

RHM5.6KGCT-ND

Rohm

0603 SMD R11, R15A, R15B RHM5.6KGCT-ND Rohm Semiconductor

RHM8.2KGCT-ND

Rohm

0603 SMD R12 RHM8.2KGCT-ND Rohm Semiconductor

445-1418-1-ND

TDK

10% 0805 C17C, C17D, C19A, C19B 445-1418-1-ND TDK Corporation

445-3945-1-ND

TDK

1210 C10A, C10B 445-3945-1-ND TDK Corporation

445-5074-1-ND

TDK

0603 C11, C12, C13, C14 445-5074-1-ND TDK Corporation