IRAUDAMP6: 250W x2 @ 8Ω, ±38 ~ 75V in


The IRAUDAMP6 reference design is a two-channel, 250W/ch (8Ω) load half-bridge Class D audio power amplifier.

This reference design demonstrates how to use the IRS20957S Class D audio controller and gate driver IC, implement protection circuits, and design an optimum PCB layout using the IRF6785 DirectFET MOSFETs.

This reference design does not require increasing the size of the heatsink or require fan cooling for normal operation (one-eighth of continuous rated power).

The reference design provides all the required housekeeping power supplies for ease of use. The two-channel design is scalable for power and the number of channels.


Manufacturer Infineon Technologies
Category Audio Amplifiers
Eval Board Part Number IRAUDAMP6-ND
Eval Board Supplier Infineon Technologies
Eval Board Normally In Stock
Amplifier Type Class D
Number of Outputs Stereo
Output Power (RMS) @ Load 250 W x 2 @ 8 Ω
Voltage In ±38 ~ 75 V
THD+N (1kHz) @ Conditions < 0.004% @ 100 W (8 Ω, ±73.5 V)
Features Over Current Protection
Over Voltage Protection
Thermal Protection
Under Voltage Protection, Brown-Out
Efficiency @ Conditions >86%, 50 ~ 380 W @ 8 Ω, ±73.5 V
Component Count + Extras 358 + 26
Design Author Infineon Technologies
Application / Target Market Hi Fi Audio
Home Theater
Powered Speakers
Standby Current [Typical] - Not Given
Quiescent Current [Typical] ±85 mA
Quiescent Current [Maximum] - Not Given
Standby Current [Maximum] - Not Given
Main I.C. Base Part IRF6785
Date Created By Author 2010-05
Date Added To Library 2013-08

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