IRAUDAMP6: 250W x2 @ 8Ω, ±38 ~ 75V in

Summary

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.

Specifications

Manufacturer	Infineon Technologies
Category	Audio Amplifiers
Eval Board Part Number	IRAUDAMP6-ND
Eval Board Supplier	Infineon Technologies
Eval Board	Board not Stocked
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 Synchronizable Thermal Protection Under Voltage Protection, Brown-Out
Efficiency @ Conditions	>86%, 50 ~ 380 W @ 8 Ω, ±73.5 V
Standby Current [Typical]	- Not Given
Quiescent Current [Typical]	±85 mA
Component Count + Extras	358 + 26
Application / Target Market	Audio: Hi Fi Audio: Home Theater Systems Audio: Powered Speakers
Design Author	Infineon Technologies
Main I.C. Base Part	IRF6785 IRS20957
Quiescent Current [Maximum]	- Not Given
Standby Current [Maximum]	- Not Given
Date Created By Author	2010-05
Date Added To Library	2013-08