IRAUDAMP5: 170W x2 @ 4Ω, ±25 ~ 35V in

Summary

The IRAUDAMP5 reference design is a two-channel, 120 W half-bridge, Class D audio power amplifier.

This reference design demonstrates how to use the IRS2092S Class D audio controller and gate driver IC, implement protection circuits, and design an optimum PCB layout using the IRF6645 DirectFET MOSFETs. The resulting design requires no heatsink 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 IRAUDAMP5-ND
Eval Board Supplier Infineon Technologies
Eval Board Board not Stocked
Amplifier Type Class D
Number of Outputs Stereo
Output Power (RMS) @ Load 170 W x 2 @ 4 Ω
Voltage In ±25 ~ 35 V
THD+N (1kHz) @ Conditions < 0.004% @ 10 W (4 Ω)
< 0.005% @ 60 W (4 Ω)
< 0.01% @ 1 W (4 Ω)
< 0.01% @ 100 W (4 Ω)
Features Click and Pop Suppression
Over Current Protection
Over Voltage Protection
Temperature Compensation
Thermal Protection
Under Voltage Protection, Brown-Out
Efficiency @ Conditions >85%, 20 ~ 168 W @ 4 Ω (single ch), ±35V
Standby Current [Typical] ±100 mA
Quiescent Current [Typical] 200 mA
Component Count + Extras 266 + 91
Application / Target Market Audio: Hi Fi
Audio: Home Theater Systems
Audio: Powered Speakers
Automotive
Portable Devices
Design Author Infineon Technologies
Main I.C. Base Part IRF6645
IRS2092
Quiescent Current [Maximum] - Not Given
Standby Current [Maximum] - Not Given
Date Created By Author 2007-07
Date Added To Library 2025-10

Eval Board

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Support Documents & Media

IRS2092 - Datasheet IRF6645 - Datasheet IRAUDAMP5 - User Guide

Media

IRAUDAMP5_Schematic_1_Full.png IRAUDAMP5_Schematic_2_Full.png IRAUDAMP5_Schematic_3_Full.png IRAUDAMP5_Board_Full.jpg IRAUDAMP5_Chart_1_Full.png IRAUDAMP5_Chart_2_Full.png IRAUDAMP5_Chart_3_Full.png IRAUDAMP5_Chart_4_Full.png