IRAUDAMP15: 35W x 2 @ 4Ω, 18 ~ 31V in, Class D

Summary

The IRAUDAMP15 reference design is a two-channel, 35W/ch half-bridge Class D audio power amplifier with single power supply.

The reference design demonstrates how to use the IR4311 IC with single power supply, implement protection circuits, and design an optimum PCB layout using PowIRaudio integrated Class D IC.

This reference design does not require additional heatsink or 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	IRAUDAMP15-ND
Eval Board Supplier	Infineon Technologies
Eval Board	Normally In Stock
Amplifier Type	Class D
Number of Outputs	Stereo
Output Power (RMS) @ Load	35 W x 2 @ 4 Ω
Voltage In	18 ~ 31 V
THD+N (1kHz) @ Conditions	< 0.03% @ 200 mW ~ 22 W (4 Ω, ±31 V)
Features	Over Current Protection Over Voltage Protection Temperature Compensation Thermal Protection Under Voltage Protection, Brown-Out
Efficiency @ Conditions	>80%, 4 ~ 35 W @ 4 Ω (31V)
Standby Current [Typical]
Quiescent Current [Typical]	90 mA
Component Count + Extras	116 + 5
Application / Target Market	Audio: Hi Fi Audio: Powered Speakers Automotive Computers
Design Author	Infineon Technologies
Main I.C. Base Part	IR4311
Quiescent Current [Maximum]	- Not Given
Standby Current [Maximum]	- Not Given
Date Created By Author	2009-01
Date Added To Library	2017-05