IRAUDAMP16: 70W or 130W (with heatsink) x2 @ 4Ω, ±13 ~ ±31V in

Summary

The IRAUDAMP16 reference design is a two-channel, 70 W/ch (4 Ω/±23 V; no heatsink)/ 130 W/ch (4 Ω/±31 V; with heatsink) half-bridge Class D audio power amplifier.

This reference design demonstrates how to use the IR4302 IC, 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.

Possible applications include: AV receivers, home theater systems, mini component stereos, powered speakers, subwoofers, musical instrument amplifiers, and car audio amplifiers.

(Infineon Technologies bought International Rectifier)

Specifications

Manufacturer	Infineon Technologies
Category	Audio Amplifiers
Eval Board Part Number	IRAUDAMP16-ND
Eval Board Supplier	Infineon Technologies
Eval Board	Board not Stocked
Amplifier Type	Class D
Number of Outputs	Stereo
Output Power (RMS) @ Load	70 W x 2 @ 4 Ω (no heatsink) 130 W x 2 @ 4 Ω (with heatsink)
Voltage In	±13 ~ ±23 V (w/o heatsink) ±13 ~ ±31 V (w/ heatsink)
THD+N (1kHz) @ Conditions	< 0.03%, 530mW ~ 90W (4 Ω, ±31 V) < 0.023%, 600mW ~ 50W (4 Ω, ±23 V)
Features	Over Current Protection Over Voltage Protection Synchronizable Thermal Protection Under Voltage Protection, Brown-Out
Efficiency @ Conditions	>85%, 31V in, 10 ~ 140 W @ 4 Ω (w/heatsink)
Standby Current [Typical]	- Not Given
Quiescent Current [Typical]	1.5 mA
Component Count + Extras	182 + 17
Application / Target Market	Audio: Hi Fi Audio: Home Theater Systems Audio: MP3 Players Audio: Powered Speakers Automotive Portable Devices
Design Author	Infineon Technologies
Main I.C. Base Part	IR4302
Quiescent Current [Maximum]	3 mA
Standby Current [Maximum]	- Not Given
Date Created By Author	2009-01
Date Added To Library	2013-06