LM3885

[kindhornman]

Looking for information on a current replacement for the now obsolete LM3885 chip amp, I see the LM3886 is still available but it is much more power output than necessary, is there a good replacement ic closer to the output of the older 3885, I am only looking for a very low distortion chip to use at 4 ohms working at about 15 watts output, 30 watts max peak output. Do I just go with the 3886 and limit the output, it seems it would be overkill to operate a dome tweeter only in a two way active system? Thanks for any advice

 

[Khron]

How and why would you "limit the output"?

Also, if you'll look at figure 37 on page 14 of the LM3886 datasheet, you'll see a nice little graph of (maximum) power output versus supply voltage.

Power amplifiers don't "create" output power, nor do they "push" it into whatever load they're connected.

Given a certain power supply voltage, any two amplifiers can and will put out roughly the same power into the same load (assuming neither runs into any current-limiting situations, or doesn't burn itself up).

If your LM3885 is powered with, say, +/-15V, the LM3886 will work at least just as well. That being said, you've mentioned nothing about the usage scenario, so.....