High efficiency class D @ 22V, better than TK2050?

[zerokelvin99]

Hi everyone,

I am building another boombox, and am a little intimidated by the choice of class D amplifiers available (I'm looking at you TI!). Last I looked there was pretty much just the TK2050 - but I assume things have moved on !

Can anyone advise? I'm looking for maximum efficiency & output on 22V supply (yes, I know it's limited by rails) - 2 / 4 ch required.

Thanks in advance, your time is appreciated 🙂

 

[ledsscp7]

Oriel Indra

 

[zerokelvin99]

Thanks for the reply

Unfortunately, googles Russian translation seems to be as poor as my knowledge of the language (non existent). Do you have any links to english sources? Can't find any myself

 

[zerokelvin99]

How would a TPA3116 fare? Quiescent current is at 50mA and seems to fit the bill everywhere else? 🙂

 

[ledsscp7]

Simple version

Simple version

 

[zerokelvin99]

Apologies, perhaps I should have stated my ability: I work as a design engineer by trade, with limited electronics. Experienced in microprocessors, basic analogue circuit design & SMD soldering - but this seems a stretch of my expertise. Was looking for an easier solution? (IE kit or premade)

Thanks 🙂

 

[29285]

How would a TPA3116 fare? Quiescent current is at 50mA and seems to fit the bill everywhere else? 🙂

Yes, looks like a simple solution fitting your needs. Also there are cheap readily built little modules on the market, have a look at TPA3116 thread (very long!)

 

[zerokelvin99]

I have started trawling through that already! Seems like it ticks every box :-D

Thanks!