max232 cap

[homemade24]

I looking at using a max232 and it show 2 charge pump caps. anything special
about these or will any elect. cap the right size work
thanks

 

[ericgibbs]

I looking at using a max232 and it show 2 charge pump caps. anything special
about these or will any elect. cap the right size work
thanks

hi,
Electrolytics are often used with no problems, use the recommended values with a 16Vwkg rating.

 

[Boncuk]

Hi,

use the MAX233 - no external charge pump caps - same function. Everything is on board already.

Boncuk

 

[petrv]

Yes that's correct. But you can get the 232 chip significantly cheaper, even including the price of the caps.

 

[philba]

also, be aware that there is an A version (232 vs 232A) that uses smaller caps. I prefer the A since I can use ceramics.

 

[homemade24]

thanks
so I guess my option are
232 with Electrolytics cap of the right value
233 no caps
232A smaller ceramic cap

 

[DigiTan]

I've used monolithics quite successfully in at least 5 designs. Like any other charge pump, just make sure they're voltage-rated higher than your output voltage.