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| General Electronics Chat This forum is for general chat about electronics, eg: Dont know what a part does? Dont know how to read a circuit? Want to get an opinion? |
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22nd May 2008, 11:26 AM
| #1 |
 max232 cap
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 | |
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22nd May 2008, 12:20 PM
| #2 | |
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Electrolytics are often used with no problems, use the recommended values with a 16Vwkg rating.
__________________ Eric " Good enough is Perfect " I will NOT answer PM's requesting technical help, please use the Forum PIC tutorials: Nigel's www.winpicprog.co.uk/ Bill's: www.blueroomelectronics.com/ | ||
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22nd May 2008, 12:54 PM
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Hi, use the MAX233 - no external charge pump caps - same function. Everything is on board already. Boncuk | |
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22nd May 2008, 04:12 PM
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Yes that's correct. But you can get the 232 chip significantly cheaper, even including the price of the caps.
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22nd May 2008, 04:46 PM
| #5 |
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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.
Last edited by philba; 22nd May 2008 at 04:46 PM. | |
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22nd May 2008, 09:28 PM
| #6 |
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thanks so I guess my option are 232 with Electrolytics cap of the right value 233 no caps 232A smaller ceramic cap | |
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23rd May 2008, 06:54 AM
| #7 |
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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.
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| cap, max232 |
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