| Raj Nambiar 06/23/09 05:59 Read: 555 times Dubai Uae |
#166382 - Bigget reset capacitor and resistor Responding to: Kai Klaas's previous message |
Previously, I used to use bigger reset capacitor and resistor to get longer reset times. How does this method fare compared to a brown-out detector as a Vcc rise time solution? I stopped it because of the common belief that a bigger capacitor can harm the reset circuitry since it is capable of discharging through the reset pin. Please comment. |
| Topic | Author | Date |
| soft-start powersupply and controllers | Raj Nambiar | 06/19/09 06:24 |
supervisor chip or processor with good brownout detection  | Per Westermark | 06/19/09 06:31 |
| Per gives a good solution if you can tolerate restarts | Erik Malund | 06/19/09 07:36 |
| Long rise times of Vcc are critical! | Kai Klaas | 06/19/09 07:52 |
| replace the 7805 | Erik Malund | 06/19/09 08:14 |
| Lot of information | Raj Nambiar | 06/20/09 01:44 |
| look at PowerTrends (TI) | Erik Malund | 06/20/09 08:56 |
| Some answers... | Kai Klaas | 06/20/09 09:19 |
| Bigget reset capacitor and resistor | Raj Nambiar | 06/23/09 05:59 |
| it is NOT the capacitor value | Erik Malund | 06/23/09 06:33 |
| Thanks Erik | Raj Nambiar | 06/23/09 07:34 |
| I partially disagree | Daniel Contarino | 06/23/09 18:58 |
| disagree with what? | Erik Malund | 06/24/09 05:49 |
| With thinking only in a reset chip. | Daniel Contarino | 06/24/09 06:39 |
| Use the reset chip to reset the powersupply | Raj Nambiar | 06/24/09 22:52 |
| How about $0.15 | Oliver Sedlacek | 06/25/09 04:46 |
| A small clarification | Raj Nambiar | 06/24/09 23:11 |
| 3 pin regulators with uvlo | Raj Nambiar | 06/25/09 01:07 |
| Eh ? | Steve M. Taylor | 06/25/09 02:26 |
| Only a clarification | Raj Nambiar | 06/25/09 05:49 |
| Steve, I meant turning on MCU supply | Raj Nambiar | 06/26/09 03:28 |
| and power down | Erik Malund | 06/25/09 05:21 |
| Erik, brown-out is handled by Silabs MCU!! | Raj Nambiar | 06/26/09 03:34 |
| Did I miss that? | Erik Malund | 06/26/09 06:01 |
| But Erik... | Raj Nambiar | 06/26/09 13:17 |
| In application notes, direct pull-ups have been used... | Raj Nambiar | 06/26/09 13:32 |
| some idiot, not there any more ... | Erik Malund | 06/26/09 16:46 |
| You seem to be wrong about the capacitor, Erik | Raj Nambiar | 07/01/09 09:31 |
| Not necessarily... | Kai Klaas | 07/01/09 12:30 |
| the risetime has nothing to do with reset ... unless | Erik Malund | 07/01/09 14:45 |
| which SiLabs part? | Andy Peters | 07/01/09 15:07 |
| Andy.. | Raj Nambiar | 07/02/09 07:07 |
| SILabs urban legends | Erik Malund | 07/02/09 08:20 |
| Interesting... | Kai Klaas | 07/02/09 09:12 |
| you may | Erik Malund | 07/02/09 11:23 |
| Thank you, I really appreciate it! | Kai Klaas | 07/02/09 13:07 |
| Clarifying, Erik, Kai | Raj Nambiar | 07/03/09 04:58 |
| The reset from the supply monitor will be there | Erik Malund | 07/03/09 06:50 |
| Good advice... | Kai Klaas | 07/09/09 10:06 |
I am guilty of not recalling all differences | Erik Malund | 07/09/09 12:16 |
| Only open-drain but not push-pull! | Kai Klaas | 07/03/09 07:47 |
| Good one, Kai | Raj Nambiar | 07/06/09 04:56 |
| why the 'love' of the MAX1232? | Erik Malund | 07/06/09 07:04 |
| True, Erik | Raj Nambiar | 07/06/09 07:30 |
| Have you seen this post? | Kai Klaas | 07/06/09 07:38 |
| Have you seen this post? | Erik Malund | 07/06/09 07:51 |
| Turn on your brain, Erik, and read what I wrote! | Kai Klaas | 07/06/09 07:53 |
| a picture is worth 1000 words | Erik Malund | 07/06/09 08:15 |
| So you haven't read the words?? | Kai Klaas | 07/06/09 08:39 |
| I was suggesting him the MAX1232... | Kai Klaas | 07/06/09 07:37 |
| Well, even more demanding... | Kai Klaas | 06/30/09 10:38 |
| Bigger, not bigget | Raj Nambiar | 06/23/09 06:00 |
| Only external electronics can help you | Furno G.Luca | 06/27/09 03:43 |
| Scheme to provide fast turn-on after full discharge | Kai Klaas | 06/28/09 19:24 |
| Regulator with output enable | Oliver Sedlacek | 06/29/09 04:21 |
| You never exactly know what you get... | Kai Klaas | 06/29/09 06:28 |
| Bypass caps | Oliver Sedlacek | 06/30/09 02:56 |
| Please don't stress this scheme too much... | Kai Klaas | 06/30/09 09:43 |