| ??? 02/07/06 17:04 Read: times |
#109429 - well, yes and no Responding to: ???'s previous message |
Th LPC can source 20mA but (most?) SILbs derivatives can source 100mA. Thus, if the issue is simplicity, switch to SILabs.
Since any external transistor will "drop a diode" and 0.6V is 20% of your 3v3 that will not solve your problem. A question: how is the 3v3 derived? from a higher voltage?, from a bettery? from?? Erik |
| Topic | Author | Date |
| Powering a peripheral from a pin | 01/01/70 00:00 | |
| well, yes and no | 01/01/70 00:00 | |
| Simple, cheap, small | 01/01/70 00:00 | |
| Thanks Rob | 01/01/70 00:00 | |
| consider adding an RC circuit if ... | 01/01/70 00:00 | |
| Good point | 01/01/70 00:00 | |
| Indeed | 01/01/70 00:00 | |
| Nice solution! | 01/01/70 00:00 | |
| How about 4N35? | 01/01/70 00:00 | |
| Mmmh, I doubt it | 01/01/70 00:00 | |
| Bipolar Transistors | 01/01/70 00:00 | |
| Bipolar Transistors | 01/01/70 00:00 | |
MOSFET | 01/01/70 00:00 | |
| BC327 and 4mA base current | 01/01/70 00:00 |