| ??? 12/26/07 11:00 Read: times |
#148704 - Wrong - there's nothing wrong with direct drive... Responding to: ???'s previous message |
... provided that you observe the current and power dissipation limits specified in the Datasheet.
Note that there are likely to be per-pin, per-port, and per-package limits - and you must remain within all of them! Some people even connect LEDs direct to port pins without a series resistor; relying upon the 'on' resistance of the driver to limit the current - there was some discussion about this a while back, if you can find it... |
| Topic | Author | Date |
| problem in blinking LED | 01/01/70 00:00 | |
| use a transistor to drive your LED | 01/01/70 00:00 | |
| How did you connect the LED? | 01/01/70 00:00 | |
| RE: How did you connect the LED? | 01/01/70 00:00 | |
| and where goes the other end? | 01/01/70 00:00 | |
| RE: and where goes the other end? | 01/01/70 00:00 | |
| Wrong way up! | 01/01/70 00:00 | |
| the other way around | 01/01/70 00:00 | |
| check anode/cathode of led | 01/01/70 00:00 | |
| What LED? | 01/01/70 00:00 | |
| The LED is a factor! | 01/01/70 00:00 | |
| Built-in resistors? | 01/01/70 00:00 | |
| changing the polarity helps | 01/01/70 00:00 | |
| Need more detail | 01/01/70 00:00 | |
| Help others | 01/01/70 00:00 | |
| solution tht worked | 01/01/70 00:00 | |
| neve drive led directly with an 8051 , always | 01/01/70 00:00 | |
Wrong - there's nothing wrong with direct drive... | 01/01/70 00:00 | |
| Well done | 01/01/70 00:00 |