Timeline for ESD Protection for UART and I2C
Current License: CC BY-SA 4.0
9 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 28 at 9:02 | comment | added | Tim Williams | @AhtishamA Slow down how much? -- What range of resistor values would affect which kind of communications, and in what way? Given the calculations/simulations linked above, what effect would the same resistor values have on ESD? | |
| Jul 28 at 7:55 | comment | added | Ahtisham A | You suggested something like this Connector ->TVS -> resistor -> MCU(IC pin) That resistor can slow down or interrupt I2C and UART communication. | |
| Jul 28 at 7:51 | comment | added | Tim Williams | I'm afraid I cannot parse that. | |
| Jul 28 at 7:50 | comment | added | Ahtisham A | Adding a resistor before the IC pin will not affect communication because it is placed in line with the MCU pin. This will create an RC filter. If I cannot add the resistors, will my system be able to handle the residual ESD after the TVS diode? | |
| Jul 28 at 7:48 | comment | added | Tim Williams | @AhtishamA Parts are easily found at all major distributors. For example: digikey.com/short/903j0thj | |
| Jul 28 at 7:45 | comment | added | Ahtisham A | Great suggestion, Tim Williams. Please provide me with diode options, preferably array types, so I can find the best one that suits my needs. | |
| Jul 27 at 5:48 | comment | added | Tim Williams | Yes, or even better to say, "inside of" the diode. So, in order: connector, TVS, resistor, IC pin. | |
| Jul 27 at 5:32 | comment | added | Simon Fitch | When you say "transposing", do you mean moving the resistor after the diode? | |
| Jul 27 at 0:59 | history | answered | Tim Williams | CC BY-SA 4.0 |