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| 14.4V ground reference for ADC |
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| Arjunan M R:
--- Quote from: Simon on May 31, 2019, 01:27:05 pm ---Really? usually the reverse standoff in a few volts less than the breakdown voltage. --- End quote --- I thought that the reverse standoff voltage is the difference between when the TVS turns on and turns of. |O |O There is diodes with higher standoff in rs components |O |O --- Quote from: Simon on May 31, 2019, 01:42:06 pm ---https://uk.rs-online.com/web/c/semiconductors/discrete-semiconductors/tvs-diodes/?redirect-relevancy-data=636F3D3126696E3D4931384E53656172636847656E65726963266C753D656E266D6D3D6D61746368616C6C7061727469616C26706D3D5E2E2A2426706F3D31333326736E3D592673723D52656469726563742673743D43415443485F414C4C5F44454641554C542673633D592677633D4E4F4E45267573743D7476732064696F6465267374613D7476732064696F646526&r=f&searchHistory=%257B%2522enabled%2522%253Atrue%257D&applied-dimensions=4294702910 --- End quote --- |
| Arjunan M R:
I chose this one. It has a maximum reverse standoff voltage of 24V. Minimum breakdown voltage of 26.5V and maximum clamping voltage of 70V. This will be okay. |
| Arjunan M R:
--- Quote from: Arjunan M R on May 31, 2019, 02:13:57 pm ---I chose this one. It has a maximum reverse standoff voltage of 24V. Minimum breakdown voltage of 26.5V and maximum clamping voltage of 70V. This will be okay. --- End quote --- Its differential resistance is too high |
| Arjunan M R:
Ok, final decision. I am going to use this TVS diode sm15t30ca https://in.rsdelivers.com/product/stmicroelectronics/sm15t30ca/stmicroelectronics-sm15t30ca-bi-directional-tvs/4861253 Diode Configuration Single Maximum Operating Temperature +150 °C Number of Elements per Chip 1 Length 7.15mm Maximum Clamping Voltage 53.5V Minimum Breakdown Voltage 28.5V Brand STMicroelectronics Maximum Peak Pulse Current 187A Package Type SMC Mounting Type Surface Mount Minimum Operating Temperature -55 °C Width 6.25mm Test Current 1mA Maximum Reverse Stand-off Voltage 25.6V Maximum Reverse Leakage Current 1µA Height 2.45mm Pin Count 2 Dimensions 7.15 x 6.25 x 2.45mm Direction Type Bi-Directional Peak Pulse Power Dissipation 1500W |
| Arjunan M R:
Here is the datasheet of sm15t30ca https://documents.rs-online.com/techlib://itc_doclist_GB.htm?stockno=4861253 |
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