Timeline for What is the purpose of these diodes in this opto isolator circuit?
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
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| Feb 12, 2019 at 5:06 | comment | added | AnalogKid | Note - the 36 V value is defined on page 3 of the datasheet. | |
| Feb 12, 2019 at 5:00 | history | edited | AnalogKid | CC BY-SA 4.0 |
added 19 characters in body
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| Feb 12, 2019 at 4:59 | comment | added | AnalogKid | I understand that the breakdown voltage on the datasheet is between 40.0 V and 44.2 V, with a maximum clamping voltage of 58.1 V (at 10.4 A). mouser.com/datasheet/2/240/… | |
| Feb 12, 2019 at 4:28 | comment | added | D.A.S. | The protection must withstand withstand ESD and EFT tests to be IEC compliant on environmental disturbances. Not a good design to have shunt TVS unless it insulated and is shielded or on a ground plane then why bother with TVS | |
| Feb 12, 2019 at 3:26 | comment | added | user105652 | Do you understand that TVS diodes have a sharp clamp voltage much like zener diodes? 40 volts forced across a 36 volt TVS diode would burn it up quickly. | |
| Feb 12, 2019 at 3:19 | history | answered | AnalogKid | CC BY-SA 4.0 |