TVS Selection Guidelines
1. Select a device with a working voltage that is greater than the maximum bus voltage.
2. Select a device with a clamping voltage less than the maximum specified surge voltage for the protected circuit.
3. A bidirectional TVS device may be required for differential amplifier circuits with a common mode offset voltage requirement. The common voltage specification is required when there is a significant difference in the voltage potential between the ground reference of the transmitting and receiving nodes.
4. Choose a TVS device that is capable of dissipating the energy of the surge pulse.
5. The power rating of most TVS devices decreases with temperature and a derating of the TVS’s energy specification maybe necessary.
6. The capacitance of the TVS device should be minimized for high speed circuits.
1. Select a device with a working voltage that is greater than the maximum bus voltage.
2. Select a device with a clamping voltage less than the maximum specified surge voltage for the protected circuit.
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| TVS IC |
3. A bidirectional TVS device may be required for differential amplifier circuits with a common mode offset voltage requirement. The common voltage specification is required when there is a significant difference in the voltage potential between the ground reference of the transmitting and receiving nodes.
4. Choose a TVS device that is capable of dissipating the energy of the surge pulse.
5. The power rating of most TVS devices decreases with temperature and a derating of the TVS’s energy specification maybe necessary.
6. The capacitance of the TVS device should be minimized for high speed circuits.
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