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Does TVS protect the gate-source Mosfet in TLE92108?

Does TVS protect the gate-source Mosfet in TLE92108?

Infineon_Team
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Yes, TVS (Transient Voltage Suppressor) are intended to protect the gate-source of the respective MOSFETs in case of transients on VBAT.
The Zener voltage:

  • must be lower than the absolute max. rating of the MOSFET VGS
  • should be higher than VCP - VS delivered by the charge pump
  • if it is not possible, then the Zener diode must be high enough to limit the current flow out of the charge pump, in combination with the series resistor at the CP pin. It is recommended to limit the current out of CP below 1 mA. For example, Vzener min = 15 V, (VCP - VS)max = 17 V, Rcp,series = 4.7 k, then Icp max = (17-15)/4k7 = 0.42 mA. 
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