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Hi,
We need to protect the above LVDS transceiver 92LV010A from a lightning surge. the lightning transient define at RTCA-DO-160G SECTION 22 level 3 A3J3L3 = Pin injection level 3.
the transient is an exponent waveform : voltage = 300V current =60A for a period of 70 microsecond.
For that purpose we used a protecting device SEMTECH TVS ARRAY with a clamping voltage of = 20V.
The LVDS tranceiver 92LV010A max voltage absoulite (accordign to datasheet is) = 3.3V (continues)
Question#1 : is the 20V protecting device clamping voltage for a 100 microsecond period can damage the transceiver ? what is the max. transient voltage that the transceiver can absorb before damage?
Question#2 : Is there a need for a series resistors to limit the current ? and if this allow in tems of signal integrety of the LVDS ?
Question #3 : is there another solution to protect this transceiver ? or if there an alternative LVDS transceiver for a better lightning protecting approach ?
