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What will happen in a live-insertion application using a normal CMOS driver without live-insertion protection circuit?

April 26, 2017application circuit CMOS driver live-insertion normal

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What will happen in a live-insertion application using a normal CMOS driver without live-insertion protection circuit?

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It is not recommended to use a normal CMOS driver without live-insertion protection circuit because the signal from the motherboard (backplane) applied to the driver output will be forwarded by the parasitic diode in the PMOS to the Vcc at 0V delayed by the bypass capacitance. Please refer to application note 62 and application brief 39 for more details.