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LMR33630-Q1: Can ion-migration occur resulting in a Vt shift, which may allow the device to be partially ON when the gate/input is OFF?

Kygo Cheng
Expert 6830 points
Part Number: LMR33630-Q1

Hi Team,

There is a good new that DIN LMR33630-Q1

For all integrated circuits (IC's, e.g. HSD, LSD, Others),  the device will not lose control of the Gate/input signal when exposed to a negative gate to source bias.  This can generally occur if the device has an open circuit (gate/input is near zero volts (commanded OFF) and the source is pulled high via a current source on the output used for open circuit detection, or if the source/output is shorted to battery).  Can ion-migration occur resulting in a Vt shift, which may allow the device to be partially ON when the gate/input is OFF?

  • +1
    TI__Guru 72375 points

    Hello

    I will assume you are talking about the EN input of the LMR33630-Q1.

    As long as the voltage on the EN input is within the boundaries given in the data sheet EC table, the Recommend Operating Conditions, and the Absolute Maximum Ratings tables, then the EN function will operate correctly.

    If you need more information, please contact me through your TI email.

    Thanks