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(ADR3533)What will happen if Vout short to GND?

Hi !

I have some questions about ADR3533.

Our customer are asking me this question.

Q1)

What will happen if Vout short to GND?

Would it broke the device?

Or would it be no problem?

Q2)

If the device will broke, can you explain why the device will broke?

If the device won't broke can you explain why the device won't broke?

VIN=5V

ENABLE=5V

GND_SENSE=0V

GND_FORCE=0V

VOUT_SENSE=0V

VOUT_FORCE=0V

Best regards.

Kawa

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  • Hi Kawa-san,

    Sorry for the delay.

    The ~60 mA you’re getting is valid. This short to ground current is the IDS of the output transistor which is based on the transistor size, VGS, and VDS applied during the short circuit event. At ambient, the device will likely to survive assuming the duration is relatively short. But it will also likely to cause reliability issue.

    Regards,

    Phil

Reply
  • Hi Kawa-san,

    Sorry for the delay.

    The ~60 mA you’re getting is valid. This short to ground current is the IDS of the output transistor which is based on the transistor size, VGS, and VDS applied during the short circuit event. At ambient, the device will likely to survive assuming the duration is relatively short. But it will also likely to cause reliability issue.

    Regards,

    Phil

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